> ## Documentation Index
> Fetch the complete documentation index at: https://docs.linkmodel.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# seedream-4.0
> ByteDance's multimodal image creation engine unifying text-to-image generation and editing in one architecture, supporting up to 4K output, 30+ art style switching, and multi-reference batch generation with 10x faster inference.
| | |
| --- | --- |
| **Provider** | Bytedance |
| **Tasks** | text-to-image · image-to-image |
| **Starting from** | 0.0232 USD / images · Pricing details |
## OpenAPI
````yaml /openapi/image/seedream-4-0.yaml post /image-generation
openapi: 3.0.3
info:
title: seedream-4.0
version: 1.0.0
description: >-
ByteDance's multimodal image creation engine unifying text-to-image
generation and editing in one architecture, supporting up to 4K output, 30+
art style switching, and multi-reference batch generation with 10x faster
inference.
servers:
- url: https://api.linkmodel.ai/api/v1
description: Production
security:
- bearerAuth: []
tags:
- name: Bytedance
- name: image
paths:
/image-generation:
post:
tags:
- Bytedance
- image
summary: seedream-4.0
description: >
ByteDance's multimodal image creation engine unifying text-to-image
generation and editing in one architecture, supporting up to 4K output,
30+ art style switching, and multi-reference batch generation with 10x
faster inference.
| | |
| --- | --- |
| **Provider** | Bytedance |
| **Tasks** | text-to-image · image-to-image |
| **Starting from** | 0.0232 USD / images · Pricing details |
operationId: seedream-4-0
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
model:
type: string
enum:
- seedream-4.0
description: 'Must be one of: seedream-4.0.'
prompt:
type: string
minLength: 1
description: Length must be at least 1.
images:
type: array
maxItems: 10
items:
type: string
format: url
description: Maximum 10 items.
size:
type: string
enum:
- 16x9
- 1x1
- 21x9
- 2x3
- 3x2
- 3x4
- 4x3
- 9x16
description: 'Must be one of: 16x9, 1x1, 21x9, 2x3, 3x2, 3x4, 4x3, 9x16.'
quality:
type: string
enum:
- 1K
- 2K
- 4K
description: 'Must be one of: 1K, 2K, 4K.'
max_images:
type: integer
enum:
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
default: 1
description: >-
Must be one of: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15. Defaults to `1`.
required:
- model
- prompt
responses:
'200':
description: Task accepted and queued for generation.
content:
application/json:
schema:
type: object
properties:
code:
type: integer
example: 0
data:
type: object
properties:
task_id:
type: string
format: uuid
description: Use this id to poll task status.
example: cb6111cf-e89f-4978-b8e3-aa59c21cceff
order_id:
type: string
format: uuid
description: Billing order id.
example: 019da9cf-d1db-78e1-ac23-526774d01193
status:
type: string
enum:
- processing
- succeeded
- failed
example: processing
price:
type: number
description: Charged amount in the model's pricing currency.
example: 0.074
msg:
type: string
example: success
request_id:
type: string
format: uuid
example: 250b66dd-e1fb-4bb6-b5f6-c668efadc35d
'400':
description: Bad request — invalid or missing parameter.
content:
application/json:
schema:
type: object
properties:
code:
type: integer
example: 400
msg:
type: string
example: task_id is required
request_id:
type: string
format: uuid
example: 96be7a7d-3e81-4916-a6b8-19b32773a693
'401':
description: Unauthorized — missing or invalid API key.
content:
application/json:
schema:
type: object
properties:
code:
type: integer
example: 401
data:
type: object
example: {}
msg:
type: string
example: invalid api key
request_id:
type: string
format: uuid
example: bff4c295-c7da-4507-9708-4627cb6373ba
'500':
description: Internal error — task creation failed (e.g. insufficient balance).
content:
application/json:
schema:
type: object
properties:
code:
type: integer
example: 500
msg:
type: string
example: >-
create task failed: billing: code=100601: insufficient
balance
request_id:
type: string
format: uuid
example: 3409f6fb-fa9a-4534-b530-195b5f6f4e32
components:
securitySchemes:
bearerAuth:
type: http
scheme: bearer
bearerFormat: JWT
````