Trustworthy by design.
The assistant can't act on your behalf without your explicit permission. Guardrails you can see and controls you can adjust — not promises in a policy.
One platform · many kinds of assistant
Think better. Keep what you learn.
ThoughtPartner helps you think, learn and get things done — on your terms. Your data stays yours, the boundaries are yours to set, and every version helps you get measurably better. Choose the assistant that fits.
What every ThoughtPartner shares
Built on four promises.
Your data stays yours.
Your assistant's memory lives in your own private space — Lintel-managed or self-hosted. You can read everything it knows, download a copy, and take it with you if you ever leave.
You set the rules.
Your assistant starts read-only. You open capabilities one at a time. Every boundary is enforced by the product — and applies to every channel it operates on.
Progress you can see.
The assistant helps you improve measurably over time — sharper recall, harder questions, visible growth. Not an oracle you lean on, but a thinking partner that moves with you.
ThoughtPartner helps you improve yourself and learn to use AI well — a sparring partner, not an oracle.
The idea behind every ThoughtPartner assistant.
Choose a type
Choose your assistant type
Personal Assistant
An always-available thinking partner that remembers what matters — and sharpens with every conversation.
ExploreSpark
A tutor that guides but never does the task for you — and teaches critical AI use along the way.
ExploreChief of Staff
An expanded, executive-level Personal Assistant — more capable and more proactive. On the roadmap.
Get notifiedCoach
Learn something new as a grown-up — the Tutor's principle, for adults. Coming later.
Get notified