xAI's image API gets an "auto" quality default, five reference images and two new aspect ratios

According to xAI's API release notes, the quality parameter on grok-imagine-image-2.0 now accepts auto, and auto is the default when quality is omitted (it was medium). Auto currently uses low quality for image generation and medium for image editing. Images are billed at the quality they are served at, so requests that relied on the old medium default for generation are now served and billed at low. Developers who want a fixed quality can pass low or medium explicitly.

Image editing now accepts up to 5 source images per request, up from 3. Image generation and editing also accept two new aspect ratios: 21:9 (cinematic widescreen) and 5:2 (wide banners).