Gemini 3.1 Pro Preview vs Gemini 4 Carbon

Gemini 3.1 Pro Preview against Gemini 4 Carbon
Gemini 3.1 Pro PreviewGemini 4 Carbon
Coding index32.386.6
Benchmarks behind it Verified, 4 benchmarks Verified, 4 benchmarks
Output $/Mtok$12.00$10.00
Cost per solved task$0.99Not computable
Context window1.05M1.05M