What is Kimi API 开放平台?
Kimi API Open Platform is the developer platform of Moonshot AI (Beijing). It provides API access to the Kimi K3 flagship model, which the page describes as having 2.8 trillion parameters, a 1M token context window, multimodal understanding and Tool Calling, along with K2.7 Code (256k context, aimed at long-context programming) and K2.6 (a general model accepting text and image input, with thinking and non-thinking modes).
Developers call the models through the API and can add official tools such as web search, Python and JavaScript code execution, Excel/CSV analysis, memory storage, URL-to-markdown extraction and unit conversion. The page cites use cases including autonomous coding agents, deep research and analysis, legal and compliance document review, and conversation analysis, and lists several companies that integrated K3 into their products.
Key features
- 1M token context window on Kimi K3
- Multimodal input (text and images) with thinking and non-thinking modes
- Tool Calling with official tools such as web search and code runner
- Prompt caching with 5min and 1h TTL options
- Batch inference and file content extraction
- Enterprise tier with SLA and dedicated support
Who is it for
- software developers building AI applications
- engineering teams running coding agents
- enterprises needing compliance and SLA guarantees
Pros and cons
- Very large 1M token context window on the flagship model
- Pay-as-you-go pricing with cache discounts on repeated prefixes
- No subscription plan; billing is purely per token
- Pricing is listed in CNY (RMB)
Kimi API 开放平台 pricing
| Plan | Price | Includes |
|---|---|---|
| Kimi K3 input | 20 CNY | per 1M tokens, cache miss |
| Kimi K3 output | 100 CNY | per 1M tokens |
| Kimi K3 cache write | 20 CNY | per 1M tokens, TTL 5min or 1h |
| Kimi K3 cache hit | 2 CNY | per 1M tokens |
| Kimi K2.7 Code input | 6.5 CNY | per 1M tokens, 256k context |
| Kimi K2.7 Code output | 27 CNY | per 1M tokens |
Prices copied from Kimi API 开放平台 pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Kimi API 开放平台 pricing details →
Is Kimi API 开放平台 free?
The vendor does not state this clearly on the homepage or pricing page.
Kimi API 开放平台 alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 OpenRouter | not listed | yes | APIs & models |
 DeepSeek | 0.02 USD | ? | Chatbots & AI assistants |
 OpenAI Platform | 0,10 USD | ? | APIs & models |
 DeepSeek API | not listed | ? | APIs & models |
 xAI API | 0.002 USD | trial | APIs & models |
 Cerebras | 5 USD | trial | APIs & models |
All alternatives to Kimi API 开放平台 →
FAQ
What is Kimi API 开放平台 used for?
API platform from Moonshot AI giving developers access to the Kimi K3 and K2 family of large language models for coding, chat and multimodal tasks.
Is Kimi API 开放平台 free?
The vendor does not state this clearly on the homepage or pricing page.
How much does Kimi API 开放平台 cost?
The cheapest paid plan is 2 CNY (vendor pricing, October 12, 2026).
What are the best Kimi API 开放平台 alternatives?
Closest alternatives: OpenRouter, DeepSeek, OpenAI Platform, DeepSeek API, xAI API.
Data checked October 12, 2026 on the vendor website (platform.moonshot.cn).