Use Qwen Image 3.0 Pro with Comfy Router

API Reference for qwen/qwen-image-3.0-pro, served by Comfy Router from Qwen.

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

from comfy_sdk import Comfy

# Reads COMFY_API_KEY from the environment. Each call sends a fresh
# Idempotency-Key and waits up to 10 minutes for the finished result.
with Comfy() as client:
    result = client.models.run(
        "qwen/qwen-image-3.0-pro",
        {
            # Request fields are the provider's own — see Input below.
        },
    )

print(result)

import { comfy } from "@comfyorg/sdk";

// Reads COMFY_API_KEY from the environment. Each call sends a fresh
// Idempotency-Key and waits up to 10 minutes for the finished result.
const { data } = await comfy.models.run("qwen/qwen-image-3.0-pro", {
  // Request fields are the provider's own — see Input below.
});

console.log(data);

# Request fields are the provider's own — see Input below.
curl https://api.comfy.org/v2/models/qwen/qwen-image-3.0-pro \
  -H "X-API-Key: $COMFY_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{}'

Schema

Input

Router has not published an authored input schema for this model yet: GET /v2/models/qwen/qwen-image-3.0-pro/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

string

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

string

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

object

Contains the model generation results

object[]

The list of result options

string

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

object

The message returned by the model

object[]

The message content containing the generated image information

string

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

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

string

The role of the message. Fixed as assistant

string

Unique request identifier

object

The resource usage of this call. Only returned on success

integer

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

string

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

integer

The height of the final output image in pixels

integer

The actual number of output images returned

string

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

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

The snippets above are the shortest working call. Three things are the same for every model and are documented once on the Comfy Router headers page: send an Idempotency-Key on every paid call and reuse it when you retry, expect the connection to be held up to Router’s 10 minute deadline, and keep X-Comfy-Request-Id from every response. The SDKs do all three for you; the cURL tab does none of them. On failure, X-Comfy-Error-Type names the bucket, and a 422 means the body failed the model’s schema and was never billed.

Headers

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

Quick Start

Typed error handling in Python and TypeScript, reading the 422, walking the catalog.

Limitations

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

Develop with Comfy

Deploy ComfyUI

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Comfy Router

Comfy CLI

Specifications

Use Qwen Image 3.0 Pro with Comfy Router

Quick start

Schema

Input

Output

Examples

Output

Before you ship

Headers

Quick Start

Limitations

​Quick start

​Schema

​Input

​Output

​Examples

​Output

​Before you ship

Headers

Quick Start

Limitations

Quick start

Schema

Input

Output

Examples

Output

Before you ship