A month ago Instinct was worth $2.5 billion. Now it's $10 billion. The startup that handles chores like booking a table or cancelling a forgotten subscription has raised $1 billion in a Series C round led by Sequoia Capital, Benchmark and Coatue.
Founder Noah Shinn launched the invite-only service in August 2026. Barely a month later, the company is valued at ten times what most startups take years to reach — a pace that says as much about investor appetite for AI agents as it does about the product itself.
The pitch is simple, the engineering less so: Instinct acts on a person's behalf, using its own phone number and a virtual computer to call a restaurant, complete a purchase, or untangle a subscription nobody remembers signing up for. Newer features include a 'concierge' that phones venues with no online booking, and a 'trusted person network' letting different users' agents coordinate plans with each other.
An early version of Instinct's privacy policy drew scrutiny for how much personal data the agent needed access to in order to act convincingly as its owner. The company rewrote it, but the episode exposed the core trade-off of personal AI agents: to be genuinely useful, one has to know almost everything about you.
Competition is moving just as fast. Meta's Muse offers a comparable feature set plus built-in social integration and already tops app store charts. For Instinct, the fresh billion looks less like a victory lap and more like a war chest — a bet that money can buy the time needed to catch a rival with a far bigger head start in users.
