Claude Fable 5.1 vs GPT-5.6 Luna

Claude Fable 5.1 against GPT-5.6 Luna
Claude Fable 5.1GPT-5.6 Luna
Coding index84.258.0
Benchmarks behind it Verified, 5 benchmarks Verified, 6 benchmarks
Output $/Mtok$50.00$1.20
Cost per solved taskNot computable$0.04
Context window1M1.05M