All comparisons
OpenCharts · Always-on workers
Theo Agent vs Muse
Meta's personal AI agent for everyone, on a secure computer of its own, in the Muse app and WhatsApp
Muse is a personal agent for one person's life: it sells the car, lowers the bill, plans the dinner party, and pays with a card it never sees. Theo Agent is a worker for one person's work: it builds the app, answers the leads, ships the brand, and leaves a receipt, on a computer of its own, with an engine you chose.
By OpenCharts TeamPublished
Theo Agent is OpenCharts' always-on autonomous worker; Meta's Muse is a personal AI agent built for everyone. They share the shape of the category: a dedicated cloud computer with its own browser, work that continues after you close the app, memory of what matters to you, approval before an email is sent or a purchase is made, and a record of what was done. They differ in who they are for. Muse is aimed at one person's life admin, free for most of what people need, reached through the Muse app and WhatsApp, with shopping and payments built in. Theo Agent is aimed at work: you hire several workers, each on a computer of its own, choose the engine each one thinks with from several labs, let autonomy be earned one kind of action at a time, read a receipt for every run, pause rather than bill when credits run out, and reach a worker by its own phone number, email address or a live call. Its deliverables are editable decks, documents, sheets and apps in your workspace, and org-wide rules sit above every worker.
Theo Agent vs Muse✳The verdict✳When to choose✳Feature matrix✳Pricing snapshot✳Migration✳FAQ✳Theo Agent vs Muse✳The verdict✳When to choose✳Feature matrix✳Pricing snapshot✳Migration✳FAQ✳
The verdict
Where each one wins
Theo Agent wins at
- Built for work, not only life admin: several workers on a team, each with its own job, computer, memory and receipts
- A choice of engines from several labs per worker, with cost tiers, or your own provider key, instead of one model with no picker
- Receipts for every run: the engine used, the sources read, the messages sent, the credits spent, and which actions ran on earned trust
- Autonomy that is earned: approve the same kind of action a few times in a row and the worker stops asking for that kind, and only that kind, with deleting never earnable
- Rehearse a change before it ships: replay a worker's own past runs against a new engine, persona or tool set and see what would change, without executing anything
- A worker with its own phone number, email address, and calendar that answers calls and books meetings
- Org-wide approval rules above every worker, and one approval for a multi-step plan with each step marked reversible or not
- Deliverables land as editable decks, documents, sheets, and apps in the same workspace
Muse still wins at
- Free for most of what people need, on iOS, Android and the web, with WhatsApp as a front door
- Shopping built in: checkout with a one-time-use card and purchase protections, including coverage for lost items, price drops and no-fee returns on eligible purchases
- A separate Sentinel agent on the same machine that must approve anything leaving the computer, and a Confidential VM encrypted with a key only you hold, described as coming later this year
- Personal memory for everyday life: it turns a saved reel into a grocery list and remembers a friend's dietary restrictions before it sends the invites
- Negotiating on your behalf: selling a car for more, getting a bill lowered
How they compare
Theo Agent and Muse solve overlapping problems differently. The matrix below makes the trade-offs concrete, and the migration note covers what it takes to switch when you're ready.
When to choose
The right pick for your team
Choose Theo Agent when…
- The job is work: leads to answer, an app to build, a brand to ship, a report every Monday.
- You want to choose, or let Theo choose, which engine a worker thinks with, and see what each run cost.
- You want several workers, each with its own job, its own computer and its own memory, and a team that can approve and audit them.
- You want a worker people can text, email, or call, not only a chat window.
- The output should be a deck, a document, a sheet, or an app you keep editing, not a booking or a purchase.
- You already run OpenCharts and want the worker inside the same plan and workspace.
Choose Muse when…
- You want a personal agent for life admin: travel, bills, shopping, plans with friends.
- You want it free for most things, in WhatsApp or a phone app, with no setup.
- You want it to buy things for you with purchase protection and a card it never sees.
- You want a dedicated computer that a separate safety agent guards, with an encrypted option coming.
Side by side
Feature comparison
Feature
Theo Agent
Muse
Who it is for
A person or a team at work: you hire workers with a job, tools and an approval posture, and an organization can put rules above all of them
One person's everyday life: tasks, goals, shopping, travel and plans, with no setup or technical experience needed
Which model does the work
A Brain policy per worker: let Theo orchestrate across engines from several labs, pick economy, or pin one engine, with per-lane routing for writing, reasoning, vision, and code
One model for every Muse, chosen by the vendor; no engine picker
Where the worker runs
A persistent computer per worker (browser, files, terminal) that sleeps when idle and wakes with its sign-ins intact; a code worker's computer also holds a repository clone. Deliverables it leaves on its desk are saved to your Drive
A dedicated secure computer per person with its own browser, holding the agent, the person's data and the credentials of any connected service
Keeping secrets out of the model
The worker never holds your password or card: at a login, a code or a payment it asks you to step in on its live page, what you type is never recorded or shown to it, and the sign-in survives its restarts
No visibility into passwords or payment methods: credentials go into secure storage it can use without seeing, and payments use a one-time-use card
Approvals
Full autonomy, ask before risky, or ask before everything; one approval covers a whole multi-step plan with reversibility marked; org rules override any worker
Checks with the person before sensitive actions such as sending an email or making a purchase; the person picks how much access each connected app gets, such as reading mail or also sending it
Earning autonomy
Opt a kind of action in and a few consecutive approvals earn it; one rejection resets the streak; deleting is never earnable; every change is announced in the worker's own chat and recorded on its receipts
Not described
Testing a change before it ships
Replay a worker's own past runs against a new configuration and diff what it would do against what it did; nothing is executed, and only lost reach or gained risk counts as a regression
Not offered
Audit trail
A receipt per run naming the engine, the web pages and company knowledge read, the messages sent, the teammates used, and the credits spent
A complete audit trail of everything it has done and plans to do
Spend control
A per-turn credit gate warns early and pauses the run when the balance cannot cover the next step; a top-up resumes exactly where it left off
Free for most of what people need, with subscription plans for people who want to do more
How you reach it
In-app chat, Slack channels, Telegram, SMS from its own phone number, email from its own address, live phone calls, a REST API, and a native phone tab where the roster shows who needs you and you approve or decline in one tap
The Muse app on iOS and Android, the web, and WhatsApp, with AI glasses described as coming
Long-running work
Missions that outlive a session: wait until a time or a page changes, engine-free monitoring, resume across hours or days; plus several named routines per worker, each on its own schedule, that switch themselves off after repeated failures
Keeps working after the app is closed and comes back when something changes or it needs approval
Paying for things
A worker never holds a card: a payment step is a hand-off to you on its live page, where you pay and hand back
Checks out with a one-time-use card through a wallet built for agents, with purchase protections for lost items, price drops and returns on eligible purchases; a second wallet and a password manager are described as coming
Working with other agents
Rooms where you and up to eight workers talk in one conversation, address a worker by name and let them message each other, with the roster showing what each one is doing; plus delegation with a checked output contract, live steering, stop-and-keep-partial, and a cap on how many run at once
One Muse per person; nothing described for several agents
Teaching it a job
Take over its browser, do the job once, press Done: it saves the procedure as a skill it can edit and reuse, keeping the shape of what you typed but never the value; or describe the steps in chat; plus opt-in learning of how you write
Learns from conversations and remembers what matters; you can tell it to forget specific things
What it produces
Editable decks, documents, sheets, apps, images, video, and notes in the same workspace
Actions in the world: emails sent, forms filled, bookings and purchases made, plans and lists in the conversation
Company knowledge
Reads a reviewed company wiki and cites the article, its space, and its review status
Not offered; it is a personal agent
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Pricing and migration
What it costs, what it takes
Pricing
Pricing snapshot
Theo Agent is included from OpenCharts Starter at $9.99/mo, with Pro at $24.99/mo and Teams at $14.99 per user per month; runs spend the same AI credits every other Theo surface uses, and a dedicated SMS number is a monthly add-on. Muse is free for most of what people need, with subscription plans for people who want to do more, and is rolling out in the US on iOS, Android and the web. List pricing at time of writing (September 2026).
Migration
Migrating from Muse
There is no import between the two, and they are rarely a swap: Muse handles your life, Theo Agent handles your work, and many people will keep both. To give a worker the same context, create it from the wizard, paste the goal and the standards you would give a colleague, tick the tools it may use, connect the accounts the job needs, and choose an approval posture; anything it should know about you goes into its memory.
Questions
Frequently asked questions
Is Theo Agent the same kind of product as Muse?
They are cousins. Both are agents with a secure cloud computer of their own that keep working after you close the app, remember what matters to you, and ask before an email is sent or a purchase is made. Muse is a personal agent for one person's life, free for most of what people need. Theo Agent is a worker for your work, sold as part of an OpenCharts plan, with several workers, a choice of engines, receipts and org-wide rules.
Can I use Theo Agent as an individual, or is it for teams?
Both. Theo Agent is included from the Starter plan for one person, and Teams adds org-wide approval rules above every worker and a reviewed company wiki the workers can cite. A single worker can hold your calendar, answer your calls and run your standing jobs; a team can hire several and put them in a room.
Does Muse let me pick the model?
No. Muse runs on one model chosen by the vendor, with no picker. Theo Agent's Brain policy lets each worker orchestrate across engines from several labs, run in economy mode, or pin one engine, with separate lanes for writing, reasoning, vision, and code, and a worker can run on your own provider key.
How do the two handle passwords and payments?
Muse never sees a password or a payment method: credentials go into secure storage it can use without seeing, and it checks out with a one-time-use card that carries purchase protections. A Theo Agent worker never holds a password or a card either: when it reaches a login, a code or a payment step it asks you to step in on its live page, what you type is never recorded or shown to it, and the sign-in survives its restarts. Theo Agent does not shop with a wallet of its own.
How do approvals and audit compare?
Muse asks before sensitive actions such as sending an email or making a purchase, lets you choose how much access each app gets, and shows a complete audit trail of what it has done and plans to do. Theo Agent pauses per its posture, lets one approval cover a whole plan with each step marked reversible or not, applies org-wide rules on top of any worker, lets a worker earn autonomy for a kind of action after consecutive approvals with deleting never earnable, and writes a receipt per run naming the engine, sources, messages and credits.
Can I reach the agent outside its app?
Muse lives in its own app on iOS, Android and the web, and in WhatsApp, with AI glasses described as coming. A Theo Agent worker can hold its own phone number for texts and live calls, its own email address and calendar, a Slack channel it listens to, a Telegram chat, and a REST API.
Which one runs several agents together?
Theo Agent. Muse is one agent per person and describes nothing for several. Theo Agent has rooms: you and up to eight workers in one conversation, where you address a worker by name, workers can message each other within set limits, and the roster shows what each one is doing. Underneath, a manager can delegate a sub-goal to a teammate with an expected output shape, steer or stop it mid-flight, and cap how many run at once.
Hire a worker that keeps working
Give a Theo Agent worker a goal, the tools it may use, and an approval policy. It works within those boundaries and reports back. Included from the Starter plan, with the whole workspace alongside it.
Included from Starter · Approvals and receipts on every run