x_ai: Add support for Grok 4 Fast (#39492)
This PR adds support for Grok 4 Fast.
Release Notes:
- Added support for Grok 4 Fast models.
Co-authored-by: David Kleingeld <davidsk@zed.dev>
4443f61c16Marshall Bowers committed on 10/3/2025, 8:00:09 PM· committed by GitHubparentf0f0beb