N 
NotebookLM
Grounded research notebooks that turn your sources into audio overviews.
NOT REALLY
why this verdict
Keep it — Google has not replaced it
Google's version overlaps, but does not finish the research job, so this one is still worth keeping open.
- A named launch, not a vibe named, unlinked
- It is the thing doing the killing. Google, September 11, 2024 — no announcement link recorded yet.
- How much of the job it covers not the job editorial call
- Parts of it. The job still needs the tool to get finished.
- Is there a free way to do it? yes
- 1 of 2 listed replacements have a usable free tier: ChatGPT.
- What the call is worth nothing to cancel
- No paid entry tier tracked, so there is no subscription to cancel.
Reason composed from the fields above missing: announcement linked recorded: free replacement listed recorded: two or more escape hatches
- Threatened by
- Since
- September 11, 2024
- List price
- free
- Per year
- —
The backstory
NotebookLM answers only from documents you upload, with citations, which is why students and researchers trust it more than a general chatbot. Audio Overviews — two synthetic hosts discussing your files — was the feature that made it a phenomenon and quietly devalued a lot of summarisation SaaS.
Escape hatches
C 
Claude Projects Similar grounded document chat.
claude.com open_in_new C 
ChatGPT Projects with file search.
chatgpt.com open_in_new1 of 2 replacements have a usable free tier.