Gemini 3.1 Pro Preview vs Mistral Large 4
API pricing, context, and independently measured performance, side by side. Mistral Large 4 starts 66% cheaper on input than Gemini 3.1 Pro Preview at list prices.
Gemini 3.1 Pro Preview
Google · released Feb 19, 2026
Best input$2.00 / MTok
Best output$12.00 / MTok
Context1.05M
Providers6
Fastest measured2.7s° TTFT · 442 tok/s
VisionToolsReasoningStructured outputPrompt caching
Mistral Large 4
Mistral · released Oct 6, 2026
Best input$0.68 / MTok
Best output$2.09 / MTok
Context524K
Providers1
Fastest measured—
VisionToolsReasoningStructured outputPrompt caching
Cheapest providers, measuredUSD / MTOK
| MODEL | PROVIDER | INPUT | OUTPUT | TTFT | TPS | SMOKE |
|---|---|---|---|---|---|---|
| Gemini 3.1 Pro Preview |  Google | $2.00 | $12.00 | — | — | — |
| Gemini 3.1 Pro Preview |  Google AI Studio | $2.00 | $12.00 | 2.7s° | 442° tok/s | — |
| Mistral Large 4 |  Mistral | $0.68 | $2.09 | — | — | — |
TTFT/TPS: ModelIndex-measured medians (P50, trailing 21d) · chat10k profile (~10K in / 200 out) · ° = measured via OpenRouter routing (adds a hop) · SMOKE: of 5 programmatic capability probes passed · methodology v1.1 — full details on each model page