Google NotebookLM

Grounded AI study assistant over your own sources

We publish a full Four-Mismatches fit assessment for the student-facing exam tools first. For this one, the facts below are what we have verified — run the Four Mismatches Test on it yourself for your own students.

Independence: Addestra builds learning products too (MathsTutor, TinkerWell). We never review or score our own, and no tool pays to be listed or to rank higher — how we assess fit.

What it does

What the AI actually does — Retrieval-augmented generation over user-uploaded docs, PDFs and YouTube using Gemini; its 'Audio Overviews' turn sources into a two-host podcast.

Why it was built — An AI research assistant grounded strictly in the sources the user provides, to cut hallucination and preserve attribution.

Who built it

Company: Google (Alphabet)
HQ / origin: Mountain View, California, USA
Founded: 2023 (as Project Tailwind; launched Dec 2023)
Model: B2C
Languages: Multiple
Pricing: Freemium (free tier + NotebookLM Plus)

We record durable facts only — no funding-raised or user-count figures. Unverified fields are marked [TBD] rather than guessed.

Where it sits

Google NotebookLM is on the EdTech AI 100 map, in study & homework help, built in United States.

Related & alternatives

Sources

NotebookLM