SurfSense

What it is

SurfSense is an open-source framework that allows you to connect large language models (LLMs) with your internal data sources, enabling real-time collaboration and querying within teams. It serves as a powerful alternative to proprietary solutions like NotebookLM, Perplexity, and Glean.

SurfSense stands out as an open-source, self-hosted solution that allows teams to connect LLMs with their internal knowledge sources in real-time, offering flexibility and control not found in proprietary alternatives.

When it fits — and when it doesn’t

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

1. 01

   Limited integrations with non-Python data sources

   Primary support is for Python-based data sources, limited documentation on integrating other languages

2. 02

   Performance issues under high load

   Real-time collaboration can lag when multiple users query large datasets simultaneously

What it does well

• Connects LLMs to internal knowledge sources in real-time.

• Facilitates team collaboration and querying within the same environment.

• Open-source alternative to proprietary solutions.

Pricing

Free tier

YesOpen source — free to use

Paid from

$0

Model

Flat rate

Enterprise plan

No

Pricing not independently confirmed — check the vendor’s page.