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Model Details
Domain:
Task:
Model Access:
Open weights (restricted use)
Introduction
Kimi K2 is our latest Mixture-of-Experts model with 32 billion activated parameters and 1 trillion total parameters. It achieves state-of-the-art performance in frontier knowledge, math, and coding among non-thinking models. But it goes further — meticulously optimized for agentic tasks, Kimi K2 does not just answer; it acts. And now, it is within your reach. Today, we are open-sourcing: Kimi-K2-Base: The foundation model, a strong start for researchers and builders who want full control for fine-tuning and custom solutions. Kimi-K2-Instruct: The post-trained model best for drop-in, general-purpose chat and agentic experiences. It is a reflex-grade model without long thinking. With Kimi K2, advanced agentic intelligence is more open and accessible than ever. We can't wait to see what you build.
Benchmarking
FLOPs2.98e+24
Notes: 6 FLOP / parameter / token * 32 * 10^9 activated parameters * 15.5 * 10^12 tokens = 2.976e+24 FLOP
Training
Training Code AccessibilityModified MIT license (separare license is required for entities with 100M+ MAU or $20M+ in annual revenue) for weights and inference code: https://huggingface.co/moonshotai/Kimi-K2-Instruct https://github.com/MoonshotAI/Kimi-K2?tab=readme-ov-file#4-deployment API: https://platform.moonshot.cn/docs/pricing/chat#%E8%AE%A1%E8%B4%B9%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5
HardwareNVIDIA H800 SXM5
Size Notes: "Kimi K2 was pre-trained on 15.5T tokens"
Parameters
Parameters1000000000000
Notes: MoE with 1T total parameters and 32B parameters active per forward pass
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