Claude Opus 4.5 vs GPT-5

Claude Opus 4.5 against GPT-5
Claude Opus 4.5GPT-5
Coding index44.038.8
Benchmarks behind it Verified, 3 benchmarks Verified, 3 benchmarks
Output $/Mtok$25.00$10.00
Cost per solved task$1.37$0.39
Context window200K400K