Seedream 5.0

ByteDance Seedream 5.0 image generation, 2K/3K resolution, web search and output format options

Endpoints

Method	Endpoint	Description
POST	`/api/v1/generateTask/seedream-5-0`	Create generation task
GET	`/api/v1/statusTask/seedream-5-0`	Query task status

Authentication

All requests require an API Key in the header:

Authorization: Bearer YOUR_API_KEY

Request Body

{
  "request_type": "async",
  "callback_url": "https://...",
  "provider": "auto",
  "input": {
    "mode": "text-to-image",
    "prompt": "...",
    "max_images": 4,
    "resolution": "2K",
    "aspect_ratio": "16:9",
    "sequential_image_generation": "disabled",
    "web_search": false,
    "output_format": "jpeg",
    "image_urls": ["..."]
  }
}

Parameters

Parameter

Required

Default

Description

request_typestring

—

async

async (polling) or callback (webhook)

callback_urlstring

✱

—

Callback URL, required when request_type=callback

providerstring

—

auto

Routing strategy: auto, value, or official

inputobject

✓

—

Model input parameters

Mode Options:

text-to-image — Generate from text description
image-to-image — Generate with reference images

Sequential Image Generation:

disabled — Generate independent images, no relation between them
auto — Intelligently generate sequential images based on max_images, with continuity and coherence

Example

Text-to-Image

curl -X POST "https://api.apixo.ai/api/v1/generateTask/seedream-5-0" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "request_type": "async",
    "provider": "value",
    "input": {
      "mode": "text-to-image",
      "prompt": "a cozy cyberpunk cafe with neon lights, ultra detailed",
      "max_images": 4,
      "resolution": "2K",
      "aspect_ratio": "16:9",
      "sequential_image_generation": "disabled",
      "output_format": "jpeg"
    }
  }'

Image-to-Image (Multiple References)

curl -X POST "https://api.apixo.ai/api/v1/generateTask/seedream-5-0" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "request_type": "async",
    "provider": "official",
    "input": {
      "mode": "image-to-image",
      "prompt": "make this scene look like sunrise with warm colors",
      "max_images": 3,
      "resolution": "3K",
      "aspect_ratio": "3:4",
      "sequential_image_generation": "auto",
      "output_format": "png",
      "image_urls": [
        "https://example.com/ref1.jpg",
        "https://example.com/ref2.jpg"
      ]
    }
  }'

Web Search Enabled

curl -X POST "https://api.apixo.ai/api/v1/generateTask/seedream-5-0" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "request_type": "async",
    "provider": "value",
    "input": {
      "mode": "text-to-image",
      "prompt": "latest flagship smartphone design trends 2024",
      "max_images": 1,
      "resolution": "2K",
      "web_search": true,
      "output_format": "jpeg"
    }
  }'

Response

POST /api/v1/generateTask/seedream-5-0

Returns taskId on success for subsequent status queries.

Success:

{
  "code": 200,
  "message": "success",
  "data": {
    "taskId": "task_12345678"
  }
}

Error:

{
  "code": 400,
  "message": "Insufficient credits",
  "data": null
}

GET /api/v1/statusTask/seedream-5-0

Query task execution status and results via taskId.

curl -X GET "https://api.apixo.ai/api/v1/statusTask/seedream-5-0?taskId=task_12345678" \
  -H "Authorization: Bearer YOUR_API_KEY"

Success:

{
  "code": 200,
  "message": "success",
  "data": {
    "taskId": "task_12345678",
    "state": "success",
    "resultJson": "{\"resultUrls\":[\"https://r2.apixo.ai/img1.png\",\"https://r2.apixo.ai/img2.png\"]}",
    "createTime": 1767965610929,
    "completeTime": 1767965652317,
    "costTime": 41388
  }
}

Failed:

{
  "code": 200,
  "message": "success",
  "data": {
    "taskId": "task_12345678",
    "state": "failed",
    "failCode": "CONTENT_VIOLATION",
    "failMsg": "Content does not meet safety guidelines",
    "createTime": 1767965610929,
    "completeTime": 1767965652317,
    "costTime": 41388
  }
}

Status Response Fields

Field	Type	Description
`taskId`	string	Unique task identifier
`state`	string	`pending` `processing` `success` `failed`
`resultJson`	string	JSON containing `resultUrls` array (on success)
`failCode`	string	Error code (on failure)
`failMsg`	string	Error message (on failure)
`createTime`	integer	Task creation timestamp (ms)
`completeTime`	integer	Task completion timestamp (ms)
`costTime`	integer	Processing duration (ms)

Error Codes

Code	Description
400	Invalid parameters or request error
401	Invalid or missing API Key
429	Rate limit exceeded

Fail Code	Description
`CONTENT_VIOLATION`	Content violates safety guidelines
`INVALID_IMAGE_URL`	Cannot access provided image URL

Rate Limits

Limit	Value
Requests	60 / minute
Concurrent tasks	10

Exceeding limits returns 429 error. Wait and retry.

Tips

Generation time:
- 2K resolution: ~25-35 seconds
- 3K resolution: ~35-50 seconds
- Submit task, wait 20 seconds, then poll every 3 seconds
Callback mode: For high-concurrency or high-resolution generation, use callback mode.
Image expiration: Result URLs are valid for 15 days. Download and store important outputs promptly.
Content moderation: Prompts must comply with content safety guidelines. Violations return CONTENT_VIOLATION.
Resolution selection: Seedream 5.0 supports 2K and 3K. Balance speed and quality based on your needs.
Web search: Set web_search: true to enable real-time web search, ideal for prompts referencing trending topics, latest products, or current events.
Output format: output_format supports jpeg (default) and png. Choose based on downstream requirements.
Batch generation: max_images supports 1-10 images. Billed per image actually generated.
Sequential images:
- disabled: Generate independent images, no relation
- auto: Intelligently generate sequential images with continuity and coherence
Multiple reference fusion:
- image-to-image mode supports up to 14 reference images
- Model intelligently combines style, composition, and color
Aspect ratio suggestions:
- 16:9 / 21:9: Landscape, for banners and desktop wallpapers
- 9:16: Portrait, for mobile wallpapers and short video covers
- 1:1: Square, for social media
Image formats: image_urls supports JPG, PNG, WebP, and GIF, max 10MB per image.

Seedream 5.0

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