Composer 2.5, announced by xAI on 2026-06-01 and now live in Grok Build, is promoted as an "insanely fast, highly intelligent" model that excels at long-running tasks and complex instructions. The post asserts it competes with Claude Opus 4.7 on intelligence while running significantly faster and includes a demo video urging users to try it.
Composer 2.5 is now available inside Grok Build (xAI announcement dated 2026-06-01) and is described as "insanely fast" and "highly intelligent".
Composer 2.5 is now available inside Grok Build and it's insanely fast and highly intelligent
It directly competes with Claude Opus 4.7 in intelligence while being ridiculously faster
Now live in Grok Build.... Just try it
xAI (@xai)
Composer 2.5 is now available inside Grok Build.
Composer 2.5 is a fast, highly intelligent model that excels on long-running tasks and following complex instructions.
Video
— https://nitter.net/xai/status/2061510464325206163#m