Claude Fable 5.1 vs GPT-5.2

Claude Fable 5.1 against GPT-5.2
Claude Fable 5.1GPT-5.2
Coding index84.255.9
Benchmarks behind it Verified, 5 benchmarks Verified, 3 benchmarks
Output $/Mtok$50.00$14.00
Cost per solved taskNot computable$1.91
Context window1M400K