Company Second Brain vs a Company Wiki

A knowledge assistant does not replace content ownership

A wiki is a place to create, organize, and maintain information. An AI knowledge layer can retrieve across approved sources and synthesize an answer. These roles can complement each other; unreliable documentation remains unreliable when accessed through AI.

Compare the experience you need

Start with the questions employees ask and where the answers live. If navigation and maintenance are the main problems, improve those first. If answers require connecting information across repositories, a governed retrieval layer may help.

Keep evidence and access visible

Require citations that open the supporting material. Test source permissions for different roles and define how updates and deletions propagate. Users should be told when there is not enough evidence to answer.

Measure verified answers

Compare time to a correct answer before and after a pilot. Include citation accuracy, adoption, source freshness, and ongoing maintenance effort. Avoid treating the volume of AI responses as a measure of useful knowledge.