GleanEnterprise AI that understands your company
vs
Stack AIAI Agents for the Enterprise
Comparison · AI Agents · weekly run Nov 3
Glean vs Stack AI
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Stack AI is the stronger AI pick in AI Agents: it has a visibility score of 1.4 versus 0.9 for Glean.
Choose Glean if…
- AI answers describe it more positively (56% vs 0% positive)
- You need ISO 42001 or TX-RAMP Level 2 coverage
- You prefer a larger, established vendor (501–1,000 employees)
- Enterprise search across many connected apps
Choose Stack AI if…
- You want the brand AI engines rank higher (1.4 vs 0.9)
- You need more native integrations (500+ vs 250+)
- hosted no-code agent builders
- free tiers for experimenting
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Glean | Stack AI |
|---|---|---|
| Visibility score | 0.9% | 1.4% |
| Change vs last week | New | New |
| Rank in AI Agents | #63 | #51 |
| Share of voice | 0.4% | 0.4% |
| Mentions this run | 3 | 3 |
| Positive in AI answers | 56% | 0% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Glean 0pp · Stack AI 0pp over 0 weekly runs.
Engine by engine
Stack AI leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
GleanStack AI
Head to head in AI answers
0 engine answers name both brands
0Glean ranked higher
0Stack AI ranked higher
Features, pricing & fit
| Dimension | Glean | Stack AI |
|---|---|---|
| Pricing model | — | Usage-based |
| Entry price | — | Contact sales |
| Free plan | — | Yes |
| Deployment | Per-customer search model stored in the customer's VPC | Multi-tenant cloud, VPC, or on-premise |
| Integrations | 250+ | 500+ |
| Compliance | ISO 42001, HIPAA, TX-RAMP Level 2, SOC 2 Type II, ISO 27001, GDPR | HIPAA, GDPR, SOC 2 Type II, ISO 27001 |
| Support | Help Center | Community support on Discord, Email support, Priority support, Dedicated support |
| Founded | 2019 | 2023 |
| Headquarters | San Francisco, CA | San Francisco, CA, United States |
| Employees | 501–1,000 | 51–200 |
| Funding | Seed or early-stage round (emerged from stealth) · $765M raised | Series A · $19M raised |
| Best for | Large enterprises that want AI answers and agents grounded in their own permission-aware company data | IT teams and enterprise architecture teams that need to orchestrate, deploy, govern, and scale AI across the enterprise, including finance, risk and operations teams. |
Plans side by side
Glean
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Glean
- Enterprise search across many connected apps
- Seen as a market leader in enterprise search
- Finds answers and internal experts quickly
- Recommended for enterprise-wide knowledge search
Stack AI
- hosted no-code agent builders
- free tiers for experimenting
- solid G2 and Slashdot ratings
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Glean vs Stack AI”, https://slateindex.ai/compare/glean-vs-stack-ai, data of Nov 3, 2026. Licence: CC BY 4.0.