Claude Sonnet 4.6 vs GPT-5.1

Claude Sonnet 4.6 against GPT-5.1
Claude Sonnet 4.6GPT-5.1
Coding index57.340.4
Benchmarks behind it Verified, 5 benchmarks Verified, 3 benchmarks
Output $/Mtok$15.00$10.00
Cost per solved task$1.68$1.02
Context window1M400K