curl --request POST \
--url https://api.poyo.ai/api/generate/submit \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "seedream-4",
"callback_url": "https://your-domain.com/callback",
"input": {
"prompt": "A minimalist product photo of a ceramic mug on a clean studio background",
"size": "1:1",
"resolution": "1K",
"n": 1
}
}
'{
"code": 200,
"data": {
"task_id": "task-unified-1757165031-uyujaw3d",
"status": "not_started",
"created_time": "2025-11-12T10:30:00"
}
}{
"code": 400,
"error": {
"message": "Invalid request parameters",
"type": "invalid_request_error"
}
}{
"code": 401,
"error": {
"message": "Unauthorized - Invalid API key",
"type": "authentication_error"
}
}Seedream
Seedream-4 Image Generation
Image generation model powered by ByteDance Seedream-4 with support for text-to-image and image editing
POST
/
api
/
generate
/
submit
curl --request POST \
--url https://api.poyo.ai/api/generate/submit \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "seedream-4",
"callback_url": "https://your-domain.com/callback",
"input": {
"prompt": "A minimalist product photo of a ceramic mug on a clean studio background",
"size": "1:1",
"resolution": "1K",
"n": 1
}
}
'{
"code": 200,
"data": {
"task_id": "task-unified-1757165031-uyujaw3d",
"status": "not_started",
"created_time": "2025-11-12T10:30:00"
}
}{
"code": 400,
"error": {
"message": "Invalid request parameters",
"type": "invalid_request_error"
}
}{
"code": 401,
"error": {
"message": "Unauthorized - Invalid API key",
"type": "authentication_error"
}
}- After submission, a
task_idwill be returned. If you provided acallback_url, when the task status becomesfinishedorfailed, a POST request will be sent to thecallback_url. - Regardless of whether
callback_urlis provided, you can retrieve the response result through the unified Query Task Status endpoint.
Seedream-4 Image Generation
Seedream-4 is powered by ByteDance Seedream-4. It supports both text-to-image generation and image editing through the same unified submit endpoint.Available Models
- seedream-4 - Text-to-image generation, optionally with reference images
- seedream-4-edit - Image editing mode.
image_urlsis required
Notes
sizemaps to aspect ratio and supports1:1,3:4,4:3,16:9,9:16,3:2,2:3,21:9resolutionsupports1K,2K,4K, with default2Knsupports1-15- The total of
image_urlsplusnmust not exceed15 - Credits are pre-deducted as
base credits * n. If fewer images are returned than requested, the unused portion is refunded automatically
Authorizations
All API endpoints require Bearer Token authentication
Get your API Key:
Visit the API Key Management Page to get your API Key
Add it to the request header:
Authorization: Bearer YOUR_API_KEY
Body
application/json