8 Best Glean Alternatives in 2026: Enterprise AI Tools
Glean is the leader in enterprise AI search — connect it to your Slack, Drive, Notion, GitHub, Jira, and Salesforce, and it gives your team a unified search-and-chat layer over everything. It’s a serious tool, with serious pricing to match (typically $40+/user/month at enterprise scale, plus implementation). But the “Glean tells you stuff” model has limits: it surfaces information, but doesn’t take action. And companies are increasingly looking for AI that doesn’t just answer questions — it does the work. Here are eight Glean alternatives across that spectrum.
1. Carly
Carly is an AI agent platform that takes action across 200+ business apps. Where Glean retrieves information, Carly executes tasks: scheduling meetings, replying to emails, updating CRMs, enriching leads, generating reports, creating tickets. Each agent has its own name, email address, custom instructions, and memory.
With 200+ integrations across 40+ categories — CRM (HubSpot, Salesforce, Attio, Pipedrive), project management (Asana, Linear, Monday, ClickUp), messaging (Slack, Discord, Teams), file storage (Google Drive, Dropbox, SharePoint), accounting (QuickBooks, Xero, FreshBooks), and email (Gmail, Outlook) — agents work autonomously across your stack via email.
What makes it different from Glean: Glean is a knowledge layer. Carly is an action layer. Glean answers “what did the team decide about X in Slack last week?” Carly responds to a customer email, updates the CRM, schedules the next meeting, and pings #sales. Many companies use both: Glean for retrieval, Carly for execution.
Best for: Teams who want AI that does work, not just answers questions.
Pricing: $35/month per agent
2. Microsoft Copilot
Microsoft 365 Copilot lives inside Word, Excel, Outlook, Teams, and PowerPoint with cross-app context across your entire Microsoft graph. Strong drafting and summarization. Limited “agent” behavior — it suggests, you act.
What makes it different from Glean: Copilot is built into the apps you already use; Glean is a separate search-and-chat layer. If your team is deep in Microsoft 365, Copilot has tighter integration. If you have a heterogeneous stack (Slack + Notion + Salesforce + GitHub), Glean’s unified retrieval is more useful.
Best for: Microsoft 365-native teams who want AI inside the apps they’re already in.
Pricing: $30/user/month (requires Microsoft 365 subscription)
3. ChatGPT Enterprise
OpenAI’s enterprise tier — unlimited GPT-4 access, longer context windows, no data training, admin console, SSO, and custom GPTs. Connectors to Google Drive, Microsoft 365, GitHub, and others (still expanding).
What makes it different from Glean: ChatGPT Enterprise is general-purpose AI with growing connectors. Glean is purpose-built for cross-app enterprise retrieval with mature permissions handling. ChatGPT is broader; Glean is deeper for the search use case.
Best for: Companies that want general-purpose AI with admin controls and aren’t ready to commit to a search-specific platform.
Pricing: Custom (typically $60/user/month for Enterprise)
4. Notion AI
AI built into Notion. Strong for drafting, summarization, and Q&A across your Notion workspace. Limited to Notion content — no native cross-app search across Slack, Drive, GitHub, etc.
What makes it different from Glean: Cheaper and tighter integration if you live in Notion, but no real cross-app retrieval. Glean indexes everything; Notion AI indexes Notion. Different use case.
Best for: Teams whose institutional knowledge already lives in Notion.
Pricing: $10/user/month (add-on to Notion plans)
5. Dust
AI agent platform for teams. Connectors to Slack, Notion, GitHub, Drive, and a builder for creating custom agents that combine retrieval with actions. Open-source roots, growing developer community. See our Dust alternatives breakdown for context.
What makes it different from Glean: More agent-oriented than search-oriented. You build specialized agents for specific workflows; Glean gives you a generic AI search layer. Dust is closer to Carly conceptually but more developer-focused.
Best for: Teams who want to build custom AI agents on top of their internal data.
Pricing: From $29/user/month
6. Coveo
Enterprise search platform with AI relevance ranking. Older and more mature than Glean, with deeper customization for support, ecommerce, and intranet search. Sales-led, enterprise pricing.
What makes it different from Glean: Coveo is the legacy enterprise search vendor; Glean is the AI-native upstart. Coveo has more customization and ecommerce capabilities; Glean has better out-of-the-box conversational search.
Best for: Enterprises with complex search needs across customer-facing surfaces, not just internal tools.
Pricing: Custom (typically $5K+/year)
7. Guru
Knowledge management with AI assistance. Different angle: Guru is about curating trusted knowledge cards, not just retrieving anything that matches. Browser extension, Slack integration, and AI-powered Q&A on top of curated content.
What makes it different from Glean: Curated knowledge instead of full-corpus search. If your team’s pain is “we have answers buried in Slack but no one trusts what surfaces,” Guru’s verification model fits. Glean indexes everything; Guru indexes what’s been blessed.
Best for: Customer support and sales teams who need verified, current answers.
Pricing: From $15/user/month
8. Mem
AI-native notes app with strong search and connections. More personal-knowledge than enterprise-search, but the AI features are useful for anyone who wants Glean-style retrieval over their own notes and connected accounts.
What makes it different from Glean: Personal-first. Glean is for teams; Mem is for individuals (with growing team features). If you’re an individual or small team and Glean’s pricing is overkill, Mem covers many of the same retrieval needs.
Best for: Individuals and small teams who want AI-powered personal/team knowledge management.
Pricing: From $14/user/month
Glean Alternatives Compared
| Tool | Approach | Cross-App Search | Takes Actions | Starting Price |
|---|---|---|---|---|
| Carly | AI agents via email | Limited (200+ apps) | Yes | $35/mo |
| Microsoft Copilot | In-app AI | Yes (M365 only) | Limited | $30/user/mo |
| ChatGPT Enterprise | General AI | Limited | Limited | ~$60/user/mo |
| Notion AI | Workspace AI | No | No | $10/user/mo |
| Dust | AI agent platform | Yes | Yes | $29/user/mo |
| Coveo | Legacy enterprise search | Yes | No | Custom |
| Guru | Curated knowledge | Limited | No | $15/user/mo |
| Mem | Personal AI notes | Limited | No | $14/user/mo |
FAQ
Glean alternative that takes action, not just answers? Carly is the closest fit. Where Glean retrieves information, Carly executes tasks — scheduling, replying, updating CRMs, enriching leads. Some teams use both.
Cheapest Glean alternative? Notion AI ($10/user) if you live in Notion. Microsoft Copilot ($30/user) if you’re on M365. Glean’s pricing is enterprise-grade; most alternatives are cheaper unless you go to ChatGPT Enterprise.
What’s the best for a small team? Carly for AI execution. Notion AI if your knowledge is in Notion. Mem for personal/small-team retrieval. Glean is overkill below ~50 employees.
Glean vs Microsoft Copilot — which is better? Glean if your stack is heterogeneous (Slack + Notion + Drive + GitHub). Copilot if you’re Microsoft 365-native and want AI inside Word/Outlook/Teams.
What about ChatGPT Enterprise as a Glean replacement? ChatGPT Enterprise’s connectors are catching up but Glean is still ahead on permissioned retrieval across many sources. ChatGPT is broader; Glean is deeper for search.
More: Best AI agents for productivity · Best AI executive assistants · What are AI agents · Dust alternatives · What Carly can do
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