Hello, Welcome to Kimi AI
Meet Kimi K2—your all-in-one AI assistant for research, writing, coding, and more, powered by a multimodal, long-context brain that understands complexity and delivers clarity.
What is Kimi AI
Kimi AI is a next-generation AI assistant built on the Kimi K2 model, which leverages a Mixture-of-Experts (MoE) architecture. It’s developed by Moonshot AI, a research-focused AI company committed to creating intelligent, open-source systems. Kimi is optimized for:
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Research and summarization
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Coding and debugging
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Data analysis
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Multimodal input (text, images, code)
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Autonomous agentic reasoning
Available via web, mobile, API, and open-source deployment, Kimi AI makes high-end language intelligence accessible to developers, researchers, and everyday users alike.
Key Features
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128,000-token context windowAllows Kimi to handle extremely long documents, codebases, or conversations in a single session.
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Mixture-of-Experts Model:Kimi K2 uses 1 trillion total parameters (32 billion active at inference), balancing performance and efficiency.
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Agentic IntelligenceKimi AI can autonomously interact with tools, web search, and external data—ideal for complex workflows and reasoning tasks.
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Multimodal SupportAccepts text, code, and images, making it suitable for document processing, visual analysis, and code generation.
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PersonalizationLearns from user interaction to deliver context-aware and tailored responses.
Where Can You Use Kimi AI
You can use Kimi AI across several platforms and access methods, depending on your needs—whether you're a casual user, developer, or researcher. Here's a breakdown of where and how you can use Kimi AI:
How to Use Kimi AI (Kimi K2)
Kimi K2 is a powerful AI model that can be accessed and integrated through multiple methods, depending on your technical needs and use case. Here’s how you can start using it:
Key Module / Research of Kimi AI
Everything you need to leverage cutting-edge AI technology for knowledge, reasoning, and coding tasks.
Kimi K2
Flagship LLM with MoE and long-context support
Kimi-Researcher
Summarization and research assistant
Kimi-Dev
Code generation and developer tooling
Kimi-Audio
Speech and audio-related capabilities
Kimina-Prover (Preview)
Logic-based validation and reasoning
Kimi-VL
Multimodal image-text model
Muon
Optimizer for efficient large-scale LLM training
MoBA
Block attention architecture for long-context processing
Kimi k1.5
Predecessor model trained with reinforcement learning
Mooncake
Efficient LLM serving system architecture
Kimi AI Pricing
Kimi AI offers flexible pricing for individuals, teams, and developers. It’s free to use on web and mobile with basic features, while paid plans ($9.99–$49.99/month) unlock advanced tools and higher usage caps. Its API is affordably priced at $0.60 per 1M input tokens and $2.50 per 1M output tokens, with discounts for cached usage. All plans support long-context inputs up to 128,000 tokens.
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Free Tier: $0
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Individual Pro: $9.99–$19.99
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Professional: $29.99–$49.99
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Enterprise: Custom Pricing
Kimi AI K2
Kimi AI K2 is the flagship large language model developed by Moonshot AI, designed to push the boundaries of open agentic intelligence. Leveraging a mixture-of-experts (MoE) architecture and a context window of up to 128,000 tokens, Kimi K2 is optimized for tasks involving complex reasoning, tool use, long-form understanding, and code generation.
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Agentic CapabilitiesKimi K2 can autonomously decide which tools to use and how to apply them to achieve user-defined goals, making it ideal for automated workflows, research analysis, software development, and even multi-step planning tasks.
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Multimodal ReadyWhile current vision capabilities are limited, Kimi K2 is designed with future multimodal support in mind for integrating image, code, and document understanding.
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Two Model VariantsKimi-K2-Base: A foundational model optimized for fine-tuning and internal adaptation.Kimi-K2-Instruct: Tailored for interactive tasks like chat, agent-driven queries, and structured document reasoning.
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Efficient & Scalable:Powered by the MuonClip optimizer, Kimi K2 ensures training stability and superior token efficiency, outperforming previous models like DeepSeek and Claude on benchmarks for reasoning, STEM, and agentic coding.
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Tool Use & Reinforcement LearningTrained on large-scale simulated environments with reinforcement learning, Kimi K2 excels at combining logic, language, and action—enabling it to operate autonomously in terminal environments, code editors, and complex analytics pipelines.
Frequently Asked Questions About Kimi K2
Have another question? Contact us through our official channels.
What is Kimi AI?
Kimi AI is an advanced AI assistant developed by Moonshot AI, designed for high-performance reasoning, natural language processing, and multi-modal interactions. It offers features like long-context understanding, real-time answering, and agentic task execution, making it suitable for both casual users and enterprise applications.
What is an Example Use Case of Kimi AI?
One popular use case of Kimi AI is in academic research assistance. A user can upload entire PDFs or datasets, and Kimi will summarize key findings, generate citations, or even critique methodologies—greatly enhancing productivity for students and researchers.
What Makes Kimi AI Unique Compared to Other AI Assistants?
Kimi AI stands out with:
Ultra-Long Context Window (over 2 million tokens) for deep, coherent conversations and document understanding.
Agentic Automation Capabilities allowing Kimi to reason, plan, and execute multi-step tasks autonomously.
Privacy-focused Design with local data processing options.
Fluent Multimodal Understanding combining text, image, and code inputs for versatile use.
How is Kimi AI Used in Real-World Applications?
In real-world settings, Kimi AI powers:
Customer Service Agents that autonomously resolve support tickets.
Legal Tech Platforms that parse and interpret complex legal documents.
Finance and Investment Research where it scans and analyzes large market reports or earnings data.
Healthcare for summarizing clinical notes and patient histories with strict data handling protocols.
How Does Kimi AI Enable Agentic Automation?
Kimi AI is designed to function as an Open Agentic Intelligence (K2) system. It can:
- Autonomously break down tasks into subtasks.
- Invoke external tools or APIs to fetch or process data.
- Use memory to iterate on tasks until completion—just like a human agent.
Example: Instead of just generating an email, Kimi can draft, refine, attach relevant documents, and schedule it to be sent.
How Does Kimi AI Perform on Benchmarks?
Kimi AI ranks highly on several public NLP and reasoning benchmarks:
- MMLU, HumanEval, and GSM8K: Kimi K2 achieves top-tier results comparable to GPT-4 and Claude 3.
- Multimodal Benchmarks: It handles image-to-text reasoning on par with state-of-the-art multimodal models.
- Its code interpretation and document QA capabilities have received strong reviews from academic and developer communities.
What Are the Limitations of Kimi AI?
Despite its strengths, Kimi AI has a few known limitations:
- Limited Tool Integration in public versions compared to private enterprise access.
- Chinese-first Optimization (due to Moonshot’s roots), so certain Western datasets may perform better in other LLMs.
- Memory Persistence and long-term task chaining are still evolving.
- Limited English community documentation compared to tools like OpenAI or Anthropic.
What Are the Future Plans for Kimi AI?
Moonshot AI has ambitious goals for Kimi, including:
- Expanding Developer Access via a public API and agentic SDKs.
- Full Multilingual Support with enhanced cultural context awareness.
- Open Tool Plugin Ecosystem to allow third-party integrations.
- On-Device Kimi Models for privacy-focused edge applications.
- Further development of Kimi K2, a flagship Open Agentic Intelligence model designed for enterprise-grade autonomous AI.
Kimi K2 Is Here to Redefine Intelligence
Embrace the future of autonomous problem-solving with cutting-edge agentic AI.