TL;DR: Muse and Kimi answer different questions. Muse is Meta’s personal AI agent — it does tasks for you, booking, shopping and emailing through its own secure browser, and it is free to start with paid plans at $20 and $100 a month. Kimi, from Moonshot AI, is a chatbot-first assistant with a famously long memory for documents, a genuinely free tier with unlimited basic chat, and paid plans from $19 a month. Pick Muse to get things done; pick Kimi to think through long material for free.
Muse vs Kimi at a glance
| Feature | Muse | Kimi | Edge |
|---|---|---|---|
| What it is | Personal AI agent that completes tasks | AI chatbot with agent and coding modes | Depends on the job |
| Free tier | Free with a weekly token allowance | Free (Adagio) with unlimited basic chat, file uploads and web search; limited agent credits | Kimi |
| Paid plans | Power $20/month; Maximum $100/month | Plus $19/month; Pro $39/month; Max $99/month; Ultra $199/month | Tie at entry |
| Best skill | Doing: shopping, booking, email, forms via its own browser | Reading: long documents and long conversations | — |
| Connectors / tools | Shopify, Expedia, PayPal, Stripe, Slack, Notion, Canva, QuickBooks and more | Web search, file uploads, Agent Swarm and Kimi Code on paid plans | Muse for apps, Kimi for documents |
| Availability | US and Canada; iPhone, Android, web, Mac app, WhatsApp confirmed | Web and apps, broadly available internationally | Kimi |
| Verdict | Best when you want a task finished | Best when you want an answer worked out | Pick per use case below |
Prices checked October 25, 2026. This is a research-based comparison — we reviewed published pricing, features and documentation; no hands-on testing is claimed.
What is the core difference between Muse and Kimi?
Muse, launched by Meta in September 2026, is built to act. You give it a goal — plan a trip, restock a household item, send an email — and it plans the steps and carries them out in its own secure virtual machine with its own browser, asking before sensitive actions. An action log and approval prompts are part of the design, because an agent that touches your accounts needs them.
Kimi is built to converse and reason. Moonshot AI’s assistant is known for holding very long documents and long threads in context, which makes it a strong pick for working through contracts, research papers, codebases and long reports. Its paid tiers add heavier agent features and Kimi Code, but the center of gravity is still the chat itself.
How do the free tiers compare?
This is closer than you might expect. Muse’s free tier carries a weekly token allowance, so casual use costs nothing, but heavy weeks will push you toward Power at $20 a month. Kimi’s free Adagio plan allows unlimited basic chat with file uploads and web search, with only a small allowance of agent credits and no Agent Swarm or Kimi Code. If your main use is asking questions and summarizing documents, Kimi’s free tier goes further. If your main use is getting a job finished, Muse’s free tier does something Kimi’s does not do at all in the same way.
Which is better for getting tasks done?
Muse, and it is not close. Its connector list — shopping, travel, payments and small-business tools such as Shopify, Stripe and QuickBooks — exists so the agent can act inside the services you already use. Kimi can research a purchase and draft a plan; Muse is designed to place the order, with your approval. The trade-offs are real: Muse is US and Canada only for now, there is no native Windows app, and you are trusting Meta with account access, so start with low-risk jobs.
Which is better for long documents and research?
Kimi. Long-context reading is its headline strength, and the free tier already lets you upload files and search the web. Students, researchers and anyone who lives in long PDFs will feel the difference quickly. Muse can research for you as part of a task, but document-deep conversation is not its home turf.
Which should you pick?
- Pick Muse if you want an agent that finishes tasks — booking, buying, emailing, organizing — and you are in the US or Canada and comfortable approving its actions.
- Pick Kimi if you want a free, capable chatbot for long documents, study and drafting, especially outside North America.
- Use both if the split is natural for you: Kimi to think, Muse to do.
Frequently asked questions
Is Muse free?
Yes. Muse has a free tier with a weekly token allowance. The Power plan is $20 a month and Maximum is $100 a month, and paid tiers raise the usage caps.
Is Kimi really free?
Kimi’s Adagio plan is $0 with unlimited basic chat, file uploads and web search. Paid plans from $19 a month add agent credits, Agent Swarm and Kimi Code.
Can Kimi complete tasks like Muse?
Kimi has agent features on paid plans, but Muse is designed around completing tasks end to end — working through its own browser and connected apps, with your approval on sensitive steps.
Where is Muse available?
The US and Canada, on iPhone, Android, the web and a Mac app, with WhatsApp support confirmed. Kimi is available much more widely through the web and its apps.