DeepSeek V4 Pro 0813 vs gpt-oss-20b
API pricing, context, and independently measured performance, side by side. gpt-oss-20b starts 97% cheaper on input than DeepSeek V4 Pro 0813 at list prices.
DeepSeek V4 Pro 0813
DeepSeek · released Aug 12, 2026
Best input$0.66 / MTok
Best output$1.98 / MTok
Context1.05M
Providers14
Fastest measured—
Open weightsToolsReasoningStructured outputPrompt caching
gpt-oss-20b
OpenAI · released Aug 5, 2025
Best input$0.02 / MTok
Best output$0.10 / MTok
Context131K
Providers13
Fastest measured1s° TTFT · 54 tok/s
Open weightsToolsReasoningStructured 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 | STStreamLake | $1.12 | $3.35 | — | — | 5/5 |
| DeepSeek V4 Pro 0813 | GMIGMICloud | $1.12 | $3.37 | — | — | 4/5 |
| gpt-oss-20b | DADarkbloom | $0.02 | $0.10 | — | — | — |
| gpt-oss-20b | CWCoreWeave | $0.03 | $0.13 | — | — | 5/5 |
| gpt-oss-20b |  DeepInfra | $0.03 | $0.14 | — | — | 2/5 |