qwen/qwen3-4b-fp8
Qwen/Qwen3-4B-FP8 is an FP8 edition of Qwen3-4B, a compact text model profile for instruction-driven language tasks.
- Ailoot Ultra · OpenAI Chat
POST /v1/chat/completionsqwen/qwen3-4b-fp8 - Ailoot Ultra · Anthropic Messages
POST /v1/messagesqwen/qwen3-4b-fp8
About the model
This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.
This listing identifies an FP8 edition of Qwen3-4B. FP8 names a quantized model representation, and the edition is distinct from a standard-precision Qwen3-4B listing. Qwen’s matching maker checkpoint is a 4-billion-parameter text model whose published scope includes instruction following, dialogue and reasoning.
Prepare a bounded language task
Provide the text and a clear output target, such as an explanation, a short draft or a comparison against supplied criteria. Include the relevant facts and the intended audience. Keep examples close to the task when a particular style or distinction matters.
Evaluate the named edition
Use the same source material and review criteria when comparing outputs. Check factual consistency, instruction following and the completeness of the delivered answer. Retain the FP8 edition name and selected serving profile with the evaluation.
The maker documents thinking and non-thinking behavior for its checkpoint. Which controls and context allowance a hosted edition exposes depend on that serving profile; this listing remains distinct from the maker’s direct checkpoint.
Through Ailoot, select this exact model ID in /v1/chat/completions and supply the task in messages. Each message carries a role and its content; keep the relevant instruction and source material together. Collect the complete JSON response or all SSE segments when stream is enabled, and retain usage with the written result.
Ailoot Ultra · OpenAI Chat POST /v1/chat/completions qwen/qwen3-4b-fp8
qwen/qwen3-4b-fp8Overview
Qwen/Qwen3-4B-FP8 is an FP8 edition of Qwen3-4B, a compact text model profile for instruction-driven language tasks.
- Accepted inputs
- Text · Images
- Results
- Text
Available in Ailoot · inputs & methods
Ailoot Ultra · OpenAI Chat POST /v1/chat/completions
- Input types
text,image- Output types
text- Output format
- JSON or SSE
| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldmodel | Typestring | RequirementRequired | Values & limits qwen/qwen3-4b-fp8 Conditions: Use this exact Ailoot routing selector. | Default— |
Fieldmessages | Typearray | RequirementRequired | Values & limits Conditions: | Default— |
Fieldstream | Typeboolean | RequirementOptional | Values & limits Conditions: | Defaultfalse |
Input material combinations
text_input · Required: messages
image_with_text · Required: messages with actual image content blocks
Method parameters and lifecycle
| Parameter | Contract |
|---|---|
Parametercontent_type | Contractapplication/json |
Parameterrequired | Contractmodel, messages |
Parameteroptional | Contractstream |
Parametermaterial_types | Contracttext, image |
Parameterconditions | ContractUse this exact Ailoot routing selector., Image content is carried by this protocol where the exact selected model supports vision. Protocol admission does not establish image capability for every model. |
Method aliases: /chat/completions
Lifecycle: synchronous_or_streamed
Pricing
Tariff references do not add request options. Supported parameters are listed for the selected method.
- Fast mode
- Standard rate When fast mode is selected
- Flex mode
- Standard rate When flex mode is selected
- Maximum reasoning effort
- Standard rate When maximum reasoning effort uses the default adjustment
- Explicit cache pricing
- Not enabled When explicit cache is requested
- Text-only zero rates
- Cache, tools and media follow their separately listed pricing conditions. For text-only input and output
Ailoot rates
Prices by configuration
| Configuration | Rate schedule | Charge |
|---|---|---|
| ConfigurationBase token rates | Rate scheduleBase rate | Charge Input · Input tokens $0 / 1K tokens Output · Output tokens $0 / 1K tokens Input · Cache read $0 / 1K tokens Input · Cache write $0 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
Example requests
Ailoot Ultra · OpenAI Chat
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
export AILOOT_API_KEY
python3 - <<'PY_REQUEST'
import json,os
from pathlib import Path
p=json.loads('{"model": "qwen/qwen3-4b-fp8", "messages": [{"role": "user", "content": "Explain how a rainbow forms."}]}')
Path("request.json").write_text(json.dumps(p,ensure_ascii=False))
PY_REQUEST
curl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/chat/completions \
-H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \
--data-binary @request.json -D response-headers.txt -o result.json
# Submit once. Retain the complete result, original identifiers and every response header.
Receive and save results
Ailoot Ultra · OpenAI Chat
JSON or SSE
Keep all completed results
Keep every complete returned response, file and content part.
Retain every content block, tool-call ID, thinking signature when returned, all SSE deltas and complete usage. A first text fragment is not the whole result.
If the original response needs checking
Keep the original X-Client-Request-ID, response and headers. An unknown or result_pending_check outcome does not authorize a second creation.
Response fields
| Field | Type |
|---|---|
Fieldchoices[] | Typeobject |
Fieldusage | Typeobject |
Errors and next steps
| Response | Condition | Next step |
|---|---|---|
Response400 · invalid_request_error | ConditionA required field, model selector, type or input representation is invalid. | Next stepInspect the returned validation detail before preparing a separate request. |
Response | ConditionThe original request or result is unknown or requires a check. | Next stepKeep original identifiers and headers; read only supported status/library records. Do not submit creation again. |
Aliases
Model aliases
Ailoot Ultra qwen/qwen3-4b-fp8
Method path aliases
/chat/completions
Related caller IDs
Ailoot Ultra · Anthropic Messages POST /v1/messages qwen/qwen3-4b-fp8
qwen/qwen3-4b-fp8Overview
Qwen/Qwen3-4B-FP8 is an FP8 edition of Qwen3-4B, a compact text model profile for instruction-driven language tasks.
- Accepted inputs
- Text · Images
- Results
- json · sse
Available in Ailoot · inputs & methods
Ailoot Ultra · Anthropic Messages POST /v1/messages
- Input types
text,image- Output types
json,sse- Output format
- JSON or SSE
| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldmodel | Typestring | RequirementRequired | Values & limits qwen/qwen3-4b-fp8 Conditions: Use this exact Ailoot routing selector. | Default— |
Fieldmessages | Typearray | RequirementRequired | Values & limits Conditions: | Default— |
Fieldstream | Typeboolean | RequirementOptional | Values & limits Conditions: | Defaultfalse |
Fieldmax_tokens | Typeinteger | RequirementRequired | Values & limits Minimum: 1 Conditions: | Default— |
Input material combinations
text_input · Required: messages
image_with_text · Required: messages with actual image content blocks
Method parameters and lifecycle
| Parameter | Contract |
|---|---|
Parametercontent_type | Contractapplication/json |
Parameterrequired | Contractmodel, messages, max_tokens |
Parameteroptional | Contractstream |
Parametermaterial_types | Contracttext, image |
Parameterconditions | ContractUse this exact Ailoot routing selector., Image content is carried by this protocol where the exact selected model supports vision. Protocol admission does not establish image capability for every model. |
Lifecycle: synchronous_or_streamed
Pricing
Tariff references do not add request options. Supported parameters are listed for the selected method.
- Fast mode
- Standard rate When fast mode is selected
- Flex mode
- Standard rate When flex mode is selected
- Maximum reasoning effort
- Standard rate When maximum reasoning effort uses the default adjustment
- Explicit cache pricing
- Not enabled When explicit cache is requested
- Text-only zero rates
- Cache, tools and media follow their separately listed pricing conditions. For text-only input and output
Ailoot rates
Prices by configuration
| Configuration | Rate schedule | Charge |
|---|---|---|
| ConfigurationBase token rates | Rate scheduleBase rate | Charge Input · Input tokens $0 / 1K tokens Output · Output tokens $0 / 1K tokens Input · Cache read $0 / 1K tokens Input · Cache write $0 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
Example requests
Ailoot Ultra · Anthropic Messages
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
export AILOOT_API_KEY
python3 - <<'PY_REQUEST'
import json,os
from pathlib import Path
p=json.loads('{"model": "qwen/qwen3-4b-fp8", "messages": [{"role": "user", "content": "Explain how a rainbow forms."}], "max_tokens": 256}')
Path("request.json").write_text(json.dumps(p,ensure_ascii=False))
PY_REQUEST
curl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/messages \
-H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \
--data-binary @request.json -D response-headers.txt -o result.json
# Submit once. Retain the complete result, original identifiers and every response header.
Receive and save results
Ailoot Ultra · Anthropic Messages
JSON or SSE
Keep all completed results
Keep every complete returned response, file and content part.
Retain every content block, tool-call ID, thinking signature when returned, all SSE deltas and complete usage. A first text fragment is not the whole result.
If the original response needs checking
Keep the original X-Client-Request-ID, response and headers. An unknown or result_pending_check outcome does not authorize a second creation.
Response fields
| Field | Type |
|---|---|
Fieldcontent[] | Typeobject |
Fieldusage | Typeobject |
Errors and next steps
| Response | Condition | Next step |
|---|---|---|
Response400 · invalid_request_error | ConditionA required field, model selector, type or input representation is invalid. | Next stepInspect the returned validation detail before preparing a separate request. |
Response | ConditionThe original request or result is unknown or requires a check. | Next stepKeep original identifiers and headers; read only supported status/library records. Do not submit creation again. |
Aliases
Model aliases
Ailoot Ultra qwen/qwen3-4b-fp8
Method path aliases
/chat/completions
Related caller IDs
FAQ · qwen/qwen3-4b-fp8
- What inputs and results are available?
POST /v1/chat/completions·qwen/qwen3-4b-fp8:text,image→textPOST /v1/messages·qwen/qwen3-4b-fp8:text,image→json,sse- Which fields does the request use?
POST /v1/chat/completions·qwen/qwen3-4b-fp8:model,messages,streamPOST /v1/messages·qwen/qwen3-4b-fp8:model,messages,stream,max_tokens- What limits apply?
POST /v1/messages·qwen/qwen3-4b-fp8:max_tokens.minimum:1