Moonshot AI is the company behind Kimi, an AI assistant designed for questions, writing, research, document analysis, coding, and increasingly autonomous computer-based tasks. Ordinary users can access Kimi on the web, through mobile apps, or with Windows and macOS software. A free tier is available, while paid memberships provide more credits and access to additional models, tools, and features. Moonshot AI also operates Kimi Platform, a separate usage-billed developer service.
What is Moonshot AI?
Moonshot AI is an artificial intelligence company founded in 2023. Its best-known product is Kimi, an AI assistant for conversation, research, document work, coding, and agent-style tasks. The company also provides desktop and mobile applications, browser tools, creative features, and a developer platform.
For most people, the practical way to try Moonshot AI is through Kimi. You can ask it questions, request explanations, rewrite text, summarize files, investigate a topic, generate documents or presentations, and work through multi-step tasks. Kimi is particularly focused on handling long prompts and large collections of information, which makes it useful when a task involves several documents or a lengthy source.
Moonshot AI is based in China, and Kimi is available through the web, iOS, Android, HarmonyOS, Windows, and macOS. Some features, payment methods, quotas, and models can vary by region and account.
What can an ordinary user use Kimi for?
Kimi is intended to be more than a basic question-and-answer chatbot. Its features cover everyday writing, study, research, files, media, and work tasks.
Questions, writing, and study
- Ask for explanations of unfamiliar subjects in simpler language.
- Draft emails, reports, outlines, articles, notes, and other written material.
- Rewrite text for a different tone, length, or audience.
- Translate or compare information in Chinese and English.
- Create study notes, summaries, question sets, and structured revision material.
- Brainstorm ideas and turn rough instructions into a more organized plan.
As with any generative AI system, the output should be checked when accuracy matters. Kimi can produce a confident but incorrect answer, particularly when a question depends on incomplete or changing information.
Research and web-assisted work
Kimi includes web-connected search and deep-research features. Web search helps it look for relevant online information while answering a question. Deep research is intended for more involved investigations in which the system gathers and organizes information across multiple sources.
For example, a user might ask Kimi to compare software options, summarize recent developments, collect background information about a subject, or create a briefing from online sources. Browser-related functions can also support workflows that involve visiting or operating websites. Search results and generated summaries should still be checked against the original sources, especially for medical, legal, financial, or time-sensitive decisions.
Documents, files, and spreadsheets
Kimi supports file uploads and file analysis. You can use it to summarize a long document, identify key points, compare files, extract information, or ask questions about material you provide. The ecosystem also includes tools for document and spreadsheet workflows.
These features are useful for tasks such as reviewing a report, turning meeting notes into action items, examining a dataset, or finding a particular detail in a large collection of files. The exact file limits and available tools depend on the account, plan, feature, and current product version.
Coding and technical tasks
Kimi can write, explain, review, and modify code. It also offers coding-focused products and tools, including Kimi Code. Some workflows can use Python or JavaScript execution, allowing Kimi to perform supported calculations or process information rather than only describing the steps.
Beginners can ask for an explanation of an error or a small script. More experienced users can use it to explore an unfamiliar codebase, generate a first implementation, or automate parts of a technical workflow. Code produced by an AI assistant needs testing and review before it is used in a real application.
Presentations, websites, and creative media
Kimi includes tools for generating presentations and websites, and supported creative plugins can create images, video, and audio. These features may be useful for producing a first draft of a presentation, developing a visual concept, preparing marketing material, or experimenting with multimedia ideas.
Creative and agent features may depend on plugins, membership credits, or a particular plan. They should not be assumed to be included without limits in the free experience.
Is Moonshot AI free?
Yes. Moonshot AI provides free access to its Kimi consumer service. The free experience allows users to try Kimi without immediately purchasing a membership, although the exact quota, model access, and feature availability can change by region, account, and product version.
Kimi also has paid consumer memberships named Andante, Moderato, Allegretto, and Allegro. These plans use shared usage credits. In practical terms, a paid plan generally provides a larger allowance or access to more demanding models and functions, but the value of a plan depends on which tools you use and how quickly you consume credits. Current prices and quotas should be checked on Kimi's membership page rather than assumed from an older comparison.
Membership credits are not the same as developer API billing. A Kimi consumer subscription is for using the consumer products, while Kimi Platform charges developers according to their API usage.
What free users should expect
The free option is most suitable for trying ordinary conversations, writing assistance, questions, and selected Kimi features. It may be enough for occasional users who do not need large quotas or premium tools. Users who frequently perform deep research, process many files, run agent workflows, or use creative functions may encounter credit or feature restrictions sooner.
Moonshot AI does not present one permanent, universal quota for every user in the supplied product information. Access can change as models, plans, plugins, and regional availability change, so the account interface is the most reliable place to confirm what is included.
How to start using Moonshot AI
- Open Kimi through its official website or install the official app for iOS, Android, HarmonyOS, Windows, or macOS.
- Create or sign in to an account. An account is required for the consumer service.
- Start with a simple question or task, such as asking for a summary, outline, explanation, or rewrite.
- Upload a supported document when you need help analyzing a file.
- Use search, research, coding, memory, agent, or creative tools when the task calls for them.
When asking for better results, give Kimi the goal, relevant context, desired format, and important constraints. For example, instead of asking it to “summarize this,” specify the intended audience, preferred length, and whether you want action items or unanswered questions included.
Important capabilities in the Kimi ecosystem
The Kimi ecosystem includes several related products rather than one single chat window.
- Kimi Chat: the general consumer assistant for questions, writing, research, files, and everyday tasks.
- Kimi Work: a work-oriented environment with requirements that can differ from basic Kimi Chat.
- Kimi Code: coding-focused tools for software development tasks.
- Kimi Browser Extension: browser-assisted access and workflows.
- Kimi Claw: an agent-oriented product in the wider Kimi ecosystem.
- Kimi Platform: Moonshot AI's developer service for integrating Kimi models and tools into applications.
Kimi supports memory, which can help it retain relevant information for later interactions, subject to the product's controls and privacy settings. It also supports multimodal work, meaning it can work with more than plain text, including supported images and files. Some advanced models and current product materials describe very large context windows, allowing the system to work with substantial amounts of information in one task. Availability and limits are product-dependent.
Privacy and data-use considerations
Privacy is an important consideration before uploading sensitive material. Moonshot AI states that consumer Kimi data is stored in a secure environment in mainland China and protected with encryption and access controls. Its consumer policy says that de-identified user inputs, instructions, and generated responses may be used to train models and improve the service.
Consumer users can request an account-level training opt-out through customer support. The supplied information says that registration of the request takes approximately five to seven working days after identity verification. Per-conversation and per-file training opt-outs are not currently supported. Consumer data may therefore be unsuitable for organizations with strict rules about location, retention, or model training unless an appropriate enterprise arrangement is in place.
The Kimi API has a separate policy. Moonshot AI states that API inputs and outputs are not used to train or improve Kimi models and are used to fulfill the API request. This policy does not automatically apply to ordinary consumer conversations, so users should distinguish carefully between Kimi's consumer products and Kimi Platform.
Kimi Platform for developers
Developers can access Moonshot AI models through Kimi Platform, a separate usage-based service. It provides an OpenAI-compatible chat-completions-style interface, which means developers familiar with that common format may be able to adapt existing applications by changing the service configuration. The platform also presents dedicated model and tool interfaces.
Developer capabilities include text and vision models, reasoning and non-reasoning modes, tool calling, web search, memory, file and spreadsheet analysis, Python and JavaScript execution, URL fetching, context caching, and agentic coding workflows. Billing is based on tokens, meaning the amount of text processed as input and output, with pricing varying by model and feature. Web search, tools, and cached context can have separate charges.
The platform's model catalog and pricing change over time. Current materials identify offerings such as K3, K2.7 Code, and K2.6, but developers should consult the live documentation before selecting a model or estimating costs. The API is an advanced option and is not necessary for someone who simply wants to chat with Kimi.
Main strengths and limitations
Strengths
- Long-context work: Kimi is designed to handle lengthy prompts and substantial documents, making it useful for research and file-based tasks.
- Broad workflow coverage: The ecosystem combines chat, search, research, files, coding, browser activity, agents, presentations, websites, and creative plugins.
- Chinese and English use: It is positioned for Chinese and English knowledge work and can be useful for bilingual tasks.
- Multiple access options: Users can choose the web, mobile apps, or desktop software.
- Separate developer access: Kimi Platform offers API access, tools, and usage-based billing for applications.
Limitations
- Credits and quotas: Access to models, agents, creative functions, and other advanced capabilities depends on membership credits, plan level, plugins, or usage limits.
- Changing availability: Features, pricing, model names, and regional access can change, so older guides may no longer be accurate.
- Consumer data policy: Consumer data may be used in de-identified form for training unless an account-level opt-out is requested.
- Data location: Consumer data is stored in mainland China, which may not meet every organization's residency or compliance requirements.
- Verification remains necessary: Search, research, generated documents, code, and media can contain mistakes or require editing.
Who should consider Moonshot AI?
Moonshot AI is a good candidate for people who want one ecosystem for long-document analysis, research, bilingual writing, coding assistance, browser-supported tasks, and experimental agent or media features. It is especially worth considering if you regularly work with substantial files or want tools that go beyond a conventional text chatbot.
The free tier makes it practical to test the basic experience before paying. Occasional users may find free access sufficient, while frequent users should compare the credit allowances and feature restrictions of the current memberships.
An alternative may make more sense for users who require consumer data to stay outside mainland China, need a clearly defined enterprise privacy arrangement, want fully predictable quotas, or prefer a simpler product with fewer tools. Users making high-stakes decisions should also choose a service and workflow with suitable verification, compliance, and human review.
Practical assessment: Moonshot AI's strongest reasons to choose it are Kimi's long-context document work, research features, broad tool ecosystem, and separate developer platform. Its most important drawbacks are changing quotas and feature access, dependence on credits and plugins, consumer training settings, and mainland-China data storage. It is best approached as a broad AI work environment rather than just a chatbot, and competing products may be a better fit when privacy location, predictable limits, or specialized enterprise controls matter more than breadth.