Muse vs Gemini: How Meta's AI Agent Compares (2026)

TL;DR

Muse, Meta's personal AI agent, and Gemini, Google's assistant, are both racing to become the agent that acts for you — and today Google is ahead on reach while Meta is ahead on consumer specifics. Google's approach is a portfolio: Deep Research, Gemini Agent in the US (English only, for Google AI Pro and Ultra subscribers), a personal agent called Gemini Spark in select countries, the Project Mariner research prototype, and Project Genie in more than 140 countries for Ultra. Muse, announced September 8, 2026, is one product: a secure cloud VM with its own browser, WhatsApp access, payments through Stripe Link with purchase protections, and tasks that keep running after you close the app. It is US-only and one day old at writing, with Reuters already reporting test failures. Pick Gemini for the widest availability and research depth; pick Muse for concrete errand-running — if you can access it and accept early-adopter risk.

At a glance

Capability	Muse (Meta)	Gemini (Google)
Chat quality	General assistant powered by the Muse Spark model family	Established assistant; Deep Research for extended investigations
Agent actions	Core design: sends email, books travel, fills forms, negotiates (per Meta)	Gemini Agent (US, English, Pro/Ultra); Gemini Spark personal agent (Pro/Ultra, select countries)
Browser operation	Muse's own browser inside the Secure VM	Project Mariner (early research prototype); Project Genie (140+ countries, Ultra)
Long-running tasks	Async by design — keeps working after you close the app	Not confirmed
App integrations	WhatsApp, Instagram, email, Stripe Link payments; more per TechCrunch	Not confirmed
Memory	Remembers what matters; tell it to "forget" specific things	Not confirmed
Shopping & payments	One-time-use card via Link by Stripe with purchase protections	Not confirmed
Travel booking	Stated capability; Reuters reported a flight-monitor test failure	Not confirmed
Automation & monitoring	Proactive — comes back when something changes or needs approval	Not confirmed
Approval controls	Checks before sensitive actions; Sentinel gate; complete audit trail	Not confirmed
Availability	US rollout on iOS, Android, muse.ai, and WhatsApp	Broad assistant; agent features gated by tier and country; Genie in 140+ countries (Ultra)
Pricing	Free for most uses officially; press reports $20 and $100/mo tiers	Google AI Pro $19.99/mo (US); Ultra from $249.99/mo

Agent actions: one product versus a portfolio

Google spreads its agentic bets across several named efforts. Deep Research (with a Deep Research Max tier) handles extended investigations. Gemini Agent is available in the US, in English, to Google AI Pro and Ultra subscribers. Gemini Spark is a personal agent for Pro and Ultra subscribers in select countries. Project Mariner is an early research prototype, and Project Genie reaches more than 140 countries for Ultra subscribers. Each effort is real, but each carries its own gate — tier, language, country, or prototype status.

Muse concentrates the same ambition into one consumer product. Meta's announcement states that Muse sends emails, books travel, opens a browser, fills out forms, and negotiates on your behalf, all inside the Muse Secure VM — a dedicated, secure virtual machine in the cloud with its own browser that houses the agent plus your data and credentials for connected services. A separate agent, Sentinel, isolated from Muse at the system level, gates the internet: per Meta, "nothing Muse does reaches the internet unless the Sentinel approves it."

The trade-off is freshness versus documentation. Muse launched the day before this page was written; Reuters reported that Meta's internal tests surfaced failure modes — a flight-monitoring test stopped refreshing — and Meta's Vishal Shah acknowledged it will "sometimes... make mistakes and sometimes... fail to finish things." Google's features carry their own caveats — paywalls, country gates, prototype labels — but they are documented and shipping.

Muse Spark and Gemini Spark: a confusing coincidence

Yes, both companies use the name. Muse Spark is Meta's model family, introduced April 8, 2026 as the first model family of Meta Superintelligence Labs; Reuters reports the Muse agent runs on Muse Spark 1.3. Gemini Spark is Google's personal agent, offered to Pro and Ultra subscribers in select countries. If a search result blends the two, you are not alone — but they are unrelated products from different companies. On this page, "Muse" always means Meta's agent and "Gemini Spark" always means Google's.

Errands, shopping, and travel

Muse's consumer specifics are the sharpest we've compared in this series. Per Meta's announcement, it turns an Instagram recipe reel into a grocery list, books travel, and remembers things like friends' dietary restrictions. Payments run through Link built by Stripe: a one-time-use card keeps your real card details hidden, and Meta says Muse is the first AI agent covered by Link's purchase protections — damaged or lost items, price drops, no-fee returns, and a return guarantee on eligible purchases — with Shop Pay coming soon. TechCrunch reports service categories including email, calendars, payments, health and fitness, smart home, dining, shopping, music, and events, opted into one service at a time. Start with our guides to planning a trip and finding the best price.

For Gemini, our sources document the agent names, tiers, and access gates — not consumer purchase protections or a shopping catalog — so we won't claim equivalents. If Google's agents can pay on your behalf under similar safeguards, it isn't documented in the materials we verified.

Memory, automation, and long-running tasks

Muse is built to persist. Meta says it remembers what matters and forgets specific things on request, works asynchronously — "Muse keeps working after people close the app" — and comes back when something changes or when it needs approval. Meta's own outcome examples, selling a car for more and lowering a bill, are monitoring-flavored tasks that can span days.

Our Gemini sources list agents and prototypes but do not document an always-on, proactive check-in model, so we mark that unconfirmed rather than assume it. Treat Muse's async architecture as a genuine structural difference — then remember that unattended work is exactly where Reuters reported Meta's internal tests failing, so check in on anything time-sensitive.

Privacy, security, and approvals

Meta's stated controls: Muse checks with you before sensitive actions like sending an email or making a purchase; it shows a complete audit trail of everything it has done and plans to do; Sentinel blocks anything from reaching the internet without approval; and Muse doesn't share your conversations or VM data with Meta's ad systems. Meta says you can opt out of your interactions training its AI models. Press reporting (CNBC) describes this as opt-out, meaning training use may be on unless you change it; Meta has not confirmed the default. Check the privacy settings in the Muse app. Wired notes that Meta's pledge not to access your VM is policy-based until the announced Muse Confidential VM — encrypted with a key only you hold — ships, and Meta's bug bounty reaches $300,000, including up to $130,000 for prompt-injection attacks affecting a single user, per Wired and CNBC. Details in our Muse privacy guide.

We did not verify comparable approval flows or data-separation details for Gemini's agent features in our sources. Google's product pages for each feature are the right place to check before connecting accounts on either side.

Pricing and availability

Google's plans are published: Google AI Pro at $19.99/month in the US, and Ultra — Google's top tier — from $249.99/month. The catch is gating: Gemini Agent requires Pro or Ultra and runs in the US in English only; Gemini Spark needs Pro or Ultra and select countries; Project Genie reaches 140+ countries but only for Ultra; Project Mariner remains a research prototype.

Muse's official pricing is one line — free for most of what people need, with subscription plans for people who want to do more — and no prices were published. TechCrunch and CNBC report Power at $20/month and Maximum at $100/month, unconfirmed by Meta. TechCrunch also reports a payment card is required at signup and a usage meter warns before free limits are hit; AP reports an 18-plus age requirement Meta hasn't confirmed. Our Muse pricing guide tracks official versus reported.

Availability inverts the reach story. Gemini's assistant is broadly accessible, with agent features gated by tier and country. Muse is rolling out only in the US on iOS, Android, and muse.ai — see our availability guide — though its WhatsApp access is unique, since WhatsApp banned third-party general-purpose AI assistants from its Business API effective January 15, 2026, and Muse is Meta's own, sanctioned agent inside the app.

Where Muse wins

• Consumer specificity: stated errands (email, travel, forms, negotiation), recipe-reel-to-grocery-list, and memory with a "forget" command.
• Purchase protections: the Stripe Link one-time-use card plus damage, price-drop, no-fee-return, and return-guarantee coverage.
• WhatsApp access rivals cannot match, because third-party assistants are banned from the Business API.
• Async monitoring by design, with approvals, the Sentinel gate, and a complete audit trail.

Where Gemini wins

• Reach and maturity: a broadly available assistant plus multiple documented agent efforts, including Project Genie in 140+ countries.
• Published pricing: $19.99/month Pro and Ultra from $249.99/month, versus Muse's unconfirmed reported tiers.
• Research depth: Deep Research and a Deep Research Max tier are documented today.
• More ways in: several agent surfaces (Agent, Spark, Mariner, Genie) you can adopt incrementally instead of one all-or-nothing product.

Which should you use?

• You live outside the US: Gemini is the practical choice today — Muse is US-only at launch with no announced international roadmap.
• You already pay for Google AI Pro or Ultra: try Gemini Agent and Gemini Spark before adding another subscription.
• You want an agent that runs errands — shopping with purchase protections, travel booking, price monitoring: Muse, starting with read-only connections.
• You need documented, published billing: Google's plans are public; treat Muse's reported $20/$100 tiers as unconfirmed.
• A reasonable combo: Gemini for research and Google-centric work, Muse for household errands and unattended monitoring.

One last note on names: Muse Spark is Meta's model, Gemini Spark is Google's agent — check which "Spark" a headline means before subscribing to anything. For the other head-to-heads, see Muse vs ChatGPT and Muse vs Claude, or the full comparison hub. Our prompt generator helps you structure requests for whichever agent you pick.