Kimi

Kimi is an AI assistant developed by Moonshot AI (Beijing Moonshot Technology Co., Ltd.), a fast-growing Chinese AI unicorn founded in March 2023. Powered by Moonshot's proprietary large language models, Kimi is designed to deliver intelligent conversation, deep research, document analysis, code generation, and autonomous AI Agent capabilities.

Kimi currently runs on the K2.5 model — one of the most powerful open-source models available. K2.5 was pre-trained on approximately 15 trillion mixed visual and text tokens, delivering state-of-the-art coding, vision understanding, and agentic capabilities. Kimi supports four modes: K2.5 Instant, K2.5 Thinking, K2.5 Agent, and K2.5 Agent Swarm (Beta).

Available via web, mobile app, and API, Kimi serves both individual users and enterprise developers. Its specialized workspaces — Websites, Docs, Slides, Sheets, Deep Research, and Kimi Code — make it a versatile AI assistant that competes directly with ChatGPT and Claude, with particular strength in coding and autonomous Agent tasks.

Kimi Core Features

• K2.5 Agent Swarm: Kimi's proprietary multi-agent orchestration technology automatically creates and coordinates up to 100 sub-agents working in parallel, supporting up to 1,500 tool calls per task. This reduces execution time by up to 4.5x compared to single-agent setups — one of the most advanced autonomous AI task execution capabilities available today.

• Visual Coding: K2.5 combines vision understanding with code generation to convert images and videos directly into runnable front-end code, including interactive layouts and animations. Users can upload a screenshot or UI mockup and receive complete, working web code.

• Deep Research: Automatically searches and analyzes extensive web resources to produce structured, comprehensive research reports — like having a dedicated AI research assistant for any topic.

• Websites: Paste any URL and Kimi fetches and analyzes the page content, extracting key information and answering questions based on the live web content.

• Docs: Upload PDF, Word, TXT, and other document formats for summarization, Q&A, and key information extraction — especially strong with long documents.

• Slides: Automatically generates well-structured, visually appealing PowerPoint presentations from user descriptions or uploaded document content.

• Sheets: Upload Excel or CSV files for data analysis, formula generation, and chart recommendations.

• Kimi Code: A dedicated coding assistant supporting multiple programming languages for code generation, debugging, and refactoring, with K2.5 achieving leading scores on SWE-Bench Verified.

How to Use Kimi

Getting Started

1. Access Kimi: Visit kimi.moonshot.cn or kimi.ai, or download the Kimi App.
2. Sign in: Register with a phone number and log in. Free tier features are available immediately.
3. Choose a mode: K2.5 Instant for quick responses, K2.5 Thinking for complex reasoning, K2.5 Agent for autonomous task execution, Agent Swarm for highly complex multi-step tasks.
4. Select a workspace: Use the top navigation to choose Websites, Docs, Slides, Sheets, or Deep Research based on your task.
5. Enter your request: Type a question, paste a URL, or upload a document or image for analysis.
6. Use Kimi Code: Visit kimi.moonshot.cn/code for the dedicated coding assistant with 3x boost.

Tips and Best Practices

• Use Agent mode for complex tasks: For multi-step tasks like "research competitors and generate a report," use K2.5 Agent mode to let Kimi execute autonomously without manual step-by-step guidance.
• Multi-URL analysis: Paste multiple URLs at once for Kimi to analyze and compare several pages simultaneously — great for competitive analysis or news aggregation.
• Document Q&A workflow: After uploading a document, ask for an outline first, then drill into specific sections for more precise answers.
• Visual coding: Screenshot an existing webpage or UI design and ask Kimi to generate the corresponding HTML/CSS code for rapid prototyping.
• Deep Research: Provide a clear research direction and desired output format to get more structured, actionable research reports.

Why Choose Kimi

• Leading Agent Swarm technology: Kimi K2.5's multi-agent orchestration — 100 parallel sub-agents, 1,500 tool calls — is the most advanced capability of its kind in open-source models, enabling complex task execution that ChatGPT and Claude currently cannot match.

• Outstanding visual coding: K2.5 excels at combining vision understanding with code generation, converting images and videos directly into front-end code. Its leading SWE-Bench Verified scores make it a top choice for developers.

• Open-source transparency: Kimi K2 and K2.5 models are open-sourced on Hugging Face, allowing developers to download weights for research and private deployment — rare openness for a commercial AI assistant.

• Purpose-built workspaces: Websites, Docs, Slides, Sheets, and Deep Research workspaces are deeply optimized for their respective use cases, delivering more efficient experiences than a generic chat interface.

• Rapid iteration: Moonshot AI's fast development pace — from K1.5 to K2 to K2.5 — means users continuously benefit from significant capability improvements.

• Open API platform: Full API access via platform.moonshot.cn enables developers to integrate Kimi's capabilities into their own applications.

Kimi Pricing

Kimi offers a free individual tier and paid plans. Enterprise API access is billed per token through the Moonshot platform:

Access Type	Price	Notes
Individual Free	Free	Core chat, document processing, web analysis
Individual Paid	See official site	Higher usage limits, priority access to Agent Swarm Beta
Enterprise API	Per-token billing	Via platform.moonshot.cn

Additional Notes:

• Agent Swarm Beta: Currently in beta; high-tier paid users receive free credits to try the feature.
• API pricing: Moonshot's open platform offers moonshot-v1-8k, moonshot-v1-32k, and moonshot-v1-128k context variants billed per token. See platform.moonshot.cn/docs/pricing for current rates.
• New user credits: New registrants typically receive free usage credits; check the official site for current amounts.

Kimi Support

• Official Website: kimi.moonshot.cn or kimi.ai — Kimi product homepage.

• Moonshot AI: moonshot.cn — Company website with latest research and product news.

• API Platform Docs: platform.moonshot.cn — Enterprise API documentation, SDK guides, and pricing.

• GitHub: github.com/MoonshotAI — Open-source repositories including Kimi-VL, Kimi-Audio, and Kimi-Dev.

• Hugging Face: huggingface.co/moonshotai — Open-source model downloads including Kimi K2 series weights.

• User Feedback: Click "User Feedback" within the Kimi interface to submit feedback and bug reports.

Download Kimi

• Web App: Access at kimi.moonshot.cn or kimi.ai — no download required, works in all major browsers.

• iOS App: Search "Kimi" in the Apple App Store. Supports iPhone and iPad with voice input support.

• Android App: Search "Kimi" in major Android app stores. Scan the QR code on moonshot.cn for a direct download link.

• Enterprise API: Obtain an API key from Moonshot Open Platform and integrate using Python, JavaScript, or other language SDKs.

Additional Information

History: Moonshot AI was founded in March 2023. Kimi launched in October 2023 and quickly gained traction in China for its long-context capabilities (early support for 2 million character context). The K2 series launched in 2025 with major improvements in coding and Agent capabilities. K2.5 was released in January 2026, introducing Visual Agentic Intelligence and Agent Swarm technology.

Funding: Moonshot AI is one of China's most well-funded AI startups, backed by Alibaba, Sequoia Capital China, and other prominent investors, with a valuation exceeding $3 billion.

Technical innovations: Moonshot has published notable research including MoBA (Mixture of Block Attention), Mooncake (KVCache-centric disaggregated LLM serving architecture), and Kimi-Researcher, all open-sourced on GitHub.

Data privacy: Kimi complies with China's Personal Information Protection Law (PIPL). User data is stored on servers within China. Users can manage conversation history in account settings.

Competitive positioning: Compared to ERNIE Bot and Tongyi Qianwen, Kimi stands out in coding and Agent capabilities. Compared to ChatGPT, Kimi is better suited for Chinese users due to domestic compliance. Kimi's Agent Swarm technology is a distinctive capability not yet matched by most competing AI assistants.

Supported languages: Primarily optimized for Chinese and English, with strongest performance in Chinese-language contexts.