models

Z.ai: GLM 5.3 Flash (batch)

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Z.ai: GLM 5.3 Flash (batch)

GLM 5.3 Flash is a Z.ai multimodal model for visual development, document analysis and agentic work with text results.

About the model

This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.

A multimodal model for work

GLM 5.3 Flash combines understanding of text, images, video and files. It produces a text response and is intended for coding with visual feedback, document processing and professional tasks. The published specifications list a context window of up to one million tokens and a maximum output of 128,000 tokens.

Long-context architecture

The model contains 320 billion parameters, with 18 billion active. Hybrid attention combines sparse and linear processing, while specialized inter-layer connections help maintain stability as scale increases. Multimodal material is included in pretraining.

Visual information participates in the workflow: an assistant examines an interface or rendered result, compares it with the task and proposes corrections. This explains the manufacturer's emphasis on checking the actual visual result after writing code.

Reasoning, tools and data

Reasoning is always enabled. Depth is selected through low, high and max; a disabled mode is not provided. Reasoning history can be retained between steps during long workflows.

For a tool, the model produces a function name and arguments, the application executes the action and passes the result back. JSON is suitable for programmatic response processing: expected fields are specified through instructions, while syntax and value meaning are checked separately. Streaming allows text to be received incrementally.

Caching a repeated instruction or history helps reuse processed context. According to Z.ai, it reduces repeated processing in suitable tasks; actual reuse is determined by the result of the particular request.

Development from a visual prompt

The model can analyze multiple screenshots of one product, relationships between pages, shared components, interface states and animations. In an agentic environment with tools, it writes code, runs an application, inspects screenshots of the result and corrects mismatches. In game development, this cycle covers rules, movement, interactions, scores and ending a game session.

Documents and professional analysis

For presentations, reports and spreadsheets, the model considers content together with layout: text, images, diagrams and element placement. Through tools, it can create and check PPTX, PDF, DOCX and XLSX material. These files are application results; the model's direct response remains text.

Financial analysis includes work with reporting, checks of formula consistency and separate consideration of disclosed data, assumptions and conclusions. In the manufacturer's described workflow, data comes from the task material.

Video, three-dimensional scenes and interfaces

In an agentic environment, the model can analyze video, the temporal sequence of events, participants' visual characteristics and subtitles. Tools provide editing and saving of the result.

When working with a three-dimensional scene or drawing, it connects spatial descriptions, proportions and visible results. The tool cycle includes construction, rendering from a specified viewpoint, visual comparison and correction. Similarly, the model can analyze an application screen and help with sequential interface work.

These workflows describe model properties in an environment with the necessary tools. Accepted material is determined by the selected method; visual understanding does not mean that video or file processing, or creation of the listed artifacts, is automatically available in every request.

Ailoot Ultra · Batch POST /v1/batches z-ai/glm-5.3-flash:batch

z-ai/glm-5.3-flash:batch

Z.ai /z-ai/glm-5.3-flash:batch

Overview

GLM 5.3 Flash is a Z.ai multimodal model for visual development, document analysis and agentic work with text results.

Accepted inputs
Text
Results
Text

Available in Ailoot · inputs & methods

Ailoot Ultra · Batch POST /v1/batches
Input types
text
Output types
text
Output format
inline results[].response.body JSON
FieldTypeRequirementValues & limitsDefault
FieldendpointTypestringRequirementRequiredValues & limits
/v1/chat/completions
Default—
FieldmodelTypestringRequirementRequiredValues & limits
z-ai/glm-5.3-flash:batch
Default—
FieldrequestsTypebatch_item[]RequirementRequiredValues & limits
Minimum items: 1
Default—
Fieldrequests[].custom_idTypestringRequirementRequiredValues & limitsDefault—
Fieldrequests[].body.messagesTypemessage[]RequirementRequiredValues & limitsDefault—
Fieldcompletion_windowTypestringRequirementOptionalValues & limits
24h
Default—
FieldproviderTypeobject|nullRequirementOptionalValues & limitsDefault—
Fieldrequests[].body.modelTypestringRequirementOptionalValues & limits
z-ai/glm-5.3-flash:batch, z-ai/glm-5.3-flash
Default—
Fieldprovider.onlyTypestring[]RequirementOptionalValues & limits
deepinfra/fp4
Default—
Fieldprovider.allow_fallbacksTypeboolean|nullRequirementOptionalValues & limits
false, null
Default—
Method parameters and lifecycle
ParameterContract
Parametercontent_typeContractapplication/json
ParameterrequiredContractendpoint, model, requests
Parametermaterial_typesContracttext
ParameterrepresentationContractinline requests[]; each item has custom_id and body
Parameterrequest_endpoint_profileContract/v1/chat/completions
Parameterfile_materialContractCaller may read actual UTF-8 JSONL locally into requests[]. No upload purpose, input_file_id or file reference is used. Missing/empty customer material stops preparation before POST.
Parameterserialization_orderContractendpoint, model, provider (if supplied), completion_window (if supplied), requests last
Parameteroptional_controlsContractprovider.only, provider.allow_fallbacks, completion_window
Parameterschema_scopeContractText Chat Completions bodies in the documented inline Batch envelope.

Lifecycle: asynchronous

GET /v1/batches/{operation_id} · actual original create response.id; same user/key/group

Pricing

Tariff references do not add request options. Supported parameters are listed for the selected method.

Fast mode
Not specified When fast mode is selected
Flex mode
Not specified When flex mode is selected
Maximum reasoning effort
Not specified When maximum reasoning effort uses the default adjustment
Explicit cache pricing
Not enabled When explicit cache is requested

Ailoot rates

Prices by configuration

Match each charge to the conditions shown. Use one rate for each set of alternative configurations.

ConfigurationRate scheduleContext tokens, more thanContext tokens, up to and includingCharge
ConfigurationBase token ratesRate scheduleBase rateContext tokens, more than—Context tokens, up to and includingNo upper boundCharge
Input · Input tokens $0.00012 / 1K tokens
Output · Output tokens $0.0004 / 1K tokens
Input · Cache read $0.000024 / 1K tokens
Input · Cache write — / 1K tokens
Input · Cache write, 1 hour — / 1K tokens
ConfigurationRequest-length tier 1Rate schedule—Context tokens, more than0Context tokens, up to and includingNo upper boundCharge
Input · Input tokens $0.00012 / 1K tokens
Output · Output tokens $0.0004 / 1K tokens
Input · Cache read $0.000024 / 1K tokens
Input · Cache write — / 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 →

Example requests

Ailoot Ultra · Batch

curl · retained fixturePython HTTP · actual customer JSONLPython · save every completed result
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
python3 - <<'PY_REQUEST'
import json
from pathlib import Path
body=json.loads('{"endpoint":"/v1/chat/completions","model":"z-ai/glm-5.3-flash:batch","requests":[{"custom_id":"req-0001","body":{"messages":[{"role":"user","content":"Hello!"}],"max_tokens":16}}]}')
Path("batch-request.json").write_text(json.dumps(body,ensure_ascii=False),encoding="utf-8")
PY_REQUEST
curl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/batches \
  -H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \
  --data-binary @batch-request.json -D batch-response-headers.txt -o batch-create-response.json
import json, os
from pathlib import Path
from urllib.request import Request, urlopen

def prepare_requests(customer_path):
    path = Path(customer_path)
    if not path.is_file(): raise ValueError("Customer JSONL file is missing")
    items = [json.loads(line) for line in path.read_text(encoding="utf-8").splitlines() if line.strip()]
    if not items: raise ValueError("Customer JSONL contains no requests")
    ids = set()
    for item in items:
        if set(item) != {"custom_id", "body"}: raise ValueError("Each item needs custom_id and body")
        cid = item["custom_id"]
        if not isinstance(cid, str) or not cid.strip() or cid in ids: raise ValueError("custom_id must be nonempty and unique")
        ids.add(cid)
        if not isinstance(item["body"], dict) or not item["body"].get("messages"): raise ValueError("Supply actual text messages")
        supplied_model = item["body"].get("model")
        if supplied_model is not None and supplied_model not in ['z-ai/glm-5.3-flash:batch', 'z-ai/glm-5.3-flash']: raise ValueError("body.model must be an exact documented caller or wire ID")
    return {"endpoint":"/v1/chat/completions", "model":"z-ai/glm-5.3-flash:batch", "requests":items}

if __name__ == "__main__":
    material = os.environ.get("AILOOT_BATCH_REQUESTS_JSONL", "")
    if not material: raise SystemExit("Set AILOOT_BATCH_REQUESTS_JSONL to your actual customer file")
    body = prepare_requests(material)
    key = os.environ.get("AILOOT_API_KEY", "")
    if not key: raise SystemExit("Set AILOOT_API_KEY")
    request = Request("https://api.ailoot.ai/v1/batches", data=json.dumps(body, ensure_ascii=False).encode("utf-8"), headers={"Authorization":"Bearer " + key, "Content-Type":"application/json"}, method="POST")
    with urlopen(request) as response:
        raw = response.read()
        Path("batch-create-response.json").write_bytes(raw)
        print(raw.decode("utf-8"))
import json
from pathlib import Path
raw = Path("batch-status-response.json").read_bytes()
response = json.loads(raw)
if response.get("status") != "completed":
    raise SystemExit("Keep the original operation; read its status without resubmitting")
results = response.get("results")
if not isinstance(results, list) or not results:
    raise SystemExit("Preserve the original response; completed results are missing")
Path("batch-results.jsonl").write_text("".join(json.dumps(item, ensure_ascii=False) + "\n" for item in results), encoding="utf-8")
# Preserve batch-status-response.json with aggregate usage and every result/error.

Receive and save results

Ailoot Ultra · Batch

inline results[].response.body JSON

  • GET /v1/batches/{operation_id}
Check job status
curl · original operation status
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
BATCH_OPERATION_ID="$(python3 - <<'PY_ID'
import json
from pathlib import Path
from urllib.parse import quote
response = json.loads(Path("batch-create-response.json").read_text(encoding="utf-8"))
operation = response.get("id")
if not isinstance(operation, str) or not operation: raise SystemExit("No actual original operation ID; preserve the response and do not resubmit")
print(quote(operation, safe=""))
PY_ID
)"
curl --fail-with-body --silent --show-error "https://api.ailoot.ai/v1/batches/$BATCH_OPERATION_ID" \
  -H "Authorization: Bearer $AILOOT_API_KEY" -o batch-status-response.json
Keep all completed results

Keep every complete returned response, file and content part.

Preserve the full original status JSON, every result/custom_id and complete response or error body. Save completed results[] as JSONL without filtering.

If the original response needs checking

Preserve the original operation ID. 503 result_pending_check has X-Should-Retry:false; never resubmit an unknown original batch.

Response fields
FieldType
Fieldresults[].custom_idTypestring
Fieldresults[].response.body.choices[].message.contentTypestring|null
Fieldresults[].errorTypeobject|null
FieldusageTypeobject|null
FieldidTypestring
FieldmodelTypestring
FieldendpointTypestring
FieldstatusTypestring
Fieldrequest_countsTypeobject
Fieldresults[].idTypestring
Fieldresults[].response.status_codeTypeinteger
Fieldresults[].response.request_idTypestring
Errors and next steps
ResponseConditionNext step
Response400 · invalid_request_errorConditionInvalid documented inline envelope, duplicate keys, item identity, or configured model capabilities conflict.Next stepCorrect the indicated fields before any new submission.
Response401 · authentication_errorConditionInvalid API key.Next stepUse the authorized Ailoot key.
Response403 · permission_errorConditionBatch group unavailable.Next stepCheck key/group entitlement.
Response422 · invalid_request_errorConditionBatch uses balance billing; subscription creation is rejected.Next stepUse the authorized balance-billed group.
Response422 · price_unavailableConditionBatch input cannot be quoted.Next stepPreserve response; use documented family input.
Response402 · billing_errorConditionBatch reserve unavailable.Next stepResolve admission before a new request.
Response503 · price_unavailableConditionBatch method price/native rates unavailable.Next stepPreserve response; do not substitute prices.
Response503 · api_errorConditionExact supplier route unavailable.Next stepPreserve response for route repair.
Response503 · result_pending_checkConditionOriginal result requires checking; X-Should-Retry:false.Next stepKeep original operation_id/id and read its status; never repeat original POST.
Response404 · not_foundConditionBatch status operation absent or owned by another identity.Next stepUse exact original id and same user/key/group.

Aliases

Model aliases

Ailoot Ultra z-ai/glm-5.3-flash:batch

Method path aliases

Use the method paths shown above.

Related caller IDs

z-ai/glm-5.3-flash:batch

FAQ · Z.ai: GLM 5.3 Flash (batch)
What inputs and results are available?

POST /v1/batches · z-ai/glm-5.3-flash:batch: text → text

Which fields does the request use?

POST /v1/batches · z-ai/glm-5.3-flash:batch: endpoint, model, requests, completion_window, provider

What limits apply?

POST /v1/batches · z-ai/glm-5.3-flash:batch: requests.min_items: 1

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