Comma vs Meta Muse: an open source Muse alternative

Muse is Meta's personal AI agent: a closed app that works on a computer in Meta's cloud, on Meta's own model, for adults in the US and Canada. Comma is a free, open source personal agent that also works around the clock on a cloud computer of its own. You choose its model, and you can run it on your own server.

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Open source (AGPL-3.0)
Self-host with Docker Compose

By the Comma team · Updated October 10, 2026

At a glance

Feature	Comma	Muse
What it is	An open source personal AI agent that works 24/7	Meta's personal AI agent, in an app of its own
Who can use it	Anyone with an email address	Adults in the US and Canada, with a Meta account
Where the agent works	A cloud computer for each Workspace, and your Mac when you allow it	A computer in Meta's cloud, and your Mac when you allow it
Works while you are away	Yes. Loops watch your apps 24/7, and Tasks keep running with your Mac closed	Yes. It keeps working after you close the app, and runs scheduled tasks
Acts without being asked	A briefing at the time you set, and a message when something needs you	Suggestions without being asked
Where you talk to it	Mac app, web app, Signal and Telegram. iOS and Android are coming soon	iPhone, iPad, Android, web, Mac and WhatsApp
Apps it works in	Gmail, Outlook, Slack, GitHub, Linear, Notion and Google Workspace, plus MCP servers	Email, calendar, Slack, Notion, GitHub, shopping apps, and Facebook, Instagram and Threads
Models	Comma's models, your own API key, or your ChatGPT or Claude plan	Meta's Muse Spark
Price	Free plan US$0 with unlimited chat; Pro adds credits	Free up to a usage limit; Power US$20 and Max US$100 a month
Open source	Yes, AGPL-3.0	No. Its terms forbid reverse engineering
Self-hosting	Yes, with Docker Compose	No. It runs only in Meta's cloud
Training on your data	Your content is not used to train AI models	On by default; you can turn it off

Quick verdict

Choose Comma if you…

Want to run the agent on a server you manage, or read and change its code
Want to pick the model, or use your own key or ChatGPT or Claude plan
Want each piece of work tracked as a Task, with your decisions waiting in Needs Review
Are outside the US and Canada, or would rather not tie your agent to a Meta account

Choose Muse if you…

Spend your day in Meta's apps and want Facebook, Instagram and Threads connected
Want to talk to your agent in WhatsApp, or in a phone app today
Want it to shop for you, paying with one-time card numbers
Prefer one company's model and cloud, set up for you

Comma vs Meta Muse: Where the agent works

Both give the agent a computer of its own in the cloud, so the work goes on while your phone is off.

Muse runs each person's agent on a persistent, isolated virtual machine in Meta's cloud, with a browser that you and the agent share. On a Mac, Muse can work in local apps such as Mail and Calendar once you allow it.

Comma gives each Workspace a cloud computer that starts when a Task needs it and stops a few minutes after the work ends. Between Tasks, small programs called Loops watch your inbox, repositories and feeds, and wake the agent only when something needs it. On your Mac, Comma starts read-only and does more only after you turn on Allow operations.

Comma: A cloud computer for each Workspace, Loops that watch 24/7, and your Mac read-only until you allow more.
Muse: A persistent virtual machine in Meta's cloud for each person, and your Mac with your permission.

Comma vs Meta Muse: How work gets done

Muse plans a goal and carries it out from the app. Comma turns each request into a Task that you can follow until it is done.

Muse plans multi-step work, runs scheduled tasks, makes suggestions without being asked, and checks with you before sensitive actions. At checkout it pays with one-time card numbers.

In Comma, a bigger request becomes a Task on a board with three columns: In progress, Needs Review and Done. Comma checks its own work and moves the card itself, and a decision that is yours waits in Needs Review. Before your day starts, Routines lists what needs you in each app, and Comma messages you first when something needs you now.

Comma: Each request that needs work becomes a Task you can follow on one board.
Muse: Goals planned and carried out in the app, with a check before sensitive actions.

Comma vs Meta Muse: Models

Muse runs on Meta's own model. Comma lets you choose.

Muse uses Muse Spark, a model from Meta Superintelligence Labs. Meta has not published Muse Spark's weights.

Comma uses its own models by default. You can bring your own API key, use your ChatGPT or Claude plan, choose a model for each role, or let Codex or Claude Code do the work on a computer you connect. Model calls through your own key or plan use no Comma credits.

Comma: Comma's models, your own key, or your ChatGPT or Claude plan.
Muse: Meta's Muse Spark.

Comma vs Meta Muse: Privacy and ownership

Muse keeps your agent and its data in Meta's cloud. Comma can run wherever you choose.

Muse needs a Meta account. Its privacy policy says Meta uses your interactions with Muse to train its models unless you turn this off, and Meta says your conversations stay out of its ad systems. When your Facebook, Instagram or Threads account shares Accounts Center with Muse, those apps connect to it. Muse is a closed app, and its terms forbid reverse engineering.

Comma does not use your files, conversations or prompts to train AI models, and it does not sell your personal data. Connected apps get scoped access that you can revoke. Comma is open source under AGPL-3.0, and a self-hosted Comma keeps your Tasks, chats and files in your own databases and sends model calls to the provider you set.

Comma: No training on your content; open source, and free to self-host.
Muse: Training on by default with an off switch; closed source, in Meta's cloud only.

Pricing side by side

Comma

FreeUS$0 / monthUnlimited chat. Bring your own key (BYOK) for advanced models.
ProSee pricingAbout 300–600 agentic tasks a month.
EnterpriseCustomCredits and billing set with you.
Self-hostedUS$0No plan or card. You pay for your machine and your model provider.

Muse

FreeUS$0Up to a usage limit that Meta can change.
PowerUS$20 / month500 million tokens a week.
MaxUS$100 / month3 billion tokens a week.

Prices as each product lists them on October 10, 2026. See Comma's current Pro price on the pricing page.

Try Comma beside Muse

Start on the Free plan with your email address, or run Comma on your own server. Connect the apps you work in, and hand Comma one Task to see how it handles it.

Get started Self-host guide

FAQs

Is Comma a good alternative to Meta Muse?

If you want an agent you can own, yes. Like Muse, Comma works around the clock on a cloud computer of its own. Unlike Muse, it is open source under AGPL-3.0, lets you choose the model, and can run on a server you manage.

Do I need a Meta account to use Comma?

No. You sign in to Comma with your email address and a code. A self-hosted instance signs you in the same way, and needs no Comma account at all.

Which models can Comma use?

Comma uses its own models by default. You can also bring your own API key, or your ChatGPT or Claude plan, and choose a model for each role. On a self-hosted Comma, you set one model for the whole instance, or each person adds a private model.

Does Comma train AI models on my data?

No. Comma does not use your files, conversations or prompts to train its own or third-party general-purpose AI models, and it does not sell your personal data.

How do the prices compare?

Comma's Free plan costs US$0 with unlimited chat, and Pro adds credits for heavier use. Muse is free up to a usage limit, and its paid plans are Power at US$20 and Max at US$100 a month. A self-hosted Comma costs nothing from Comma: you pay for your machine and your model calls.

Can I use Comma and Muse together?

Yes. They do not depend on each other. You might keep Muse for Meta's apps and use Comma for work in Slack, GitHub, Linear or Notion, or on your Mac.