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Kimi K3.1 Pro vs Kimi K3

Side by side

SpecKimi K3.1 ProKimi K3
Lowest input$2.00Nebius$0.60Wafer
Lowest output$10.00Nebius$9.50Chutes
Lowest cached input$0.20Nebius$0.185Chutes
Context1.05M1.05M
Max output524K524K
Providers510
ReleasedOctober 24, 2026July 16, 2026
WeightsOpenOpen
LabMoonshot AIMoonshot AI
Model IDmoonshotai/kimi-k3.1-promoonshotai/kimi-k3

USD per 1M tokens, as of November 5, 2026.

Price by provider

ProviderKimi K3.1 ProKimi K3
Doubleword$2.00 / $10.00$3.00 / $15.00
Inference.net$2.00 / $10.00$3.00 / $15.00
Nebius$2.00 / $10.00$3.00 / $15.00
Novita AI$2.00 / $10.00$3.00 / $15.00
Wafer$2.00 / $10.00$0.60 / $15.00
Chutes–$1.85 / $9.50
DeepInfra–$2.85 / $14.25
Morph–$2.50 / $14.00
Phala–$3.00 / $15.00
Sail Research–$1.50 / $10.00

Input / output, USD per 1M tokens.

Cost

Model1,000 chat replies2K in, 500 out each1,000 agent tasks50K in, 5K out eachMonthly batch job500M in, 50M out
Kimi K3.1 ProNebius$9.00$150.00$1,500.00
Kimi K3Chutes$8.45$140.00$1,400.00

On each model's cheapest provider by input plus output list price.

FAQ

Which is cheaper, Kimi K3.1 Pro or Kimi K3?

Input: Kimi K3 at $0.60 per million input tokens vs $2.00 (Kimi K3.1 Pro), 3.3x lower. Output: Kimi K3 at $9.50 per million output tokens vs $10.00 (Kimi K3.1 Pro), 5% lower. Lowest listed prices as of November 5, 2026.

Which has the longer context window?

Both list 1.05M tokens of context.

Which providers serve both Kimi K3.1 Pro and Kimi K3?

5 providers serve both: Nebius, Novita AI, Inference.net, Doubleword, Wafer. Kimi K3.1 Pro has 5 providers in total and Kimi K3 has 10.

Do Kimi K3.1 Pro and Kimi K3 have cached input pricing?

Kimi K3.1 Pro from $0.20 per million cached input tokens (Nebius). Kimi K3 from $0.185 (Chutes).

Can I switch between Kimi K3.1 Pro and Kimi K3 without changing code?

Yes. Both use the same OpenAI-compatible endpoint, https://api.routerplus.com/v1, and key. Change the model field from "moonshotai/kimi-k3.1-pro" to "moonshotai/kimi-k3".

All comparisons

Run Kimi K3.1 Pro and Kimi K3 on one key