Omphalis vs NotebookLM
Two ways to work with your sources.
NotebookLM is now called Gemini Notebook. Google announced the new name in July 2026. We use the familiar NotebookLM name below.
NotebookLM and Omphalis both let you ask questions about sources and follow citations back to them. NotebookLM also offers several ways to study the material. Omphalis puts reading, explanations, notes and narration together around the source you have open.
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Disclosure: this comparison is written by Omphalis about its own product, so it is not a neutral review. We are not paid by NotebookLM or by anyone else to be compared favourably, this page carries no affiliate links, and every claim about NotebookLM is checked against their own public documentation. Read the full disclosures, and tell us if something here has gone out of date.
Checked September 5, 2026 against Google's NotebookLM guide and Audio Overview documentation.
A notebook in Omphalis
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Compare the task you came to do
| Task | NotebookLM | Omphalis |
|---|---|---|
| Questions | Questions across notebook sources, with inline citations. | Ask about a source or notebook, with citations you can check. |
| Reading | Work with uploaded sources and explore the passages behind an answer. | Read a cleaned source with section navigation, in-place explanations and your own notes. |
| Listening | Audio Overviews discuss, summarize, critique or debate the sources. | Listen to a source in a natural spoken form, with text cleaned for narration. |
| Study material | Generate study guides, briefings, mind maps and other formats from sources. | Work through the source, gather notes in a notebook, or follow a course built from sources. |
Our suggestion: if you want an Audio Overview or several study formats from a group of sources, try NotebookLM. If you want help while reading the original text, try the Omphalis reader with one source you already know. Check both products' answers against their citations.
Try the reader without an account →Before you choose
Is Omphalis a NotebookLM alternative?
For some tasks, yes. Both support questions grounded in sources. Try Omphalis if your main task is reading or listening to a source, opening explanations as you go, and keeping notes with the material.
Does Omphalis summarize my documents?
Omphalis can provide summaries to help you get oriented. The full source remains available for reading, explanations, questions and notes.
Is listening the same in both products?
NotebookLM's Audio Overviews discuss your sources in formats such as a deep dive or brief. Omphalis offers natural narration of a source, with text prepared for listening.
Written by Omphalis teamLast updated