DeepSeek V4 Pro 0813 vs GPT-6.1 Terra
API pricing, context, and independently measured performance, side by side. DeepSeek V4 Pro 0813 starts 90% cheaper on input than GPT-6.1 Terra at list prices.
DeepSeek V4 Pro 0813
DeepSeek · released Aug 12, 2026
Best input$0.103 / MTok
Best output$0.851 / MTok
Context1.05M
Providers27
Fastest measured0.58s° TTFT · 169 tok/s
Open weightsToolsReasoningStructured outputPrompt caching
GPT-6.1 Terra
OpenAI · released Oct 26, 2026
Best input$1.00 / MTok
Best output$5.00 / MTok
Context1.05M
Providers5
Fastest measured2.4s° TTFT · 141 tok/s
VisionToolsReasoningStructured outputPrompt caching
Cheapest providers, measuredUSD / MTOK
| MODEL | PROVIDER | INPUT | OUTPUT | TTFT | TPS | SMOKE |
|---|---|---|---|---|---|---|
| DeepSeek V4 Pro 0813 |  Relace | $0.103 | $8.00 | 0.69s° | 136° tok/s | — |
| DeepSeek V4 Pro 0813 |  Wafer | $0.115 | $4.00 | 0.58s° | 169° tok/s | — |
| DeepSeek V4 Pro 0813 |  Baidu | $0.284 | $0.851 | 2.2s° | 45° tok/s | — |
| GPT-6.1 Terra |  OpenAI | $1.00 | $5.00 | 2.4s° | 141° tok/s | — |
| GPT-6.1 Terra |  Azure | $1.20 | $6.00 | — | — | — |
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