Glean vs Notion AI

Detailed side-by-side comparison to help you choose the right tool

Glean

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Knowledge Management

Enterprise Work AI platform: a permissions-aware search index across 100+ SaaS apps, an Assistant that answers questions over company knowledge, plus an Agent Builder for no-code horizontal AI agents.

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Starting Price

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Notion AI

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Productivity

Notion AI is the AI layer inside Notion’s workspace: docs, knowledge bases, projects, databases, meeting notes, and team search. The fetched product page positioned it as “Meet your 24/7 AI team” and highlighted agents, enterprise search, AI Meeting Notes, and admin controls. That framing is important because Notion AI is not just a generic chatbot. Its main advantage is context: it can work where teams already store

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Feature Comparison

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FeatureGleanNotion AI
CategoryKnowledge ManagementProductivity
Pricing Plans40 tiers94 tiers
Starting PriceContact
Key Features
  • • Enterprise search across workplace apps, documents, conversations, and knowledge bases
  • • AI assistant for asking questions against company knowledge with permission-aware retrieval
  • • Agent and workflow capabilities for automating knowledge-heavy internal tasks
  • • AI writing, summarization, rewriting, and brainstorming inside Notion pages
  • • Workspace search and Q&A across connected Notion knowledge
  • • Database help for turning raw notes into plans, tables, tasks, and summaries

Glean - Pros & Cons

Pros

  • ✓Permissions-aware index across 100+ SaaS connectors is the cleanest ACL-respecting implementation in enterprise Work AI
  • ✓BYO-LLM model layer avoids vendor lock-in and lets security pick the model and region
  • ✓Pre-built agent marketplace plus no-code Agent Builder lets IT roll out common workflows without writing code

Cons

  • ✗Sales-led pricing with no public per-seat list price slows budget approvals (this entry needs manual pricing verification)
  • ✗Deployment is real work — connector configuration, ACL validation, and rollout commonly take weeks
  • ✗No first-party MCP server; MCP-style tool integrations require custom adapters built over the Glean API

Notion AI - Pros & Cons

Pros

  • ✓Convenient for teams already living in Notion
  • ✓Combines knowledge base, docs, projects, and AI assistance in one workspace
  • ✓Enterprise search and meeting notes address common knowledge-work pain points
  • ✓Low adoption friction for non-technical users

Cons

  • ✗Most valuable when source content in Notion is accurate and well structured
  • ✗Not a replacement for a dedicated BI, CRM, or engineering automation system
  • ✗Pricing and AI entitlements should be verified because packaging changes
  • ✗Teams need permissions hygiene to avoid exposing sensitive workspace content

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🔒 Security & Compliance Comparison

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Security FeatureGleanNotion AI
SOC2✅ Yes—
GDPR✅ Yes—
HIPAA——
SSO✅ Yes—
Self-Hosted❌ No—
On-Prem❌ No—
RBAC✅ Yes—
Audit Log✅ Yes—
Open Source❌ No—
API Key Auth✅ Yes—
Encryption at Rest✅ Yes—
Encryption in Transit✅ Yes—
Data ResidencyUS—
Data Retentionconfigurable—
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Review GleanReview Notion AI