Sai API launches: a cloud computer for agents
The Sai API provides a cloud Windows computer with click and type control, is model-agnostic, and reaches a 79.38% partial success rate on OSWorld 2.0.
The Sai API demo is 58 seconds long and hides a lot. Someone opens Claude Code and types, more or less: Muse gives every agent its own cloud computer, Sai API gives you a cloud computer, build your own Muse as a Windows app. Claude Code goes and builds it. The last frame is a chat window that says "Hi, I'm Muse". What you don't see is the stuff that used to be the whole project: a Windows VM, a way to stream its screen, a layer that clicks and types, retries for when a page loads slowly. All of that comes with the API now. Your coding agent writes the app, Sai operates the computer. The other thing I keep coming back to is that it's model-agnostic. Claude, GPT, DeepSeek, Qwen, whatever you trust that week. Sai sits on top as the part that actually uses the machine, and it's #1 on OSWorld 2.0 in partial success rate (79.38%). Mostly a crypto lurker here. This is still the kind of launch that makes me want to build something on the weekend.