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 37% cheaper on input than Gemini 3.1 Pro Preview at list prices.
DeepSeek V4 Pro 0813
DeepSeek · released Aug 12, 2026
Best input$0.627 / MTok
Best output$1.88 / MTok
Context1.05M
Providers15
Fastest measured0.76s° TTFT · 115 tok/s
Open weightsToolsReasoningStructured outputPrompt caching
Gemini 3.1 Pro Preview
Google · released Feb 19, 2026
Best input$1.00 / MTok
Best output$6.00 / MTok
Context1.05M
Providers6
Fastest measured2.6s° TTFT · 285 tok/s
VisionToolsReasoningStructured outputPrompt caching
Cheapest providers, measuredUSD / MTOK
| MODEL | PROVIDER | INPUT | OUTPUT | TTFT | TPS | SMOKE |
|---|---|---|---|---|---|---|
| DeepSeek V4 Pro 0813 |  Alibaba | $0.627 | $1.88 | 1s° | 48° tok/s | 4/5 |
| DeepSeek V4 Pro 0813 |  DeepSeek | $0.66 | $1.98 | — | — | 0/5 |
| DeepSeek V4 Pro 0813 | GMIGMICloud | $1.12 | $3.37 | 3.2s° | 57° tok/s | 4/5 |
| Gemini 3.1 Pro Preview |  Google AI Studio | $1.00 | $6.00 | 3.3s° | 671° tok/s | — |
| Gemini 3.1 Pro Preview |  Google | $1.00 | $6.00 | 2.6s° | 285° tok/s | — |
TTFT/TPS: ModelIndex-measured medians (P50, trailing 72h) · 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