Moonshot AI
AI company behind Kimi, developing advanced multimodal models for coding, research, reasoning, and complex knowledge work.
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What is Moonshot AI?
Moonshot AI is an artificial intelligence company focused on developing advanced AI models and technologies toward artificial general intelligence. Its best-known product is Kimi, an AI assistant and model platform designed for long-context reasoning, coding, research, knowledge work, and complex problem solving. Moonshot’s current flagship, Kimi K3, is a natively multimodal model with 2.8 trillion parameters and a 1 million-token context window. The company also provides API access for developers and shares AI research with the open-source community.
Key features
- Kimi AI assistant
- Kimi K3 model
- 2.8 trillion parameters
- 1 million-token context window
- Native multimodal AI
- Long-context reasoning
- AI coding
- Deep research
- Knowledge work
- Document analysis
- AI writing
- Complex problem solving
How you can use it
Moonshot AI and Kimi can be used for AI research, coding, document analysis, content creation, long-form writing, data analysis, web research, knowledge work, presentations, spreadsheets, complex reasoning, and multi-step tasks. Developers can also access Moonshot's models through its API to build AI-powered applications and agents.
Plans & pricing
Kimi provides free access with usage limits, while paid membership plans provide higher usage allowances and access to advanced capabilities. As of September 2026, Moonshot has temporarily paused new Kimi memberships because of the high compute requirements of Kimi K3 and capacity constraints. API access remains available separately on a pay-as-you-go basis. Membership and API billing are separate products.
The strengths & trade-offs
Pros
- Very large context window
- Advanced reasoning capabilities
- Strong coding capabilities
- Native multimodal model
- Useful for long documents
- AI research capabilities
- Web search support
- Agent capabilities
Cons
- High compute requirements
- Paid plans have usage limits
- Membership availability can change
- K3 can require significant resources
- API usage is separately billed
- Some advanced features may have regional availability differences
- Large models can be slower during periods of high demand
Alternatives
Frequently asked questions
What is Moonshot AI?
Moonshot AI is an artificial intelligence company developing advanced AI models and technologies toward AGI.
What is Kimi?
Kimi is Moonshot AI's AI assistant and model platform for tasks such as coding, research, reasoning, and knowledge work.
What is Kimi K3?
Kimi K3 is Moonshot AI's flagship model with 2.8 trillion parameters and a 1 million-token context window.
Is Moonshot AI free?
Kimi provides free access with usage limitations, while paid membership and API options provide additional usage.
Does Moonshot AI have an API?
Yes. Developers can access Moonshot/Kimi models through the API with separate pay-as-you-go billing.
Does Kimi support long documents?
Yes. Kimi K3's 1-million-token context window is designed for processing very large amounts of context.
Can Kimi help with coding?
Yes. Moonshot describes Kimi K3 as being designed for long-horizon coding and knowledge work.
Does Kimi support web search?
Yes. Moonshot provides web-search capabilities for Kimi, including its newer Formula-based search mechanism.
Can Kimi create files and presentations?
Yes. Kimi's current platform is designed to handle knowledge-work tasks including documents, spreadsheets, and presentations.
Is Moonshot AI open source?
Moonshot AI shares research and some models with the open-source community, but the company and its entire product ecosystem are not fully open source.