Kimi K3 is the flagship AI model from Moonshot AI, built for complex reasoning, long-horizon coding, knowledge work, research, and agentic tasks. With 2.8 trillion parameters, native multimodal capabilities, and a context window of up to 1 million tokens, Kimi K3 can work with large amounts of text, code, images, videos, and documents.

Kimi K3 powers experiences across the Kimi AI ecosystem, including chat and AI Agent capabilities. It can search the web, analyze files, assist with coding, conduct deep research, process data, and complete multi-step tasks using built-in tools. Its native vision capabilities also allow it to understand visual information and work with formats such as PDFs, Word documents, Excel files, presentations, and images.

Designed for both everyday AI assistance and more demanding professional workflows, Kimi K3 can support developers, researchers, content creators, knowledge workers, and businesses that need an AI system capable of handling complex and long-running tasks.

Features

• Advanced AI Reasoning: Handles complex questions and multi-step reasoning tasks with adjustable thinking levels.

• 1 Million Token Context Window: Processes large documents, extensive codebases, and long conversations while maintaining context.

• Native Multimodal Understanding: Understands text, images, videos, and office documents using native multimodal capabilities.

• Long-Horizon Coding: Assists with complex programming and software development tasks that require extended execution and reasoning.

• AI Agent Capabilities: Plans and executes multi-step tasks using built-in tools with limited manual intervention.

• Web Search: Accesses current information from the web when a task requires up-to-date research.

• Deep Research: Supports comprehensive research workflows and can produce detailed reports.

• Document Processing: Works with PDF, Word, Excel, PowerPoint, images, TXT, and other supported file formats.

• Data Analysis: Uses tools such as Python to analyze information and create data visualizations.

• Website Generation: Can create and deploy websites from natural-language instructions and visual references.

• Agent Swarm: K3 Swarm can coordinate multiple AI sub-agents for large-scale research, search, and batch-processing tasks.

• API Access: Developers can access Kimi models and capabilities through the Kimi Open Platform.

FAQs

What is Kimi K3?

Kimi K3 is Moonshot AI's flagship multimodal AI model. It is designed for advanced reasoning, coding, knowledge work, research, and autonomous AI agent tasks.

Who developed Kimi K3?

Kimi K3 was developed by Moonshot AI, the company behind the Kimi AI assistant and related AI products.

What can Kimi K3 be used for?

Kimi K3 can be used for AI conversations, research, coding, document analysis, data processing, website creation, knowledge work, multimodal analysis, and complex multi-step agent tasks.

Does Kimi K3 support images and documents?

Yes. Kimi K3 has native multimodal capabilities and can understand visual content and work with documents such as PDFs, Word files, Excel spreadsheets, presentations, and images.

What is the context window of Kimi K3?

Kimi K3 supports a context window of up to 1 million tokens, allowing it to work with large documents, codebases, and long-form information.

Can Kimi K3 search the web?

Yes. Kimi includes built-in web search capabilities and can automatically use online search when current information is required.

Is Kimi K3 good for coding?

Yes. Kimi K3 is designed for long-horizon coding and complex software development tasks. It is also integrated into Kimi's developer-focused coding tools.

Does Kimi K3 have AI agent capabilities?

Yes. Kimi K3 powers Kimi's AI Agent capabilities, which can plan tasks, use multiple tools, perform research, generate documents, analyze data, and complete complex workflows.

Is Kimi K3 free?

Kimi offers some functionality without paid credits, but K3 usage is credit-based and access to K3 and advanced features can depend on the user's membership plan. Therefore, the most appropriate pricing classification is Freemium.