Gemini 3.1 Pro Preview is Google’s reasoning-oriented text model for complex tasks that need software engineering, algorithmic development or synthesis of multimodal evidence. It builds on Gemini 3 Pro, emphasizing precise tool use, more efficient reasoning and reliable multi-step execution. Text, images, audio, video and PDF can contribute to a written answer, a code artifact or a structured result.
For a demanding coding assignment, provide the goal, relevant repository material, observed behaviour and the constraints to retain. Entire code repositories can supply context for the assignment. For a code-contract review, ask the model to compare two modules’ handling of a shared data contract, identify the mismatch and propose a focused correction with supporting code references. The useful output distinguishes the analysis, proposed revision and evidence from any validation performed by the connected application.
The launch material demonstrates code-based visual explanations and interactive projects, including animated SVG output from a text brief. These are code artifacts rather than raster-image generation. A clear brief can define what should be explained, how the visual should behave and the data it should represent. Review the resulting code and rendering against those requirements. For a data-synthesis task, supply the actual sources and ask for one view that preserves the relationships and qualifications found in them.
The documented thinking levels are low, medium and high, with high as the default for 3.1 Pro Preview. Thinking cannot be fully disabled in this Pro profile. Choose lower effort for a bounded answer and more reasoning for difficult multi-step work, while leaving sufficient output allowance for the final artifact. A small output cap can interrupt reasoning before a usable final answer appears. The thinking guide separates a summary of reasoning from the full internal process and explains why the conversation’s thought-signature context matters.
The exact Preview table lists function calling, code execution, search grounding, Maps grounding, URL context and structured outputs. It scopes File Search to AI Studio. Provide function purposes and parameter definitions and continue from the real returned result. The separate Custom Tools Preview profile is optimized to prioritize custom tools and bash; it is a distinct named producer endpoint, so that specialization should not be silently treated as a property of every 3.1 Pro request. Select a structured result schema when a task needs defined records instead of unrestricted prose.
For multimodal analysis, identify the relevant page, visual, recording interval or video event. For document analysis, compare a diagram with its written specification and return each discrepancy with its supporting passage. A spoken source can contribute a transcript or an interpretation in text. Preserve source references for the conclusions that need checking, and separate what is visible or stated from what is inferred. This profile’s output remains text, including code; native image or speech generation is not part of its exact capability table.
The native 3.1 Pro card specifies up to 1M context and 64K text output, and the exact Preview API table gives 1,048,576 input tokens and 65,536 output tokens. Include instructions, conversation history and media in the input budget. Caching and batch processing are documented, with Flex and Priority options also listed for the producer profile. For several independent items, define the required output and retain each source identifier rather than combining unrelated evidence into one untraceable answer.
The named Preview edition remains distinct from Pro’s Custom Tools profile and subsequent Flash or Pro releases. Its strengths concern complex reasoning, coding and evidence synthesis; the final artifact still needs checking against the source and the actual tool results. Retain unresolved ambiguity when the supplied information does not support a definite conclusion. A useful deliverable is the supported answer, code or record the task requested, with enough evidence to assess its practical limits.
", "aboutText": "Gemini 3.1 Pro Preview is Google’s reasoning-oriented text model for complex tasks that need software engineering, algorithmic development or synthesis of multimodal evidence. It builds on Gemini 3 Pro, emphasizing precise tool use, more efficient reasoning and reliable multi-step execution. Text, images, audio, video and PDF can contribute to a written answer, a code artifact or a structured result.\n\nFor a demanding coding assignment, provide the goal, relevant repository material, observed behaviour and the constraints to retain. Entire code repositories can supply context for the assignment. For a code-contract review, ask the model to compare two modules’ handling of a shared data contract, identify the mismatch and propose a focused correction with supporting code references. The useful output distinguishes the analysis, proposed revision and evidence from any validation performed by the connected application.\n\nThe launch material demonstrates code-based visual explanations and interactive projects, including animated SVG output from a text brief. These are code artifacts rather than raster-image generation. A clear brief can define what should be explained, how the visual should behave and the data it should represent. Review the resulting code and rendering against those requirements. For a data-synthesis task, supply the actual sources and ask for one view that preserves the relationships and qualifications found in them.\n\nThe documented thinking levels are low, medium and high, with high as the default for 3.1 Pro Preview. Thinking cannot be fully disabled in this Pro profile. Choose lower effort for a bounded answer and more reasoning for difficult multi-step work, while leaving sufficient output allowance for the final artifact. A small output cap can interrupt reasoning before a usable final answer appears. The thinking guide separates a summary of reasoning from the full internal process and explains why the conversation’s thought-signature context matters.\n\nThe exact Preview table lists function calling, code execution, search grounding, Maps grounding, URL context and structured outputs. It scopes File Search to AI Studio. Provide function purposes and parameter definitions and continue from the real returned result. The separate Custom Tools Preview profile is optimized to prioritize custom tools and bash; it is a distinct named producer endpoint, so that specialization should not be silently treated as a property of every 3.1 Pro request. Select a structured result schema when a task needs defined records instead of unrestricted prose.\n\nFor multimodal analysis, identify the relevant page, visual, recording interval or video event. For document analysis, compare a diagram with its written specification and return each discrepancy with its supporting passage. A spoken source can contribute a transcript or an interpretation in text. Preserve source references for the conclusions that need checking, and separate what is visible or stated from what is inferred. This profile’s output remains text, including code; native image or speech generation is not part of its exact capability table.\n\nThe native 3.1 Pro card specifies up to 1M context and 64K text output, and the exact Preview API table gives 1,048,576 input tokens and 65,536 output tokens. Include instructions, conversation history and media in the input budget. Caching and batch processing are documented, with Flex and Priority options also listed for the producer profile. For several independent items, define the required output and retain each source identifier rather than combining unrelated evidence into one untraceable answer.\n\nThe named Preview edition remains distinct from Pro’s Custom Tools profile and subsequent Flash or Pro releases. Its strengths concern complex reasoning, coding and evidence synthesis; the final artifact still needs checking against the source and the actual tool results. Retain unresolved ambiguity when the supplied information does not support a definite conclusion. A useful deliverable is the supported answer, code or record the task requested, with enough evidence to assess its practical limits.", "editorialOverlay": { "copy_fields": { "practical_html": "Technical example in English
Review a cross-module date contract\n\nReview this contract mismatch. Producer emits {due_date: "2026-11-03"}; consumer reads record.dueDate and displays "No date" when missing. Existing stored records use due_date. Propose the smallest compatible correction and tests for both present and absent dates. Preserve the producer field and do not add a second stored field.A short mismatch analysis, a focused consumer patch and tests covering the stored field and missing-value behavior.Check that the patch reads due_date without changing persisted records or treating an absent date as a valid one.gemini-3.1-pro-previewGemini 3.1 Pro Preview is Google’s multimodal reasoning model for complex software, algorithm and knowledge tasks. It accepts text, images, audio, video and PDF and returns text or code, with tools and structured output. Low, medium and high reasoning levels guide effort; high is the documented default.
This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.
Gemini 3.1 Pro Preview is Google’s reasoning-oriented text model for complex tasks that need software engineering, algorithmic development or synthesis of multimodal evidence. It builds on Gemini 3 Pro, emphasizing precise tool use, more efficient reasoning and reliable multi-step execution. Text, images, audio, video and PDF can contribute to a written answer, a code artifact or a structured result.
For a demanding coding assignment, provide the goal, relevant repository material, observed behaviour and the constraints to retain. Entire code repositories can supply context for the assignment. For a code-contract review, ask the model to compare two modules’ handling of a shared data contract, identify the mismatch and propose a focused correction with supporting code references. The useful output distinguishes the analysis, proposed revision and evidence from any validation performed by the connected application.
The launch material demonstrates code-based visual explanations and interactive projects, including animated SVG output from a text brief. These are code artifacts rather than raster-image generation. A clear brief can define what should be explained, how the visual should behave and the data it should represent. Review the resulting code and rendering against those requirements. For a data-synthesis task, supply the actual sources and ask for one view that preserves the relationships and qualifications found in them.
The documented thinking levels are low, medium and high, with high as the default for 3.1 Pro Preview. Thinking cannot be fully disabled in this Pro profile. Choose lower effort for a bounded answer and more reasoning for difficult multi-step work, while leaving sufficient output allowance for the final artifact. A small output cap can interrupt reasoning before a usable final answer appears. The thinking guide separates a summary of reasoning from the full internal process and explains why the conversation’s thought-signature context matters.
The exact Preview table lists function calling, code execution, search grounding, Maps grounding, URL context and structured outputs. It scopes File Search to AI Studio. Provide function purposes and parameter definitions and continue from the real returned result. The separate Custom Tools Preview profile is optimized to prioritize custom tools and bash; it is a distinct named producer endpoint, so that specialization should not be silently treated as a property of every 3.1 Pro request. Select a structured result schema when a task needs defined records instead of unrestricted prose.
For multimodal analysis, identify the relevant page, visual, recording interval or video event. For document analysis, compare a diagram with its written specification and return each discrepancy with its supporting passage. A spoken source can contribute a transcript or an interpretation in text. Preserve source references for the conclusions that need checking, and separate what is visible or stated from what is inferred. This profile’s output remains text, including code; native image or speech generation is not part of its exact capability table.
The native 3.1 Pro card specifies up to 1M context and 64K text output, and the exact Preview API table gives 1,048,576 input tokens and 65,536 output tokens. Include instructions, conversation history and media in the input budget. Caching and batch processing are documented, with Flex and Priority options also listed for the producer profile. For several independent items, define the required output and retain each source identifier rather than combining unrelated evidence into one untraceable answer.
The named Preview edition remains distinct from Pro’s Custom Tools profile and subsequent Flash or Pro releases. Its strengths concern complex reasoning, coding and evidence synthesis; the final artifact still needs checking against the source and the actual tool results. Retain unresolved ambiguity when the supplied information does not support a definite conclusion. A useful deliverable is the supported answer, code or record the task requested, with enough evidence to assess its practical limits.
POST /v1/messagestext, imagetext| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldmodel | Typestring | RequirementRequired | Values & limits gemini-3.1-pro-preview | Default— |
Fieldmessages | Typemessage[] | RequirementRequired | Values & limits Minimum items: 1 | Default— |
Fieldmessages[].role | Typestring | RequirementRequired | Values & limits user, assistant | Default— |
Fieldmessages[].content | Typestring|content_block[] | RequirementRequired | Values & limits | Default— |
Fieldsystem | Typestring|content_block[] | RequirementOptional | Values & limits | Default— |
Fieldmax_tokens | Typeinteger | RequirementRequired | Values & limits Minimum: 1 Limit applies to: exact selected model/card ceiling | Default— |
Fieldstream | Typeboolean | RequirementOptional | Values & limits | Defaultfalse |
Fieldtemperature | Typenumber | RequirementOptional | Values & limits Model-specific | Default— |
Fieldtop_p | Typenumber | RequirementOptional | Values & limits Model-specific | Default— |
Fieldstop_sequences | Typestring[] | RequirementOptional | Values & limits Model-specific | Default— |
Fieldtools | Typetool[] | RequirementOptional | Values & limits Model-specific | Default— |
Fieldtools[].name | Typestring | RequirementOptional | Values & limits Applies when: tool supplied | Default— |
Fieldtools[].description | Typestring | RequirementOptional | Values & limits | Default— |
Fieldtools[].input_schema | TypeJSON_schema | RequirementOptional | Values & limits | Default— |
Fieldtool_choice | Typeobject | RequirementOptional | Values & limits Model-specific | Default— |
Fieldthinking.type | Typestring | RequirementOptional | Values & limits Model-specific | Default— |
Fieldthinking.budget_tokens | Typeinteger | RequirementOptional | Values & limits Model-specific | Default— |
Fieldoutput_config.effort | Typestring | RequirementOptional | Values & limits Model-specific | Default— |
Fieldmetadata | Typeobject | RequirementOptional | Values & limits | Default— |
Fieldcache_control | Typeobject | RequirementOptional | Values & limits Model-specific | Default— |
Text · UTF8 text
messages[].content or type=text block
Text + image
{type:image,source:{type:base64,media_type,data}} or source type=url
| Parameter | Contract |
|---|---|
Parametermaterial_types | Contracttext, image |
Parameterrequired | Contractmodel, messages, max_tokens |
Parameteroptional_controls | Contractnull |
Parametercontent_type | Contractapplication/json |
Parametertext_file_material | Contractactual UTF-8 content inserted as text; file IDs/URLs need separate exact support |
Lifecycle: exact retained published method
Method shapes and IDs are exact; supplier capability is separate from admission.
POST /v1/messages| Request size, tokens | Input | Output | Cache read | Cache write | 5 min cache | 1 hour cache |
|---|---|---|---|---|---|---|
| Request size, tokens(0; 200,000] | Input$0.002 | Output$0.012 | Cache read$0.0002 | Cache writeBase: — | 5 min cacheBase: — | 1 hour cacheBase: — |
| Request size, tokens(200,000; ∞) | Input$0.004 | Output$0.018 | Cache read$0.0004 | Cache writeBase: — | 5 min cacheBase: — | 1 hour cacheBase: — |
Rates in USD per 1K tokens. If no rate is set, the base rate for this method is inherited; «—» means no base rate is set.
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
Model-level reference schedules do not change method selection, quotes or charges. Active charges use the selected Ailoot method rates.
Match each charge to the conditions shown. Use one rate for each set of alternative configurations.
| Configuration | Rate schedule | Context tokens, more than | Context tokens, up to and including | Charge |
|---|---|---|---|---|
| ConfigurationOpenAI Chat · Base token rates | Rate scheduleBase rate | Context tokens, more than— | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens Output · Reasoning output tokens $0.024 / 1K tokens |
| ConfigurationOpenAI Chat · Request-length tier 1 | Rate schedule— | Context tokens, more than0 | Context tokens, up to and including200,000 | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationOpenAI Chat · Request-length tier 2 | Rate schedule— | Context tokens, more than200,000 | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.008 / 1K tokens Output · Output tokens $0.036 / 1K tokens Input · Cache read $0.0008 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationAnthropic Messages · Base token rates | Rate scheduleBase rate | Context tokens, more than— | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens Output · Reasoning output tokens $0.024 / 1K tokens |
| ConfigurationAnthropic Messages · Request-length tier 1 | Rate schedule— | Context tokens, more than0 | Context tokens, up to and including200,000 | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationAnthropic Messages · Request-length tier 2 | Rate schedule— | Context tokens, more than200,000 | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.008 / 1K tokens Output · Output tokens $0.036 / 1K tokens Input · Cache read $0.0008 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
set -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\n: "${AILOOT_TEXT_FILE:?Set your actual UTF-8 source-material file}"\nexport AILOOT_TEXT_FILE\npython3 - <<'PY_REQUEST'\nimport json,os\nfrom pathlib import Path\np=json.loads('{"model": "gemini-3.1-pro-preview", "max_tokens": 1024, "messages": []}')\nf=Path(os.environ["AILOOT_TEXT_FILE"])\nif not f.is_file():raise SystemExit("Choose your actual UTF-8 source material")\ntext=f.read_text(encoding="utf-8")\nif not text.strip():raise SystemExit("Source material must contain text")\np["messages"]=[{"role":"user","content":"Summarize this material and quote supporting source passages.\\n\\n"+text}]\nPath("request.json").write_text(json.dumps(p,ensure_ascii=False))\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/messages \\\n -H "x-api-key: $AILOOT_API_KEY" -H 'anthropic-version: 2023-06-01' -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nprint(json.dumps(json.loads(Path("result.json").read_text()),ensure_ascii=False,indent=2))\nPY_RESULT\nset -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\n: "${AILOOT_IMAGE_FILE:?Set your actual PNG JPEG or WebP image}"\nexport AILOOT_IMAGE_FILE\npython3 - <<'PY_REQUEST'\nimport json,os\nfrom pathlib import Path\np=json.loads('{"model": "gemini-3.1-pro-preview", "max_tokens": 1024, "messages": [{"role": "user", "content": [{"type": "text", "text": "Read labels and numbers in this image; flag unreadable text."}]}]}')\nimport base64\nf=Path(os.environ["AILOOT_IMAGE_FILE"])\nif not f.is_file():raise SystemExit("Choose an actual PNG JPEG or WebP image")\nraw=f.read_bytes()\nmime="image/png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "image/jpeg" if raw.startswith(b"\\xff\\xd8") else "image/webp" if raw[:4]==b"RIFF" and raw[8:12]==b"WEBP" else None\nif not mime:raise SystemExit("Use PNG JPEG or WebP")\nb64=base64.b64encode(raw).decode()\np["messages"][0]["content"].append({"type":"image","source":{"type":"base64","media_type":mime,"data":b64}})\nPath("request.json").write_text(json.dumps(p,ensure_ascii=False))\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/messages \\\n -H "x-api-key: $AILOOT_API_KEY" -H 'anthropic-version: 2023-06-01' -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nprint(json.dumps(json.loads(Path("result.json").read_text()),ensure_ascii=False,indent=2))\nPY_RESULT\nimport anthropic\nimport os\n\nif not os.environ.get("AILOOT_API_KEY", "").strip(): raise SystemExit("Set AILOOT_API_KEY before making a request")\nclient = anthropic.Anthropic(base_url="https://api.ailoot.ai", api_key=os.environ["AILOOT_API_KEY"], max_retries=0)\nmsg = client.messages.create(\n model="gemini-3.1-pro-preview",\n max_tokens=1024,\n messages=[{"role": "user", "content": "Explain the difference between an observation and a hypothesis in three sentences."}],\n)\nimport base64, json\nfrom pathlib import Path\n\ndef save_result(data, stem="result"):\n # Keep every field, including usage, IDs, reasoning and tool requests.\n Path(stem + ".json").write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")\n print(json.dumps(data, ensure_ascii=False, indent=2))\n def save_blob(encoded, suffix, label):\n raw = base64.b64decode(encoded, altchars=b"-_", validate=True)\n ext = "png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "jpg" if raw.startswith(b"\\xff\\xd8") else "webp" if raw[:4] == b"RIFF" and raw[8:12] == b"WEBP" else suffix\n file = Path(stem + "-" + label + "." + ext)\n file.write_bytes(raw)\n print("Saved", file)\n for index, block in enumerate(data.get("content") or []):\n print("Content", index, json.dumps(block, ensure_ascii=False))\n for choice in data.get("choices") or []:\n print("Choice", choice.get("index"), json.dumps(choice.get("message", choice.get("delta", {})), ensure_ascii=False))\n for index, item in enumerate(data.get("output") or []):\n print("Output", index, json.dumps(item, ensure_ascii=False))\n if item.get("type") == "image_generation_call" and item.get("result"):\n save_blob(item["result"], item.get("output_format") or "bin", "output-" + str(index))\n for ci, candidate in enumerate(data.get("candidates") or []):\n for pi, part in enumerate((candidate.get("content") or {}).get("parts") or []):\n print("Candidate/part", ci, pi, json.dumps(part, ensure_ascii=False))\n blob = part.get("inlineData") or part.get("inline_data")\n if blob and blob.get("data"):\n mime = blob.get("mimeType") or blob.get("mime_type")\n suffix = {"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"}.get(mime, "bin")\n save_blob(blob["data"], suffix, "candidate-" + str(ci) + "-part-" + str(pi))\n\nsave_result(msg.to_dict(mode="json"))\nimport Anthropic from "@anthropic-ai/sdk";\n\nif (!process.env.AILOOT_API_KEY?.trim()) throw new Error("Set AILOOT_API_KEY before making a request");\nconst client = new Anthropic({ baseURL: "https://api.ailoot.ai", apiKey: process.env.AILOOT_API_KEY, maxRetries: 0 });\nconst msg = await client.messages.create({\n model: "gemini-3.1-pro-preview",\n max_tokens: 1024,\n messages: [{ role: "user", content: "Explain the difference between an observation and a hypothesis in three sentences." }],\n});\nimport { writeFileSync } from "node:fs";\n\nfunction saveResult(data, stem = "result") {\n writeFileSync(stem + ".json", JSON.stringify(data, null, 2));\n console.log(JSON.stringify(data, null, 2));\n const saveBlob = (encoded, suffix, label) => {\n const raw = Buffer.from(encoded, "base64");\n const ext = raw.subarray(0,8).equals(Buffer.from([137,80,78,71,13,10,26,10])) ? "png" : raw[0]===255 && raw[1]===216 ? "jpg" : raw.subarray(0,4).toString()==="RIFF" && raw.subarray(8,12).toString()==="WEBP" ? "webp" : suffix;\n const file = `${stem}-${label}.${ext}`;\n writeFileSync(file, raw); console.log("Saved", file);\n };\n for (const [i, block] of (data.content || []).entries()) console.log("Content", i, JSON.stringify(block));\n for (const choice of data.choices || []) console.log("Choice", choice.index, JSON.stringify(choice.message || choice.delta || {}));\n for (const [i, item] of (data.output || []).entries()) {\n console.log("Output", i, JSON.stringify(item));\n if (item.type === "image_generation_call" && item.result) saveBlob(item.result, item.output_format || "bin", `output-${i}`);\n }\n for (const [ci, candidate] of (data.candidates || []).entries()) {\n for (const [pi, part] of (candidate.content?.parts || []).entries()) {\n console.log("Candidate/part", ci, pi, JSON.stringify(part));\n const blob = part.inlineData || part.inline_data;\n if (blob?.data) {\n const mime = blob.mimeType || blob.mime_type;\n const suffix = ({"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"})[mime] || "bin";\n saveBlob(blob.data, suffix, `candidate-${ci}-part-${pi}`);\n }\n }\n }\n}\n\nsaveResult(msg);\nimport anthropic,os\nfrom pathlib import Path\n\nif not os.environ.get("AILOOT_API_KEY", "").strip(): raise SystemExit("Set AILOOT_API_KEY before making a request")\nclient=anthropic.Anthropic(base_url="https://api.ailoot.ai",api_key=os.environ["AILOOT_API_KEY"],max_retries=0)\nimport base64, json\nfrom pathlib import Path\n\ndef save_result(data, stem="result"):\n # Keep every field, including usage, IDs, reasoning and tool requests.\n Path(stem + ".json").write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")\n print(json.dumps(data, ensure_ascii=False, indent=2))\n def save_blob(encoded, suffix, label):\n raw = base64.b64decode(encoded, altchars=b"-_", validate=True)\n ext = "png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "jpg" if raw.startswith(b"\\xff\\xd8") else "webp" if raw[:4] == b"RIFF" and raw[8:12] == b"WEBP" else suffix\n file = Path(stem + "-" + label + "." + ext)\n file.write_bytes(raw)\n print("Saved", file)\n for index, block in enumerate(data.get("content") or []):\n print("Content", index, json.dumps(block, ensure_ascii=False))\n for choice in data.get("choices") or []:\n print("Choice", choice.get("index"), json.dumps(choice.get("message", choice.get("delta", {})), ensure_ascii=False))\n for index, item in enumerate(data.get("output") or []):\n print("Output", index, json.dumps(item, ensure_ascii=False))\n if item.get("type") == "image_generation_call" and item.get("result"):\n save_blob(item["result"], item.get("output_format") or "bin", "output-" + str(index))\n for ci, candidate in enumerate(data.get("candidates") or []):\n for pi, part in enumerate((candidate.get("content") or {}).get("parts") or []):\n print("Candidate/part", ci, pi, json.dumps(part, ensure_ascii=False))\n blob = part.get("inlineData") or part.get("inline_data")\n if blob and blob.get("data"):\n mime = blob.get("mimeType") or blob.get("mime_type")\n suffix = {"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"}.get(mime, "bin")\n save_blob(blob["data"], suffix, "candidate-" + str(ci) + "-part-" + str(pi))\n\nwith client.messages.stream(model='gemini-3.1-pro-preview',max_tokens=1024,messages=[{"role":"user","content":"Explain observations and hypotheses in three sentences."}]) as stream:\n with Path("stream-events.jsonl").open("w",encoding="utf-8") as log:\n for event in stream:\n payload=event.to_dict(mode="json")\n log.write(json.dumps(payload,ensure_ascii=False)+"\\n"); log.flush()\n print(json.dumps(payload,ensure_ascii=False))\n final=stream.get_final_message()\n save_result(final.to_dict(mode="json"),"stream-result")\njson or SSE
Keep every complete returned response, file and content part.
Keep all content blocks, thinking signatures and actual tool-use IDs. Assemble all SSE block deltas; a first text block is not the complete output.
Keep request/response IDs and headers. No generic text job retrieval URL is supplied.
| Field | Type |
|---|---|
Fieldid | Typestring |
Fieldmodel | Typestring |
Fieldcontent[] | Typetext|thinking|tool_use|other content block |
Fieldstop_reason | Typestring|null |
Fieldusage | Typeobject |
| Response | Condition | Next step |
|---|---|---|
Response400 · invalid_request_error | ConditionInvalid required fields, material representation or parameter value | Next stepCorrect the indicated fields before a new creation request. |
Ailoot gemini-3.1-pro-preview
Ailoot Ultra gemini-3.1-pro-preview, google/gemini-3.1-pro-preview~google/gemini-pro-latest
/chat/completions
google/gemini-3.1-pro-preview, ~google/gemini-pro-latest, gemini-3.1-pro-preview, gemini-3.1-pro-preview
gemini-3.1-pro-previewGemini 3.1 Pro Preview is Google’s multimodal reasoning model for complex software, algorithm and knowledge tasks. It accepts text, images, audio, video and PDF and returns text or code, with tools and structured output. Low, medium and high reasoning levels guide effort; high is the documented default.
This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.
Gemini 3.1 Pro Preview is Google’s reasoning-oriented text model for complex tasks that need software engineering, algorithmic development or synthesis of multimodal evidence. It builds on Gemini 3 Pro, emphasizing precise tool use, more efficient reasoning and reliable multi-step execution. Text, images, audio, video and PDF can contribute to a written answer, a code artifact or a structured result.
For a demanding coding assignment, provide the goal, relevant repository material, observed behaviour and the constraints to retain. Entire code repositories can supply context for the assignment. For a code-contract review, ask the model to compare two modules’ handling of a shared data contract, identify the mismatch and propose a focused correction with supporting code references. The useful output distinguishes the analysis, proposed revision and evidence from any validation performed by the connected application.
The launch material demonstrates code-based visual explanations and interactive projects, including animated SVG output from a text brief. These are code artifacts rather than raster-image generation. A clear brief can define what should be explained, how the visual should behave and the data it should represent. Review the resulting code and rendering against those requirements. For a data-synthesis task, supply the actual sources and ask for one view that preserves the relationships and qualifications found in them.
The documented thinking levels are low, medium and high, with high as the default for 3.1 Pro Preview. Thinking cannot be fully disabled in this Pro profile. Choose lower effort for a bounded answer and more reasoning for difficult multi-step work, while leaving sufficient output allowance for the final artifact. A small output cap can interrupt reasoning before a usable final answer appears. The thinking guide separates a summary of reasoning from the full internal process and explains why the conversation’s thought-signature context matters.
The exact Preview table lists function calling, code execution, search grounding, Maps grounding, URL context and structured outputs. It scopes File Search to AI Studio. Provide function purposes and parameter definitions and continue from the real returned result. The separate Custom Tools Preview profile is optimized to prioritize custom tools and bash; it is a distinct named producer endpoint, so that specialization should not be silently treated as a property of every 3.1 Pro request. Select a structured result schema when a task needs defined records instead of unrestricted prose.
For multimodal analysis, identify the relevant page, visual, recording interval or video event. For document analysis, compare a diagram with its written specification and return each discrepancy with its supporting passage. A spoken source can contribute a transcript or an interpretation in text. Preserve source references for the conclusions that need checking, and separate what is visible or stated from what is inferred. This profile’s output remains text, including code; native image or speech generation is not part of its exact capability table.
The native 3.1 Pro card specifies up to 1M context and 64K text output, and the exact Preview API table gives 1,048,576 input tokens and 65,536 output tokens. Include instructions, conversation history and media in the input budget. Caching and batch processing are documented, with Flex and Priority options also listed for the producer profile. For several independent items, define the required output and retain each source identifier rather than combining unrelated evidence into one untraceable answer.
The named Preview edition remains distinct from Pro’s Custom Tools profile and subsequent Flash or Pro releases. Its strengths concern complex reasoning, coding and evidence synthesis; the final artifact still needs checking against the source and the actual tool results. Retain unresolved ambiguity when the supplied information does not support a definite conclusion. A useful deliverable is the supported answer, code or record the task requested, with enough evidence to assess its practical limits.
POST /v1beta/models/{model}:generateContenttext, imagetext| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldpath.model | Typestring | RequirementRequired | Values & limits gemini-3.1-pro-preview | Default— |
Fieldcontents | Typecontent[] | RequirementRequired | Values & limits Minimum items: 1 | Default— |
Fieldcontents[].role | Typestring | RequirementOptional | Values & limits user, model | Default— |
Fieldcontents[].parts | Typepart[] | RequirementRequired | Values & limits | Default— |
FieldsystemInstruction | Typecontent | RequirementOptional | Values & limits | Default— |
FieldgenerationConfig.maxOutputTokens | Typeinteger | RequirementOptional | Values & limits Minimum: 1 Model-specific | Default— |
FieldgenerationConfig.temperature | Typenumber | RequirementOptional | Values & limits Model-specific | Default— |
FieldgenerationConfig.topP | Typenumber | RequirementOptional | Values & limits Model-specific | Default— |
FieldgenerationConfig.topK | Typeinteger | RequirementOptional | Values & limits Model-specific | Default— |
FieldgenerationConfig.stopSequences | Typestring[] | RequirementOptional | Values & limits Model-specific | Default— |
FieldgenerationConfig.thinkingConfig.includeThoughts | Typeboolean | RequirementOptional | Values & limits Model-specific | Default— |
FieldgenerationConfig.thinkingConfig.thinkingBudget | Typeinteger | RequirementOptional | Values & limits Model-specific | Default— |
Fieldtools[].functionDeclarations | Typefunction_declaration[] | RequirementOptional | Values & limits Model-specific | Default— |
FieldtoolConfig.functionCallingConfig.mode | Typestring | RequirementOptional | Values & limits Model-specific | Default— |
FieldsafetySettings | Typeobject[] | RequirementOptional | Values & limits Model-specific | Default— |
FieldsessionId | Typestring | RequirementOptional | Values & limits | Default— |
Text · UTF8 text
contents[].parts[].text
Text + image
parts[].inlineData={mimeType,data}
| Parameter | Contract |
|---|---|
Parametermaterial_types | Contracttext, image |
Parameterrequired | Contractcontents |
Parameteroptional_controls | Contractnull |
Parametercontent_type | Contractapplication/json |
Parametertext_file_material | Contractactual UTF-8 content inserted as text; file IDs/URLs need separate exact support |
Lifecycle: exact retained published method
Method shapes and IDs are exact; supplier capability is separate from admission.
POST /v1beta/models/{model}:generateContent| Request size, tokens | Input | Output | Cache read | Cache write | 5 min cache | 1 hour cache |
|---|---|---|---|---|---|---|
| Request size, tokens(0; 200,000] | Input$0.002 | Output$0.012 | Cache read$0.0002 | Cache writeBase: — | 5 min cacheBase: — | 1 hour cacheBase: — |
| Request size, tokens(200,000; ∞) | Input$0.004 | Output$0.018 | Cache read$0.0004 | Cache writeBase: — | 5 min cacheBase: — | 1 hour cacheBase: — |
Rates in USD per 1K tokens. If no rate is set, the base rate for this method is inherited; «—» means no base rate is set.
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
Model-level reference schedules do not change method selection, quotes or charges. Active charges use the selected Ailoot method rates.
Match each charge to the conditions shown. Use one rate for each set of alternative configurations.
| Configuration | Rate schedule | Context tokens, more than | Context tokens, up to and including | Charge |
|---|---|---|---|---|
| ConfigurationOpenAI Chat · Base token rates | Rate scheduleBase rate | Context tokens, more than— | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens Output · Reasoning output tokens $0.024 / 1K tokens |
| ConfigurationOpenAI Chat · Request-length tier 1 | Rate schedule— | Context tokens, more than0 | Context tokens, up to and including200,000 | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationOpenAI Chat · Request-length tier 2 | Rate schedule— | Context tokens, more than200,000 | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.008 / 1K tokens Output · Output tokens $0.036 / 1K tokens Input · Cache read $0.0008 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationAnthropic Messages · Base token rates | Rate scheduleBase rate | Context tokens, more than— | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens Output · Reasoning output tokens $0.024 / 1K tokens |
| ConfigurationAnthropic Messages · Request-length tier 1 | Rate schedule— | Context tokens, more than0 | Context tokens, up to and including200,000 | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationAnthropic Messages · Request-length tier 2 | Rate schedule— | Context tokens, more than200,000 | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.008 / 1K tokens Output · Output tokens $0.036 / 1K tokens Input · Cache read $0.0008 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
set -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\n: "${AILOOT_TEXT_FILE:?Set your actual UTF-8 source-material file}"\nexport AILOOT_TEXT_FILE\npython3 - <<'PY_REQUEST'\nimport json,os\nfrom pathlib import Path\np=json.loads('{"contents": []}')\nf=Path(os.environ["AILOOT_TEXT_FILE"])\nif not f.is_file():raise SystemExit("Choose your actual UTF-8 source material")\ntext=f.read_text(encoding="utf-8")\nif not text.strip():raise SystemExit("Source material must contain text")\np["contents"]=[{"role":"user","parts":[{"text":"Summarize this material and quote supporting source passages.\\n\\n"+text}]}]\nPath("request.json").write_text(json.dumps(p,ensure_ascii=False))\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1beta/models/gemini-3.1-pro-preview:generateContent \\\n -H "x-goog-api-key: $AILOOT_API_KEY" -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport base64, json\nfrom pathlib import Path\n\ndef save_result(data, stem="result"):\n # Keep every field, including usage, IDs, reasoning and tool requests.\n Path(stem + ".json").write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")\n print(json.dumps(data, ensure_ascii=False, indent=2))\n def save_blob(encoded, suffix, label):\n raw = base64.b64decode(encoded, altchars=b"-_", validate=True)\n ext = "png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "jpg" if raw.startswith(b"\\xff\\xd8") else "webp" if raw[:4] == b"RIFF" and raw[8:12] == b"WEBP" else suffix\n file = Path(stem + "-" + label + "." + ext)\n file.write_bytes(raw)\n print("Saved", file)\n for index, block in enumerate(data.get("content") or []):\n print("Content", index, json.dumps(block, ensure_ascii=False))\n for choice in data.get("choices") or []:\n print("Choice", choice.get("index"), json.dumps(choice.get("message", choice.get("delta", {})), ensure_ascii=False))\n for index, item in enumerate(data.get("output") or []):\n print("Output", index, json.dumps(item, ensure_ascii=False))\n if item.get("type") == "image_generation_call" and item.get("result"):\n save_blob(item["result"], item.get("output_format") or "bin", "output-" + str(index))\n for ci, candidate in enumerate(data.get("candidates") or []):\n for pi, part in enumerate((candidate.get("content") or {}).get("parts") or []):\n print("Candidate/part", ci, pi, json.dumps(part, ensure_ascii=False))\n blob = part.get("inlineData") or part.get("inline_data")\n if blob and blob.get("data"):\n mime = blob.get("mimeType") or blob.get("mime_type")\n suffix = {"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"}.get(mime, "bin")\n save_blob(blob["data"], suffix, "candidate-" + str(ci) + "-part-" + str(pi))\n\nsave_result(json.loads(Path("result.json").read_text(encoding="utf-8")))\nPY_RESULT\nset -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\n: "${AILOOT_IMAGE_FILE:?Set your actual PNG JPEG or WebP image}"\nexport AILOOT_IMAGE_FILE\npython3 - <<'PY_REQUEST'\nimport json,os\nfrom pathlib import Path\np=json.loads('{"contents": [{"role": "user", "parts": [{"text": "Read labels and numbers in this image; flag unreadable text."}]}]}')\nimport base64\nf=Path(os.environ["AILOOT_IMAGE_FILE"])\nif not f.is_file():raise SystemExit("Choose an actual PNG JPEG or WebP image")\nraw=f.read_bytes()\nmime="image/png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "image/jpeg" if raw.startswith(b"\\xff\\xd8") else "image/webp" if raw[:4]==b"RIFF" and raw[8:12]==b"WEBP" else None\nif not mime:raise SystemExit("Use PNG JPEG or WebP")\nb64=base64.b64encode(raw).decode()\np["contents"][0]["parts"].append({"inlineData":{"mimeType":mime,"data":b64}})\nPath("request.json").write_text(json.dumps(p,ensure_ascii=False))\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1beta/models/gemini-3.1-pro-preview:generateContent \\\n -H "x-goog-api-key: $AILOOT_API_KEY" -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport base64, json\nfrom pathlib import Path\n\ndef save_result(data, stem="result"):\n # Keep every field, including usage, IDs, reasoning and tool requests.\n Path(stem + ".json").write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")\n print(json.dumps(data, ensure_ascii=False, indent=2))\n def save_blob(encoded, suffix, label):\n raw = base64.b64decode(encoded, altchars=b"-_", validate=True)\n ext = "png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "jpg" if raw.startswith(b"\\xff\\xd8") else "webp" if raw[:4] == b"RIFF" and raw[8:12] == b"WEBP" else suffix\n file = Path(stem + "-" + label + "." + ext)\n file.write_bytes(raw)\n print("Saved", file)\n for index, block in enumerate(data.get("content") or []):\n print("Content", index, json.dumps(block, ensure_ascii=False))\n for choice in data.get("choices") or []:\n print("Choice", choice.get("index"), json.dumps(choice.get("message", choice.get("delta", {})), ensure_ascii=False))\n for index, item in enumerate(data.get("output") or []):\n print("Output", index, json.dumps(item, ensure_ascii=False))\n if item.get("type") == "image_generation_call" and item.get("result"):\n save_blob(item["result"], item.get("output_format") or "bin", "output-" + str(index))\n for ci, candidate in enumerate(data.get("candidates") or []):\n for pi, part in enumerate((candidate.get("content") or {}).get("parts") or []):\n print("Candidate/part", ci, pi, json.dumps(part, ensure_ascii=False))\n blob = part.get("inlineData") or part.get("inline_data")\n if blob and blob.get("data"):\n mime = blob.get("mimeType") or blob.get("mime_type")\n suffix = {"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"}.get(mime, "bin")\n save_blob(blob["data"], suffix, "candidate-" + str(ci) + "-part-" + str(pi))\n\nsave_result(json.loads(Path("result.json").read_text(encoding="utf-8")))\nPY_RESULT\nfrom google import genai\nfrom google.genai import types\nimport os\n\nif not os.environ.get("AILOOT_API_KEY", "").strip(): raise SystemExit("Set AILOOT_API_KEY before making a request")\nclient = genai.Client(\n api_key=os.environ["AILOOT_API_KEY"],\n http_options=types.HttpOptions(base_url="https://api.ailoot.ai"),\n)\nresp = client.models.generate_content(model="gemini-3.1-pro-preview", contents="Explain the difference between an observation and a hypothesis in three sentences.")\nimport base64, json\nfrom pathlib import Path\n\ndef save_result(data, stem="result"):\n # Keep every field, including usage, IDs, reasoning and tool requests.\n Path(stem + ".json").write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")\n print(json.dumps(data, ensure_ascii=False, indent=2))\n def save_blob(encoded, suffix, label):\n raw = base64.b64decode(encoded, altchars=b"-_", validate=True)\n ext = "png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "jpg" if raw.startswith(b"\\xff\\xd8") else "webp" if raw[:4] == b"RIFF" and raw[8:12] == b"WEBP" else suffix\n file = Path(stem + "-" + label + "." + ext)\n file.write_bytes(raw)\n print("Saved", file)\n for index, block in enumerate(data.get("content") or []):\n print("Content", index, json.dumps(block, ensure_ascii=False))\n for choice in data.get("choices") or []:\n print("Choice", choice.get("index"), json.dumps(choice.get("message", choice.get("delta", {})), ensure_ascii=False))\n for index, item in enumerate(data.get("output") or []):\n print("Output", index, json.dumps(item, ensure_ascii=False))\n if item.get("type") == "image_generation_call" and item.get("result"):\n save_blob(item["result"], item.get("output_format") or "bin", "output-" + str(index))\n for ci, candidate in enumerate(data.get("candidates") or []):\n for pi, part in enumerate((candidate.get("content") or {}).get("parts") or []):\n print("Candidate/part", ci, pi, json.dumps(part, ensure_ascii=False))\n blob = part.get("inlineData") or part.get("inline_data")\n if blob and blob.get("data"):\n mime = blob.get("mimeType") or blob.get("mime_type")\n suffix = {"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"}.get(mime, "bin")\n save_blob(blob["data"], suffix, "candidate-" + str(ci) + "-part-" + str(pi))\n\nsave_result(resp.to_json_dict())\nimport { GoogleGenAI } from "@google/genai";\n\nif (!process.env.AILOOT_API_KEY?.trim()) throw new Error("Set AILOOT_API_KEY before making a request");\nconst ai = new GoogleGenAI({ apiKey: process.env.AILOOT_API_KEY, httpOptions: { baseUrl: "https://api.ailoot.ai" } });\nconst resp = await ai.models.generateContent({ model: "gemini-3.1-pro-preview", contents: "Explain the difference between an observation and a hypothesis in three sentences." });\nimport { writeFileSync } from "node:fs";\n\nfunction saveResult(data, stem = "result") {\n writeFileSync(stem + ".json", JSON.stringify(data, null, 2));\n console.log(JSON.stringify(data, null, 2));\n const saveBlob = (encoded, suffix, label) => {\n const raw = Buffer.from(encoded, "base64");\n const ext = raw.subarray(0,8).equals(Buffer.from([137,80,78,71,13,10,26,10])) ? "png" : raw[0]===255 && raw[1]===216 ? "jpg" : raw.subarray(0,4).toString()==="RIFF" && raw.subarray(8,12).toString()==="WEBP" ? "webp" : suffix;\n const file = `${stem}-${label}.${ext}`;\n writeFileSync(file, raw); console.log("Saved", file);\n };\n for (const [i, block] of (data.content || []).entries()) console.log("Content", i, JSON.stringify(block));\n for (const choice of data.choices || []) console.log("Choice", choice.index, JSON.stringify(choice.message || choice.delta || {}));\n for (const [i, item] of (data.output || []).entries()) {\n console.log("Output", i, JSON.stringify(item));\n if (item.type === "image_generation_call" && item.result) saveBlob(item.result, item.output_format || "bin", `output-${i}`);\n }\n for (const [ci, candidate] of (data.candidates || []).entries()) {\n for (const [pi, part] of (candidate.content?.parts || []).entries()) {\n console.log("Candidate/part", ci, pi, JSON.stringify(part));\n const blob = part.inlineData || part.inline_data;\n if (blob?.data) {\n const mime = blob.mimeType || blob.mime_type;\n const suffix = ({"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"})[mime] || "bin";\n saveBlob(blob.data, suffix, `candidate-${ci}-part-${pi}`);\n }\n }\n }\n}\n\nsaveResult(resp);\nfrom google import genai\nfrom google.genai import types\nimport os\nfrom pathlib import Path\n\nif not os.environ.get("AILOOT_API_KEY", "").strip(): raise SystemExit("Set AILOOT_API_KEY before making a request")\nclient=genai.Client(api_key=os.environ["AILOOT_API_KEY"],http_options=types.HttpOptions(base_url="https://api.ailoot.ai"))\nimport base64, json\nfrom pathlib import Path\n\ndef save_result(data, stem="result"):\n # Keep every field, including usage, IDs, reasoning and tool requests.\n Path(stem + ".json").write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")\n print(json.dumps(data, ensure_ascii=False, indent=2))\n def save_blob(encoded, suffix, label):\n raw = base64.b64decode(encoded, altchars=b"-_", validate=True)\n ext = "png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "jpg" if raw.startswith(b"\\xff\\xd8") else "webp" if raw[:4] == b"RIFF" and raw[8:12] == b"WEBP" else suffix\n file = Path(stem + "-" + label + "." + ext)\n file.write_bytes(raw)\n print("Saved", file)\n for index, block in enumerate(data.get("content") or []):\n print("Content", index, json.dumps(block, ensure_ascii=False))\n for choice in data.get("choices") or []:\n print("Choice", choice.get("index"), json.dumps(choice.get("message", choice.get("delta", {})), ensure_ascii=False))\n for index, item in enumerate(data.get("output") or []):\n print("Output", index, json.dumps(item, ensure_ascii=False))\n if item.get("type") == "image_generation_call" and item.get("result"):\n save_blob(item["result"], item.get("output_format") or "bin", "output-" + str(index))\n for ci, candidate in enumerate(data.get("candidates") or []):\n for pi, part in enumerate((candidate.get("content") or {}).get("parts") or []):\n print("Candidate/part", ci, pi, json.dumps(part, ensure_ascii=False))\n blob = part.get("inlineData") or part.get("inline_data")\n if blob and blob.get("data"):\n mime = blob.get("mimeType") or blob.get("mime_type")\n suffix = {"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"}.get(mime, "bin")\n save_blob(blob["data"], suffix, "candidate-" + str(ci) + "-part-" + str(pi))\n\ncount=0\nwith Path("stream-events.jsonl").open("w",encoding="utf-8") as log:\n for chunk in client.models.generate_content_stream(model='gemini-3.1-pro-preview',contents="Explain observations and hypotheses in three sentences."):\n payload=chunk.to_json_dict()\n log.write(json.dumps(payload,ensure_ascii=False)+"\\n"); log.flush()\n save_result(payload,"stream-chunk-"+str(count))\n count+=1\njson or supported streaming
Keep every complete returned response, file and content part.
Keep all candidates and parts, including function calls, thought signatures and usage; assemble stream chunks in order.
Keep request/response IDs and headers. No generic text job retrieval URL is supplied.
| Field | Type |
|---|---|
FieldresponseId | Typestring |
FieldmodelVersion | Typestring |
Fieldcandidates[].content.parts[] | Typetext|inlineData|functionCall|other part |
Fieldcandidates[].finishReason | Typestring |
FieldusageMetadata | Typeobject |
| Response | Condition | Next step |
|---|---|---|
Response400 · invalid_request_error | ConditionInvalid required fields, material representation or parameter value | Next stepCorrect the indicated fields before a new creation request. |
Ailoot gemini-3.1-pro-preview
Ailoot Ultra gemini-3.1-pro-preview, google/gemini-3.1-pro-preview~google/gemini-pro-latest
/chat/completions
google/gemini-3.1-pro-preview, ~google/gemini-pro-latest, gemini-3.1-pro-preview, gemini-3.1-pro-preview
gemini-3.1-pro-previewGemini 3.1 Pro Preview is Google’s multimodal reasoning model for complex software, algorithm and knowledge tasks. It accepts text, images, audio, video and PDF and returns text or code, with tools and structured output. Low, medium and high reasoning levels guide effort; high is the documented default.
This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.
Gemini 3.1 Pro Preview is Google’s reasoning-oriented text model for complex tasks that need software engineering, algorithmic development or synthesis of multimodal evidence. It builds on Gemini 3 Pro, emphasizing precise tool use, more efficient reasoning and reliable multi-step execution. Text, images, audio, video and PDF can contribute to a written answer, a code artifact or a structured result.
For a demanding coding assignment, provide the goal, relevant repository material, observed behaviour and the constraints to retain. Entire code repositories can supply context for the assignment. For a code-contract review, ask the model to compare two modules’ handling of a shared data contract, identify the mismatch and propose a focused correction with supporting code references. The useful output distinguishes the analysis, proposed revision and evidence from any validation performed by the connected application.
The launch material demonstrates code-based visual explanations and interactive projects, including animated SVG output from a text brief. These are code artifacts rather than raster-image generation. A clear brief can define what should be explained, how the visual should behave and the data it should represent. Review the resulting code and rendering against those requirements. For a data-synthesis task, supply the actual sources and ask for one view that preserves the relationships and qualifications found in them.
The documented thinking levels are low, medium and high, with high as the default for 3.1 Pro Preview. Thinking cannot be fully disabled in this Pro profile. Choose lower effort for a bounded answer and more reasoning for difficult multi-step work, while leaving sufficient output allowance for the final artifact. A small output cap can interrupt reasoning before a usable final answer appears. The thinking guide separates a summary of reasoning from the full internal process and explains why the conversation’s thought-signature context matters.
The exact Preview table lists function calling, code execution, search grounding, Maps grounding, URL context and structured outputs. It scopes File Search to AI Studio. Provide function purposes and parameter definitions and continue from the real returned result. The separate Custom Tools Preview profile is optimized to prioritize custom tools and bash; it is a distinct named producer endpoint, so that specialization should not be silently treated as a property of every 3.1 Pro request. Select a structured result schema when a task needs defined records instead of unrestricted prose.
For multimodal analysis, identify the relevant page, visual, recording interval or video event. For document analysis, compare a diagram with its written specification and return each discrepancy with its supporting passage. A spoken source can contribute a transcript or an interpretation in text. Preserve source references for the conclusions that need checking, and separate what is visible or stated from what is inferred. This profile’s output remains text, including code; native image or speech generation is not part of its exact capability table.
The native 3.1 Pro card specifies up to 1M context and 64K text output, and the exact Preview API table gives 1,048,576 input tokens and 65,536 output tokens. Include instructions, conversation history and media in the input budget. Caching and batch processing are documented, with Flex and Priority options also listed for the producer profile. For several independent items, define the required output and retain each source identifier rather than combining unrelated evidence into one untraceable answer.
The named Preview edition remains distinct from Pro’s Custom Tools profile and subsequent Flash or Pro releases. Its strengths concern complex reasoning, coding and evidence synthesis; the final artifact still needs checking against the source and the actual tool results. Retain unresolved ambiguity when the supplied information does not support a definite conclusion. A useful deliverable is the supported answer, code or record the task requested, with enough evidence to assess its practical limits.
POST /v1/chat/completionstexttext| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldmodel | Typestring | RequirementRequired | Values & limits gemini-3.1-pro-preview | Default— |
Fieldmessages | Typemessage[] | RequirementRequired | Values & limits Minimum items: 1 | Default— |
Fieldmessages[].role | Typestring | RequirementRequired | Values & limits Model-specific | Default— |
Fieldmessages[].content | Typestring | RequirementOptional | Values & limits Applies when: Text conversation | Default— |
Fieldstream | Typeboolean | RequirementOptional | Values & limits | Defaultfalse |
Text · UTF8 text
messages[].content
| Parameter | Contract |
|---|---|
Parametercontent_type | Contractapplication/json |
Parameterrequired | Contractmodel, messages |
Parametermaterial_types | Contracttext |
Parametermessages | Contractmessage array with role/content shape |
Parameterfile_material | Contractactual UTF-8 document inserted as literal text; no file ID inferred |
Parameteroptional_controls | Contractstream |
Parametercontrol_scope | ContractText conversation; stream is a boolean and defaults to false. |
Parameteroutput_modalities | Contracttext |
Parameterhosted_operations | Contractfalse |
Parametermultimodal_input_binding | Contractnull |
Method aliases: /chat/completions
Lifecycle: synchronous_or_streamed
Send exact model ID with messages.
Context length is not an output cap.
A text file may supply literal text; image/audio/file-object inputs need exact binding.
Tariff references do not add request options. Supported parameters are listed for the selected method.
Match each charge to the conditions shown. Use one rate for each set of alternative configurations.
| Configuration | Rate schedule | Context tokens, more than | Context tokens, up to and including | Charge |
|---|---|---|---|---|
| ConfigurationBase token rates | Rate scheduleBase rate | Context tokens, more than— | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens Output · Reasoning output tokens $0.024 / 1K tokens |
| ConfigurationRequest-length tier 1 | Rate schedule— | Context tokens, more than0 | Context tokens, up to and including200,000 | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationRequest-length tier 2 | Rate schedule— | Context tokens, more than200,000 | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.008 / 1K tokens Output · Output tokens $0.036 / 1K tokens Input · Cache read $0.0008 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
set -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\npython3 - <<'PY_REQUEST'\nimport json,os\nfrom pathlib import Path\np=json.loads('{"model":"gemini-3.1-pro-preview","messages":[{"role":"user","content":"hello"}],"stream":false}')\n\nPath("request.json").write_text(json.dumps(p,ensure_ascii=False))\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/chat/completions \\\n -H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nr=json.loads(Path("result.json").read_text())\nfor x in r.get("choices",[]):\n if x.get("message",{}).get("content"): print(x["message"]["content"])\nPY_RESULT\nfrom openai import OpenAI\nimport os\n\nif not os.environ.get("AILOOT_API_KEY", "").strip(): raise SystemExit("Set AILOOT_API_KEY before making a request")\nclient=OpenAI(base_url="https://api.ailoot.ai/v1",api_key=os.environ["AILOOT_API_KEY"],max_retries=0)\nresult=client.chat.completions.create(model="gemini-3.1-pro-preview", messages=[{"role":"user","content":"hello"}], stream=False)\nimport base64, json\nfrom pathlib import Path\n\ndef save_result(data, stem="result"):\n # Keep every field, including usage, IDs, reasoning and tool requests.\n Path(stem + ".json").write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")\n print(json.dumps(data, ensure_ascii=False, indent=2))\n def save_blob(encoded, suffix, label):\n raw = base64.b64decode(encoded, altchars=b"-_", validate=True)\n ext = "png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "jpg" if raw.startswith(b"\\xff\\xd8") else "webp" if raw[:4] == b"RIFF" and raw[8:12] == b"WEBP" else suffix\n file = Path(stem + "-" + label + "." + ext)\n file.write_bytes(raw)\n print("Saved", file)\n for index, block in enumerate(data.get("content") or []):\n print("Content", index, json.dumps(block, ensure_ascii=False))\n for choice in data.get("choices") or []:\n print("Choice", choice.get("index"), json.dumps(choice.get("message", choice.get("delta", {})), ensure_ascii=False))\n for index, item in enumerate(data.get("output") or []):\n print("Output", index, json.dumps(item, ensure_ascii=False))\n if item.get("type") == "image_generation_call" and item.get("result"):\n save_blob(item["result"], item.get("output_format") or "bin", "output-" + str(index))\n for ci, candidate in enumerate(data.get("candidates") or []):\n for pi, part in enumerate((candidate.get("content") or {}).get("parts") or []):\n print("Candidate/part", ci, pi, json.dumps(part, ensure_ascii=False))\n blob = part.get("inlineData") or part.get("inline_data")\n if blob and blob.get("data"):\n mime = blob.get("mimeType") or blob.get("mime_type")\n suffix = {"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"}.get(mime, "bin")\n save_blob(blob["data"], suffix, "candidate-" + str(ci) + "-part-" + str(pi))\n\nsave_result(result.to_dict(mode="json"))\njson or SSE
Keep every complete returned response, file and content part.
Keep every choice and its content/tool calls/reasoning. In SSE assemble deltas by choice/tool index, retain the final finish reason and usage.
Keep request/response IDs and headers. No generic text job retrieval URL is supplied.
| Field | Type |
|---|---|
Fieldchoices[].index | Typeinteger |
Fieldchoices[].message.content | Typestring|null |
Fieldchoices[].message.tool_calls | Typetool_call[] |
Fieldchoices[].message.reasoning_content | Typestring |
Fieldchoices[].message.reasoning_details | Typeobject|array |
Fieldchoices[].finish_reason | Typestring|null |
Fieldusage | Typeobject |
| Response | Condition | Next step |
|---|---|---|
Response400 · invalid_request_error | ConditionInvalid required fields, material representation or parameter value | Next stepCorrect the indicated fields before a new creation request. |
Ailoot gemini-3.1-pro-preview
Ailoot Ultra gemini-3.1-pro-preview, google/gemini-3.1-pro-preview~google/gemini-pro-latest
/chat/completions
google/gemini-3.1-pro-preview, ~google/gemini-pro-latest, gemini-3.1-pro-preview, gemini-3.1-pro-preview
gemini-3.1-pro-previewGemini 3.1 Pro Preview is Google’s multimodal reasoning model for complex software, algorithm and knowledge tasks. It accepts text, images, audio, video and PDF and returns text or code, with tools and structured output. Low, medium and high reasoning levels guide effort; high is the documented default.
This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.
Gemini 3.1 Pro Preview is Google’s reasoning-oriented text model for complex tasks that need software engineering, algorithmic development or synthesis of multimodal evidence. It builds on Gemini 3 Pro, emphasizing precise tool use, more efficient reasoning and reliable multi-step execution. Text, images, audio, video and PDF can contribute to a written answer, a code artifact or a structured result.
For a demanding coding assignment, provide the goal, relevant repository material, observed behaviour and the constraints to retain. Entire code repositories can supply context for the assignment. For a code-contract review, ask the model to compare two modules’ handling of a shared data contract, identify the mismatch and propose a focused correction with supporting code references. The useful output distinguishes the analysis, proposed revision and evidence from any validation performed by the connected application.
The launch material demonstrates code-based visual explanations and interactive projects, including animated SVG output from a text brief. These are code artifacts rather than raster-image generation. A clear brief can define what should be explained, how the visual should behave and the data it should represent. Review the resulting code and rendering against those requirements. For a data-synthesis task, supply the actual sources and ask for one view that preserves the relationships and qualifications found in them.
The documented thinking levels are low, medium and high, with high as the default for 3.1 Pro Preview. Thinking cannot be fully disabled in this Pro profile. Choose lower effort for a bounded answer and more reasoning for difficult multi-step work, while leaving sufficient output allowance for the final artifact. A small output cap can interrupt reasoning before a usable final answer appears. The thinking guide separates a summary of reasoning from the full internal process and explains why the conversation’s thought-signature context matters.
The exact Preview table lists function calling, code execution, search grounding, Maps grounding, URL context and structured outputs. It scopes File Search to AI Studio. Provide function purposes and parameter definitions and continue from the real returned result. The separate Custom Tools Preview profile is optimized to prioritize custom tools and bash; it is a distinct named producer endpoint, so that specialization should not be silently treated as a property of every 3.1 Pro request. Select a structured result schema when a task needs defined records instead of unrestricted prose.
For multimodal analysis, identify the relevant page, visual, recording interval or video event. For document analysis, compare a diagram with its written specification and return each discrepancy with its supporting passage. A spoken source can contribute a transcript or an interpretation in text. Preserve source references for the conclusions that need checking, and separate what is visible or stated from what is inferred. This profile’s output remains text, including code; native image or speech generation is not part of its exact capability table.
The native 3.1 Pro card specifies up to 1M context and 64K text output, and the exact Preview API table gives 1,048,576 input tokens and 65,536 output tokens. Include instructions, conversation history and media in the input budget. Caching and batch processing are documented, with Flex and Priority options also listed for the producer profile. For several independent items, define the required output and retain each source identifier rather than combining unrelated evidence into one untraceable answer.
The named Preview edition remains distinct from Pro’s Custom Tools profile and subsequent Flash or Pro releases. Its strengths concern complex reasoning, coding and evidence synthesis; the final artifact still needs checking against the source and the actual tool results. Retain unresolved ambiguity when the supplied information does not support a definite conclusion. A useful deliverable is the supported answer, code or record the task requested, with enough evidence to assess its practical limits.
POST /v1/messagestextjson, sse| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldmodel | Typestring | RequirementRequired | Values & limits gemini-3.1-pro-preview | Default— |
Fieldmessages | Typemessage[] | RequirementRequired | Values & limits | Default— |
Fieldmessages[].role | Typestring | RequirementRequired | Values & limits user, assistant | Default— |
Fieldmessages[].content | Typestring | RequirementRequired | Values & limits | Default— |
Fieldmax_tokens | Typeinteger | RequirementRequired | Values & limits | Default— |
Fieldstream | Typeboolean | RequirementOptional | Values & limits | Defaultfalse |
Text · UTF-8 text
messages[].content string
| Parameter | Contract |
|---|---|
Parametercontent_type | Contractapplication/json |
Parameterrequired | Contractmodel, messages, max_tokens |
Parameteroptional_controls | Contractstream |
Parametermaterial_types | Contracttext |
Parametertext_file_material | ContractRead the actual UTF-8 document and put its text in the indicated input or message content string. |
Lifecycle: synchronous_or_streamed
Tariff references do not add request options. Supported parameters are listed for the selected method.
Match each charge to the conditions shown. Use one rate for each set of alternative configurations.
| Configuration | Rate schedule | Context tokens, more than | Context tokens, up to and including | Charge |
|---|---|---|---|---|
| ConfigurationBase token rates | Rate scheduleBase rate | Context tokens, more than— | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens Output · Reasoning output tokens $0.024 / 1K tokens |
| ConfigurationRequest-length tier 1 | Rate schedule— | Context tokens, more than0 | Context tokens, up to and including200,000 | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationRequest-length tier 2 | Rate schedule— | Context tokens, more than200,000 | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.008 / 1K tokens Output · Output tokens $0.036 / 1K tokens Input · Cache read $0.0008 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
{\n "model": "gemini-3.1-pro-preview",\n "max_tokens": 128,\n "messages": [\n {\n "role": "user",\n "content": "Summarize the incident report."\n }\n ],\n "stream": false\n}set -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\n: "${AILOOT_TEXT_FILE:?Set your actual UTF-8 document}"\nexport AILOOT_TEXT_FILE\npython3 - <<'PY_REQUEST'\nimport json, os\nfrom pathlib import Path\n\nsource_file = Path(os.environ['AILOOT_TEXT_FILE'])\nif not source_file.is_file():\n raise SystemExit('Set AILOOT_TEXT_FILE to your actual UTF-8 document')\ntext = source_file.read_text(encoding='utf-8')\nif not text.strip():\n raise SystemExit('Choose a document containing text')\npayload = {'model': 'gemini-3.1-pro-preview', 'max_tokens': 128, 'messages': [{'role': 'user', 'content': 'Summarize the incident report.'}]}\npayload['messages'][0]['content'] = 'Summarize this material and quote supporting source passages.\\n\\n' + text\nPath('request.json').write_text(json.dumps(payload, ensure_ascii=False), encoding='utf-8')\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/messages \\\n -H "x-api-key: $AILOOT_API_KEY" -H 'anthropic-version: 2023-06-01' -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\n\nresult = json.loads(Path('result.json').read_text(encoding='utf-8'))\nprint(json.dumps(result, ensure_ascii=False, indent=2))\nPY_RESULT\nimport json, os\nfrom pathlib import Path\n\nsource_file = Path(os.environ['AILOOT_TEXT_FILE'])\nif not source_file.is_file():\n raise SystemExit('Set AILOOT_TEXT_FILE to your actual UTF-8 document')\ntext = source_file.read_text(encoding='utf-8')\nif not text.strip():\n raise SystemExit('Choose a document containing text')\npayload = {'model': 'gemini-3.1-pro-preview', 'max_tokens': 128, 'messages': [{'role': 'user', 'content': 'Summarize the incident report.'}]}\npayload['messages'][0]['content'] = 'Summarize this material and quote supporting source passages.\\n\\n' + text\nfrom urllib.request import Request, urlopen\nfrom urllib.error import HTTPError\n\napi_key = os.environ['AILOOT_API_KEY']\nif not api_key.strip():\n raise SystemExit('Set AILOOT_API_KEY before making a request')\nheaders = {'x-api-key': 'PLACEHOLDER_KEY', 'anthropic-version': '2023-06-01', 'Content-Type': 'application/json'}\nheaders['x-api-key'] = api_key\nrequest = Request('https://api.ailoot.ai/v1/messages', data=json.dumps(payload, ensure_ascii=False).encode('utf-8'), headers=headers, method='POST')\ntry:\n with urlopen(request, timeout=120) as response:\n raw = response.read()\n Path('response-headers.txt').write_text(str(response.headers), encoding='utf-8')\nexcept HTTPError as error:\n Path('result.json').write_bytes(error.read())\n Path('response-headers.txt').write_text(str(error.headers), encoding='utf-8')\n raise\nPath('result.json').write_bytes(raw)\nimport json\nfrom pathlib import Path\n\nresult = json.loads(Path('result.json').read_text(encoding='utf-8'))\nprint(json.dumps(result, ensure_ascii=False, indent=2))\nJSON or SSE
Keep every complete returned response, file and content part.
Keep all content blocks, thinking signatures and actual tool-use IDs. Assemble all SSE block deltas; a first text block is not the complete output.
Keep request/response IDs and headers. No generic text job retrieval URL is supplied.
| Field | Type |
|---|---|
Fieldid | Typestring |
Fieldmodel | Typestring |
Fieldcontent[] | Typetext|thinking|tool_use|other content block |
Fieldstop_reason | Typestring|null |
Fieldusage | Typeobject |
| Response | Condition | Next step |
|---|---|---|
Response400 · invalid_request_error | ConditionInvalid required fields, material representation or parameter value | Next stepCorrect the indicated fields before a new creation request. |
Ailoot gemini-3.1-pro-preview
Ailoot Ultra gemini-3.1-pro-preview, google/gemini-3.1-pro-preview~google/gemini-pro-latest
/chat/completions
google/gemini-3.1-pro-preview, ~google/gemini-pro-latest, gemini-3.1-pro-preview, gemini-3.1-pro-preview
google/gemini-3.1-pro-previewGemini 3.1 Pro Preview is Google’s multimodal reasoning model for complex software, algorithm and knowledge tasks. It accepts text, images, audio, video and PDF and returns text or code, with tools and structured output. Low, medium and high reasoning levels guide effort; high is the documented default.
This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.
Gemini 3.1 Pro Preview is Google’s reasoning-oriented text model for complex tasks that need software engineering, algorithmic development or synthesis of multimodal evidence. It builds on Gemini 3 Pro, emphasizing precise tool use, more efficient reasoning and reliable multi-step execution. Text, images, audio, video and PDF can contribute to a written answer, a code artifact or a structured result.
For a demanding coding assignment, provide the goal, relevant repository material, observed behaviour and the constraints to retain. Entire code repositories can supply context for the assignment. For a code-contract review, ask the model to compare two modules’ handling of a shared data contract, identify the mismatch and propose a focused correction with supporting code references. The useful output distinguishes the analysis, proposed revision and evidence from any validation performed by the connected application.
The launch material demonstrates code-based visual explanations and interactive projects, including animated SVG output from a text brief. These are code artifacts rather than raster-image generation. A clear brief can define what should be explained, how the visual should behave and the data it should represent. Review the resulting code and rendering against those requirements. For a data-synthesis task, supply the actual sources and ask for one view that preserves the relationships and qualifications found in them.
The documented thinking levels are low, medium and high, with high as the default for 3.1 Pro Preview. Thinking cannot be fully disabled in this Pro profile. Choose lower effort for a bounded answer and more reasoning for difficult multi-step work, while leaving sufficient output allowance for the final artifact. A small output cap can interrupt reasoning before a usable final answer appears. The thinking guide separates a summary of reasoning from the full internal process and explains why the conversation’s thought-signature context matters.
The exact Preview table lists function calling, code execution, search grounding, Maps grounding, URL context and structured outputs. It scopes File Search to AI Studio. Provide function purposes and parameter definitions and continue from the real returned result. The separate Custom Tools Preview profile is optimized to prioritize custom tools and bash; it is a distinct named producer endpoint, so that specialization should not be silently treated as a property of every 3.1 Pro request. Select a structured result schema when a task needs defined records instead of unrestricted prose.
For multimodal analysis, identify the relevant page, visual, recording interval or video event. For document analysis, compare a diagram with its written specification and return each discrepancy with its supporting passage. A spoken source can contribute a transcript or an interpretation in text. Preserve source references for the conclusions that need checking, and separate what is visible or stated from what is inferred. This profile’s output remains text, including code; native image or speech generation is not part of its exact capability table.
The native 3.1 Pro card specifies up to 1M context and 64K text output, and the exact Preview API table gives 1,048,576 input tokens and 65,536 output tokens. Include instructions, conversation history and media in the input budget. Caching and batch processing are documented, with Flex and Priority options also listed for the producer profile. For several independent items, define the required output and retain each source identifier rather than combining unrelated evidence into one untraceable answer.
The named Preview edition remains distinct from Pro’s Custom Tools profile and subsequent Flash or Pro releases. Its strengths concern complex reasoning, coding and evidence synthesis; the final artifact still needs checking against the source and the actual tool results. Retain unresolved ambiguity when the supplied information does not support a definite conclusion. A useful deliverable is the supported answer, code or record the task requested, with enough evidence to assess its practical limits.
POST /v1/chat/completionstexttext| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldmodel | Typestring | RequirementRequired | Values & limits google/gemini-3.1-pro-preview | Default— |
Fieldmessages | Typemessage[] | RequirementRequired | Values & limits Minimum items: 1 | Default— |
Fieldmessages[].role | Typestring | RequirementRequired | Values & limits Examples: system, user, assistant, tool, function Conditions: These roles are explicitly represented by Source compatibility types; the exact model role set remains model-specific. Model-specific | Default— |
Fieldmessages[].content | Typestring|content_part[]|null | RequirementOptional | Values & limits | Default— |
Fieldmessages[].tool_calls | Typetool_call[] | RequirementOptional | Values & limits | Default— |
Fieldmessages[].tool_call_id | Typestring | RequirementOptional | Values & limits Applies when: role=tool; use actual returned ID | Default— |
Fieldmessages[].name | Typestring | RequirementOptional | Values & limits | Default— |
Fieldmessages[].reasoning_content | Typestring | RequirementOptional | Values & limits Applies when: Round-trip actual returned reasoning where this model uses it | Default— |
Fieldmessages[].reasoning_details | Typeobject|array | RequirementOptional | Values & limits Model-specific | Default— |
Fieldmax_tokens | Typeinteger | RequirementOptional | Values & limits Minimum: 1 Model-specific | Default— |
Fieldmax_completion_tokens | Typeinteger | RequirementOptional | Values & limits Minimum: 1 Model-specific | Default— |
Fieldstream | Typeboolean | RequirementOptional | Values & limits | Defaultfalse |
Fieldstream_options.include_usage | Typeboolean | RequirementOptional | Values & limits Model-specific | Default— |
Fieldtemperature | Typenumber | RequirementOptional | Values & limits Model-specific | Default— |
Fieldtop_p | Typenumber | RequirementOptional | Values & limits Model-specific | Default— |
Fieldstop | Typestring|string[] | RequirementOptional | Values & limits Model-specific | Default— |
Fieldtools | Typefunction_tool[] | RequirementOptional | Values & limits Model-specific | Default— |
Fieldtools[].type | Typestring | RequirementOptional | Values & limits function Model-specific | Default— |
Fieldtools[].function.name | Typestring | RequirementRequired | Values & limits Applies when: function tool supplied | Default— |
Fieldtools[].function.description | Typestring | RequirementOptional | Values & limits | Default— |
Fieldtools[].function.parameters | TypeJSON_schema | RequirementOptional | Values & limits | Default— |
Fieldtool_choice | Typestring|object | RequirementOptional | Values & limits Model-specific | Default— |
Fieldparallel_tool_calls | Typeboolean | RequirementOptional | Values & limits Model-specific | Default— |
Fieldresponse_format | Typeobject | RequirementOptional | Values & limits Model-specific | Default— |
Fieldreasoning_effort | Typestring | RequirementOptional | Values & limits Model-specific | Default— |
Fieldreasoning | Typeobject | RequirementOptional | Values & limits Model-specific | Default— |
Fieldservice_tier | Typestring | RequirementOptional | Values & limits Model-specific | Default— |
Fieldinstructions | Typestring | RequirementOptional | Values & limits Compatibility field | Default— |
Fieldfunctions | Typefunction[] | RequirementOptional | Values & limits Model-specific | Default— |
Fieldfunction_call | Typestring|object | RequirementOptional | Values & limits Model-specific | Default— |
Fieldprompt_cache_options | Typeobject | RequirementOptional | Values & limits Model-specific | Default— |
Fieldmodalities | Typestring[] | RequirementOptional | Values & limits text | Default— |
Fieldprovider | Typeobject | RequirementOptional | Values & limits Conditions: provider.options is rejected on this Ultra text route | Default— |
Fieldcache_control.ttl | Typestring | RequirementOptional | Values & limits Conditions: 1h is rejected in actual prompt-cache locations | Default— |
Text · UTF8 text
messages[].content
| Parameter | Contract |
|---|---|
Parametercontent_type | Contractapplication/json |
Parameterrequired | Contractmodel, messages |
Parametermaterial_types | Contracttext |
Parametermessages | Contractmessage array with role/content shape |
Parameterfile_material | Contractactual UTF-8 document inserted as literal text; no file ID inferred |
Parameteroptional_controls | Contractstream, temperature, top_p, stop, max_tokens, max_completion_tokens, reasoning, response_format, tools, tool_choice |
Parametercontrol_scope | Contractmodel-specific; user function tools differ from hosted tools |
Parameteroutput_modalities | Contracttext |
Parameterhosted_operations | Contractfalse |
Parametermultimodal_input_binding | Contractnull |
Lifecycle: synchronous_or_streamed
Send exact model ID with messages.
Context length is not an output cap.
A text file may supply literal text; image/audio/file-object inputs need exact binding.
Tariff references do not add request options. Supported parameters are listed for the selected method.
Match each charge to the conditions shown. Use one rate for each set of alternative configurations.
| Configuration | Rate schedule | Context tokens, more than | Context tokens, up to and including | Charge |
|---|---|---|---|---|
| ConfigurationBase token rates | Rate scheduleBase rate | Context tokens, more than— | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens Output · Reasoning output tokens $0.024 / 1K tokens |
| ConfigurationRequest-length tier 1 | Rate schedule— | Context tokens, more than0 | Context tokens, up to and including200,000 | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationRequest-length tier 2 | Rate schedule— | Context tokens, more than200,000 | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.008 / 1K tokens Output · Output tokens $0.036 / 1K tokens Input · Cache read $0.0008 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
set -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\npython3 - <<'PY_REQUEST'\nimport json,os\nfrom pathlib import Path\np=json.loads('{"model": "google/gemini-3.1-pro-preview", "messages": [{"role": "user", "content": "Explain the difference between an observation and a hypothesis in three sentences."}]}')\n\nPath("request.json").write_text(json.dumps(p,ensure_ascii=False))\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/chat/completions \\\n -H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nr=json.loads(Path("result.json").read_text())\nfor x in r.get("choices",[]):\n if x.get("message",{}).get("content"): print(x["message"]["content"])\nPY_RESULT\nfrom openai import OpenAI\nimport os\n\nif not os.environ.get("AILOOT_API_KEY", "").strip(): raise SystemExit("Set AILOOT_API_KEY before making a request")\nclient=OpenAI(base_url="https://api.ailoot.ai/v1",api_key=os.environ["AILOOT_API_KEY"],max_retries=0)\nresult=client.chat.completions.create(model='google/gemini-3.1-pro-preview',messages=[{"role":"user","content":"Explain observations and hypotheses in three sentences."}])\nimport base64, json\nfrom pathlib import Path\n\ndef save_result(data, stem="result"):\n # Keep every field, including usage, IDs, reasoning and tool requests.\n Path(stem + ".json").write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")\n print(json.dumps(data, ensure_ascii=False, indent=2))\n def save_blob(encoded, suffix, label):\n raw = base64.b64decode(encoded, altchars=b"-_", validate=True)\n ext = "png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "jpg" if raw.startswith(b"\\xff\\xd8") else "webp" if raw[:4] == b"RIFF" and raw[8:12] == b"WEBP" else suffix\n file = Path(stem + "-" + label + "." + ext)\n file.write_bytes(raw)\n print("Saved", file)\n for index, block in enumerate(data.get("content") or []):\n print("Content", index, json.dumps(block, ensure_ascii=False))\n for choice in data.get("choices") or []:\n print("Choice", choice.get("index"), json.dumps(choice.get("message", choice.get("delta", {})), ensure_ascii=False))\n for index, item in enumerate(data.get("output") or []):\n print("Output", index, json.dumps(item, ensure_ascii=False))\n if item.get("type") == "image_generation_call" and item.get("result"):\n save_blob(item["result"], item.get("output_format") or "bin", "output-" + str(index))\n for ci, candidate in enumerate(data.get("candidates") or []):\n for pi, part in enumerate((candidate.get("content") or {}).get("parts") or []):\n print("Candidate/part", ci, pi, json.dumps(part, ensure_ascii=False))\n blob = part.get("inlineData") or part.get("inline_data")\n if blob and blob.get("data"):\n mime = blob.get("mimeType") or blob.get("mime_type")\n suffix = {"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"}.get(mime, "bin")\n save_blob(blob["data"], suffix, "candidate-" + str(ci) + "-part-" + str(pi))\n\nsave_result(result.to_dict(mode="json"))\nfrom openai import OpenAI\nimport os\nfrom pathlib import Path\n\nif not os.environ.get("AILOOT_API_KEY", "").strip(): raise SystemExit("Set AILOOT_API_KEY before making a request")\nclient=OpenAI(base_url="https://api.ailoot.ai/v1",api_key=os.environ["AILOOT_API_KEY"],max_retries=0)\nimport base64, json\nfrom pathlib import Path\n\ndef save_result(data, stem="result"):\n # Keep every field, including usage, IDs, reasoning and tool requests.\n Path(stem + ".json").write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")\n print(json.dumps(data, ensure_ascii=False, indent=2))\n def save_blob(encoded, suffix, label):\n raw = base64.b64decode(encoded, altchars=b"-_", validate=True)\n ext = "png" if raw.startswith(b"\\x89PNG\\r\\n\\x1a\\n") else "jpg" if raw.startswith(b"\\xff\\xd8") else "webp" if raw[:4] == b"RIFF" and raw[8:12] == b"WEBP" else suffix\n file = Path(stem + "-" + label + "." + ext)\n file.write_bytes(raw)\n print("Saved", file)\n for index, block in enumerate(data.get("content") or []):\n print("Content", index, json.dumps(block, ensure_ascii=False))\n for choice in data.get("choices") or []:\n print("Choice", choice.get("index"), json.dumps(choice.get("message", choice.get("delta", {})), ensure_ascii=False))\n for index, item in enumerate(data.get("output") or []):\n print("Output", index, json.dumps(item, ensure_ascii=False))\n if item.get("type") == "image_generation_call" and item.get("result"):\n save_blob(item["result"], item.get("output_format") or "bin", "output-" + str(index))\n for ci, candidate in enumerate(data.get("candidates") or []):\n for pi, part in enumerate((candidate.get("content") or {}).get("parts") or []):\n print("Candidate/part", ci, pi, json.dumps(part, ensure_ascii=False))\n blob = part.get("inlineData") or part.get("inline_data")\n if blob and blob.get("data"):\n mime = blob.get("mimeType") or blob.get("mime_type")\n suffix = {"image/png":"png", "image/jpeg":"jpg", "image/webp":"webp", "audio/wav":"wav", "audio/mpeg":"mp3", "video/mp4":"mp4"}.get(mime, "bin")\n save_blob(blob["data"], suffix, "candidate-" + str(ci) + "-part-" + str(pi))\n\nwith client.chat.completions.stream(model='google/gemini-3.1-pro-preview',messages=[{"role":"user","content":"Explain observations and hypotheses in three sentences."}]) as stream:\n with Path("stream-events.jsonl").open("w",encoding="utf-8") as log:\n for event in stream:\n payload=event.to_dict(mode="json")\n log.write(json.dumps(payload,ensure_ascii=False)+"\\n"); log.flush()\n print(json.dumps(payload,ensure_ascii=False))\n final=stream.get_final_completion()\n save_result(final.to_dict(mode="json"),"stream-result")\njson or SSE
Keep every complete returned response, file and content part.
Keep every choice and its content/tool calls/reasoning. In SSE assemble deltas by choice/tool index, retain the final finish reason and usage.
Keep request/response IDs and headers. No generic text job retrieval URL is supplied.
| Field | Type |
|---|---|
Fieldchoices[].index | Typeinteger |
Fieldchoices[].message.content | Typestring|null |
Fieldchoices[].message.tool_calls | Typetool_call[] |
Fieldchoices[].message.reasoning_content | Typestring |
Fieldchoices[].message.reasoning_details | Typeobject|array |
Fieldchoices[].finish_reason | Typestring|null |
Fieldusage | Typeobject |
| Response | Condition | Next step |
|---|---|---|
Response400 · invalid_request_error | ConditionInvalid required fields, material representation or parameter value | Next stepCorrect the indicated fields before a new creation request. |
Ailoot gemini-3.1-pro-preview
Ailoot Ultra gemini-3.1-pro-preview, google/gemini-3.1-pro-preview~google/gemini-pro-latest
/chat/completions
google/gemini-3.1-pro-preview, ~google/gemini-pro-latest, gemini-3.1-pro-preview, gemini-3.1-pro-preview
google/gemini-3.1-pro-previewGemini 3.1 Pro Preview is Google’s multimodal reasoning model for complex software, algorithm and knowledge tasks. It accepts text, images, audio, video and PDF and returns text or code, with tools and structured output. Low, medium and high reasoning levels guide effort; high is the documented default.
This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.
Gemini 3.1 Pro Preview is Google’s reasoning-oriented text model for complex tasks that need software engineering, algorithmic development or synthesis of multimodal evidence. It builds on Gemini 3 Pro, emphasizing precise tool use, more efficient reasoning and reliable multi-step execution. Text, images, audio, video and PDF can contribute to a written answer, a code artifact or a structured result.
For a demanding coding assignment, provide the goal, relevant repository material, observed behaviour and the constraints to retain. Entire code repositories can supply context for the assignment. For a code-contract review, ask the model to compare two modules’ handling of a shared data contract, identify the mismatch and propose a focused correction with supporting code references. The useful output distinguishes the analysis, proposed revision and evidence from any validation performed by the connected application.
The launch material demonstrates code-based visual explanations and interactive projects, including animated SVG output from a text brief. These are code artifacts rather than raster-image generation. A clear brief can define what should be explained, how the visual should behave and the data it should represent. Review the resulting code and rendering against those requirements. For a data-synthesis task, supply the actual sources and ask for one view that preserves the relationships and qualifications found in them.
The documented thinking levels are low, medium and high, with high as the default for 3.1 Pro Preview. Thinking cannot be fully disabled in this Pro profile. Choose lower effort for a bounded answer and more reasoning for difficult multi-step work, while leaving sufficient output allowance for the final artifact. A small output cap can interrupt reasoning before a usable final answer appears. The thinking guide separates a summary of reasoning from the full internal process and explains why the conversation’s thought-signature context matters.
The exact Preview table lists function calling, code execution, search grounding, Maps grounding, URL context and structured outputs. It scopes File Search to AI Studio. Provide function purposes and parameter definitions and continue from the real returned result. The separate Custom Tools Preview profile is optimized to prioritize custom tools and bash; it is a distinct named producer endpoint, so that specialization should not be silently treated as a property of every 3.1 Pro request. Select a structured result schema when a task needs defined records instead of unrestricted prose.
For multimodal analysis, identify the relevant page, visual, recording interval or video event. For document analysis, compare a diagram with its written specification and return each discrepancy with its supporting passage. A spoken source can contribute a transcript or an interpretation in text. Preserve source references for the conclusions that need checking, and separate what is visible or stated from what is inferred. This profile’s output remains text, including code; native image or speech generation is not part of its exact capability table.
The native 3.1 Pro card specifies up to 1M context and 64K text output, and the exact Preview API table gives 1,048,576 input tokens and 65,536 output tokens. Include instructions, conversation history and media in the input budget. Caching and batch processing are documented, with Flex and Priority options also listed for the producer profile. For several independent items, define the required output and retain each source identifier rather than combining unrelated evidence into one untraceable answer.
The named Preview edition remains distinct from Pro’s Custom Tools profile and subsequent Flash or Pro releases. Its strengths concern complex reasoning, coding and evidence synthesis; the final artifact still needs checking against the source and the actual tool results. Retain unresolved ambiguity when the supplied information does not support a definite conclusion. A useful deliverable is the supported answer, code or record the task requested, with enough evidence to assess its practical limits.
POST /v1/messagestextjson, sse| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldmodel | Typestring | RequirementRequired | Values & limits google/gemini-3.1-pro-preview | Default— |
Fieldmessages | Typemessage[] | RequirementRequired | Values & limits | Default— |
Fieldmessages[].role | Typestring | RequirementRequired | Values & limits user, assistant | Default— |
Fieldmessages[].content | Typestring | RequirementRequired | Values & limits | Default— |
Fieldmax_tokens | Typeinteger | RequirementRequired | Values & limits | Default— |
Fieldstream | Typeboolean | RequirementOptional | Values & limits | Defaultfalse |
Text · UTF-8 text
messages[].content string
| Parameter | Contract |
|---|---|
Parametercontent_type | Contractapplication/json |
Parameterrequired | Contractmodel, messages, max_tokens |
Parameteroptional_controls | Contractstream |
Parametermaterial_types | Contracttext |
Parametertext_file_material | ContractRead the actual UTF-8 document and put its text in the indicated input or message content string. |
Lifecycle: synchronous_or_streamed
Tariff references do not add request options. Supported parameters are listed for the selected method.
Match each charge to the conditions shown. Use one rate for each set of alternative configurations.
| Configuration | Rate schedule | Context tokens, more than | Context tokens, up to and including | Charge |
|---|---|---|---|---|
| ConfigurationBase token rates | Rate scheduleBase rate | Context tokens, more than— | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens Output · Reasoning output tokens $0.024 / 1K tokens |
| ConfigurationRequest-length tier 1 | Rate schedule— | Context tokens, more than0 | Context tokens, up to and including200,000 | Charge Input · Input tokens $0.004 / 1K tokens Output · Output tokens $0.024 / 1K tokens Input · Cache read $0.0004 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationRequest-length tier 2 | Rate schedule— | Context tokens, more than200,000 | Context tokens, up to and includingNo upper bound | Charge Input · Input tokens $0.008 / 1K tokens Output · Output tokens $0.036 / 1K tokens Input · Cache read $0.0008 / 1K tokens Input · Cache write $0.00075 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
{\n "model": "google/gemini-3.1-pro-preview",\n "max_tokens": 128,\n "messages": [\n {\n "role": "user",\n "content": "Summarize the incident report."\n }\n ],\n "stream": false\n}set -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\n: "${AILOOT_TEXT_FILE:?Set your actual UTF-8 document}"\nexport AILOOT_TEXT_FILE\npython3 - <<'PY_REQUEST'\nimport json, os\nfrom pathlib import Path\n\nsource_file = Path(os.environ['AILOOT_TEXT_FILE'])\nif not source_file.is_file():\n raise SystemExit('Set AILOOT_TEXT_FILE to your actual UTF-8 document')\ntext = source_file.read_text(encoding='utf-8')\nif not text.strip():\n raise SystemExit('Choose a document containing text')\npayload = {'model': 'google/gemini-3.1-pro-preview', 'max_tokens': 128, 'messages': [{'role': 'user', 'content': 'Summarize the incident report.'}]}\npayload['messages'][0]['content'] = 'Summarize this material and quote supporting source passages.\\n\\n' + text\nPath('request.json').write_text(json.dumps(payload, ensure_ascii=False), encoding='utf-8')\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/messages \\\n -H "x-api-key: $AILOOT_API_KEY" -H 'anthropic-version: 2023-06-01' -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\n\nresult = json.loads(Path('result.json').read_text(encoding='utf-8'))\nprint(json.dumps(result, ensure_ascii=False, indent=2))\nPY_RESULT\nimport json, os\nfrom pathlib import Path\n\nsource_file = Path(os.environ['AILOOT_TEXT_FILE'])\nif not source_file.is_file():\n raise SystemExit('Set AILOOT_TEXT_FILE to your actual UTF-8 document')\ntext = source_file.read_text(encoding='utf-8')\nif not text.strip():\n raise SystemExit('Choose a document containing text')\npayload = {'model': 'google/gemini-3.1-pro-preview', 'max_tokens': 128, 'messages': [{'role': 'user', 'content': 'Summarize the incident report.'}]}\npayload['messages'][0]['content'] = 'Summarize this material and quote supporting source passages.\\n\\n' + text\nfrom urllib.request import Request, urlopen\nfrom urllib.error import HTTPError\n\napi_key = os.environ['AILOOT_API_KEY']\nif not api_key.strip():\n raise SystemExit('Set AILOOT_API_KEY before making a request')\nheaders = {'x-api-key': 'PLACEHOLDER_KEY', 'anthropic-version': '2023-06-01', 'Content-Type': 'application/json'}\nheaders['x-api-key'] = api_key\nrequest = Request('https://api.ailoot.ai/v1/messages', data=json.dumps(payload, ensure_ascii=False).encode('utf-8'), headers=headers, method='POST')\ntry:\n with urlopen(request, timeout=120) as response:\n raw = response.read()\n Path('response-headers.txt').write_text(str(response.headers), encoding='utf-8')\nexcept HTTPError as error:\n Path('result.json').write_bytes(error.read())\n Path('response-headers.txt').write_text(str(error.headers), encoding='utf-8')\n raise\nPath('result.json').write_bytes(raw)\nimport json\nfrom pathlib import Path\n\nresult = json.loads(Path('result.json').read_text(encoding='utf-8'))\nprint(json.dumps(result, ensure_ascii=False, indent=2))\nJSON or SSE
Keep every complete returned response, file and content part.
Keep all content blocks, thinking signatures and actual tool-use IDs. Assemble all SSE block deltas; a first text block is not the complete output.
Keep request/response IDs and headers. No generic text job retrieval URL is supplied.
| Field | Type |
|---|---|
Fieldid | Typestring |
Fieldmodel | Typestring |
Fieldcontent[] | Typetext|thinking|tool_use|other content block |
Fieldstop_reason | Typestring|null |
Fieldusage | Typeobject |
| Response | Condition | Next step |
|---|---|---|
Response400 · invalid_request_error | ConditionInvalid required fields, material representation or parameter value | Next stepCorrect the indicated fields before a new creation request. |
Ailoot gemini-3.1-pro-preview
Ailoot Ultra gemini-3.1-pro-preview, google/gemini-3.1-pro-preview~google/gemini-pro-latest
/chat/completions
google/gemini-3.1-pro-preview, ~google/gemini-pro-latest, gemini-3.1-pro-preview, gemini-3.1-pro-preview
Technical example in English
Review a cross-module date contract\n\nReview this contract mismatch. Producer emits {due_date: "2026-11-03"}; consumer reads record.dueDate and displays "No date" when missing. Existing stored records use due_date. Propose the smallest compatible correction and tests for both present and absent dates. Preserve the producer field and do not add a second stored field.A short mismatch analysis, a focused consumer patch and tests covering the stored field and missing-value behavior.Check that the patch reads due_date without changing persisted records or treating an absent date as a valid one.