GPT-5.2-Codex vs Grok 4.7

GPT-5.2-Codex against Grok 4.7
GPT-5.2-CodexGrok 4.7
Coding index45.466.7
Benchmarks behind it Verified, 3 benchmarks Verified, 5 benchmarks
Output $/Mtok$14.00$6.00
Cost per solved task$0.43Not computable
Context window400K500K