Claude Opus 5.5 vs Grok 4.3

Claude Opus 5.5 against Grok 4.3
Claude Opus 5.5Grok 4.3
Coding index88.837.4
Benchmarks behind it Verified, 5 benchmarks Verified, 3 benchmarks
Output $/Mtok$20.00$2.50
Cost per solved taskNot computable$0.31
Context window1M1M