Rabbit launches OS3 cloud agent that runs on Windows, Mac and Linux without its R1 hardware
The startup behind the R1 is betting its software can outlive the gadget that made it famous, with a cloud-based agentic OS that works on existing PCs.
Rabbit is releasing a standalone AI agent that runs on ordinary computers, no R1 required. The company announced OS3, which it calls an agentic operating system, a cloud-hosted service that executes tasks across Windows, Mac and Linux machines. The move shifts Rabbit's business away from the palm-sized device that drew heavy criticism after its 2024 launch and toward software that can reach users who never bought the hardware.
The R1 arrived in early 2024 with backing from Khosla Ventures and a promise to replace phone apps with a single voice-driven assistant. Reviewers found it slow, limited and dependent on cloud services, and Rabbit later admitted that a widely circulated demo had been staged. The company has since added features through software updates, but the R1's reputation never recovered, and its sales never approached the hype that surrounded the launch.
OS3 is meant to run in the cloud while acting locally on a user's machine, according to Rabbit. That combination lets the agent open applications, move files and complete multi-step jobs without shipping dedicated hardware, the company says, and it works across the three major desktop platforms. The approach puts Rabbit in direct competition with Microsoft's Copilot, Google's Gemini and a growing field of startup agents that also live inside existing operating systems.
Rabbit is not alone in chasing the desktop agent market. OpenAI has pushed operator-style tools, Anthropic has added computer use to Claude, and Microsoft has built agent features into Windows. Rabbit's advantage, if it has one, is that it started as a consumer hardware company and built a following around a physical product, giving it a recognizable brand even after the R1's rough reception.
The central question is whether users will trust a cloud agent with control of their local files and applications. Rabbit has not detailed its privacy or data-handling policies for OS3, and a company with a history of overpromising will face skepticism about how much of the agent's work happens on-device versus in Rabbit's servers. Pricing, a release date and which tasks OS3 handles reliably all remain unanswered.
Rabbit's pivot also raises the question of what happens to the R1 itself. If the company's future is software, the device becomes a showcase rather than the product, and existing owners will want to know whether OS3 improves their hardware or leaves it behind. Rabbit has not said how the two will connect, and that answer will shape whether the startup is remembered as a hardware cautionary tale or a software company that found its footing late.