POST /v1/images/generations

Parameters

Parameter	Type	Required	Description
`model`	string	yes	Image model ID (e.g. gpt-image-2)
`prompt`	string	yes	Image description
`size`	string	no	e.g. 1024×1024

Image models are billed per call — see the model page for the price.

Request

curl https://api.onefast.ai/v1/images/generations 
  -H "Content-Type: application/json" 
  -H "Authorization: Bearer sk-your-api-key" 
  -d '{
    "model": "gpt-image-2",
    "prompt": "A red panda surfing in space",
    "size": "1024x1024"
  }'