Seedream4.0 - Text to Image
High-quality photorealistic image generation powered by Seedream4.0’s advanced AI model
Query Task Status
After submitting a task, use the unified query endpoint to check progress and retrieve results:Get Task Details
Learn how to query task status and retrieve generation results
For production use, we recommend using the
callBackUrl parameter to receive automatic notifications when generation completes, rather than polling the status endpoint.Related Resources
Rate limits and quotas are enforced by Apikley and may differ from upstream providers.
OpenAPI
market/seedream/seedream-v4-text-to-image.json post /api/v1/jobs/createTask
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openapi: 3.0.0
info:
title: Bytedance API
description: Apikley Bytedance API Documentation - Text to Image
version: 1.0.0
contact:
name: Technical Support
email: [email protected]
servers:
- url: https://api.apikley.ru
description: API Server
security:
- BearerAuth: []
paths:
/api/v1/jobs/createTask:
post:
summary: Generate images using bytedance/seedream-v4-text-to-image
operationId: bytedance-seedream-v4-text-to-image
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- model
properties:
model:
type: string
enum:
- bytedance/seedream-v4-text-to-image
default: bytedance/seedream-v4-text-to-image
description: >-
The model name to use for generation. Required field.
- Must be `bytedance/seedream-v4-text-to-image` for this
endpoint
example: bytedance/seedream-v4-text-to-image
callBackUrl:
type: string
format: uri
description: >-
The URL to receive generation task completion updates.
Optional but recommended for production use.
- System will POST task status and results to this URL when
generation completes
- Callback includes generated content URLs and task
information
- Your callback endpoint should accept POST requests with
JSON payload containing results
- Alternatively, use the Get Task Details endpoint to poll
task status
example: https://your-domain.com/api/callback
input:
type: object
description: Input parameters for the generation task
properties:
prompt:
description: >-
The text prompt used to generate the image (Max length:
5000 characters)
type: string
maxLength: 5000
example: >-
Draw the following system of binary linear equations and
the corresponding solution steps on the blackboard: 5x +
2y = 26; 2x -y = 5.
image_size:
description: The size of the generated image.
type: string
enum:
- square
- square_hd
- portrait_4_3
- portrait_3_2
- portrait_16_9
- landscape_4_3
- landscape_3_2
- landscape_16_9
- landscape_21_9
default: square_hd
example: square_hd
image_resolution:
description: >-
Final image resolution is determined by combining
image_size (aspect ratio) and image_resolution (pixel
scale). For example, choosing 4:3 + 4K gives 4096 ×
3072px
type: string
enum:
- 1K
- 2K
- 4K
default: 1K
example: 1K
max_images:
description: >-
Set this value (1–6) to cap how many images a single
generation run can produce in one set—because they’re
created in one shot rather than separate requests, you
must also state the exact number you want in the prompt
so both settings align. (Min: 1, Max: 6, Step: 1) (step:
1)
type: number
minimum: 1
maximum: 6
default: 1
example: 1
seed:
description: >-
Random seed to control the stochasticity of image
generation
type: integer
required:
- prompt
example:
model: bytedance/seedream-v4-text-to-image
callBackUrl: https://your-domain.com/api/callback
input:
prompt: >-
Draw the following system of binary linear equations and the
corresponding solution steps on the blackboard: 5x + 2y = 26;
2x -y = 5.
image_size: square_hd
image_resolution: 1K
max_images: 1
responses:
'200':
description: Request successful
content:
application/json:
schema:
allOf:
- $ref: '#/components/schemas/ApiResponse'
- type: object
properties:
data:
type: object
properties:
taskId:
type: string
description: >-
Task ID, can be used with Get Task Details
endpoint to query task status
example: task_bytedance_1765176547151
example:
code: 200
msg: success
data:
taskId: task_bytedance_1765176547151
'500':
$ref: '#/components/responses/Error'
components:
schemas:
ApiResponse:
type: object
properties:
code:
type: integer
enum:
- 200
- 401
- 402
- 404
- 422
- 429
- 455
- 500
- 501
- 505
description: >-
Response status code
- **200**: Success - Request has been processed successfully
- **401**: Unauthorized - Authentication credentials are missing or
invalid
- **402**: Insufficient Credits - Account does not have enough
credits to perform the operation
- **404**: Not Found - The requested resource or endpoint does not
exist
- **422**: Validation Error - The request parameters failed
validation checks
- **429**: Rate Limited - Request limit has been exceeded for this
resource
- **455**: Service Unavailable - System is currently undergoing
maintenance
- **500**: Server Error - An unexpected error occurred while
processing the request
- **501**: Generation Failed - Content generation task failed
- **505**: Feature Disabled - The requested feature is currently
disabled
msg:
type: string
description: Response message, error description when failed
example: success
responses:
Error:
description: Server Error
securitySchemes:
BearerAuth:
type: http
scheme: bearer
bearerFormat: API Key
description: >-
All APIs require authentication via Bearer Token.
Get API Key:
1. Visit [API Key Management Page](https://app.apikley.ru/keys) to get your
API Key
Usage:
Add to request header:
Authorization: Bearer APIKLEY_API_KEY
Note:
- Keep your API Key secure and do not share it with others
- If you suspect your API Key has been compromised, reset it immediately
in the management page
To find navigation and other pages in this documentation, fetch the llms.txt file at: https://docs.apikley.ru/llms.txt