Kimi is the flagship product line from 📝Moonshot AI, a Chinese AI startup, encompassing both a consumer chatbot and the K2 model series. The K2 models use a mixture-of-experts architecture with 1 trillion total parameters and 32 billion active parameters, achieving performance comparable to 📝OpenAI o1 on mathematics and coding benchmarks. Released as open-source in July 2025, K2 represents a major push in Chinese AI development. The product line also includes Kimi-VL, a 16-billion-parameter multimodal vision-language model built on the same 📝Mixture of Experts (MoE) architecture.