ByteBrief
We're a portrait publication through and through. Turn your phone back and your briefing picks up right where you left it.
(We tried widescreen once. It wasn't us.)

SurfSense is the best open-source NotebookLM alternative of three tested. It supports 100+ LLMs, 50+ file formats, and 27+ connectors including YouTube. Open Notebook requires Docker setup and runs slowly on local models. AnythingLLM lacks notes panels and podcast features.
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Summary by ByteBrief