Glean vs Notion

Which one do AI engines recommend, and how do they differ on price, fit and features?

The short answer

Notion is the stronger AI pick in Knowledge Management: it has a visibility score of 57.4 versus 16.2 for Glean, and ranks ahead in 70% of the answers that name both.

Choose Glean if…

AI answers describe it more positively (56% vs 40% positive)
You need ISO 42001 or TX-RAMP Level 2 coverage
Enterprise search across many connected apps
Seen as a market leader in enterprise search

Choose Notion if…

You want the brand AI engines rank higher (57.4 vs 16.2)
You need ISMAP or BSI C5 or ISO 27017 or ISO 27018 or ISO 27701 or CCPA coverage
flexible all-in-one workspace
strong for knowledge management and team wikis

AI visibility side by side

Latest weekly run · Nov 3

Metric	Glean	Notion
Visibility score	16.2%	57.4%
Change vs last week	New	New
Rank in Knowledge Management	#6	#1
Share of voice	4.1%	10.9%
Mentions this run	22	58
Positive in AI answers	56%	40%

The stronger value in each row is marked with a ✓.

Visibility score trend

Weekly runs over the last 60 days

Glean 0pp · Notion 0pp over 0 weekly runs.

Engine by engine

Notion leads on 3 of 3 engines

ChatGPT

18%

61.9%

AI Mode

16.7%

62.6%

Perplexity

13.9%

47.8%

GleanNotion

Head to head in AI answers

20 engine answers name both brands

6Glean ranked higher

14Notion ranked higher

Prompt	Engine	Glean	Notion
How do I choose a knowledge management tool for a mid-market team?	ChatGPT	#7	#3
How do I choose a knowledge management tool for a mid-market team?	AI Mode	#5	#1
How do I choose a knowledge management tool for a mid-market team?	Perplexity	#6	#2
What should a knowledge management tool integrate with?	AI Mode	#6	#7
What are the best Knowledge Management tools in 2026?	ChatGPT	#3	#1
What are the best Knowledge Management tools in 2026?	AI Mode	#4	#8
What are the best Knowledge Management tools in 2026?	Perplexity	#4	#3
Top knowledge management tool options for B2B SaaS companies	ChatGPT	#4	#1
Top knowledge management tool options for B2B SaaS companies	Perplexity	#7	#4
Best knowledge management tool for enterprise	ChatGPT	#1	#7
Best knowledge management tool for enterprise	AI Mode	#1	#4
Best knowledge management tool for enterprise	Perplexity	#1	#8

Features, pricing & fit

Dimension	Glean	Notion
Pricing model	—	Per seat
Entry price	—	Free; paid from $10 per seat / mo
Free plan	—	Yes
Deployment	Per-customer search model stored in the customer's VPC	Cloud-hosted, with web, desktop and mobile apps
Integrations	250+	—
Compliance	ISO 42001, HIPAA, TX-RAMP Level 2, SOC 2 Type II, ISO 27001, GDPR	SOC 2 Type II, ISO 27001, ISMAP, BSI C5, ISO 27017, ISO 27018, ISO 27701, HIPAA, GDPR, CCPA
Support	Help Center	Help button in the app, Priority support, Premium support (custom), Customer success manager (Enterprise)
Founded	2019	2016
Headquarters	San Francisco, CA	San Francisco, California, United States
Employees	501–1,000	501–1,000
Funding	Seed or early-stage round (emerged from stealth) · $765M raised	Tender offer · $335M raised
Best for	Large enterprises that want AI answers and agents grounded in their own permission-aware company data	Individuals, small teams, growing businesses and enterprises that want docs, databases and AI agents in one workspace