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RunComfy

Qwen Image Free: AI Text-to-Image Generation Tool

qwen/qwen-image/text-to-image

Precision image generation with superior multilingual text rendering, consistent editing, and strong prompt adherence across layouts, typography, and complex visual compositions.

1. Get started

Use RunComfy's API to run qwen/qwen-image/text-to-image. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/qwen/qwen-image/text-to-image \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "Minimalist poster design reading Quiet Courage in elegant serif, centered layout, soft beige background, subtle paper grain, high legibility"
  }'

2. Authentication

Set the YOUR_API_TOKEN environment variable with your API key (manage keys in your Profile) and include it on every request as a Bearer token via the Authorization header: Authorization: Bearer $YOUR_API_TOKEN.

3. API reference

Submit a request

Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/qwen/qwen-image/text-to-image \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "Minimalist poster design reading Quiet Courage in elegant serif, centered layout, soft beige background, subtle paper grain, high legibility"
  }'

Monitor request status

Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
  --header "Authorization: Bearer <token>"

Retrieve request results

Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
  --header "Authorization: Bearer <token>"

Cancel a request

Cancel a queued job by request_id, in-progress jobs cannot be cancelled.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
  --header "Authorization: Bearer <token>"

4. File inputs

Hosted file (URL)

Provide a publicly reachable HTTPS URL. Ensure the host allows server‑side fetches (no login/cookies required) and isn't rate‑limited or blocking bots. Recommended limits: images ≤ 50 MB (~4K), videos ≤ 100 MB (~2–5 min @ 720p). Prefer stable or pre‑signed URLs for private assets.

5. Schema

Input schema

{
  "type": "object",
  "title": "Input",
  "required": [
    "prompt"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "The prompt should be less than 800 characters to get better results.",
      "type": "string",
      "default": "Minimalist poster design reading Quiet Courage in elegant serif, centered layout, soft beige background, subtle paper grain, high legibility"
    },
    "resolution": {
      "title": "Resolution",
      "description": "",
      "type": "string",
      "enum": [
        "1664x928 (16:9)",
        "1472x1140 (4:3)",
        "1328x1328 (1:1)",
        "1140x1472 (3:4)",
        "928x1664 (9:16)"
      ],
      "default": "1328x1328 (1:1)"
    },
    "negative_prompt": {
      "title": "Negative Prompt",
      "description": "",
      "type": "string",
      "default": ""
    },
    "enable_prompt_expansion": {
      "title": "Magic Prompt",
      "description": "",
      "type": "boolean",
      "default": true
    }
  }
}

Output schema

{
  "output": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "format": "uri",
        "description": "single image URL"
      },
      "video": {
        "type": "string",
        "format": "uri",
        "description": "single video URL"
      },
      "images": {
        "type": "array",
        "description": "multiple image URLs",
        "items": { "type": "string", "format": "uri" }
      },
      "videos": {
        "type": "array",
        "description": "multiple video URLs",
        "items": { "type": "string", "format": "uri" }
      }
    }
  }
}