Comparisons

Muse vs Gemini Spark: Meta’s and Google’s agents compared

Google shipped Gemini Spark in May; Meta answered with Muse in September. Both are personal agents that keep working when you close the app and ask before risky steps. They split on price, on who can get them, and on whose apps they live in.

By Published Facts checked 2026-10-15

Quick answer

Both are background agents that ask before risky actions. Muse (Meta) has a free plan, works on the web, phone, Mac and in WhatsApp, and is available only in the US and Canada. Gemini Spark (Google) needs a paid Google AI Pro ($19.99/month) or Ultra plan, lives inside Gmail, Docs, Drive and Chrome, and works in far more countries (not the EEA, UK, Switzerland or Nigeria). Pick Muse to try an agent free in North America; pick Spark if your life runs on Google and you’re elsewhere.

About this page

Not testedGemini Spark details come from Google’s own blog and help pages, checked October 5, 2026; we haven’t used Spark. Muse details also draw on our own tests. See how we label evidence.

Side by side

As described by Meta and Google (checked 2026-10-05)
 Muse (Meta)Gemini Spark (Google)
LaunchedSeptember 8, 20261Announced May 19, 2026; US Pro access from July 1624
How it’s describedA personal AI agent that “keeps working after people close the app”1“A 24/7 personal AI agent”2
ModelMeta’s Muse Spark1Gemini 3.5, as a cloud-based agent2
Where you use itmuse.ai, iPhone, Android, Mac app, WhatsApp112Gemini mobile app, Gemini app on Mac, gemini.google.com3
Apps it works with54 connectors in the app on Sept 30, including Gmail, Google Calendar, Docs, Drive, Slack and Notion7Gmail, Calendar, Docs, Drive, Tasks, Keep; Connected Apps such as Canva, Instacart, OpenTable, Dropbox, Zillow; custom apps via MCP34
BrowsingIts own browser on a private cloud computer8Your local Chrome or a remote browser, with access to sites “you’re signed into”3
Recurring workGoals and scheduled tasks1Tasks, schedules and skills; up to 15 tasks running at once3
Asks before actingApprovals for actions like sending email or buying; a separate checker agent, Sentinel8Confirmation before sending communications, changing data, purchases and form submissions3
PriceFree (weekly limit); Power $20/month; Maximum $100/month6Google AI Pro ($19.99/month in the US) or Ultra35
CountriesUS and Canada9Where Gemini Apps are supported, except the EEA, Nigeria, Switzerland and the UK3
Requirements18+, Meta account618+, personal Google Account, “Keep Activity” on3
StatusGenerally available in its countriesGoogle calls it “an experimental feature in early development”3

The differences that matter

  1. Cost to start. Muse is free to try; Spark needs a paid Google AI plan.
  2. Where you live. Muse stops at the US and Canada. Spark reaches most Gemini countries, though Google’s update log confirms Pro-plan access only in the US (in English); outside the US, check your plan.4
  3. Whose apps. Spark is strongest inside Google’s own apps and Chrome, where you’re already signed in. Muse runs on its own cloud computer and reaches Google apps through connectors, plus WhatsApp and Meta’s apps.
  4. Privacy trade-offs. Spark requires Gemini’s Keep Activity setting to be on.3 Muse has an AI-training switch that’s on by default; you can turn it off. TestedIt was on in our account.10

Safety warnings from each company

TestedIn our test, Muse stopped and asked before sending an email (see the prompt). Per MetaMeta says Muse “can make mistakes or take unexpected actions” and recommends starting with low-risk tasks.11 Google says the same kind of thing about Spark: it warns of prompt injection, tells users not to type sign-in or payment details into a task, and says “your active supervision is the most important way to protect against risk.”3 Muse also had security problems reported in its first weeks; see Is Muse safe?

Which should you choose?

You want to try an agent for free
Muse, if you’re in the US or Canada.
Your email, files and calendar are all Google
Gemini Spark, especially if you already pay for Google AI Pro.
You chat in WhatsApp
Muse works inside WhatsApp; Google doesn’t list WhatsApp for Spark.
You’re outside the US and Canada
Gemini Spark (except in the EEA, UK, Switzerland and Nigeria). Muse isn’t available.

Comparing more agents? See Muse alternatives and Muse vs OpenAI dots.

Sources

  1. Introducing Muse Meta Newsroom · Sept 8, 2026
  2. The Gemini app becomes more agentic Google · May 19, 2026
  3. Use Gemini Spark to manage your tasks and workflows Gemini Apps Help · checked Oct 5, 2026
  4. What’s new for Gemini Spark Gemini Apps Help · checked Oct 5, 2026
  5. Gemini Spark rolling out to Google AI Pro users in the US 9to5Google · July 23, 2026
  6. About Muse subscriptions Meta Help Center · checked Oct 5, 2026
  7. Muse connectors tracker MetaMuseAI · tested Sept 30, 2026
  8. How we built safety into Muse Meta AI Research · Sept 8, 2026
  9. Is Muse available in my country? MetaMuseAI
  10. How to manage or delete your Muse data MetaMuseAI · tested Oct 1, 2026
  11. How Muse works with your guidance and approval Meta Help Center · checked Oct 5, 2026
  12. Download Muse (Mac and mobile) Meta · checked Oct 3, 2026

Last checked: 2026-10-15. Both products change often; tell us if something’s out of date.

Frequently asked questions

Is Gemini Spark free?

No. Google says you need a Google AI Pro or Ultra subscription; Pro costs $19.99 a month in the US. Muse has a free plan with a weekly limit.356

Which is available in more countries, Muse or Gemini Spark?

Gemini Spark. Google says it isn’t available in the European Economic Area, Nigeria, Switzerland or the UK, but works in other places Gemini Apps are supported. Muse is limited to the US and Canada.3

Is Muse or Gemini Spark better?

It depends on your apps. Gemini Spark works inside Google’s world (Gmail, Calendar, Docs, Drive, Chrome). Muse connects to Google apps too, plus Meta’s own apps and WhatsApp, and it’s free to try. Neither company publishes a head-to-head test, and we’ve tested only Muse.

Do Muse and Gemini Spark ask before acting?

Both say so. Google says Spark asks for confirmation before sending communications, changing data, buying things or submitting forms. In our test, Muse stopped and asked before sending an email.3