Claude Opus 4.8 vs GPT-5.4

Claude Opus 4.8 against GPT-5.4
Claude Opus 4.8GPT-5.4
Coding index65.064.4
Benchmarks behind it Verified, 6 benchmarks Verified, 3 benchmarks
Output $/Mtok$25.00$15.00
Cost per solved task$2.17$1.02
Context window1M1.05M