Today, we are introducing KimiK2Thinking, our best open-source thinking model.

Built as a thinking agent, it reasons step by step while using tools, achieving state-of-the-art performance on Humanity’s Last Exam (HLE), BrowseComp, and other benchmarks, with major gains in reasoning, agentic search, coding, writing, and general capabilities.

… K2 Thinking is now live on kimi.com under the chat mode [1], with its full agentic mode available soon. —Read More