AnythingLLM and Glean both let teams search and query internal documents using AI, but they serve different deployment models and budgets.
AnythingLLM is the stronger choice when data residency requirements, privacy constraints, or budget limits make a managed enterprise AI search tool impractical. It gives teams full control over which LLM provider processes their queries, and all document data stays on the team's own servers. The MIT license means any number of users can run it with no per-seat costs or vendor lock-in.
Glean is worth evaluating when your organization needs deep out-of-the-box integrations with SaaS applications (Google Workspace, Salesforce, Jira), enterprise SSO and compliance audit logging, and fully managed infrastructure with SLA guarantees. For those requirements, the additional cost of Glean may be justified.
A second alternative worth comparing is ChatGPT Enterprise. AnythingLLM matches it on document Q&A capability but runs entirely on your infrastructure, with no document contents sent to OpenAI servers. The trade-off is that AnythingLLM requires self-managed deployment; ChatGPT Enterprise is fully managed with Microsoft-grade uptime guarantees.