Short answer: Quest: Personal AI advisor (Q.) you talk to over iMessage, text or voice: builds Your Memory and Relationship Map, crafts mini-apps for goals, has its own phone for WhatsApp, Instagram and TikTok, can supervise Muse and Instinct, and sends proactive check-ins. Meta Muse: Meta's personal AI agent: message it in the Muse app or WhatsApp, and it works on your goals inside a dedicated secure virtual machine.
Quest vs Meta Muse
Sourced facts only. “Unknown” means not verified yet.
Key facts side by side
| Criterion | Quest | Meta Muse |
|---|---|---|
| Type | personal agent | personal agent |
| Vendor | New Quest AI Inc. (Delaware company, San Francisco; founders Vincent Nallatamby and Thomas Girardier) | Meta |
| Channels / category | iOS app (iPhone, iPad, iMessage); requires iOS 18.0 or later; talk via iMessage, text or voice messages | Muse app (iOS, Android), muse.ai web, WhatsApp; AI glasses 'coming soon' |
| Pricing / availability | Free on the App Store (checked 7 Nov 2026). Paid subscription pricing unknown. | Free tier with usage limits; Power USD 20/month; Maximum USD 100/month (per Neomanex, 30 Sep 2026). Meta: 'free for most of what people need'. |
| Launched | 2026-11-05 | 2026-09-08 |
| Funding (reported) | Unknown | n/a (Meta product) |
| Channels confirmed | iMessage, Voice, Mobile app | WhatsApp, Mobile app, Web |
| Verified facts | Founder Vincent Nallatamby launched Quest on 5 Nov 2026 (X launch post; Launch Archive; Les Echos 5 Nov 2026 18:00); Made by New Quest AI Inc., a Delaware company based in San Francisco; privacy policy last updated 3 Nov 2026; Cofounder Thomas Girardier; French entrepreneurs formerly at Google, per Les Echos; Free on the App Store; talk to Q. via iMessage, text or voice; connects email, calendar, location and health; plans quests and can message proactively; iOS 18+; Builds Your Memory, designs Your Relationship Map, crafts Customizable Mini-Apps, has its Own Phone, acts as a Proactive Advisor and can Manage AI Assistants; Opt-in per connected app; can connect Gmail/Calendar/Drive/IMAP, Apple Health/Oura, work/money/media connectors; Muse and Instinct via Quest's phone; asks before confidential or sensitive sharing; Messaging on WhatsApp, Messenger, Instagram and TikTok runs on Quest's own phone; send only in chats you choose; can manage a conversation within your instructions while still asking before confidential or sensitive sharing; Terms say AI output may be inaccurate and is not medical, legal, financial or mental-health advice (Independent AI review of Terms §7); Paid subscription pricing unknown (App Store lists Free; Independent AI also marks cost beyond download as not verified); Les Echos quotes Vincent Nallatamby: people will have several AI agents; Quest is the mentor that knows the user by heart | Launched 8 Sep 2026, rolling out in the US; Runs on 'Muse Secure VM', a dedicated virtual machine holding the agent and the user's data; A 'Muse Confidential VM', encrypted with a key only the user holds, is announced for later; Can send emails, book travel and make online purchases; connects to apps such as Spotify and OpenTable; Free tier plus Power (USD 20/mo) and Maximum (USD 100/mo) plans; Meta's new Muse Wonder models (12 Oct 2026) will soon power Muse, rolling out first to subscribers |
| Website | https://www.new.quest/ | https://about.fb.com/news/2026/09/introducing-muse-personal-ai-agent/ |
| Sources | [1] [2] [3] [4] [5] [6] | [1] [2] [3] [4] [5] |
| Last checked | 2026-11-11 | 2026-11-11 |
Frequently asked questions
What is Quest?
Personal AI advisor (Q.) you talk to over iMessage, text or voice: builds Your Memory and Relationship Map, crafts mini-apps for goals, has its own phone for WhatsApp, Instagram and TikTok, can supervise Muse and Instinct, and sends proactive check-ins.
What is Meta Muse?
Meta's personal AI agent: message it in the Muse app or WhatsApp, and it works on your goals inside a dedicated secure virtual machine.
How much does Quest cost?
Free on the App Store (checked 7 Nov 2026). Paid subscription pricing unknown.
How much does Meta Muse cost?
Free tier with usage limits; Power USD 20/month; Maximum USD 100/month (per Neomanex, 30 Sep 2026). Meta: 'free for most of what people need'.
Are Quest and Meta Muse the same type of agent?
Quest is listed as a personal agent and Meta Muse as a personal agent.
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