Grok 4.5 with Grok Build just ranked #
1# on the SWE-Atlas-QnA benchmark with a score of 84
That puts it level with GPT-5.6 (max) Codex and ahead of Claude Code Fable 5 (max), Opus 4.8 (max), and every other tested coding setup
Grok Build is now the most powerful harness for agentic developer workflows