Bytedance Seedream 5.0 Pro API | Pricing & Docs

bytedance/seedream-5.0-pro/text-to-image

Seedream 5.0 Pro generates and edits images from text and references, with precise layout, layer separation, and accurate multilingual typography for brand, product, and marketing design.

1. Get started

Use RunComfy's API to run bytedance/seedream-5.0-pro/text-to-image. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/bytedance/seedream-5.0-pro/text-to-image \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "A vibrant close-up editorial portrait featuring a model with a sharp, piercing gaze, wearing a sculptural hat. Rich color blocking, crisp focus on the eyes, and a shallow depth of field create a striking visual impact. Styled with a Vogue cover aesthetic, captured in medium format, with bold and dramatic studio lighting."
  }'

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-5.0-pro/text-to-image \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "A vibrant close-up editorial portrait featuring a model with a sharp, piercing gaze, wearing a sculptural hat. Rich color blocking, crisp focus on the eyes, and a shallow depth of field create a striking visual impact. Styled with a Vogue cover aesthetic, captured in medium format, with bold and dramatic studio lighting."
  }'

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": "The recommended length is no more than 600 English words. If the prompt is too long, the information may become scattered. The model might ignore details and only concentrate on the main points, resulting in a image with missing elements.",
      "type": "string",
      "default": "A vibrant close-up editorial portrait featuring a model with a sharp, piercing gaze, wearing a sculptural hat. Rich color blocking, crisp focus on the eyes, and a shallow depth of field create a striking visual impact. Styled with a Vogue cover aesthetic, captured in medium format, with bold and dramatic studio lighting."
    },
    "resolution": {
      "title": "Resolution",
      "description": "Choose the output resolution. Describe the aspect ratio or shape in your prompt and the model sets the final width and height. 1K is billed at $0.045 per image, 2K at $0.090.",
      "type": "string",
      "enum": [
        "1K",
        "2K"
      ],
      "default": "2K"
    },
    "output_format": {
      "title": "Output Format",
      "description": "The format of the output images. This will determine the format of the output images.",
      "type": "string",
      "enum": [
        "png",
        "jpeg"
      ],
      "default": "png"
    }
  }
}

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-5.0-pro/text-to-image. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/bytedance/seedream-5.0-pro/text-to-image \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "A vibrant close-up editorial portrait featuring a model with a sharp, piercing gaze, wearing a sculptural hat. Rich color blocking, crisp focus on the eyes, and a shallow depth of field create a striking visual impact. Styled with a Vogue cover aesthetic, captured in medium format, with bold and dramatic studio lighting."
  }'

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-5.0-pro/text-to-image \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "A vibrant close-up editorial portrait featuring a model with a sharp, piercing gaze, wearing a sculptural hat. Rich color blocking, crisp focus on the eyes, and a shallow depth of field create a striking visual impact. Styled with a Vogue cover aesthetic, captured in medium format, with bold and dramatic studio lighting."
  }'

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": "The recommended length is no more than 600 English words. If the prompt is too long, the information may become scattered. The model might ignore details and only concentrate on the main points, resulting in a image with missing elements.",
      "type": "string",
      "default": "A vibrant close-up editorial portrait featuring a model with a sharp, piercing gaze, wearing a sculptural hat. Rich color blocking, crisp focus on the eyes, and a shallow depth of field create a striking visual impact. Styled with a Vogue cover aesthetic, captured in medium format, with bold and dramatic studio lighting."
    },
    "resolution": {
      "title": "Resolution",
      "description": "Choose the output resolution. Describe the aspect ratio or shape in your prompt and the model sets the final width and height. 1K is billed at $0.045 per image, 2K at $0.090.",
      "type": "string",
      "enum": [
        "1K",
        "2K"
      ],
      "default": "2K"
    },
    "output_format": {
      "title": "Output Format",
      "description": "The format of the output images. This will determine the format of the output images.",
      "type": "string",
      "enum": [
        "png",
        "jpeg"
      ],
      "default": "png"
    }
  }
}

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"
        }
      }
    }
  }
}

Seedream 5.0 Pro generates and edits images from text and references, with precise layout, layer separation, and accurate multilingual typography for brand, product, and marketing design.

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 5.0 Pro generates and edits images from text and references, with precise layout, layer separation, and accurate multilingual typography for brand, product, and marketing design.

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 5.0 Pro: Text-to-Image and Image Editing on Models and API | RunComfy

Seedream 5.0 Pro generates and edits images from text and references, with precise layout, layer separation, and accurate multilingual typography for brand, product, and marketing design.

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 5.0 Pro: Text-to-Image and Image Editing on Models and API | RunComfy

Seedream 5.0 Pro generates and edits images from text and references, with precise layout, layer separation, and accurate multilingual typography for brand, product, and marketing design.

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