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POST
/
v1
/
images
/
generations
curl --request POST \
  --url https://toapis.com/v1/images/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "gpt-image-2",
    "prompt": "Generate a futuristic city night poster with neon lighting and cinematic composition",
    "n": 1,
    "size": "1024x1024",
    "response_format": "b64_json"
  }'

{
  "id": "task_img_abc123def456",
  "object": "generation.task",
  "model": "gpt-image-2",
  "status": "queued",
  "progress": 0,
  "created_at": 1703884800,
  "metadata": {}
}
  • Unified image generation API
  • Select the gpt-image-2 model via the model parameter
  • Supports text-to-image, single-reference, and multi-reference image generation
  • Async task management with task ID based result lookup
Important Change: For better performance and cost control, base64 image data is no longer supported in image_urls or reference_images. Please use the Upload Image API first to upload images and obtain a URL.

​
Authorizations

​
Authorization
string
required
All endpoints require Bearer Token authenticationGet your API Key from the API Key Management PageAdd to request header:
Authorization: Bearer YOUR_API_KEY

​
Body

​
model
string
default:"gpt-image-2"
required
Image generation model nameExample: "gpt-image-2"
​
prompt
string
required
Text prompt for image generationMaximum 4000 characters
​
size
string
default:"1024x1024"
Output image sizeCommon values:
  • 1024x1024
  • 1536x1024
  • 1024x1536
​
n
integer
default:1
Number of images to generateDefault: 1
​
response_format
string
default:"b64_json"
Response formatRecommended value: b64_json
​
reference_images
string[]
Reference image URLs for image-to-image generation⚠️ URL format only (base64 no longer supported)
  • Publicly accessible URLs (http:// or https://)
  • You can use the Upload Image API to upload local files and get URLs
  • Supports single-image and multi-image reference
​
image_urls
string[]
Backward-compatible reference image fieldToAPIs automatically normalizes it to reference_images

​
Response

​
id
string
Unique task identifier for status queries
​
object
string
Object type, always generation.task
​
model
string
Model name used
​
status
string
Task status
  • queued
  • in_progress
  • completed
  • failed
​
progress
integer
Task progress percentage (0-100)
​
created_at
integer
Task creation timestamp (Unix timestamp)
curl --request POST \
  --url https://toapis.com/v1/images/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "gpt-image-2",
    "prompt": "Generate a futuristic city night poster with neon lighting and cinematic composition",
    "n": 1,
    "size": "1024x1024",
    "response_format": "b64_json"
  }'

{
  "id": "task_img_abc123def456",
  "object": "generation.task",
  "model": "gpt-image-2",
  "status": "queued",
  "progress": 0,
  "created_at": 1703884800,
  "metadata": {}
}