Kimi

Overview

Kimi is the AI assistant from Moonshot AI. It now runs on Kimi K3.1 Pro, an open-weight, natively multimodal model built for agent and coding work. You can use Kimi on the web and in mobile apps, on the desktop through Kimi Work, in the terminal through Kimi Code, and through the Kimi API.

Main features

• Long context: K3.1 Pro handles about one million tokens and accepts text and images, which helps with long documents, codebases and screenshots.
• Agent tasks: browsing, research and multi-step work; Moonshot reports strong scores on browsing and coding benchmarks (vendor figures).
• Kimi Work: a desktop app for Windows and Apple-silicon Macs (version 3.1.0 or later).
• Kimi Code: a coding tool where you choose K3.1 Pro with the /model command.
• API: model IDs kimi-k3.1-pro and the faster kimi-k3.1-pro-highspeed, with OpenAI- and Anthropic-compatible endpoints and Zero Data Retention for API customers.

Pricing

Kimi offers a free entry on the web and in its apps. Paid membership and API prices are shown in your account and on the Kimi platform; check them there before you subscribe. Kimi Enterprise admins must switch K3.1 Pro on for their organisation.

Platforms

Web, iOS, Android and HarmonyOS apps, Kimi Work for Windows and macOS, Kimi Code, and the API. The K3.1 Pro weights are also on Hugging Face for self-hosting.

Who it is for

Students, researchers and professionals who work with long documents, and developers who want a strong open-weight model they can also call through an API.

How to start

Open Kimi on the web or app, upload a long report or a few screenshots, and ask for a structured summary with page references. Developers can start from the API quickstart on the Kimi platform.

Things to note

Benchmark results are reported by Moonshot. Read the Kimi K3.1 Pro License before using the open weights commercially.

Similar tools

DeepSeek, Qwen, ChatGPT, Claude, Doubao, Yuanbao.