Question: Is there a tool that enables offline access to a team's knowledge base, without incurring extra storage fees?

If you're looking for a tool that lets you use a team's knowledge base even when offline without having to pay extra for storage, Puzzle Studio is a good choice. The tool marries AI with a peer-to-peer knowledge base, letting teams work together without knowledge silos. It's got a desktop app that works offline so you can get to your data even when your network connection is down. Puzzle Studio is LLM agnostic, so you can use your own models, and there's no extra storage charge, so it's a relatively cheap option.

Another good option is Recall, an information retrieval system that indexes and archives information on the web and stores it in your own knowledge base. It works offline and has security advantages since data is stored on servers in the EU. It's got a free version, but the Plus Plan at $7 per month (billed annually) is probably more useful for professionals or students who want to keep a handle on their work.

If you want a more AI-infused knowledge management tool, Tettra offers an AI-powered knowledge base that helps teams find and contribute company information. It's got features like AI-tagged answers, semantic search and content creation. Tettra integrates with tools like Slack and Microsoft Teams, and it's got a variety of pricing levels for different organizations, including a basic plan at $4/user/month.