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Rabbit Unveils OS3, a Cloud Personal AI Agent That Reaches Into Users' Computers

Rabbit Inc. launched OS3, a cloud-based personal AI agent that installs on up to five machines with one command, connects to PCs and phones, and lets users bring their own AI model subscription.

AI News Feed · 2026-09-24 02:38

OS3 operates on a user's PC and other devices through the Rabbit agent, which is installed with a single command and can be placed on as many as five machines, the company said.

The agent is model-agnostic. Rabbit said OS3 can connect to any AI model, but users must bring their own key, meaning they need their own subscription to a provider such as Anthropic's Claude or OpenAI's GPT, or supply a local model. It also connects to aggregators including OpenRouter. According to the company, the agent can switch between models without losing context, memory or skills, which lets users trade cost against the complexity of a task.

"We've spent two and a half years building toward a system you don't operate, but instead just tell it the outcome," Chief Executive and founder Jesse Lyu said. "OS3 allows users to stop worrying about whether a task is technically possible, and start collaborating on whatever is on their mind."

Users can type to the agent through a standard chat interface or speak to it aloud. Rabbit said the agent follows long conversations, runs background operations around the clock and contacts the user when long-running tasks finish. It reaches users' phones through a paired Telegram bot and through the web.

Rabbit said OS3 will act only in response to user instructions and will not start tasks on its own. Sensitive actions require user consent and confirmation, and system-level permissions must be granted locally by the operating system; users can revoke permissions at any time.

The company also said the system offers universal skill compatibility, so a user who already works with another agent or assistant can import that agent's skills by pasting the skill's URL. OS3 sets the skill up without command prompts or further configuration.

OS3 can be installed on Windows, macOS and Linux machines, as well as cloud virtual machines, dedicated AI machines and the R1. Rabbit said more device types are planned. The R1 is not required to run OS3 but works with it. A Rabbit account, which can be created on the company's website, is needed to get started.

Rabbit is entering a field that already includes OpenClaw, Hermes Agent, Instinct and, most recently, Muse — agents that run on consumer devices, retain long-term goals and use tools such as email, calendars and file reading and writing to complete tasks in the background. Anthropic and OpenAI have also been testing always-on computer-use agents; Anthropic's Claude Dispatch lets its Windows and macOS app run on a user's PC, launch local agents while the user is away and reach local files through a mobile connection.