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Simular is building the world’s first autonomous computers—systems that can use software like humans do.
From browsing websites and filling out spreadsheets to running creative tools and managing workflows, Simular enables a new era of human-computer interaction where software operates itself.
Whether you’re a solo founder, a global enterprise, or an AI researcher, Simular gives you access to the future of computing: computers that think, act, and get things done—autonomously.
This is the 5th launch from Simular. View more
Sai
Launched this week
Sai is the world's first robosecretary that works with a fleet of autonomous computers, doing your endless screen work. Each computer navigates software the way you do: reads the screen, clicks the button, types in the form. Trained to interact with the computer interface, Sai automates software even when they lack APIs: legacy desktop apps, internal portals, anything behind a login. Sai supports Windows, macOS and Linux. 73% on OSWorld.
Free
Launch Team / Built With
@Simular @agidude Congrats one the PH launch ! , Does it have human in loop control / fully autonomous ?
Simular
@agidude @easeops Thank you! Sai supports both.
It can run tasks fully autonomously, including across multiple computers. When it needs missing information, approval for a sensitive action, or encounters ambiguity, it pauses and asks you.
You can also watch the work, provide guidance mid-task, or take control of the computer at any time.
@agidude @chenchen_sun1 Cool, Thanks for clarification
Pokecut
A final file is useful, but I also need to know how it was made. Can I see which apps Sai opened and which files it changed? Is there a run log I can share with a teammate?
Simular
@anthony_cai Yes. Each task keeps a conversation history with Sai’s progress and final deliverables. You can share that conversation with a teammate as a read-only link, and generated files appear as shareable artifacts.
Today, we do not expose a formal audit log listing every app opened and every file mutation. You can watch the workspace live, but more granular post-run auditing is something we want to add.
Lessie AI
When an automation makes a mistake, the first thing I want is a clear record of what happened. A run history is a useful part of the product, not an extra for admins.
@alexia_li yes, i've been using it daily personally, to view all the task result at a glance is a lifesaver
Simular
I’m Yulia, a designer at Simular. One thing I kept coming back to while designing Sai: when the computer starts doing the work for you, the interface has to change too. You’re no longer designing screens for someone to operate - you’re designing a way for people to delegate, understand what’s happening, and stay in control.
That shift has been one of the most interesting design problems I’ve worked on. Sai can operate computers on its own, but making that autonomy feel understandable, trustworthy, and genuinely useful is what turns the technology into a product.
Very excited that Sai is finally out in the wild! Try it, break it, and tell us what feels weird. I’ll be in the comments all day! 🚀
Triforce Todos
Hey @Simular team, how does it handle logins that need 2fa or otp, does it just get stuck there?
@abod_rehman for now, we do not have access to your authenticator or your phone for 2FA, but we are working on bringing SAI to your phone as well. 😊
Vozo AI — Video localization
Congrats! Btw your intro video is refreshing
Simular
Simular
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.