DeepSeek V4 Pro 0813 vs Gemini 3.1 Pro Preview
API pricing, context, and independently measured performance, side by side. DeepSeek V4 Pro 0813 starts 92% cheaper on input than Gemini 3.1 Pro Preview at list prices.
DeepSeek V4 Pro 0813
DeepSeek · released Aug 12, 2026
Best input$0.158 / MTok
Best output$1.98 / MTok
Context1.05M
Providers24
Fastest measured0.57s° TTFT · 116 tok/s
Open weightsToolsReasoningStructured outputPrompt caching
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
Cheapest providers, measuredUSD / MTOK
| MODEL | PROVIDER | INPUT | OUTPUT | TTFT | TPS | SMOKE |
|---|---|---|---|---|---|---|
| DeepSeek V4 Pro 0813 |  Relace | $0.158 | $4.20 | — | — | — |
| DeepSeek V4 Pro 0813 |  Wafer | $0.175 | $3.40 | — | — | — |
| DeepSeek V4 Pro 0813 | SRSail Research | $0.40 | $4.30 | 2.6s° | 28° tok/s | — |
| 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 | — |
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