Claude Sonnet 4.5 vs Grok 4.20

Claude Sonnet 4.5 against Grok 4.20
Claude Sonnet 4.5Grok 4.20
Coding index39.533.3
Benchmarks behind it Verified, 3 benchmarks Partial, 2 benchmarks
Output $/Mtok$15.00$2.50
Cost per solved task$1.16$0.72
Context window1M2M