The best way to use
Kimi on your Mac
Fello AI is a native Mac app giving you Kimi K3 through secure US-based infrastructure, plus every other frontier model in one place. No browser tabs, no data concerns.
Fello AI is a native Mac app giving you Kimi K3 through secure US-based infrastructure, plus every other frontier model in one place. No browser tabs, no data concerns.
Kimi is the AI made by Moonshot AI, a Beijing lab founded in 2023 by Tsinghua University alumni and backed by Alibaba and Tencent. In just a few years it has grown from a startup into one of the most talked-about names in AI, and its models have become the strongest widely-known systems to come out of China. "Kimi" is the consumer brand people chat with; the underlying models are the K-series, and the current flagship is Kimi K3.
Kimi K3 is billed as the largest open-weight model ever built, a multi-trillion-parameter Mixture-of-Experts system with a 1-million-token context window, native vision, and always-on reasoning by default. Because the weights are open, anyone can download and self-host it, which is what makes Kimi genuinely different from the closed models at OpenAI and Anthropic. On independent leaderboards it competes with the top US labs, especially on agentic tool-use, very long context, and front-end coding.
For everyday work, that translates into a model that can hold an entire codebase or a stack of documents in its head at once, chain tools together to complete multi-step tasks, and read images alongside text. If you need an AI for long-context analysis, agentic automation, or hands-on coding, Kimi K3 is a genuine frontier-level option, and it is free to try.
Kimi vs Kimi K3: Kimi is the app and brand from Moonshot AI. K3 is the current flagship model in its K-series, alongside specialized variants for agentic and reasoning work. In Fello AI, Kimi queries are routed through secure US-based servers, not through Moonshot's own infrastructure.
A native Mac app (30-50MB, Apple silicon) that gives you Kimi K3 alongside Claude Opus 5, GPT-5.6, Gemini 3.6 Flash, Grok 4.5, Perplexity, and more. One subscription at $9.99/month. Works on Mac, iPhone, and iPad. Free tier available. Your queries are routed through a secure US-based pipeline, not Moonshot's own servers in China.
Chat with Kimi for free (with usage limits) at kimi.com in any browser. Moonshot does ship an official Mac app called Kimi Work, but it is a heavy autonomous-agent product with paid tiers (roughly $19–$199/month), not a lightweight chat client. Important caveat: both the website and Kimi Work route your conversations to Moonshot's servers in China, which is worth considering if you handle sensitive or confidential information.
Developers can access Kimi K3 directly through Moonshot's API, which is OpenAI-compatible and drops into existing setups. Because Kimi K3's open weights are released under the Kimi K3 License, the model is also available on Hugging Face for local self-hosting, letting privacy-sensitive users run it entirely on their own hardware, though the full multi-trillion-parameter model requires serious infrastructure.
Kimi is one of the best open models, but using it yourself means a huge download, expensive hardware, and a lot of setup. Fello AI gives you Kimi instantly on your Mac, next to Claude, ChatGPT, and Gemini. You can also generate AI images and turn any answer into a real PowerPoint, Excel, or Word file.
| Feature | Fello AI | Kimi (kimi.com) |
|---|---|---|
| Price | Free tier + $9.99/mo or $79.99/yr | Free tier + from $19/mo (Kimi Work) |
| Access to Kimi K3 | ✓ Yes | ✓ Yes (limited free tier) |
| Native Mac app | ✓ macOS 12+, Intel + Apple silicon | Kimi Work app exists, but it's a paid agent (macOS / Apple silicon) |
| Data privacy | ✓ US-based infrastructure | ✗ Servers in China |
| Models available | ✓ Kimi K3, Claude 5, GPT-5.6, Gemini 3.6, Grok 4.5 and more | ✗ Kimi only |
| Image generation | ✓ GPT Image 2, Nano Banana 2, Seedream 5, FLUX.2 | ✗ No |
| PDF support | ✓ Up to 16 PDFs at once | Limited |
| iPhone and iPad | ✓ Yes, same app | Browser only |
Kimi K3 is a multi-trillion-parameter Mixture-of-Experts model released under the Kimi K3 License, billed as the largest open-weight model ever made public. Unlike the closed systems at OpenAI and Anthropic, anyone can download its weights, inspect how it works, and run it on their own hardware.
Kimi K3 handles a 1-million-token context window, so it can hold an entire codebase, a long research corpus, or a stack of documents in a single session without losing the thread. It is also natively multimodal, reading images alongside text rather than bolting vision on as an afterthought.
With always-on reasoning by default, Kimi K3 is one of the strongest models for agentic tool-use (chaining steps together to complete real tasks), and for general and front-end coding. On independent leaderboards it competes with the top US labs, making it a genuine frontier-level option.
Using Kimi through its own website or the Kimi Work app sends your conversations to Moonshot's servers in China. In Fello AI, your Kimi queries go through US-based infrastructure instead, which means your data never touches Moonshot's own servers.
The AI landscape in 2026 is competitive at the frontier level. ChatGPT leads in computer-use automation, Claude 5 excels at writing and complex analysis, and Gemini holds the context-length record. Where does Kimi K3 actually stand?
Kimi K3 is a frontier-level open-weight model that stands out on long-context agentic work, chaining tools across a 1-million-token window, with native vision and open weights anyone can self-host. For developers and teams doing long-context or automation-heavy work, it is a genuinely compelling alternative to closed models.
ChatGPT is the established standard. Kimi is the open long-context one.
ChatGPT powered by GPT-5.6 is the strongest model for computer-use tasks. It can operate software, navigate interfaces, and complete multi-step desktop workflows autonomously. It is also backed by OpenAI's fully managed infrastructure, extensive ecosystem integrations, and consistent production reliability.
Kimi K3 is fully open-weight and built for long-context agentic work. Its 1-million-token window, native vision, and tool-use make it excellent for reasoning across huge inputs, and for teams that want to inspect, audit, or self-host the model weights, Kimi is a frontier-level option that allows it.
Use ChatGPT for computer-use tasks, ecosystem integrations, and production reliability. Use Kimi when long context, agentic tool-use, or open-weight access matter.
Claude is the quality benchmark. Kimi is the long-context one.
Claude 5 is the best model available for writing quality and following complex instructions. It produces the most natural, well-structured output of any major model, maintains consistency across very long documents, and is significantly more reliable at detailed multi-part tasks without drift.
Kimi K3 competes closely on agentic tasks and coding, and its 1-million-token context lets it reason over far larger inputs in a single pass. It is also open-weight and natively multimodal. What it does not match is Claude's quality on nuanced writing and instruction-following tasks.
Use Claude 5 for writing quality, structured analysis, and complex instruction-following. Use Kimi for long-context agentic work where open-weight access is preferred.
Gemini has Google's reach. Kimi runs open.
Gemini 3.6 Flash matches Kimi on context length (over 1 million tokens) and adds deep Google ecosystem integration. It pairs its large window with native Google Search grounding for real-time factual access, and understands images, audio, and video natively.
Kimi K3 also handles a 1-million-token window and native vision, but it is open-weight and self-hostable, which Gemini is not. It is especially strong on agentic tool-use and coding. For organizations that cannot send data to Google's servers, it is a viable large-context alternative they can run themselves.
Use Gemini for Google integrations and multimodal inputs across a huge window. Use Kimi for long-context agentic work where open-weight access matters.
Grok is real-time. Kimi is long-context.
Grok 4.5 is built around real-time information. It indexes X and the broader web live, making it the best model for breaking news, current sentiment, and anything time-sensitive. It is also more openly opinionated and willing to engage with edgy or controversial topics.
Kimi K3 is stronger on structured, long-context work and is fully open-weight. For agentic automation, coding, or reasoning across huge inputs without a real-time data requirement, Kimi is the more capable and self-hostable choice.
Use Grok for real-time information, live X data, and brainstorming. Use Kimi for long-context agentic tasks where open-weight access matters.
Perplexity retrieves. Kimi builds.
Perplexity is a search-first tool. It retrieves and summarizes information from the web with citations, making it the best option when you want sourced answers quickly without doing manual research.
Kimi K3 is a general-purpose reasoning model built for long-context agentic work. It does not have native web search as a core feature, but it is significantly better at coding, tool-use, native vision, and reasoning over huge inputs. These are complementary tools, not competing ones.
Use Perplexity to find and verify facts from the web. Use Kimi to reason, code, and build with that information across a long context.
No single model is best at everything. Kimi leads on long context, agentic tool-use, and open weights, but Claude writes better, ChatGPT handles computer use, and Grok has live data. The most capable AI setups use multiple models routed to the right task. And through Fello AI, your Kimi queries run through US-based infrastructure, so your data never touches Moonshot's own servers. Fello AI puts Kimi, ChatGPT, Claude, Gemini, Grok, and Perplexity in one native app.
| Metric | Kimi K3 | GPT-5.6 | Claude 5 | Gemini 3.6 Flash |
|---|---|---|---|---|
| Reasoning | Excellent | Excellent | Excellent | Very good |
| Coding | Top tier | Top tier | Top tier | Very good |
| Context window | 1M tokens | 1M tokens | 1M tokens | 1M tokens |
| Multimodal / vision | Yes, native | Yes | Yes | Yes, native |
| Open source weights | ✓ Yes | ✗ No | ✗ No | ✗ No |
| Best for | Long context, agentic tasks, coding | All-round work, operators | Long-form writing, docs | Speed, large docs, research |
Different models are better at different kinds of work. In Fello AI, you switch between ChatGPT, Claude, Gemini, Grok, and more without leaving the app or rebuilding your workflow. Compare outputs, move faster, and use the model that fits instead of forcing everything through one tool.

Upload PDFs, images, Excel sheets, slide decks, and documents, then ask for summaries, explanations, rewrites, or extracted insights. This makes Fello AI much more useful for study, research, reporting, and day-to-day professional tasks than a plain text chatbot.

Generate PowerPoint presentations, Excel spreadsheets with formulas, Word documents, and PDFs, then download and use them immediately. That turns AI from a brainstorming tool into something much closer to a real productivity workspace.

When you need current information, Fello AI searches the web with cited sources instead of forcing you to leave the app and manually piece things together. Especially useful when researching a topic, checking facts, or turning fresh information into a finished document.

Fello AI is native on all Apple devices, so you keep the same app, the same models, and the same workflow whether you're on your Mac at a desk or on your phone on the go. No separate setup, no switching tools, no restarting the context.
Fello AI gives professionals a practical way to use ChatGPT, Claude, Gemini, Grok, and other top models across Mac, iPhone, and iPad as part of one consistent workflow. Analyze PDFs, Word files, Excel sheets, presentations, and images, then turn the result into real downloadable documents for client work, internal workflows, and day-to-day execution.
Fello AI helps students handle everyday academic work more efficiently. Summarize readings, explain difficult topics, compare answers across models, and work with PDFs, slides, notes, and study materials in one place. Instead of relying on a single AI answer, use the model that fits the task and move from quick explanations to deeper research without jumping between apps.
Download Fello AI for Mac, iPhone, and iPad. Free to start.
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