How to Join Muse AI: Sign Up for Meta’s AI Agent (Early Access Guide)

Searches for “how to join Muse AI” have exploded in recent weeks, and it is easy to see why. Muse is Meta’s new personal AI agent — the product behind the growing buzz around muse.ai — and unlike the AI chatbots you may already use, it is designed to actually get things done for you across the apps you already use, including WhatsApp. There is just one catch: Muse is not sitting in the app store waiting for a one-tap download. Access is currently rolling out through an early-access program, which means you have to join the right way, in the right place.

That is exactly what this guide covers. Below, you will find out what Muse AI actually is, the exact step-by-step process to sign up at muse.ai/join, how referral codes work (including ours, if you want to use it), how Muse compares with ChatGPT and Gemini, and what to do while you wait for your access to come through. If you follow the steps in order, the whole sign-up takes only a few minutes.

What Is Muse AI?

Muse is Meta’s personal AI assistant — more precisely, a personal AI agent. That word matters. A regular chatbot answers questions and generates text inside a single conversation. An agent goes a step further: it can work through multi-step tasks on your behalf, keep track of what you asked for, and use connected services to complete real jobs, not just talk about them.

In practical terms, Muse is built to help with the everyday workload that eats up your time: researching a topic and summarizing what matters, drafting and polishing writing, planning projects and trips, setting and managing reminders, creating content, and handling routine tasks through the services you connect to it. Instead of opening five different apps, you describe what you need and let the agent coordinate the work.

One of Muse’s most distinctive features is where it lives. Muse works across chat and messaging apps — including WhatsApp — rather than forcing you into yet another standalone app for everything. That means the same assistant that helps you plan your week can be reached from the messaging app you already open dozens of times a day. If you want the full background before signing up, our explainer on what Muse AI is and how it works goes deeper into the concept.

Because Muse is still in early access at the time of writing, Meta is letting people in gradually rather than opening the doors to everyone at once. That staged rollout is why you will see a join flow and possibly a waitlist instead of instant access — and why joining correctly matters.

How to Join Muse AI — Step by Step

The sign-up process is straightforward, but there are a couple of points where people get stuck — mainly around referral codes and knowing what happens after you submit the form. Here is the complete process from start to finish.

1. Go to the official join page. Open your browser and visit muse.ai/join. This is the only page you need — there is no separate app download required to register your interest, and you should be wary of third-party sites claiming to offer Muse sign-ups or “premium” invite codes for a fee. Legitimate access starts at muse.ai.
2. Sign in with your account. You will be asked to sign in, typically with a Meta account or a Google account. Use an account you check regularly, because this is the identity your early-access invitation and account notifications will be tied to. If you plan to use Muse inside WhatsApp later, it also helps to sign in with the account associated with your everyday profile.
3. Complete the early-access join form. Fill in the details the form asks for and submit it. This registers you in the early-access program. Take a moment to answer accurately — staged rollouts often prioritize people whose details are complete and consistent.
4. Enter a referral code if you have one. If an existing Muse member has shared a referral or invite code with you, enter it during the join process when prompted. Our referral code is 1AR2WH, and you are welcome to use it. A referral is not required to join — you can register without one — but if you have a code, the time to use it is during sign-up, not after the fact.
5. Watch your email and the app for your access. Early access is granted in waves, so do not be surprised if you do not get in the second you submit the form. Keep an eye on the inbox of the account you signed in with (including the spam and promotions folders) and on notifications from Meta’s apps. When your access is activated, you will be able to sign in to Muse and start using it right away.

That is the entire process. No payment is required to join the early-access program, and anyone telling you otherwise is not describing the official route. If you are still waiting after submitting, skip ahead to the tips section below — there are a few simple things that can improve your chances and make the wait shorter.

Muse AI vs ChatGPT vs Gemini

The obvious question once you hear about Muse is how it stacks up against the two AI assistants most people already know: OpenAI’s ChatGPT and Google’s Gemini. The honest answer is that they overlap, but they are built around different centers of gravity. ChatGPT is a general-purpose chatbot and writing/coding partner. Gemini is Google’s assistant, deeply tied into Google’s ecosystem. Muse is Meta’s attempt at a personal agent — an assistant that lives in your messaging apps and works through tasks using connected services.

Which one should you use? They are not mutually exclusive, and many people will end up using more than one. But if your biggest frustration with AI chatbots is that they advise more than they do — and you live in your messaging apps — Muse’s agent-first, messaging-first approach is precisely what makes it different, and precisely why so many people are trying to get into the early-access program right now.

What You Can Do With Muse Once You’re In

Getting access is only the beginning. Based on what Muse is built for, here are the kinds of jobs new members typically hand it first:

• Research without the tab chaos. Ask Muse to research a topic — a purchase, a destination, a business question — and pull together the key points instead of you juggling twenty open tabs.
• Writing and content help. Draft emails, posts, scripts and documents, or hand Muse a rough draft and let it tighten the structure and wording.
• Planning of every kind. Trips, projects, events, study schedules, content calendars — Muse can build the plan, break it into steps, and keep track of the pieces.
• Reminders that actually happen. Set reminders in natural language and let the agent keep watch, so follow-ups stop depending on your memory.
• Everyday tasks through connected services. As you connect the services you use, Muse can fold them into its work, turning one request into a completed sequence instead of a single chat reply.
• Help inside WhatsApp. Because Muse works in messaging apps, you can ask for help right where your conversations already happen — we walk through the setup in our guide on how to use Muse on WhatsApp.

The pattern to notice is that Muse’s value compounds the more real work you give it. Start with one recurring annoyance — inbox drafts, weekly planning, research summaries — and expand from there once you see how the agent handles it.

Tips to Get the Most Out of Early Access

Early access cuts both ways: you get in before the crowd, but the product is still evolving. These tips will help you join smoothly and get real value from day one.

• Use a referral code at sign-up, not later. If you have a code — ours is 1AR2WH — enter it during the join process at muse.ai/join. Do not assume you can always add one retroactively.
• Sign in with an account you actually monitor. Your access notification goes to the account you joined with. A dusty inbox you never open is the easiest way to miss your own invitation.
• Check spam and promotions folders. Early-access emails from large platforms routinely land in the wrong tab. If you are waiting, search your inbox for “Muse” before assuming nothing arrived.
• Be patient with the waitlist. Staged rollouts are normal for a launch of this scale. Joining once, correctly, beats submitting multiple times with different accounts, which helps no one — least of all you.
• Learn the features while you wait. Our roundup of Muse tips and tricks will help you hit the ground running the moment your access activates.
• Understand the privacy picture early. Agents work with your information by design, so it pays to know what Muse can see and how your data is handled. Our Muse privacy explainer breaks it down in plain language.
• Give Muse a finish line. Vague requests get vague results. “Plan my trip” is a wish; “find three flight options under my budget for these dates and hold the best one for my approval” is a task. Specific goals, constraints and approval points make the agent dramatically more useful.

Frequently Asked Questions

Is Muse AI free?

Joining the early-access program at muse.ai/join is free — you do not pay anything to register or to be considered for access. During early access, Meta has focused on rolling the product out gradually rather than publishing a finished pricing structure, so if you see anyone selling Muse access or charging for invite codes, treat it as a red flag. If and when paid tiers are formally announced, they will come from Meta through official channels.

Is Muse available in my country?

Availability during early access is limited and expands in stages, so the honest answer is: it depends on where you live, and the list of supported regions grows over time. The fastest way to find out is to go through the join flow at muse.ai/join with your own account — the form will reflect whether your region is currently eligible. If it is not yet, joining the waitlist still puts you in line for when your country opens up.

Do I need a referral code to join Muse?

No. A referral code is not required — anyone can start the sign-up at muse.ai/join without one. That said, if an existing member has shared a code with you, entering it during the join process is the intended way to connect your sign-up to their referral. Our code is 1AR2WH, and you are welcome to use it when you join.

Is Muse the same as Meta AI?

No — they are related products from the same company, but they are not the same thing. Meta AI is the assistant built into Meta’s apps, designed mainly for questions, chat and quick help inside those apps. Muse is Meta’s separate personal AI agent product, accessed through muse.ai, built to take on multi-step tasks for you across chat and messaging apps using connected services. Think of Meta AI as the assistant you talk to, and Muse as the agent you delegate to.

Can I use Muse on WhatsApp?

Yes. One of Muse’s defining features is that it works across chat and messaging apps, including WhatsApp, so you can interact with your agent in the app you already use for everyday conversation rather than switching to a separate interface for every request. Once your early access is active, our step-by-step guide on using Muse on WhatsApp shows you how to make the most of it.

Why am I on a waitlist?

Because early access is deliberately staged. Meta is activating accounts in waves rather than all at once, which is standard practice for a major AI launch: it keeps the service stable, lets the team fix issues with smaller groups first, and prioritizes a good experience over raw speed. Being on the waitlist does not mean anything is wrong with your sign-up — it means your wave has not been activated yet. Make sure you completed the join form fully, used any referral code during sign-up, and keep an eye on the inbox tied to your account.

Disclosure: 1AR2WH is this site’s referral code — when you join with it, both you and the referrer receive 1 billion tokens.