Claude Opus 4.8 vs GPT-5.1

Claude Opus 4.8 against GPT-5.1
Claude Opus 4.8GPT-5.1
Coding index65.040.4
Benchmarks behind it Verified, 6 benchmarks Verified, 3 benchmarks
Output $/Mtok$25.00$10.00
Cost per solved task$2.17$1.02
Context window1M400K