Bytedance Seedance 2.5 Reference to Video 480p API | Pricing & Docs

bytedance/seedance-2.5/reference-to-video/480p

Seedance 2.5 Reference to Video 480p blends up to 9 images, 3 videos, and 3 audio references with a prompt into a 4–30-second 480p clip, with optional native audio.

1. Get started

Use RunComfy's API to run bytedance/seedance-2.5/reference-to-video/480p. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/bytedance/seedance-2.5/reference-to-video/480p \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": ""
  }'

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/bytedance/seedance-2.5/reference-to-video/480p \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": ""
  }'

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 schema",
  "required": [
    "prompt"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "Text prompt describing the desired video, referencing the provided images, video clips, and audio as environment, motion, and mood cues.",
      "type": "string",
      "examples": [
        "Using the greenhouse reference for environment and style, animate a calm cinematic walk: slow push-in down the central aisle as leaves tremble softly, dust motes drift through warm side light, glass panels softly fogging, shallow depth of field, continuous smooth motion, no text, no watermark."
      ]
    },
    "images": {
      "title": "Reference Images",
      "description": "Reference image URLs. Up to 9 images.",
      "type": "array",
      "examples": [
        [
          "https://playgrounds-storage-public.runcomfy.net/tools/7403/media-files/input-1-1.png"
        ]
      ],
      "maxItems": 9
    },
    "videos": {
      "title": "Reference Videos",
      "description": "Reference video URLs. Up to 3 clips. Each reference video must be between 2 and 30 seconds. Total duration of all reference videos must not exceed 30 seconds.",
      "type": "array",
      "maxItems": 3
    },
    "audios": {
      "title": "Reference Audio",
      "description": "Reference audio URLs. Up to 3 files. Each audio file must be between 2 and 30 seconds, and the total duration must not exceed 30 seconds.",
      "type": "array",
      "maxItems": 3
    },
    "duration": {
      "title": "Duration (seconds)",
      "description": "The duration of the generated video in seconds. Default is 5. Range is 4–30.",
      "type": "integer",
      "minimum": 4,
      "maximum": 30,
      "default": 5
    },
    "aspect_ratio": {
      "title": "Aspect Ratio (W:H)",
      "description": "Aspect ratio of the output video.",
      "type": "string",
      "enum": [
        "16:9",
        "9:16",
        "1:1",
        "4:3",
        "3:4",
        "21:9",
        "adaptive"
      ],
      "default": "16:9"
    },
    "generate_audio": {
      "title": "Generate Audio",
      "description": "When true, the model outputs video with synchronized audio (speech, SFX, music).",
      "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"
        }
      }
    }
  }
}

RunComfy

RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.

1. Get started

Use RunComfy's API to run bytedance/seedance-2.5/reference-to-video/480p. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/bytedance/seedance-2.5/reference-to-video/480p \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": ""
  }'

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/bytedance/seedance-2.5/reference-to-video/480p \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": ""
  }'

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)

5. Schema

Input schema

{
  "type": "object",
  "title": "Input schema",
  "required": [
    "prompt"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "Text prompt describing the desired video, referencing the provided images, video clips, and audio as environment, motion, and mood cues.",
      "type": "string",
      "examples": [
        "Using the greenhouse reference for environment and style, animate a calm cinematic walk: slow push-in down the central aisle as leaves tremble softly, dust motes drift through warm side light, glass panels softly fogging, shallow depth of field, continuous smooth motion, no text, no watermark."
      ]
    },
    "images": {
      "title": "Reference Images",
      "description": "Reference image URLs. Up to 9 images.",
      "type": "array",
      "examples": [
        [
          "https://playgrounds-storage-public.runcomfy.net/tools/7403/media-files/input-1-1.png"
        ]
      ],
      "maxItems": 9
    },
    "videos": {
      "title": "Reference Videos",
      "description": "Reference video URLs. Up to 3 clips. Each reference video must be between 2 and 30 seconds. Total duration of all reference videos must not exceed 30 seconds.",
      "type": "array",
      "maxItems": 3
    },
    "audios": {
      "title": "Reference Audio",
      "description": "Reference audio URLs. Up to 3 files. Each audio file must be between 2 and 30 seconds, and the total duration must not exceed 30 seconds.",
      "type": "array",
      "maxItems": 3
    },
    "duration": {
      "title": "Duration (seconds)",
      "description": "The duration of the generated video in seconds. Default is 5. Range is 4–30.",
      "type": "integer",
      "minimum": 4,
      "maximum": 30,
      "default": 5
    },
    "aspect_ratio": {
      "title": "Aspect Ratio (W:H)",
      "description": "Aspect ratio of the output video.",
      "type": "string",
      "enum": [
        "16:9",
        "9:16",
        "1:1",
        "4:3",
        "3:4",
        "21:9",
        "adaptive"
      ],
      "default": "16:9"
    },
    "generate_audio": {
      "title": "Generate Audio",
      "description": "When true, the model outputs video with synchronized audio (speech, SFX, music).",
      "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"
        }
      }
    }
  }
}

Seedance 2.5 Reference to Video 480p blends up to 9 images, 3 videos, and 3 audio references with a prompt into a 4–30-second 480p clip, with optional native audio.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema

Seedance 2.5 Reference to Video 480p blends up to 9 images, 3 videos, and 3 audio references with a prompt into a 4–30-second 480p clip, with optional native audio.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema

Seedance 2.5 Reference to Video 480p: Multi-Reference Drafts on Models and API | RunComfy

Seedance 2.5 Reference to Video 480p blends up to 9 images, 3 videos, and 3 audio references with a prompt into a 4–30-second 480p clip, with optional native audio.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema

Seedance 2.5 Reference to Video 480p: Multi-Reference Drafts on Models and API | RunComfy

Seedance 2.5 Reference to Video 480p blends up to 9 images, 3 videos, and 3 audio references with a prompt into a 4–30-second 480p clip, with optional native audio.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema