Omphalis vs NotebookLM
NotebookLM answers your sources. Omphalis keeps you in them.
NotebookLM is strong at asking questions of a set of documents, with a good audio overview of what you uploaded. But it works beside your sources, as a place to query them and get back answers, and it is built around a notebook session, not a library you return to for months. Omphalis is the durable home those sources live in.
Join as a founding member while spots remain: 90 days of full Premium, early access, and direct support. When the 90 days end, the free plan stays free.
What NotebookLM is great at
Asking questions of sources you upload and getting grounded answers, a strong audio overview, and getting oriented quickly on an unfamiliar stack of material.
Where Omphalis is different
Omphalis keeps the sources as a durable library. Each one becomes a faithful, cleaned page; the narration reads the actual text, word for word, rather than a generated summary; the key moments are surfaced; and there is a way back to the exact passage weeks later, with the reason you saved it intact. It keeps you in the source, not beside it.
And it compounds. What you keep connects over time, and Omphalis can build a structured course on a topic from openly licensed sources, with every source credited, something a notebook of your own uploads cannot do.
Which to use
They sit happily side by side.
Use NotebookLM to interrogate a set of documents in the moment. Use Omphalis as the durable place those documents, and everything else you save, are read, listened to, and returned to. See the wider picture on the comparison page.
Keep your sources, and actually return to them.
Join as a founding member while spots remain: 90 days of full Premium, early access, and direct support. When the 90 days end, the free plan stays free.