Knowledge Bases & Wikis

The knowledge base market splits cleanly into two camps: traditional wikis and docs sites that humans read (Notion, Confluence, Slab, Slite, Tettra), and AI-native platforms where the answers are surfaced by an LLM grounded on your content (AnythingLLM, Guru, Document360 with AI). Most teams pick the wrong one because they evaluate features instead of how their team will actually use the tool. We compare the leading options on per-user pricing, AI search quality, self-host vs SaaS, and which platform fits a 5-person startup vs a 200-person mid-market team.

Notion Atlassian Confluence Guru Document360 Tettra Slite Slab Bloomfire Stack Overflow for Teams AnythingLLM

Top 10 Knowledge Bases for Small & Mid-Sized Companies (2026)

Most 'best knowledge base' lists treat every team like they want the same thing — a wiki with search. They don't. Some teams need a polished docs site that humans read (Notion, Confluence, Slab). Some need a verified, AI-surfaced answer engine for support and sales (Guru, Document360). And a growing number want a private, self-hosted RAG platform where the LLM grounds every answer on their own content with no per-seat fee (AnythingLLM). This guide compares the ten platforms that actually show up on SMB shortlists in 2026, grouped by who's running it and how the team will use it.

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