DeepSeek V4 Flash 0731 vs Kimi K2.6
API pricing, context, and independently measured performance, side by side. DeepSeek V4 Flash 0731 starts 94% cheaper on input than Kimi K2.6 at list prices.
DeepSeek V4 Flash 0731
DeepSeek · released Jul 31, 2026
Best input$0.035 / MTok
Best output$0.075 / MTok
Context1.31M
Providers28
Fastest measured0.48s° TTFT · 65 tok/s
Open weightsToolsReasoningStructured outputPrompt caching
Kimi K2.6
Moonshot AI · released Apr 20, 2026
Best input$0.57 / MTok
Best output$2.47 / MTok
Context262K
Providers20
Fastest measured0.55s° TTFT · 199 tok/s
Open weightsVisionToolsReasoningStructured outputPrompt caching
Cheapest providers, measuredUSD / MTOK
| MODEL | PROVIDER | INPUT | OUTPUT | TTFT | TPS | SMOKE |
|---|---|---|---|---|---|---|
| DeepSeek V4 Flash 0731 | OPOpenInference | $0.035 | $0.075 | 14.9s° | 13° tok/s | 3/5 |
| DeepSeek V4 Flash 0731 | RERelace | $0.04 | $0.08 | 0.49s° | 65° tok/s | 5/5 |
| DeepSeek V4 Flash 0731 | MOMorph | $0.079 | $0.278 | 3.1s° | 15° tok/s | — |
| Kimi K2.6 | INInceptron | $0.57 | $3.41 | 0.82s° | 112° tok/s | 3/5 |
| Kimi K2.6 | CHChutes | $0.58 | $3.40 | 1.2s° | 33° tok/s | 3/5 |
| Kimi K2.6 | DEDecart | $0.587 | $2.47 | 0.69s° | 197° tok/s | 3/5 |
TTFT/TPS: ModelIndex-measured medians (P50, trailing 72h) · 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