Frequently asked questions

• Before you access NotebookLM, make sure you verify your age in your Google Account. Learn how to access age-restricted content and features.
• Check if your country is supported in the 180+ regions where Gemini app is available.
• If you use a work or school email address and can't access the app, learn how to turn additional Google services on or off. To turn on the NotebookLM app, work with your workspace admin.

• Businesses, schools and universities, organizations, and enterprise users can access higher limits and expanded features with enterprise-grade data protection through:
  • Google Workspace
  • Google Workspace for Education
  • Google Cloud
• If you use a work or school email address and can't access the app, learn how to turn additional Google services on or off. To turn on the NotebookLM app, work with your workspace admin.
• Learn more about using NotebookLM with a work or school Google account. 

Sometimes NotebookLM can’t answer your question because of:

• Safety flags: The content of your source contains language that triggers a safety flag. This occurs with sensitive topics like violence, sexuality, or obscenity, even in historical contexts.
• Unclear phrases: When your notebook contains many sources, NotebookLM retrieves the most relevant information based on your question, then builds a response from it. A specific question helps NotebookLM locate the most relevant pieces of information.
  • Tip: Make your question more precise and understandable.
• Information not in sources: NotebookLM answers questions based on the information provided in your uploaded sources. If the answer isn't in the source material, it won't provide a response.

If you think a response generated in NotebookLM is offensive or unsafe, let us know.

To report a response, select thumbs down Offensive/unsafe Submit.

We’ll review the report and take appropriate actions to improve the safety of our model.  

If you find content in a privately shared notebook that violates the law, let us know by either opening the settings menu in your notebook and selecting Report Notebook or by visiting this direct link.

We’ll review the material and consider if we’ll block, limit, or remove access to it.

Tip: You can also report through report content on Google.

With NotebookLM, you:

• Get 100 notebooks, with up to 50 sources each and 500,000 words each.
• Have daily limits of 50 chat queries and 3 audio generations.

Learn more about upgrading NotebookLM to increase your limits.

Sources can’t be imported into NotebookLM if:

• It exceeds the allowed 500,000 word limit per source.
• The file size exceeds the allowed 200MB limit.
• Your original PDF file is copy-protected.

• Notes: Only when you specifically select it.
• Sources: Always used in either the entire set or the subset you select.
• Conversation history: Used to generate responses.