GPT-6 Luna vs Grok 4.3

GPT-6 Luna against Grok 4.3
GPT-6 LunaGrok 4.3
Coding index57.337.4
Benchmarks behind it Verified, 5 benchmarks Verified, 3 benchmarks
Output $/Mtok$0.50$2.50
Cost per solved taskNot computable$0.31
Context window1.05M1M