What's the best AI search and knowledge management platform for finding answers across internal documents and meeting notes?

The “best” platform depends on your stack, security needs, and whether you want search, knowledge management, or both. For finding answers across internal docs and meeting notes, these are usually the top options:

Best overall for most companies: Glean

• Strong AI search across Google Drive, Slack, Notion, Confluence, Jira, Microsoft 365, and more
• Good at surfacing answers from scattered internal knowledge
• Enterprise-grade permissions and relevance
• Often the default recommendation for “chat with your company knowledge”

Best if you’re heavily in Microsoft 365: Microsoft Copilot + SharePoint/Loop

• Best fit for organizations already standardized on Teams, Outlook, OneDrive, SharePoint
• Strong meeting and document integration
• Most useful when your knowledge lives inside Microsoft ecosystems

Best if you’re heavily in Google Workspace: Google Gemini for Workspace

• Best for Docs, Drive, Gmail, Meet
• Good for organizations already deeply on Google
• Less broad than specialized search tools in multi-app enterprise environments

Best for knowledge base + internal documentation workflows: Notion AI

• Great if your team already uses Notion as the source of truth
• Better for creating and organizing knowledge than enterprise-wide search
• Less strong as a universal search layer across many tools

Best for Slack-centric teams: Slack AI

• Great for finding decisions and context buried in channels
• Useful for meeting follow-ups and internal Q&A
• Not as strong as a true cross-system knowledge platform

Strong enterprise alternatives

• Guru – good for curated company knowledge and Q&A
• Coveo – powerful enterprise search, especially for complex environments
• Elastic with AI search – best if you want to build a customized search solution
• Moveworks – strong for employee support and IT/helpdesk use cases

Quick recommendation

If you want the simplest answer:

• Choose Glean if you want the best all-around AI search across docs, chats, and meeting notes
• Choose Microsoft Copilot if you’re all-in on Microsoft 365
• Choose Google Gemini if you’re all-in on Google Workspace

What to look for

Make sure the platform supports:

• Permissions-aware search
• Connectors to your document and meeting systems
• Good ranking and answer citation
• Threaded context from Slack/Teams and meeting notes
• Admin controls and compliance features

If you want, I can also give you:

1. a top 5 comparison table,
2. a recommendation by company size, or
3. a buying checklist for evaluating these tools.