One-Line Verdict
Head-to-Head Comparison
| Dimension | Meta Muse | Google Gemini Spark |
|---|---|---|
| Launched | Sept 8, 2026 (US & Canada) | May 19, 2026 (I/O), rolling out through 2026 |
| Positioning | Personal AI agent "for everyone" | 24/7 personal agent "under your direction" |
| Sweet spot | Life: travel, shopping, email, errands | Workspace + life: Gmail, Drive, Docs, Sheets, Chrome errands |
| How it works | Secure cloud VM + Sentinel permission system | Cloud VM via Antigravity harness; runs on Gemini 3.5 |
| Deep integrations | Email, calendar, travel, shopping (first-party focus) | Google Workspace native: edit docs/sheets, triage email, calendar |
| Browser actions | Fills forms, books travel in its own browser | Chrome auto-browse with your logged-in accounts (July 2026 update) |
| Standalone price | Free tier · $20 Power · $100 Maximum | No standalone price; included in Google AI plans |
| Entry cost | $0 | AI Pro $19.99/mo · AI Ultra $249.99/mo (highest agent quotas) |
| Traction | 5M downloads in 22 days; #1 US iOS free chart | Rolling out via Gemini app, macOS app, Android Halo |
| Headline risk | Blocked by Amazon shortly after launch | Rollout staged; personal-account availability varies |
Where They Differ Most
1. Consumer app vs Workspace-native agent
Muse is an app-first consumer product: a "life concierge" that books travel, watches prices and handles email, with the Sentinel permission system gating purchases and external sharing. Gemini Spark is Google's answer built around your existing Google life — it edits private and shared Docs and Sheets (July 2026 update), triages Gmail threads, and keeps working in the background even with your laptop closed because it runs on Google Cloud VMs.
2. Chrome is Spark's killer feature
Google's July 2026 update gave Spark "Chrome auto-browse": with your permission, it uses your logged-in accounts and saved passwords to handle web errands — scheduling apartment viewings, researching flights and starting bookings — with protection against prompt injection and check-ins on sensitive actions. Muse also operates a browser inside its Secure VM, but Spark's advantage is that it rides your existing Google session rather than starting fresh.
3. Pricing: free vs an ecosystem subscription
Muse has a real free tier and tops out at $100/month. Gemini Spark has no standalone price — it comes inside Google AI subscriptions (AI Pro $19.99/mo, AI Ultra $249.99/mo with the highest agent quotas). If you already pay for Google AI, Spark costs nothing extra; if you don't, Muse is the cheaper way to try an agent first.
4. Security and rollout
Meta publicly documents Muse's security model (dedicated VM, Sentinel approval for every external action, credentials stored so the agent never sees them). Google emphasizes prompt-injection protection and user check-ins for Spark's sensitive actions. Both are rolling out in stages — Muse is US/Canada-only for now, Spark's availability varies by account type and region.
Which Should You Pick?
- Pick Muse if You want a free-to-try life agent, you're not deep in Google Workspace, or you prefer a standalone $0–$100 product over a subscription you may already have.
- Pick Gemini Spark if Your email, calendar and documents live in Google Workspace, and you want 24/7 automation that edits your files and browses Chrome under your direction.
- Hold off if You're outside the US/Canada (Muse), or Spark isn't available for your Google account type yet — rollout is staged.
These two complement each other well: Muse for consumer errands, Spark for everything inside Google.
Want more options?
See OpenAI Dots, Grok Bot, Alexa+ and the rest of the 2026 field in the full roundup.
Browse All Muse AlternativesSources
Facts on this page were verified against primary sources as of October 10, 2026. Product details change quickly — confirm on official pages before purchasing.
- Meta Newsroom — Introducing Muse, personal AI agent (official launch announcement)
- Google — The Gemini app becomes more agentic: Gemini Spark (official announcement)
- Google — Gemini Spark updates: Chrome auto-browse (July 2026)
- Google — What's new for Gemini Spark (Gemini Apps Help)