What is the difference in one sentence?
Meta AI answers questions. Muse does tasks. Meta AI is the chatbot built into Facebook, Instagram, WhatsApp, Messenger, and Threads, plus its own app and website. Muse is a separate personal agent with its own app that connects to your accounts and carries work across them, from email and calendars to bookings and purchases.
Both products run on the same model family, Muse Spark, which is exactly why people mix them up. Sharing a model does not make them the same product. The model is the brain. The products around it are different: one chats, the other acts. As one comparison puts it, Meta AI tells you things, and Muse does things.
Meta's own branding has three layers that share a word, and keeping them apart clears up most of the confusion. Meta AI is the assistant. Muse Spark is the model. Muse is the agent. When Meta says Meta AI is now powered by Muse Spark, the chatbot got a better brain. It did not become the agent.
What is Meta AI?
Meta AI is the assistant Meta has shipped inside its apps since September 2023. You meet it as the blue circle in Instagram and WhatsApp, as a chat inside Facebook and Messenger, on the meta.ai website, in the Meta AI app, and on Ray-Ban Meta glasses. It answers questions, drafts text, explains topics, summarizes threads, translates, and generates images, all inside apps people already have open.
Meta AI is conversational by design. You ask, it answers, and the exchange stays in the chat. It does not open your inbox, put things on your calendar, or buy anything on your behalf. Some supported task features exist inside the chat, such as plans and recurring briefings, but the job stops at the edge of the conversation. Meta AI hands you an answer and stops.
Availability is the other big difference. Meta AI is available in far more countries than Muse, including the UK and the EU, and it needs no separate sign up inside the apps where it already lives. If you can open WhatsApp or Instagram where you live, Meta AI is most likely already there. Nothing to install, nothing to connect, no invite code, and no age gate beyond the app's own rules.
Since 2026, Meta AI has run on Muse Spark, Meta's model family, so its answers improved noticeably. That upgrade is also the main reason the two products get confused in headlines, as one detailed comparison notes. A smarter Meta AI is still a chatbot. The agent layer, with its own computer, its own permissions, and its own approval flow, belongs to Muse alone.
What is Muse?
Muse is Meta's personal AI agent, launched on September 8, 2026. Meta's Newsroom announcement calls it a secure, private personal AI agent that proactively helps with people's goals and suggests ideas. You tell it what needs to get done, and it takes action: it opens a browser, fills in forms, sends email, books travel, negotiates on your behalf, and keeps working after you close the app.
The machinery around Muse is what makes it an agent rather than a chatbot. Each user gets a dedicated cloud computer Meta calls the Muse Secure VM, with its own browser, where the agent and the person's data live. A separate Sentinel agent runs on the same machine and nothing Muse does reaches the internet unless Sentinel approves it. Muse checks with the person before sensitive actions like sending an email or making a purchase, and it shows a complete audit trail of everything it has done and plans to do.
Muse connects to your real accounts, with your permission and under limits you set. The launch announcement names email, calendar, and shopping, and the connector list has grown since to cover dozens of services, from Gmail and Google Calendar to OpenTable, Ticketmaster, Spotify, and Notion. See the full connector list. You choose which apps Muse connects to and exactly how much access it gets, and you can change access or disconnect a service whenever you want.
Access to Muse is narrower than access to Meta AI. Muse is live in five countries as of November 5, 2026: the US, Canada, Japan, Singapore, and Mexico. It is limited to adults 18 and over, it meters usage in tokens with a free weekly allowance and two paid plans, Power at $20 a month and Maximum at $100 a month, and it has an invite code system where both sides get 1 billion tokens when a code is redeemed within 48 hours of joining. None of that machinery exists for Meta AI, because Meta AI is not an agent that acts on your accounts.
How do Muse and Meta AI compare?
Put side by side, the two products differ on every point that matters for choosing between them:
- The job. Meta AI answers, drafts, explains, and creates. Muse completes tasks: it reads and sends email, books, buys, sells, negotiates, and plans across your connected services.
- Where you find it. Meta AI lives inside Facebook, Instagram, WhatsApp, Messenger, and Threads, plus meta.ai, the Meta AI app, and Ray-Ban Meta glasses. Muse has its own app on iPhone, Android, Mac, and the web at muse.ai, plus a linked chat inside WhatsApp.
- Your accounts. Meta AI works without access to your other accounts. Muse connects to them, with permissions you control, and acts inside them.
- Its own computer. Meta AI has none. Muse runs on a dedicated virtual machine with its own browser, so a task continues after you close the app.
- Approvals. Meta AI has nothing to approve, because it takes no actions in your name. Muse asks before it sends, spends, or publishes, and keeps an audit trail.
- Memory. Both remember things you tell them, but Muse's memory drives action: it can turn a saved recipe reel into a grocery list and remember dietary restrictions before it sends invites.
- Price. Meta AI is built into Meta's apps at no extra cost. Muse is free within a weekly usage limit, with paid plans that buy more usage, not more features.
- Availability. Meta AI is in most countries. Muse is in five countries so far, for adults 18 and over.
- The model underneath. Both run on Muse Spark. Sharing the model does not give the products identical tools, permissions, or interfaces.
That last row is the one to remember when a headline blurs the two. The model is shared. The product is not.
Why do both use the name Muse Spark?
Muse Spark is Meta's model family, announced by Meta Superintelligence Labs as its opening model line. Meta describes it as its most capable model to date, built for real world agentic work. It powers the Muse agent, and it also powers Meta AI. Developers can use it directly through Meta's model API as well.
Think of it the way you would think of an engine. The same engine can sit in a family car and in a delivery van, and nobody would call the two vehicles the same product. Muse Spark is the engine. Meta AI is the chat window wrapped around it. Muse is the agent wrapped around it, with a computer, a browser, connectors, permissions, and an approval loop.
This also clears up a pricing mix up. Muse subscriptions, Meta AI usage limits, and Muse Spark API charges are three different things. A Muse subscription buys usage capacity for the agent. The API charges developers per token for model calls. Meta AI inside social apps carries no subscription at all. If a price you see does not name which of the three it belongs to, treat it with suspicion.
One more name adds to the pile: Muse Image is Meta's image generation model, and it appears inside Instagram and WhatsApp as part of Meta AI's features, not as part of the Muse agent. If you generate an image in a WhatsApp chat, you are using Meta AI and Muse Image, not the Muse agent, even though the word Muse is on the screen.
Why do both show up in WhatsApp?
WhatsApp is where the confusion peaks, because both products genuinely live there, as two separate experiences. Meta AI is the assistant built into WhatsApp: the colored circle you tap to ask a question, summarize a busy thread, or generate an image. It is simply there for anyone in a supported region, with nothing to sign up for and nothing to connect.
Muse in WhatsApp is different. It is a conversation with your Muse agent, reached through a linked chat, and it carries the agent's abilities with it: it can work with your connected accounts and continue tasks in the background. Meta's launch announcement says talking to Muse works just like messaging another person, in the Muse app or directly in WhatsApp, and the Mexico launch on November 5, 2026 included WhatsApp as one of the ways to use Muse.
The WhatsApp version of Muse is not the full app. Coverage notes that it leaves out app only extras such as the feed and the ideas tool. If you want everything Muse offers, the app itself is the complete version, and WhatsApp is the convenient front door.
The practical test is simple. If you are chatting with the built in assistant and it only answers, that is Meta AI. If you are talking to an agent that knows your calendar, reads your email with your permission, and books things for you, that is Muse. Same app on your phone, different product on the other end.
What about AI glasses and other devices?
Glasses are the next confusion point, and the honest answer is that the two products are at different stages there. Meta AI already runs on Ray-Ban Meta glasses, where it answers questions, identifies what the camera sees, and handles hands free requests. That is the chatbot on your face.
Muse on glasses is announced, not fully rolled out. Meta's launch post says Muse is coming soon to AI glasses, and Connect 2026 previewed hands free Muse access with visual context on camera models. Voice conversations with Muse are also described as coming soon to AI glasses and to Muse Charm, the pocket device Meta has announced with no price and no date. Until those rollouts land, glasses mean Meta AI, not Muse.
The same staged pattern holds elsewhere. Muse reached the Apple Watch and Wear OS on November 9, 2026, with text, dictation, voice calls, and a watch face complication, through the Muse app on your phone. The Mac app gives Muse computer access on your own machine, with permission steps of its own. Meta AI has no equivalent: it does not run errands from your wrist or your desktop, because it is not built to act.
When in doubt, ask what the device is doing. If it answers, it is Meta AI. If it acts across your accounts, it is Muse.
Which one should you use?
Use Meta AI when the job is thinking, not doing. Ask it a question, draft a message, summarize a long thread, translate something, or generate an image. It is already inside the apps you open every day, it works in most countries, and it costs nothing extra. For a quick answer, it is the faster tool, because there is nothing to set up.
Use Muse when the job crosses apps and needs doing, not just answering. Plan a trip and book it. Clear an inbox and reply to what matters. Track a bill, negotiate it, and pay it. Run a small business workflow across email, calendar, and a store. Muse's value is the handoff: you describe the outcome, and it takes the steps, asking before anything irreversible.
Where you live may decide for you. Outside the five launch countries, Muse is not an option at all: the app does not appear in your store and sign in is blocked at the account level. Meta AI is the Meta assistant that exists for you today. Inside a launch country, both are available, and the choice is about the job, not about access.
Age matters too. Muse requires users to be 18 or older, with age verification at sign up. Meta AI carries no separate age gate beyond the rules of the app it lives in. A teenager with Instagram has Meta AI. The same teenager cannot sign up for Muse.
Can you use both at the same time?
Yes, and most people in a launch country will. The two products do not conflict, because they do different jobs in different places. Ask Meta AI a question in Instagram, then hand Muse a task in its own app. Neither one needs the other to work, and using one does not set up the other.
Your accounts stay separate in the ways that matter. A Muse account is a Meta account, and signing up for Muse does not change what Meta AI knows about you inside Facebook or WhatsApp. Connecting an app to Muse gives the agent permissioned access to that app. It does not give Meta AI the same access, and chatting with Meta AI does not hand Muse any new permissions.
The one place to stay alert is WhatsApp, where both live side by side. Check which conversation you are in before you share something sensitive. A message to Meta AI is a chat with the built in assistant. A message to your Muse agent can trigger actions in your connected accounts, with approvals along the way. The names on screen look alike. The consequences do not.
If you remember one line from this guide, make it this one: Meta AI answers, Muse acts, and Muse Spark is the model they share. Everything else follows from that.
Get started
If you are in one of the five launch countries and want the agent, not the chatbot, open Muse and start with one small task you can check in seconds, like a reminder or a research question. If you are new to Muse, redeem a free invite code within 48 hours of joining and both you and the person who shared it get 1 billion Muse tokens.
Get a free code from the community pool.
Frequently asked questions
- Is Muse the same as Meta AI?
- No. Meta AI is the chatbot built into Facebook, Instagram, WhatsApp, Messenger, and Threads. Muse is a separate personal agent with its own app that connects to your accounts and carries out tasks. Both run on Meta's Muse Spark model, which is why the names get confused.
- Is Muse just a new name for Meta AI?
- No. Muse is a separate product Meta launched on September 8, 2026, with its own app, its own computer in the cloud, and its own permission system. Meta AI kept its name and its job as the assistant inside Meta's apps, and it runs on the same Muse Spark model.
- What is Muse Spark?
- Muse Spark is Meta's model family, the engine underneath both products. It powers the Muse agent and Meta AI, and developers can use it through Meta's model API. Sharing the model does not make the two products the same, because the tools, permissions, and interfaces around the model are different.
- Can Meta AI do what Muse does?
- Not in the same way. Meta AI answers, drafts, and creates inside the chat, with some supported task features. It does not take a goal and carry it across your connected accounts with its own browser, background work, and approval flow the way Muse does.
- Do I need a separate app for Muse?
- Yes. Muse has its own app on iPhone, Android, Mac, and the web at muse.ai, plus a linked chat inside WhatsApp. Meta AI needs no separate app, because it lives inside Facebook, Instagram, WhatsApp, Messenger, and Threads, as well as its own app and the meta.ai website.
- Is Muse available in my country if Meta AI is?
- Not necessarily. Meta AI is available in far more countries, including the UK and the EU. Muse is live in five countries only: the US, Canada, Japan, Singapore, and Mexico. Meta has announced no date for any other country.
Built with Muse is an independent community project. Not affiliated with or endorsed by Meta.