Bytedance Seedream 5.5 Edit API | Pricing & Docs

bytedance/seedream-5.5/edit

1. Get started

Use RunComfy's API to run bytedance/seedream-5.5/edit. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/bytedance/seedream-5.5/edit \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "",
    "images": []
  }'

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/seedream-5.5/edit \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "",
    "images": []
  }'

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",
    "images"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "Say what should change and what must stay the same.",
      "type": "string",
      "examples": [
        "Change the black shearling jacket to a camel wool coat and leave the woman, cream knit, white skirt, white boots, limestone stairs, and daylight unchanged."
      ]
    },
    "images": {
      "title": "Images",
      "description": "One to ten reference images. JPEG, PNG, WebP, BMP, TIFF, GIF, HEIC, or HEIF. Each image adds $0.008.",
      "type": "array",
      "items": {
        "type": "string",
        "format": "image_uri"
      },
      "minItems": 1,
      "maxItems": 10,
      "examples": [
        [
          "https://playgrounds-storage-public.runcomfy.net/tools/7489/media-files/output-example1-4.webp"
        ]
      ],
      "validations": [
        {
          "validation_rule": "file_size_mb<",
          "validation_value": 30,
          "validation_error": "File size must be less than 30 MB."
        },
        {
          "validation_rule": "width/height>",
          "validation_value": 0.0625,
          "validation_error": "The aspect ratio range should be 1:16 to 16:1."
        },
        {
          "validation_rule": "width/height<",
          "validation_value": 16,
          "validation_error": "The aspect ratio range should be 1:16 to 16:1."
        },
        {
          "validation_rule": "width_pixels>",
          "validation_value": 14,
          "validation_error": "The uploaded image width and height must exceed 14 pixels."
        },
        {
          "validation_rule": "height_pixels>",
          "validation_value": 14,
          "validation_error": "The uploaded image height must exceed 14 pixels."
        }
      ]
    },
    "aspect_ratio": {
      "title": "Aspect Ratio (W:H)",
      "description": "auto follows the first image. Or pick one of the fifteen frames.",
      "type": "string",
      "enum": [
        "auto",
        "1:1",
        "1:2",
        "2:1",
        "1:3",
        "3:1",
        "2:3",
        "3:2",
        "3:4",
        "4:3",
        "4:5",
        "5:4",
        "9:16",
        "16:9",
        "9:21",
        "21:9"
      ],
      "default": "auto"
    },
    "resolution": {
      "title": "Resolution",
      "description": "Output tier for the edited still. 1K and 1.5K are $0.019. 2K is $0.032.",
      "type": "string",
      "enum": [
        "1K",
        "1.5K",
        "2K"
      ],
      "default": "1K"
    },
    "output_format": {
      "title": "Output Format",
      "description": "png or jpeg. A transparent background needs png.",
      "type": "string",
      "enum": [
        "png",
        "jpeg"
      ],
      "default": "png"
    },
    "background": {
      "title": "Background",
      "description": "auto, transparent, or opaque. transparent needs png.",
      "type": "string",
      "enum": [
        "auto",
        "transparent",
        "opaque"
      ],
      "default": "auto"
    }
  }
}

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/seedream-5.5/edit. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/bytedance/seedream-5.5/edit \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "",
    "images": []
  }'

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/seedream-5.5/edit \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "",
    "images": []
  }'

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",
    "images"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "Say what should change and what must stay the same.",
      "type": "string",
      "examples": [
        "Change the black shearling jacket to a camel wool coat and leave the woman, cream knit, white skirt, white boots, limestone stairs, and daylight unchanged."
      ]
    },
    "images": {
      "title": "Images",
      "description": "One to ten reference images. JPEG, PNG, WebP, BMP, TIFF, GIF, HEIC, or HEIF. Each image adds $0.008.",
      "type": "array",
      "items": {
        "type": "string",
        "format": "image_uri"
      },
      "minItems": 1,
      "maxItems": 10,
      "examples": [
        [
          "https://playgrounds-storage-public.runcomfy.net/tools/7489/media-files/output-example1-4.webp"
        ]
      ],
      "validations": [
        {
          "validation_rule": "file_size_mb<",
          "validation_value": 30,
          "validation_error": "File size must be less than 30 MB."
        },
        {
          "validation_rule": "width/height>",
          "validation_value": 0.0625,
          "validation_error": "The aspect ratio range should be 1:16 to 16:1."
        },
        {
          "validation_rule": "width/height<",
          "validation_value": 16,
          "validation_error": "The aspect ratio range should be 1:16 to 16:1."
        },
        {
          "validation_rule": "width_pixels>",
          "validation_value": 14,
          "validation_error": "The uploaded image width and height must exceed 14 pixels."
        },
        {
          "validation_rule": "height_pixels>",
          "validation_value": 14,
          "validation_error": "The uploaded image height must exceed 14 pixels."
        }
      ]
    },
    "aspect_ratio": {
      "title": "Aspect Ratio (W:H)",
      "description": "auto follows the first image. Or pick one of the fifteen frames.",
      "type": "string",
      "enum": [
        "auto",
        "1:1",
        "1:2",
        "2:1",
        "1:3",
        "3:1",
        "2:3",
        "3:2",
        "3:4",
        "4:3",
        "4:5",
        "5:4",
        "9:16",
        "16:9",
        "9:21",
        "21:9"
      ],
      "default": "auto"
    },
    "resolution": {
      "title": "Resolution",
      "description": "Output tier for the edited still. 1K and 1.5K are $0.019. 2K is $0.032.",
      "type": "string",
      "enum": [
        "1K",
        "1.5K",
        "2K"
      ],
      "default": "1K"
    },
    "output_format": {
      "title": "Output Format",
      "description": "png or jpeg. A transparent background needs png.",
      "type": "string",
      "enum": [
        "png",
        "jpeg"
      ],
      "default": "png"
    },
    "background": {
      "title": "Background",
      "description": "auto, transparent, or opaque. transparent needs png.",
      "type": "string",
      "enum": [
        "auto",
        "transparent",
        "opaque"
      ],
      "default": "auto"
    }
  }
}

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"
        }
      }
    }
  }
}

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

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

Seedream 5.5 Edit: Multi-Image Editing up to 2K on Models and API | RunComfy

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

Seedream 5.5 Edit: Multi-Image Editing up to 2K on Models and API | RunComfy

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