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RunComfy

Wan 2.1 AI Video Generator | Text to Video

wan-ai/wan-2-1/text-to-video

Generate cinematic sequences with complex motion, physics realism, adjustable frames, frame rate, aspect ratios, and guided prompt expansion for vivid storytelling.

1. Get started

Use RunComfy's API to run wan-ai/wan-2-1/text-to-video. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/wan-ai/wan-2-1/text-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "A haunting title sequence with distressed, flickering typewriter-style text forming the words 'THEY ARE WATCHING' on a textured, grainy black background. The letters jitter as they appear, as if typed by an unseen force. Ink stains and scratches flash momentarily before fading away. The eerie, flickering glow of an old fluorescent bulb casts shadows across the scene. The sound of faint typewriter clicks and distant whispers adds to the unsettling atmosphere, evoking a sense of mystery and unease."
  }'

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/wan-ai/wan-2-1/text-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "A haunting title sequence with distressed, flickering typewriter-style text forming the words 'THEY ARE WATCHING' on a textured, grainy black background. The letters jitter as they appear, as if typed by an unseen force. Ink stains and scratches flash momentarily before fading away. The eerie, flickering glow of an old fluorescent bulb casts shadows across the scene. The sound of faint typewriter clicks and distant whispers adds to the unsettling atmosphere, evoking a sense of mystery and unease."
  }'

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": "",
      "type": "string",
      "default": "A haunting title sequence with distressed, flickering typewriter-style text forming the words 'THEY ARE WATCHING' on a textured, grainy black background. The letters jitter as they appear, as if typed by an unseen force. Ink stains and scratches flash momentarily before fading away. The eerie, flickering glow of an old fluorescent bulb casts shadows across the scene. The sound of faint typewriter clicks and distant whispers adds to the unsettling atmosphere, evoking a sense of mystery and unease."
    },
    "seed": {
      "title": "Seed",
      "description": "",
      "type": "integer",
      "default": 29733570
    },
    "num_frames": {
      "title": "Number of Frames",
      "description": "",
      "type": "integer",
      "enum": [
        81,
        85,
        89,
        93,
        97
      ],
      "default": 81
    },
    "frames_per_second": {
      "title": "Frame Rate",
      "description": "Frame rate must be between 5 and 24 FPS.",
      "type": "integer",
      "maximum": 24,
      "minimum": 5,
      "default": 16
    },
    "resolution": {
      "title": "Resolution",
      "description": "",
      "type": "string",
      "enum": [
        "480p",
        "580p",
        "720p"
      ],
      "default": "720p"
    },
    "aspect_ratio": {
      "title": "Aspect Ratio (W:H)",
      "description": "",
      "type": "string",
      "enum": [
        "16:9",
        "9:16"
      ],
      "default": "16:9"
    },
    "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" }
      }
    }
  }
}