DeepSeek V4 Pro 0813 vs gpt-oss-120b
API pricing, context, and independently measured performance, side by side. gpt-oss-120b starts 95% 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
Providers19
Fastest measured0.76s° TTFT · 115 tok/s
Open weightsToolsReasoningStructured outputPrompt caching
gpt-oss-120b
OpenAI · released Aug 5, 2025
Best input$0.03 / MTok
Best output$0.17 / MTok
Context131K
Providers21
Fastest measured0.23s° TTFT · 290 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 |  Novita | $1.11 | $3.33 | 1.4s° | 68° tok/s | 4/5 |
| DeepSeek V4 Pro 0813 | BABaidu | $1.12 | $3.36 | — | — | — |
| gpt-oss-120b | AKAkashML | $0.03 | $0.17 | 1.6s° | 68° tok/s | 4/5 |
| gpt-oss-120b | CWCoreWeave | $0.03 | $0.17 | 0.76s° | 51° tok/s | 3/5 |
| gpt-oss-120b |  DeepInfra | $0.037 | $0.17 | 0.56s° | 54° tok/s | 4/5 |
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