GPT-5.2 vs Grok 4.7

GPT-5.2 against Grok 4.7
GPT-5.2Grok 4.7
Coding index55.966.7
Benchmarks behind it Verified, 3 benchmarks Verified, 5 benchmarks
Output $/Mtok$14.00$6.00
Cost per solved task$1.91Not computable
Context window400K500K