Replace OS
Reliable AI agents that operate companies. A desktop workplace where you hire your team, message them like coworkers, and let them run the work.
Visit websiteBuilt because every existing agent product is a demo pretending to be a product. Non-technical operators don't need another demo. They need agents they can trust.
Founders building solo. Freelancers running themselves like a company of one. Operators inside small teams who want leverage without headcount. Knowledge workers who want a strategist, a builder, and a researcher on call without hiring three people. Anyone who has watched the AI moment and thought "I should have a team by now," and bounced off every product that asked them to be a developer to get one.
Replace OS is the desktop workplace for people who want to run a company of agents, not configure one. You hire a CEO and a handful of specialists from a curated catalog. From that moment, every employee has a name, a role, a memory, and a direct-message thread with you. The CEO routes work when you don't want to think about it. The specialists take requests directly when you do. The team delegates among itself when a job needs more than one of them. A live company view shows who is working on what, who is waiting, and who needs your sign-off.
What's underneath
The whole product is built around one promise: reliability. Agent demos break the same three ways. They forget. They wander. They take actions you didn't ask for. We design against all three.
Every employee has persistent memory. They remember the project you started last Tuesday, the tone you prefer, the customer you're targeting, the constraints you've already given. They don't reset between conversations.
Every employee has a defined role and a defined set of tools. A strategist strategizes. A builder builds. A moderator moderates. They don't roleplay as something they're not, and they don't reach for capabilities they weren't hired to use.
Every action with consequences pauses for your approval. Writing a file, running a command, sending a message: anything that changes the world. Your employee asks first, in plain language, in the same thread you're already in. No autonomous mistakes to clean up at midnight.
Every task runs inside hard limits on time, cost, and how deep the team can pass work among themselves. When something goes wrong, it stops. When you cancel, it actually stops. The agents are built to be governable, not just impressive.
Why now
A year ago, an agent that ran your business was a pitch deck. Today the underlying models can plan, write, code, research, and revise at the level of a competent junior teammate. The remaining work is not capability. It is reliability, memory, coordination, and a surface that doesn't require an engineer to operate.
The companies that win the next five years are the ones whose owners didn't have to learn to be prompt engineers, didn't glue together five vendors, and didn't hope their agents behaved. They had a team that worked.
Replace OS is what that team looks like.
Where it's running
Desktop-first, Mac and Windows. Your company runs on your machine. Your conversations, your memory, your work, your data: local by default, yours by default. Pricing is pass-through on the model usage your team consumes. No tiers, no credits, no lock-in.