Claude Opus 4.8 vs Grok 4.20

Claude Opus 4.8 against Grok 4.20
Claude Opus 4.8Grok 4.20
Coding index65.033.3
Benchmarks behind it Verified, 6 benchmarks Partial, 2 benchmarks
Output $/Mtok$25.00$2.50
Cost per solved task$2.17$0.72
Context window1M2M