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7/28/2026
Moonshot API Complete Guide: From Kimi K2 to K3 and Beyond

Moonshot API Complete Guide: From Kimi K2 to K3 and Beyond

Short summary

A comprehensive guide to the Moonshot API ecosystem covering the evolution from Kimi K2 through K3, with code examples in Python and Node.js. K3 is a 2.8-trillion-parameter open-weight model with a 1M-token context window that leads on agentic benchmarks. The API is OpenAI-compatible but requires a Chinese phone number and Chinese payment methods for direct access, creating friction for international developers.

  • •Kimi K3 is a 2.8T-parameter open-weight model with 1M context, leading on agentic benchmarks
  • •Moonshot API is OpenAI-compatible — swap base URL to use existing SDKs
  • •Direct API access requires Chinese phone number and payment methods, creating friction for non-Chinese developers

Generated with AI, which can make mistakes.

#ai-tools#open-source#ai-agents
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The original title is: "Overview of Kimi-K3: Moonshot AI's 2.8T parameter open-weight multimodal model"
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