GPT-6.1 Terra vs Grok 4.5

GPT-6.1 Terra against Grok 4.5
GPT-6.1 TerraGrok 4.5
Coding index77.452.3
Benchmarks behind it Verified, 4 benchmarks Verified, 5 benchmarks
Output $/Mtok$5.00$6.00
Cost per solved taskNot computable$0.62
Context window1.05M500K