Claude Opus 4.5 vs GPT-5.2

Claude Opus 4.5 against GPT-5.2
Claude Opus 4.5GPT-5.2
Coding index44.055.9
Benchmarks behind it Verified, 3 benchmarks Verified, 3 benchmarks
Output $/Mtok$25.00$14.00
Cost per solved task$1.37$1.91
Context window200K400K