DeepSeek V4 Pro 0813 vs GPT-6.1 Sol Pro
API pricing, context, and independently measured performance, side by side. DeepSeek V4 Pro 0813 starts 88% cheaper on input than GPT-6.1 Sol Pro at list prices.
DeepSeek V4 Pro 0813
DeepSeek · released Aug 12, 2026
Best input$0.245 / MTok
Best output$1.85 / MTok
Context1.05M
Providers22
Fastest measured0.57s° TTFT · 116 tok/s
Open weightsToolsReasoningStructured outputPrompt caching
GPT-6.1 Sol Pro
OpenAI · released Sep 29, 2026
Best input$2.00 / MTok
Best output$10.00 / MTok
Context1.05M
Providers6
Fastest measured—
VisionToolsReasoningStructured outputPrompt caching
Cheapest providers, measuredUSD / MTOK
| MODEL | PROVIDER | INPUT | OUTPUT | TTFT | TPS | SMOKE |
|---|---|---|---|---|---|---|
| DeepSeek V4 Pro 0813 |  Wafer | $0.245 | $3.49 | — | — | — |
| DeepSeek V4 Pro 0813 |  Relace | $0.25 | $3.50 | — | — | — |
| DeepSeek V4 Pro 0813 |  Ionstream | $0.636 | $1.85 | 1.9s° | 27° tok/s | — |
| GPT-6.1 Sol Pro |  Azure | $2.00 | $10.00 | — | — | — |
| GPT-6.1 Sol Pro |  OpenAI | $2.00 | $10.00 | — | — | — |
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