Hebbia
Paid
AI for finance and legal teams to analyze thousands of documents at once, with full citations.
All tools
Google NotebookLM
Google's research notebook that answers from your own sources and can turn them into audio overviews.
About Google NotebookLM
NotebookLM lets you gather documents, web pages, videos and notes into a notebook and then ask questions that are answered only from those sources, with citations. That grounding makes it a trusted choice for research.
Its best-known feature is Audio Overview, which turns your material into a conversation between two AI hosts. It can also create study guides, briefing documents, timelines and mind maps.
NotebookLM has a free tier and paid options through Google plans. Students, writers and analysts use it to learn from a pile of material quickly.
Standout features
- Source-grounded answers
- Citations
- Audio Overviews
- Study guides and briefings
- Mind maps
- Many source types
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Freemium
AI document processing with OCR and workflow automation for invoices, receipts and forms.
Docsumo
Paid
Document AI that extracts data from invoices, bank statements and forms for finance teams.
An AI assistant built into Acrobat that summarizes PDFs and answers questions about them.
AskYourPDF
Freemium
Ask questions about PDFs and other documents, and get cited, summarized answers.
PDF.ai
Freemium
Chat with any PDF and get quick answers, summaries and cited passages.
