Gemini 3.1 Pro Preview vs Grok 4.20

Gemini 3.1 Pro Preview against Grok 4.20
Gemini 3.1 Pro PreviewGrok 4.20
Coding index32.333.3
Benchmarks behind it Verified, 4 benchmarks Partial, 2 benchmarks
Output $/Mtok$12.00$2.50
Cost per solved task$0.99$0.72
Context window1.05M2M