DeepSeek V4 Pro 0813 vs GPT-6 Astra
API pricing, context, and independently measured performance, side by side. DeepSeek V4 Pro 0813 starts 93% cheaper on input than GPT-6 Astra at list prices.
DeepSeek V4 Pro 0813
DeepSeek · released Aug 12, 2026
Best input$0.66 / MTok
Best output$1.98 / MTok
Context1.05M
Providers19
Fastest measured0.76s° TTFT · 115 tok/s
Open weightsToolsReasoningStructured outputPrompt caching
GPT-6 Astra
OpenAI · released Sep 4, 2026
Best input$10.00 / MTok
Best output$50.00 / MTok
Context1.05M
Providers5
Fastest measured4.3s° TTFT · 187 tok/s
VisionToolsReasoningStructured outputPrompt caching
Cheapest providers, measuredUSD / MTOK
| MODEL | PROVIDER | INPUT | OUTPUT | TTFT | TPS | SMOKE |
|---|---|---|---|---|---|---|
| DeepSeek V4 Pro 0813 |  DeepSeek | $0.66 | $1.98 | — | — | 0/5 |
| DeepSeek V4 Pro 0813 |  Novita | $1.11 | $3.33 | 1.4s° | 68° tok/s | 4/5 |
| DeepSeek V4 Pro 0813 | BABaidu | $1.12 | $3.36 | — | — | — |
| GPT-6 Astra |  OpenAI | $5.00 | $25.00 | — | — | — |
| GPT-6 Astra |  Azure | $10.00 | $50.00 | 4.3s° | 187° 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