GleanEnterprise AI that understands your company
vs
PostgreSQLThe world's most advanced open source database
Comparison · AI Agents · weekly run Nov 3
Glean vs PostgreSQL
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
PostgreSQL is the stronger AI pick in AI Agents: it has a visibility score of 2.3 versus 0.9 for Glean.
Choose Glean if…
- AI answers describe it more positively (56% vs 35% positive)
- You need ISO 42001 or HIPAA or TX-RAMP Level 2 or SOC 2 Type II or ISO 27001 or GDPR coverage
- You prefer a larger, established vendor (501–1,000 employees)
- Enterprise search across many connected apps
Choose PostgreSQL if…
- You want the brand AI engines rank higher (2.3 vs 0.9)
- Free open-source software
- Adds vector search to an existing PostgreSQL database without a new database
- Wide compatibility with drivers, BI tools, and language ecosystems
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Glean | PostgreSQL |
|---|---|---|
| Visibility score | 0.9% | 2.3% |
| Change vs last week | New | New |
| Rank in AI Agents | #63 | #38 |
| Share of voice | 0.4% | 0.8% |
| Mentions this run | 3 | 5 |
| Positive in AI answers | 56% | 35% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Glean 0pp · PostgreSQL 0pp over 0 weekly runs.
Engine by engine
PostgreSQL leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
GleanPostgreSQL
Head to head in AI answers
0 engine answers name both brands
0Glean ranked higher
0PostgreSQL ranked higher
Features, pricing & fit
| Dimension | Glean | PostgreSQL |
|---|---|---|
| Deployment | Per-customer search model stored in the customer's VPC | — |
| Integrations | 250+ | — |
| Compliance | ISO 42001, HIPAA, TX-RAMP Level 2, SOC 2 Type II, ISO 27001, GDPR | — |
| Support | Help Center | Community mailing lists, Community events and local user groups |
| Founded | 2019 | — |
| Headquarters | San Francisco, CA | United States |
| Employees | 501–1,000 | 51–200 |
| Funding | Seed or early-stage round (emerged from stealth) · $765M raised | — |
| Best for | Large enterprises that want AI answers and agents grounded in their own permission-aware company data | — |
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
PostgreSQL
- Free open-source software
- Adds vector search to an existing PostgreSQL database without a new database
- Wide compatibility with drivers, BI tools, and language ecosystems
- Broad deployment and transparent self-hosted pricing
- Hosting, backups, and maintenance must be paid for when self-hosted
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Glean vs PostgreSQL”, https://slateindex.ai/compare/glean-vs-postgresql, data of Nov 3, 2026. Licence: CC BY 4.0.