❯ Rabbit launches OS3, a cloud agent that operates local apps on Windows, Mac and Linux

the productRabbit launched OS3 on September 22, a cross-platform AI agent that connects to and operates local apps and files on Windows, Mac and Linux, across up to five devices. Users reach it through a browser, Telegram, iMessage, SMS or Rabbit’s own R1 hardware.

architecture and billingPer Rabbit, OS3 keeps conversation, memory and reasoning in the cloud while a local agent installed with a single command handles execution, reading local files without uploading them and reporting back results. It can operate desktop software, files and web pages, and write and debug code. There is no monthly fee, but users must bring an OpenAI or Anthropic API key or connect a local model. The R1 was widely criticized for thin functionality; OS3 effectively moves the product’s center of gravity from hardware to software.

a hardware company pivotsBring-your-own-key with no subscription means Rabbit has given up margin on model calls. AI hardware startups can read this as a reference case: when the hardware does not sell, the fallback is turning the agent into a cross-device software layer. But the competition on that path is OpenAI’s and Anthropic’s own desktop agents, and the pressure lands on the margins of agent companies without their own models, which can only differentiate on connectivity and experience.

▪ SIGNALRabbit retreating from hardware to a connection layer shows AI companies without models being squeezed into orchestration and integration.