GPT-6 Luna vs Grok 4.5

GPT-6 Luna against Grok 4.5
GPT-6 LunaGrok 4.5
Coding index71.475.5
Benchmarks behind it Partial, 2 benchmarks Partial, 2 benchmarks
Output $/Mtok$0.50$6.00
Cost per solved taskNot computable$0.62
Context window1.05M500K