Use Qwen Image 3.0 with Comfy Router

Call qwen/qwen-image-3.0 through Comfy Router: endpoint, request shape and the response Router returns.

Use qwen/qwen-image-3.0 with the Comfy Router API. Qwen provides the model; Router gives it the shared authentication and request route below.

Quick start

Create a key at platform.comfy.org/profile/api-keys and export it as COMFY_API_KEY. The Python and TypeScript snippets use the Comfy SDKs (pip install comfy-sdk, npm install @comfyorg/sdk); the cURL snippet is the same call over raw HTTP.

Model ID: qwen/qwen-image-3.0

Endpoint: POST https://api.comfy.org/v2/models/qwen/qwen-image-3.0

Python

import uuid
from comfy_sdk import Comfy

# Reads COMFY_API_KEY from the environment. Save this key and reuse it if you
# retry this request after the SDK returns an error.
idempotency_key = str(uuid.uuid4())
with Comfy() as client:
    result = client.models.run(
        "qwen/qwen-image-3.0",
        {
            # Request fields are the provider's own — see Input below.
        },
        idempotency_key=idempotency_key,
    )

print(result)

Schema

Input

Router has not published an authored input schema for this model yet: GET /v2/models/qwen/qwen-image-3.0/openapi.json returns an open object with x-comfy-input-schema-authored: false. Router forwards the body to Qwen unchanged, so Qwen’s own API documentation is authoritative for the request fields, and nothing is validated server side.

Output

code · string

The error code for the failed request (not returned if request is successful)

message · string

Detailed information about the failed request (not returned if request is successful)

output · object

Contains the model generation results

output.choices · object[]

The list of result options

output.choices[].finish_reason · string

The reason why the task stopped. The value is stop when the task completes normally

output.choices[].message · object

The message returned by the model

output.choices[].message.content · object[]

The message content containing the generated image information

output.choices[].message.content[].image · string

The URL of the generated image in PNG format. The link is valid for 24 hours

output.choices[].message.content[].text · string

A textual element returned in place of an image. An element carrying only this field produced NO asset, so a caller keys completion off image rather than off the presence of a content element

output.choices[].message.role · string

The role of the message. Fixed as assistant

request_id · string

Unique request identifier

usage · object

The resource usage of this call. Only returned on success

usage.input_image_count · integer

The number of input images in the request. Returns 0 for text-to-image

usage.input_image_type · string

The input image billing tier, qima_input_1k or qima_input_2k, determined by the output resolution pixel area

usage.output_height · integer

The height of the final output image in pixels

usage.output_image_count · integer

The actual number of output images returned

usage.output_image_type · string

The output image billing tier, qima_output_1k or qima_output_2k, determined by the output resolution pixel area

usage.output_width · integer

The width of the final output image in pixels

Examples

Output

{
  "output": {
    "choices": [
      {
        "finish_reason": "stop",
        "message": {
          "content": [
            {
              "image": "https://example.invalid/qwen/generated.png"
            }
          ],
          "role": "assistant"
        }
      }
    ]
  },
  "request_id": "9f2c1b3a-5d4e-4a67-8b90-1c2d3e4f5a6b",
  "usage": {
    "input_image_count": 0,
    "output_height": 512,
    "output_image_count": 1,
    "output_image_type": "qima_output_1k",
    "output_width": 512
  }
}

Before you ship

Save one Idempotency-Key for each call and reuse it for retries. Router can hold the connection for up to 10 minutes. The SDKs handle authentication; raw HTTP clients send the headers themselves.

Use X-Comfy-Error-Type to classify a failure. A 422 means Router rejected the input before calling the provider. Download generated assets promptly because result URLs can expire.

Headers

Authentication, idempotency, request IDs, error buckets, retry pacing, spend limits.

Using the Router API

Find models, inspect schemas, and retry safely.

Limitations

What Router does not do today, and what to use instead.