The dimensions of the generated image(s). Available sizes vary by model.
The quality level of the image. 'hd' (DALL-E 3) offers enhanced detail but may cost more. Not applicable to DALL-E 2.
How many images to generate (1-10). DALL-E 3 only supports 1.
DALL-E 3 only. 'vivid' for hyper-real/dramatic, 'natural' for less hyper-real.
gpt-image-1 only. Set background transparency. 'transparent' requires PNG/WEBP format.
gpt-image-1 only. Content moderation level ('low' for less restrictive).
gpt-image-1 only. Image format (PNG, JPEG, WEBP).
Google Imagen only. The aspect ratio of the generated image.
Google Imagen only. Controls whether people can be generated in images.