Claude Sonnet 4.5 vs GPT-5

Claude Sonnet 4.5 against GPT-5
Claude Sonnet 4.5GPT-5
Coding index39.538.8
Benchmarks behind it Verified, 3 benchmarks Verified, 3 benchmarks
Output $/Mtok$15.00$10.00
Cost per solved task$1.16$0.39
Context window1M400K