GPT-5.1-Codex vs Grok 4.7

GPT-5.1-Codex against Grok 4.7
GPT-5.1-CodexGrok 4.7
Coding index15.366.7
Benchmarks behind it Partial, 2 benchmarks Verified, 5 benchmarks
Output $/Mtok$10.00$6.00
Cost per solved task$0.892Not computable
Context window400K500K