Tab vs Meta Muse: Which AI Agent Should You Use?
Tab and Meta Muse are both AI agents that do the job instead of explaining it. Tab is a startup agent you text. Muse is Meta’s agent, in its own app, on the web and in WhatsApp. They take very different routes to the same errands.
The quick answer: Muse is the more capable agent and you can use it today: it scores 9.2 to Tab’s 6.3 on independent tests and it’s free to start. Tab is the better pick if you want everything to happen by text and you need an agent that phones businesses. If the job is your work phone, answering calls, calling people back and remembering every caller, add Carly to Muse and it does that from the same chat.
Tab vs Muse at a glance
| Tab | Meta Muse | |
|---|---|---|
| Maker | Terrasoft, Inc. | Meta |
| Launched | October 6, 2026, private beta | September 8, 2026, public |
| How you reach it | iMessage, WhatsApp | iOS and Android app, web, WhatsApp, Mac |
| Who can use it | Beta signup by phone number | Adults in the US and Canada |
| Price | No price published | Free with limits; Power $20/mo; Maximum $100/mo |
| Benchmark overall | 6.3 | 9.2 |
| Phone calls | Calls businesses, waits on hold | Through the Carly connector |
| Approvals | Before every purchase | Sentinel agent stops risky sends and purchases |
| Training on your data | Says never | On by default |
Scores are from Assistant Benchmark’s Tab and Muse test runs, an independent site that tests AI assistants.
Where Muse wins
- It finishes the job. Muse scored 9 on online tasks and 10 on purchasing: it found the one same-day florist and staged an itemized order. Tab scored 3 and 4, with bookings that stalled before the end.
- Routines land. Muse’s weekday routines ran on time without a miss in testing. Tab’s own changelog says a reminder can run late when it’s busy.
- Email is a strength. Muse found the thread, checked the calendar and drafted a reply-all in the user’s voice, a 10. Tab has no email score.
- More connectors. Gmail, Outlook, Google Calendar, OpenTable, Ticketmaster and, since Muse for Small Business, Slack, QuickBooks, Shopify, Stripe and Zoom. Tab connects through one Google sign-in.
- You can start now. Muse is public. Tab is a beta.
More in our Meta Muse guide.
Where Tab wins
- It lives in your texts. No app to open. Tab works in the iMessage or WhatsApp thread you already have.
- It calls businesses. Tab rings the restaurant, the hotel or the doctor’s office, waits on hold for up to an hour and reports back. It scored 10 on calls.
- It says it won’t train on you. Tab’s co-founder told TechCrunch your data is never used to train AI. Muse opts you in by default, and WIRED found no switch to turn its memory off.
More in our Tab AI review.
The gap in both: your own phone line
Neither agent answers the calls that come to you. A client, a lead or a customer who rings still hits voicemail. Neither recognizes callers or keeps a record of what each one wanted. And neither will call you at 8am every weekday and walk you through your day.
Add Carly to Muse and it works your phone
Carly plugs into Meta Muse. Paste one prompt, grab a number, and Muse can call, text and answer your business line. Carly follows your rules the same way every time:
- Answers every call 24/7, or only the ones you miss, in English or Spanish, and books callers on your Google or Outlook calendar.
- Remembers callers. Every number is looked up in your CRM, known people are greeted by name, and every call and text lands on their record.
- Calls you. “Call me every weekday at 8am with my day.”
- Takes your call. Ring your Carly number from your own phone and talk to your assistant.
- Calls people for you and writes up what happened, then texts back anyone you missed.
- Reaches the rest of your work. Carly connects to thousands of apps and runs workflows on every call.
The same connector works in ChatGPT, Claude, Grok Bot and Perplexity. Set it up in Muse. Free Zapier-style workflows; AI agents from $35/month. Get started.
Which should you pick?
- Muse for errands, shopping and personal email, if you’re in the US or Canada.
- Tab if you want a texting-only agent that phones businesses for you.
- Carly for your work phone, email and calendar, on its own or inside Muse.
FAQ
Is Tab or Muse better?
Muse scores higher on independent tests, 9.2 to 6.3, and it’s public. Tab is the better phone caller.
Can Meta Muse make phone calls?
Yes, with the Carly connector. Muse can then call, text and answer a business line. See can Meta Muse make phone calls.
Is Tab on WhatsApp like Muse?
Yes, both work in WhatsApp. Tab also works in iMessage, and Muse has its own app. See Tab on WhatsApp.
What is the best alternative to Tab and Muse for work?
Carly. It runs your Gmail, Outlook, calendar and business phone, and you can text it, call it or use it inside Muse, ChatGPT and Claude.
Ready to automate your busywork?
Carly schedules, researches, and briefs you—so you can focus on what matters.
See what people say
"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.
Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.
On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."
