GPT-5.6 Luna vs Muse Spark 1.3

GPT-5.6 Luna against Muse Spark 1.3
GPT-5.6 LunaMuse Spark 1.3
Coding index58.057.4
Benchmarks behind it Verified, 6 benchmarks Verified, 4 benchmarks
Output $/Mtok$1.20$4.25
Cost per solved task$0.04Not computable
Context window1.05M1.05M