Glean vs KMS Lighthouse

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 2.4 for KMS Lighthouse, and ranks ahead in 75% of the answers that name both.

Choose Glean if…

You want the brand AI engines rank higher (16.2 vs 2.4)
You need ISO 42001 or HIPAA or TX-RAMP Level 2 or GDPR coverage
You prefer a larger, established vendor (501–1,000 employees)
Enterprise search across many connected apps

Choose KMS Lighthouse if…

Usability and advanced search
Configurable workflows and feedback management
Integrations
Well suited to midsize and large enterprises

AI visibility side by side

Latest weekly run · Nov 3

Metric	Glean	KMS Lighthouse
Visibility score	16.2%	2.4%
Change vs last week	New	New
Rank in Knowledge Management	#6	#27
Share of voice	4.1%	0.9%
Mentions this run	22	5
Positive in AI answers	56%	—

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

Visibility score trend

Weekly runs over the last 60 days

Glean 0pp · KMS Lighthouse 0pp over 0 weekly runs.

Engine by engine

Glean leads on 3 of 3 engines

ChatGPT

18%

1.9%

AI Mode

16.7%

Perplexity

13.9%

5.4%

GleanKMS Lighthouse

Head to head in AI answers

4 engine answers name both brands

3Glean ranked higher

1KMS Lighthouse ranked higher

Prompt	Engine	Glean	KMS Lighthouse
Best knowledge management tool with AI features	Perplexity	#2	#8
Which Knowledge Management vendors do analysts recommend?	ChatGPT	#5	#12
Which Knowledge Management vendors do analysts recommend?	Perplexity	#9	#6
Official website of the top knowledge management tool vendors	ChatGPT	#5	#13

Features, pricing & fit

Dimension	Glean	KMS Lighthouse
Deployment	Per-customer search model stored in the customer's VPC	SaaS
Integrations	250+	—
Compliance	ISO 42001, HIPAA, TX-RAMP Level 2, SOC 2 Type II, ISO 27001, GDPR	SOC 2 Type II, ISO 27001
Support	Help Center	—
Founded	2019	—
Headquarters	San Francisco, CA	Petach Tikva, Israel
Employees	501–1,000	201–500
Funding	Seed or early-stage round (emerged from stealth) · $765M raised	Incubator/Accelerator (weXelerate)
Best for	Large enterprises that want AI answers and agents grounded in their own permission-aware company data	Banks, insurers, health plans and public services, where every answer has to be right.