Claude Fable 5 vs GPT-5.5

Claude Fable 5 against GPT-5.5
Claude Fable 5GPT-5.5
Coding index79.371.3
Benchmarks behind it Verified, 6 benchmarks Verified, 5 benchmarks
Output $/Mtok$50.00$30.00
Cost per solved task$2.16$1.65
Context window1M1.05M