Instinct, the San Francisco startup behind an invite-only personal AI agent, said Monday it has raised an additional $1 billion in a Series C round that values the company at $10 billion. The company named Sequoia Capital, Benchmark Capital, and Coatue as investors in a Business Wire release. Neither the release nor same-day coverage from TechCrunch or Reuters/CNA identified a lead firm or said whether the $10 billion figure is pre-money or post-money.
The raise comes roughly a month after Instinct told the Wall Street Journal it had closed a $250 million Series B at a $2.5 billion valuation, co-led by Index Ventures and Benchmark, bringing cumulative funding at that point to about $350 million, TechCrunch reported Aug. 26. Cumulative capital after the new round is on the order of $1.35 billion, combining those disclosed figures—arithmetic, not a company totalization.
Founder Noah Shinn, a former research scientist at Bret Taylor’s customer-service AI company Sierra and first author of the 2023 Reflexion paper on agents that learn from their own mistakes, built Instinct to act rather than merely answer. Users text or call; the agent is designed to operate its own phone and computer the way a person would—booking, shopping, following up, canceling subscriptions. The product is offered by Spear Street Technology. The company says Instinct remains in early access.
In Monday’s release, Instinct listed recent product additions: Instinct Concierge for high-touch phone calls and bookings that lack clean web flows; a Trusted Person Network so one user’s agent can coordinate with another’s and share files; location-aware suggestions via iMessage; and privacy features the company describes as isolated sandboxes, short-lived credentials, and filters meant to catch hallucinations before the agent acts. Shinn’s prepared statement said the money would help “bring Instinct to more people.” Instinct declined interview requests alongside the announcement, TechCrunch reported.
What Monday’s materials do not include is as important as what they do. Instinct has not published user counts, waitlist size, retention, task-completion rates, or revenue with the Series C. TechCrunch noted the company “has also not shared its user numbers or any growth metrics.” Early coverage also documented privacy and terms-of-service blowback in August; TechCrunch said the privacy policy has since been updated. The current text was not re-audited for this draft.
The financing lands in a market Meta entered three weeks earlier. On Sept. 8, Meta launched Muse, a consumer personal agent that Meta says can send email, book travel, fill forms, pursue longer goals, and check out with Link by Stripe after user approval. Muse runs in Meta’s Muse Secure VM, with a separate Sentinel process Meta says must approve outbound actions. It is available in the U.S. (and, per later Sensor Tower coverage, Canada) on iOS, Android, muse.ai, and WhatsApp, with AI-glasses support promised later. Meta prices a free tier plus Power at $20 a month and Maximum at $100 a month for heavier use.
Distribution is the obvious asymmetry. Instinct still has no consumer app and reaches people over SMS and calls inside an invite system. Muse climbed to No. 1 on the U.S. App Store and Google Play in mid-September, TechCrunch reported, with third-party estimators (Sensor Tower, Apptopia, Appfigures) putting downloads in the low millions—figures that vary by firm and are not Meta’s official tally. Meta is also promoting Muse across Facebook and Instagram properties. Instinct’s bet is depth and agency through a messaging-native agent that already holds VC attention at a fourfold valuation step-up from late August; Meta’s bet is default distribution plus a secured agent runtime at consumer scale.
That is the race Monday’s check clarifies without resolving: who owns the do-it-for-me assistant layer—the startup that made Silicon Valley’s group chats obsess over invite codes, or the platform that can put an agent next to WhatsApp and Instagram for hundreds of millions of people. Capital answers capacity and model spend. App-store rank and house ads answer reach. Neither Monday’s PR nor Meta’s launch posts settle reliability, permission boundaries, or whether users will pay once the novelty fades.
For now, the verified scoreboard is narrow and sharp. Instinct: $1 billion Series C, $10 billion valuation (pre/post unspecified), Sequoia–Benchmark–Coatue as named backers, still invite-only. Muse: public U.S. apps, paid tiers, multi-million download estimates, Secure VM architecture Meta is pitching as the trust layer. The consumer agent category is no longer a demo reel. It is a financing and distribution contest over who gets to act on your behalf.