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Kimi API

Moonshot's Kimi models — a frontier tier and a coding-specialised one.

At a glance

From
$1.11 / 1M tokens

Models in this family

ModelFromModesOpen
Kimi K3Moonshot's frontier model — long-context reasoning and agentic tool use.$3.15/ 1M tokens—OpenDocs
Kimi K2.7 CodeCoding-specialised Kimi tier tuned for repository-scale edits and agentic software tasks.$1.11/ 1M tokens—OpenDocs

Pricing

ModelOptionPrice
Kimi K3input$3.15/ 1M tokens
Kimi K3output$15.75/ 1M tokens
Kimi K3cacheRead$0.315/ 1M tokens
Kimi K2.7 Codeinput$1.11/ 1M tokens
Kimi K2.7 Codeoutput$4.62/ 1M tokens
Kimi K2.7 CodecacheRead$1.11/ 1M tokens
Kimi K2.7 CodecacheWrite$1.11/ 1M tokens

Which one to pick

  • Kimi K3

    Long-context reasoning and agentic tool use — the general frontier tier.

  • Kimi K2.7 Code

    Repository-scale code edits and agentic software work, where a coding-tuned model beats a general one.

Strengths

  • A coding-specialised tier that is not just the general model with a different prompt.
  • K2.7 Code is the lower-priced tier — under half of K3 on both input and output — so the coding specialist is also the cheaper option.
  • Prompt caching on both tiers.
  • OpenAI-protocol compatible.

Limitations

  • Output costs four to five times input on both tiers, so long generations dominate the bill.
  • Only two tiers, and the cheaper one is specialised for code — there is no low-cost general-purpose option.

Frequently asked questions

How much does the Kimi API cost?

API Stock bills per use from one prepaid balance, with no subscription. Current prices: Kimi K3 — $3.15 per 1M input tokens and $15.75 per 1M output tokens; Kimi K2.7 Code — $1.11 per 1M input tokens and $4.62 per 1M output tokens.

Which Kimi model is the cheapest?

Kimi K2.7 Code is the cheapest at $1.11 per 1M input tokens. The most expensive tier, Kimi K3, costs $3.15 per 1M input tokens.

Does the Kimi API support prompt caching?

Yes. Cached input tokens are billed at a lower rate: Kimi K3 — $0.315 instead of $3.15 per 1M tokens; Kimi K2.7 Code — $1.11 instead of $1.11 per 1M tokens.

Can I use the Kimi API with the OpenAI or Anthropic SDK?

Yes. Kimi models accept the OpenAI request format: set the SDK's base URL to https://api.api-stock.com/api/v1 and use your API Stock API key. Switching between models only changes the model id.

How do I get an API key for Kimi?

Create an account and API key on API Stock, then fund your balance. The same key works with Kimi and other catalog models.

The vendor's own description of this line: Moonshot AI — docs

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