xAI · Model release
Grok 4.6: xAI’s August 2026 API release
Grok 4.6 was xAI's August frontier API row, with a 500K context window and published $2/$6 per-million-token rates. Grok 4.7 replaced it on 2026-09-21 at the same price.
What changed
- xAI announced Grok 4.6 GA on 2026-08-12.
- This catalog lists it separately from Grok 4.5.
- Amazon Bedrock added Grok 4.6 on 2026-08-19 (model id `xai.grok-4.6`).
- A dated CursorBench result is specific to Cursor's harness, selected effort and board version; do not read it as a general API ranking. Grok 4.7 is the newer xAI release.
Best fit
- Frontier coding in Cursor
- xAI API stacks
- Long-context agent work
What to be careful about
- Confirm live xAI list rates before volume commits.
- CursorBench is an IDE-specific board, not a general API ranking.
Dataset snapshot: Grok 4.6 is also represented in the checked comparison dataset. Prices and benchmark figures carry their own field dates.