Notion AI vs Glean: Which AI agent is better?
Compare pricing, AI models, integrations, security posture, pros, cons, and buyer fit before choosing the right AI productivity agent for your workflow.
Verdict: Notion AI vs Glean
Pick Notion AI if you need autonomous multi-step agents. Pick Glean if you need ai-powered enterprise workplace search across slack, gdrive, jira, and 100+ apps.
Glean supports 3 models.
Glean integrates with 13 platforms.
Notion AI
Notion 3.0 Agents represent a major evolution, capable of executing 20+ minute multi-step actions autonomously—taking on entire projects like updating hundreds of pages, reorganizing databases, or pro...
- Notion 3.0 Agents execute 20+ minute multi-step workflows
- Q&A synthesizes across all pages and databases
- Summarization, translation, action item extraction
- Autofill for database AI content generation
- Meeting Notes block with decisions and tasks extraction
- Autonomous agents handle complex multi-step projects
- Deep integration across entire Notion workspace
- Multi-model support optimizes for different tasks
- AI responses limited on free tier
- Full value requires comprehensive Notion adoption
Glean
Glean is the leading enterprise AI work assistant — a search-and-answer engine that indexes your company's entire content footprint (Slack, Google Drive, Confluence, Notion, Jira, GitHub, Salesforce, ...
- Indexes 100+ enterprise apps with permission-aware retrieval
- Glean Assistant: chat with your company's entire knowledge
- Glean Protect: real-time DLP + sensitive-data classification
- Glean Agents: build custom AI workflows on company data
- Cross-app search results sorted by personal relevance
- Permission-aware retrieval — no data-leakage risk across employees
- 100+ integrations cover most enterprise stacks out of the box
- Cited answers ground AI in your actual company knowledge (not hallucinated)
- Premium pricing — typical mid-market commitments start ~$30-50/employee/year
- Sales-led with no transparent pricing or self-serve trial
Who should buy this
Notion AI
- Solo founder or knowledge worker using Notion as primary workspace
- Mid-market product / engineering team building docs, wikis, and PMOs in Notion
- Enterprise needing AI grounded in their internal documentation
- Teams not on Notion (AI assistant only valuable inside Notion)
- Buyers needing on-prem deployment (cloud-only)
Solo: Free tier or $10/seat Plus. Team: $20/seat Business (full AI + GPT-4.1 + Claude). Enterprise: custom (advanced security + audit logs).
Verified 2026-05-03
Glean
- Mid-market or enterprise CIO / CTO consolidating internal AI search
- Knowledge worker drowning in Slack threads + scattered docs across 20+ apps
- IT / security org wanting AI search WITH permission enforcement (not retroactive cleanup)
- SMBs and startups (cost prohibitive — ChatGPT Team or Notion AI fit better)
- Teams not on a sprawling app stack (Glean shines with 10+ data sources)
Enterprise per-employee licensing — typically $30-50/employee/year (mid-market) to $100+/employee/year (large enterprise). Glean Protect + Agents are additional.
Verified 2026-05-03
Capabilities at a glance
| Capability | Notion AI | Glean |
|---|---|---|
| AI writing + summarization in any page | — | |
| Custom Agents (Notion AI Q&A across workspace) | — | |
| Multi-model (GPT-4.1, Claude) | Business tier | — |
| Database AI fill | — | |
| Public API | ||
| On-prem / self-hosted | VPC deployment for select customers | |
| 100+ enterprise app integrations | — | |
| Permission-aware retrieval | — | Inherits source ACLs |
| Cited / sourced AI answers | — | |
| Glean Protect (DLP + sensitive-data) | — | Add-on |
| Glean Agents (custom workflows) | — | Add-on |
| Slack / Teams native apps | — |
Security & compliance
| Standard / control | Notion AI | Glean |
|---|---|---|
| SOC 2 | Type II | Type II |
| ISO 27001 | ||
| HIPAA | — | |
| GDPR | ||
| SSO / SAML | ||
| RBAC | ||
| Audit logs | ||
| Trains on customer data | No | No |
What users say
Glean
Plaid, Pinterest, Redis, Zapier, Databricks, Webflow, Grammarly, Duolingo, WealthSimple, Citi, Intuit, Samsung, Booking.com, Instacart, Zillow, Rivian, Samsara
Frequently asked questions
What AI models do Notion AI and Glean use?+
Notion AI runs on GPT-4.1, Claude Sonnet 4. Glean runs on GPT-4 family, Claude family, Glean proprietary retrieval models.
What is the main difference between Notion AI and Glean?+
Notion AI is positioned as best for autonomous multi-step agents, while Glean is positioned as best ai-powered enterprise workplace search across slack, gdrive, jira, and 100+ apps. Pick the one whose strength aligns with your primary use case.
Which has better integrations, Notion AI or Glean?+
Notion AI integrates with Slack, GitHub, Google Drive, Figma and 3 more. Glean integrates with Slack, Microsoft Teams, Google Drive, Notion and 9 more.
What are the main weaknesses of Notion AI and Glean?+
Notion AI's main drawback: ai responses limited on free tier. Glean's main drawback: premium pricing — typical mid-market commitments start ~$30-50/employee/year.
Are Notion AI and Glean worth it in 2026?+
Both remain competitive productivity options in 2026. Notion AI stands out for autonomous agents handle complex multi-step projects. Glean stands out for permission-aware retrieval — no data-leakage risk across employees. Choose based on which trade-offs fit your workflow and budget.