Rabbit unveils OS3, a cloud AI agent for up to five machines

Rabbit is best known for the pocket-sized R1 device, and OS3 arrives as its second act — this time as cloud software rather than hardware. The R1 is not required to run OS3, though it does work with it, so the company is widening its reach beyond the device that made its name.

The launch lands in a crowded field. The body notes a glut of personal AI agents and assistants, including OpenClaw, Hermes Agent, Instinct and most recently Muse, all offering autonomous capabilities on consumer devices, long-term memory of goals, and use of tools like email, calendars and file reading and writing. Frontier labs are moving in the same direction: Claude Dispatch lets Anthropic's Windows and macOS app run local agents on a PC even when the user is away, connected by mobile and able to reach local files.

Rabbit's answer is flexibility rather than lock-in. The agent is model-agnostic but requires a user-supplied key, so it can swap between models without disturbing context, memory or skills, letting users match spend to task difficulty — and it can pull in skills from competing assistants by pasting a URL. Whether that openness translates into trust may hinge on the guardrails the company describes, since the argument for an always-on agent rests on it acting only when told.