Kimi is Moonshot's assistant, famous for long context. The app, the K2/K3 weights, and what long context actually buys you.
- 1 What Kimi is (Moonshot) in plain English Theo uploaded a 410-page due-diligence PDF because Kimi advertises a million tokens, then got a cite from page 12 of a different deal. Kimi is Moonshot AI's assistant (chat app, K2 and K3 weights, and an API), and the window is a suitcase, not memory. Scheduled · September 25, 2026