What it sells
Turns books into AI-powered experiences.
Business model breakdown
Buyer: who owns the budget?
UnverifiedIndividual readers (sign up free) and, for institutional licensing, schools, universities and libraries.
Trigger: what makes them buy now?
UnverifiedStatic ebooks and flat audiobooks are too long or non-interactive; readers want to ask questions, debate and get summaries of a book in real time.
Workflow: what inputs become what output?
Reader opens a book on Sinai, reads or listens, asks the AI companion questions, dictates notes, and views generated visuals; authors and publishers list titles with an AI conversation layer.
Economics: what it saves and how it charges
Revenue sharing with publishers and recurring earnings/payouts for authors; institutional licensing.
Distribution: how it reaches customers
Free signup web app, publisher/author partnerships, institutional licensing.
Funding history and coverage
| Round date | Stage | Amount | Investors | Source |
|---|---|---|---|---|
| 2026-04-21 | Pre-seed | $1.45M | — | news.google.com |
Profiles summarize public reporting and company websites. Business-model notes are MaxBC's reading of that material, not confirmed facts; unknowns are left blank rather than guessed. Updated 2026-10-12.