An AI chief of staff runs the operating layer of a business for its founder: inbox, calendar, follow-ups, KPIs, content, call prep and reminders, and it takes action instead of handing back suggestions. Sabi is one. You reach her by text, and she remembers your business, your clients and your priorities between conversations.
By Bruce van Zyl, co-founder of Sabi · Updated October 29, 2026
A chatbot waits; a chief of staff comes to you. ChatGPT waits for you to ask and needs a good prompt every time. An AI chief of staff like Sabi arrives with answers, follow-ups and finished work, already knows your voice, audience and tools, and remembers between sessions.
Sabi works as an AI chief of staff by running inbox, calendar, follow-ups, content and KPI reports from one text thread, with a specialist for each job underneath.
The basics that eat a founder's mornings. In week one Sabi triages your inbox, drafts replies, follows up with leads, summarizes meetings and builds briefings. You connect Gmail, Outlook or Microsoft 365 with one tap, and the first Morning Check-in arrives as a text.
In week one Sabi handles the basics: inbox triage, drafted replies, meeting summaries, lead follow-ups and a daily Morning Check-in by text.
By month three the scope widens from reacting to running. Daily lead generation pulls leads from your CRM or inbox and follows up on a cadence you approve. Content goes out in your voice on a schedule across LinkedIn, X, Instagram and Facebook. Website updates and KPI snapshots become standing tasks, and Sabi works alongside your team on the pieces you route through her.
For paying customers Night Shift adds overnight work: new emails tagged by project, calendar patterns studied and a Monday brief drafted for review. By month three Sabi runs daily lead gen, posts content on a schedule and handles website updates, working alongside your team rather than replacing it.
Through rules enforced in code, not promises. Set an approval rule and a gate written in code stops Sabi from emailing or texting anyone until you approve each one. Every tool she runs is logged, and you can review or adjust her access any time with no support ticket.
Integrations disconnect from inside Sabi, or you revoke them from Google, Stripe and the rest. With an approval rule set, Sabi cannot email or text anyone until the founder approves, and every tool she runs is logged.
Several things, and they matter when you decide. Sabi is single-user today, built around one founder; team seats are on the roadmap. She writes words but does not make images yet. Slack and Discord messages are not covered by approval rules yet. And a human chief of staff still wins on relationships and judgment in the room.
Most founders who use Sabi do not keep a human assistant; a few keep a part-time human for in-person errands or sensitive relationships. Sabi is single-user today and strongest for a founder who runs the business by text; a 50-person ops team is not the fit.
Start free by text, no card, and hand over the week-one basics today.
In Sabi's case, yes. Sabi calls herself an AI executive assistant, and the chief-of-staff scope is the same set of jobs run proactively: inbox, calendar, follow-ups, KPIs, content and call prep.
Sabi Pro is $195 a month, month to month, cancel anytime, after free starter credits with no card. A full-time US executive assistant runs $84K to $144K a year plus benefits and management.
Not yet. Today Sabi is built around a single founder's account, and team seats are on the roadmap.
In Sabi's experience most founders save 15 to 25 hours a week within the first month. For some customers Sabi has taken on the workload of 3 to 5 team members' worth of admin.
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