Glean vs Slab

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

The short answer

Glean is the stronger AI pick in Knowledge Management: it has a visibility score of 16.2 versus 13.6 for Slab, and ranks ahead in 60% of the answers that name both.

Choose Glean if…

You want the brand AI engines rank higher (16.2 vs 13.6)
AI answers describe it more positively (56% vs 45% positive)
You need ISO 42001 or HIPAA or TX-RAMP Level 2 or SOC 2 Type II or ISO 27001 coverage
You prefer a larger, established vendor (501–1,000 employees)

Choose Slab if…

You need SOC 2 Type 2 or SOC 3 coverage
Clean interface and unified search across tools
Clear public pricing
Free tier for up to 10 users

AI visibility side by side

Latest weekly run · Nov 3

Metric	Glean	Slab
Visibility score	16.2%	13.6%
Change vs last week	New	New
Rank in Knowledge Management	#6	#9
Share of voice	4.1%	3.5%
Mentions this run	22	20
Positive in AI answers	56%	45%

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

Visibility score trend

Weekly runs over the last 60 days

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

Engine by engine

Glean leads on 2 of 3 engines

ChatGPT

18%

16.7%

AI Mode

16.7%

5.2%

Perplexity

13.9%

19.1%

GleanSlab

Head to head in AI answers

5 engine answers name both brands

3Glean ranked higher

2Slab ranked higher

Prompt	Engine	Glean	Slab
How do I choose a knowledge management tool for a mid-market team?	ChatGPT	#7	#6
How do I choose a knowledge management tool for a mid-market team?	Perplexity	#6	#3
What are the best Knowledge Management tools in 2026?	ChatGPT	#3	#6
Top knowledge management tool options for B2B SaaS companies	ChatGPT	#4	#8
Top knowledge management tool options for B2B SaaS companies	Perplexity	#7	#10

Features, pricing & fit

Dimension	Glean	Slab
Pricing model	—	Per seat
Entry price	—	Free; paid from $6.67 per seat / mo
Free plan	—	Yes
Deployment	Per-customer search model stored in the customer's VPC	Cloud-hosted on Google Cloud Platform
Integrations	250+	—
Compliance	ISO 42001, HIPAA, TX-RAMP Level 2, SOC 2 Type II, ISO 27001, GDPR	SOC 2 Type 2, SOC 3, GDPR
Support	Help Center	Help Center, Contact support, Email, Chat
Founded	2019	2016
Headquarters	San Francisco, CA	San Francisco, California
Employees	501–1,000	11–50
Funding	Seed or early-stage round (emerged from stealth) · $765M raised	Undisclosed round (unverified) · $2M raised
Best for	Large enterprises that want AI answers and agents grounded in their own permission-aware company data	Non-technical and tech-savvy teams that want to share company knowledge in one place.