Sai

Our internal tool barely has an API, so most automation products stop before the real useful part. A computer that can work through the app itself opens up tasks we have left manual for years.

My work rarely stays in one tab. I go from email to a native app to a spreadsheet just to finish one request. If Sai is able to work across the desktop, then it will be very useful to me.

Congrats on the launch, @justin2025 ! If Sai gets better at my usual file names and checks over time, that could save a surprising amount of setup.

Do you have any becnchmarks for accuracy on common tasks like booking or form filling?

Do you see this replacing RPA tools or is it a different category entirely?

Sounds interesting! What's the difference to Codex or Manus?

Being able to choose local or cloud makes this much more useful.

I'm Li Hau, engineer at Simular.I spent years building apps that assumed a human would be sitting there doing the clicking. Then I watched how people actually work: twelve tabs, three apps, copying a value from one into another, all day. The interface was never the product — the tasks were.So we built Sai, a robosecretary, and give Sai a fleet of autonomous computers. Each computer runs command, navigates app, check its own work. What you can do on a computer, can be done by Sai's computer.The hardest and coolest part wasn't one agent. It was many. Running a fleet of autonomous computers in parallel — keeping them coordinated, recoverable, and honest about what they actually did — is where most of our engineering went.I'll be in the comments all day — especially happy to talk about the failure cases.

Hey ProductHunt,I'm JC, representing the research team behind Sai.We're releasing Sai for free --- to free everyone from the repetitive busywork of clicking and typing on a computer, so we can all spend time on more fulfilling, creative, and impactful work than operating a computer."Did you say free? Doesn't Sai use LLMs??"Yes! Sai operates a fleet of autonomous computers for complex personal and business workflows. You delegate a task to Sai, and it orchestrates the best and most efficient models: reasoning models for pulling multiple documents from your Drive, state-of-the-art vision models to click on any pixel on the screen, and efficient verifiers to make sure each computer action is safe and correct for the task."Then how is free possible?!?"You know what's better than using LLMs? Not using LLMs (at least not for everything). After Sai completes your task once, it learns to repeat the task with 10-100x cost savings in future runs, so we're able to release this free tier for a mass audience along with our paid tier for power users."Are the machines free also?"Yes, Sai's free tier comes with one remote machine, dedicated just for you for 30min per day. We learned from our invite-only release of Sai since March 2026 that the majority of routine workflows can be completed within 30min per day of machine time. So we've optimized Sai's infrastructure so that you get a full personal machine just like your own."So how do I get started?"Go to https://www.sai.work/, and Sai, your first robosecretary, will show you how autonomous computers live and work in a new digital world --- giving you more freedom in yours.

Hey Product Hunt 👋I'm Ang and I build Sai at Simular.Sai is the world's first robosecretary that comes together with a fleet of autonomous computers doing your endless screen work. We believe the future of work isn't just one computer — it's many computer.Each computer navigates software the way you do: reads the screen, clicks the button, types in the form. That's the whole point. Because Sai works at the interface layer, it automates things that have no API and never will — legacy desktop apps, internal portals, anything behind a login. Windows, macOS, and Linux. 73% on OSWorld.What that buys you in practice:🖥️ Real computers, not a chat box. You hand over a task, it runs it on an actual desktop. Open the workspace any time to watch, or take the mouse back mid-run.🔁 It learns the route once. Any finished task can be saved as a skill, scheduled, or triggered by an event — so the tenth run is faster and cheaper than the first.🔒 Autonomy with a seatbelt. Tiered approvals, "trust for this task," and encrypted input for passwords and codes — the model never sees plaintext.The agent we actually optimize for is whether it's still useful and affordable the tenth time you ask.Tell us the screen work that eats your week — we'll tell you honestly whether Sai can take it off your hands.