Simular's autonomous computer agent — it uses a cloud computer (or your Mac/PC) for hours-long tasks, reporting by text
Sai, from Simular, is an autonomous agent that operates a real computer — a cloud machine, or your own Mac or Windows PC — to carry out tasks that take hours, not seconds: deep research, data gathering, form-filling and multi-step web work, with a persistent memory of how you like things done.
You brief it and approve results over iMessage, SMS or Telegram. Sai reached general availability in September 2026; per Simular’s site, an Explore tier is free, with pay-as-you-go and unlimited plans above it.
| Pricing | Freemium |
|---|---|
| Category | AI Personal Agents |
| Platforms | web, mac, windows |
| Company | Simular |
| Best for | People who delegate long research and web chores, not quick chats |
| Official website | sai.work |
Personal agents go further than chatbots: they keep working in the background, use tools, and complete multi-step tasks on your behalf. Choosing one starts with trust and control. Look for clear permission systems — what the agent may do on its own, what needs your approval, and how you revoke access — because an agent connected to your email, calendar and files is powerful in both directions. Channels matter: an agent you can reach by text, call or inside your chat apps fits real life better than another dashboard. Check memory and continuity (does it remember your preferences and past tasks?), the models it can use, and whether it is hosted for you or self-hosted on your own infrastructure. Start any agent on low-stakes tasks, review its work, and widen its permissions only as it earns trust.
Sai, from Simular, is an autonomous agent that operates a real computer — a cloud machine, or your own Mac or Windows PC — to carry out tasks that take hours, not seconds: deep research, data gathering, form-filling and multi-step web work, with a persistent memory of how you like things done.
Sai offers Operates a full computer, cloud or your own, Handles hours-long, multi-step tasks, Approvals and results over iMessage, SMS or Telegram and Persistent memory of your preferences.
Sai follows a freemium model: a free tier is available, and paid plans unlock higher limits and advanced features. Check its official website for current plan prices.
Strengths of Sai include Free Explore tier; Choice of cloud or your own machine. On the downside, Heavy tiers are pricey; Best at computer work, less at life admin.
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