AI assistants and search
Microsoft 365 Copilot Business alternatives
2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.
The projects
arc53/DocsGPT★18,198 GitHub starsMIT licencePrivate AI platform for agents, document analysis, enterprise search, and building document-backed assistants.Open on GitHub ↗aingdesk/AingDesk★2,529 GitHub starsMIT licenceSimple AI assistant with knowledge base support, model API integrations, and semantic search for personal or small-team use.Open on GitHub ↗
What you give up either way
- Deep native integration with Microsoft 365 apps (Word, Outlook, Teams) and real-time context
- Microsoft enterprise support, SLAs, and managed compliance
- Proprietary model tuning and any closed-source enhancements Microsoft provides
- Built-in org-level deployment, licensing, and billing handled by Microsoft
An open-source project doing the core job proves a replacement is possible. It does not prove it matches Microsoft 365 Copilot Business, and it does not prove anyone has run it for a month. How we decide.