Moonshot AI
Open source activity
As of Nov 6, 2026
Moonshot AI's open-source program is genuinely full-stack: open-weight model releases (Kimi-K3, branded "Open Frontier Intelligence," and the smaller Kimi-K2.5) sit alongside the lower-level infrastructure that makes serving them efficient — FlashKDA, custom CUDA kernels for Kimi's own "Delta Attention" mechanism, and MoonEP, an expert-parallelism library for balancing load across a mixture-of-experts model via dynamic redundant experts.
On top of that sits checkpoint-engine, middleware for swapping model weights in a live inference engine without a full restart, and kimi-code, a coding-agent CLI (already past 8,000 stars) that mirrors the same developer-agent pattern OpenAI (Codex) and Anthropic (Claude Code) have built around their own models. Releasing the attention kernels and parallelism layer in the open, not just the model weights, is a meaningfully deeper level of openness than most labs practice — it lets others actually reproduce Kimi's efficiency claims rather than take them on faith.
Most active repositories
| Repository | Description | Language | Stars | Last pushed |
|---|---|---|---|---|
| MoonshotAI/kimi-code | Kimi Code CLI — The Starting Point for Next-Gen Agents | TypeScript | 8,151 | Nov 6, 2026 |
| MoonshotAI/TCSExam | A benchmark for the full range of theoretical computer science (TCS) research. | Python | 11 | Nov 6, 2026 |
| MoonshotAI/Kimi-Vendor-Verifier | Kimi-Vendor-Verifier | Python | 198 | Nov 5, 2026 |
| MoonshotAI/FlashKDA | FlashKDA: high-performance Kimi Delta Attention kernels | Cuda | 1,296 | Oct 26, 2026 |
| MoonshotAI/checkpoint-engine | Checkpoint-engine is a simple middleware to update model weights in LLM inference engines | Python | 1,023 | Oct 22, 2026 |
| MoonshotAI/MoonEP | MoonEP: A Perfectly Balanced Expert Parallelism Library via Dynamic Redundant Experts | Python | 1,202 | Oct 12, 2026 |
| MoonshotAI/walle | — | Go | 29 | Sep 15, 2026 |
| MoonshotAI/Kimi-K2.5 | Open Visual Agentic Intelligence | — | 2,321 | Aug 6, 2026 |
| MoonshotAI/Kimi-K3 | Open Frontier Intelligence | — | 9,047 | Aug 6, 2026 |
| MoonshotAI/PerceptionBench | PerceptionBench: Evaluating Atomic Visual Perception in Multimodal Large Language Models | Python | 219 | Aug 3, 2026 |
| MoonshotAI/.github | — | — | 2 | Jul 28, 2026 |
| MoonshotAI/minitriton | — | Python | 86 | Jul 27, 2026 |
| MoonshotAI/nano-kpu | — | Verilog | 145 | Jul 23, 2026 |
| MoonshotAI/kosong | The LLM abstraction layer for modern AI agent applications. | — | 525 | Jul 16, 2026 |
| MoonshotAI/CombiBench | — | Lean | 56 | Jun 15, 2026 |
| MoonshotAI/kimi-agent-sdk | Kimi Agent SDK provides a programmatic interface to interact with the Kimi CLI | TypeScript | 580 | May 29, 2026 |
| MoonshotAI/Attention-Residuals | — | — | 3,567 | Mar 17, 2026 |
| MoonshotAI/Branding-Guide | — | HTML | 3 | Mar 11, 2026 |
| MoonshotAI/K2-Vendor-Verifier | Verify Precision of all Kimi K2 API Vendor | Python | 601 | Feb 14, 2026 |
| MoonshotAI/kimi-agent-rs | Kimi Agent (Rust), the Kimi Code CLI Wire mode-compatible agent server. | Rust | 76 | Feb 6, 2026 |