GPT-5.4 vs Muse Ember

GPT-5.4 against Muse Ember
GPT-5.4Muse Ember
Coding index64.364.9
Benchmarks behind it Verified, 3 benchmarks Verified, 3 benchmarks
Output $/Mtok$15.00$0.50
Cost per solved task$1.02Not computable
Context window1.05M1.05M