Notion AI vs Glean

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

Notion AI

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Productivity

Notion AI is the AI layer inside Notion for workspace search, writing, meeting notes, database help, and agents. It is strongest for teams that already keep docs, projects, decisions, and knowledge bases in Notion, where AI can use existing workspace context instead of forcing users into a separate chatbot.

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Starting Price

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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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Feature Comparison

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FeatureNotion AIGlean
CategoryProductivityKnowledge Management
Pricing Plans222 tiers40 tiers
Starting PriceContact
Key Features
  • 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
  • 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

Notion AI - Pros & Cons

Pros

  • Works directly inside Notion pages, databases, projects, and knowledge bases, reducing the need to copy content into a separate AI chat tool.
  • The supplied product-page framing highlights agents, enterprise search, AI Meeting Notes, and admin controls, which map to real team knowledge-work problems rather than only generic text generation.
  • Free trial access makes initial testing practical before committing to the current plan pricing noted in the supplied review data.
  • Strong fit for teams that already use Notion as their shared workspace for plans, decisions, specs, tasks, and meeting notes.
  • Can turn unstructured notes into more usable workspace artifacts such as summaries, project updates, database fields, and follow-up tasks.
  • Compared to many standalone productivity tools in our 870+ tool directory, Notion AI benefits from being embedded where the source knowledge and final documents already live.

Cons

  • The AI is only as useful as the underlying Notion workspace; stale pages, duplicated docs, and unclear ownership can lead to weak or misleading answers.
  • It is less useful for companies whose knowledge mainly lives outside Notion unless those systems are connected, migrated, or summarized into Notion.
  • The supplied data notes plan-based AI packaging and custom Agent credits, so teams need to verify current plan entitlements before budgeting.
  • Notion AI is not a full replacement for dedicated BI, CRM, engineering workflow, or production automation systems.
  • Workspace-wide AI makes permissions hygiene important; sensitive HR, finance, legal, and customer information should be reviewed before broad rollout.

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

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🔒 Security & Compliance Comparison

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Security FeatureNotion AIGlean
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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