GPT-5.6 Luna vs Muse Ember

GPT-5.6 Luna against Muse Ember
GPT-5.6 LunaMuse Ember
Coding index55.364.9
Benchmarks behind it Verified, 5 benchmarks Verified, 3 benchmarks
Output $/Mtok$1.20$0.50
Cost per solved task$0.04Not computable
Context window1.05M1.05M