Kimi K3.1 Pro

Kimi K3.1 Pro is Moonshot AI's flagship multimodal reasoning model, positioned at the top of the Kimi family for demanding, multi-step tasks. It accepts text, images, and video to generate written answers, taking in book-length documents in a single pass without losing context. The model is built to think through problems step by step, call external digital tools, and format its responses into structured data. In everyday work, it handles complex programming projects from quick codebase fixes to building interactive experiences across game engines, and it can turn text briefs, sketches, or reference images into usable three-dimensional models by writing scripts directly for professional modeling software. It also assists in financial analysis by verifying facts across multiple records and managing detailed spreadsheets.

This model is well suited for developers, financial researchers, and technical creators who need reliable execution across long-horizon planning and specialized design workflows. Compared to its predecessor, Kimi K3, it delivers noticeably better accuracy in financial modeling and factual recall, alongside stronger capabilities in long-form coding and three-dimensional creation. Moonshot AI also offers a high-speed edition for faster interactions, though its cybersecurity research capabilities have been intentionally restricted during training to reduce potential misuse risks.