Model used to generate images, e.g. gpt-image-1.5.
prompt
string
Required
A text description of the desired image. Maximum length is 1000 characters.
n
integer
Number of images to generate. Must be between 1 and 10.
size
string
Generated image size. For GPT image models, must be one of 1024x1024, 1536x1024 (landscape), 1024x1536 (portrait), or auto (default). For dall-e-2 must be one of 256x256, 512x512, or 1024x1024. For dall-e-3 must be one of 1024x1024, 1792x1024, or 1024x1792.