Review Kimi K3.1 Pro on key metrics including price, context length, throughput, and model features.
AuthorMoonShotAI
Context Length1.0M
Supports Tools
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D creation, financial research, and end-to-end agentic knowledge work, with native image and video understanding.