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PostgreSQLThe world's most advanced open source database
vs
Stack AIAI Agents for the Enterprise
Comparison · AI Agents · weekly run Nov 3

PostgreSQL vs Stack AI

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 1.4 for Stack AI.

Choose PostgreSQL if…

  • You want the brand AI engines rank higher (2.3 vs 1.4)
  • AI answers describe it more positively (35% vs 0% positive)
  • Free open-source software
  • Adds vector search to an existing PostgreSQL database without a new database

Choose Stack AI if…

  • You need HIPAA or GDPR or SOC 2 Type II or ISO 27001 coverage
  • hosted no-code agent builders
  • free tiers for experimenting
  • solid G2 and Slashdot ratings

AI visibility side by side

Latest weekly run · Nov 3

Metric PostgreSQL Stack AI
Visibility score2.3%1.4%
Change vs last weekNewNew
Rank in AI Agents#38#51
Share of voice0.8%0.4%
Mentions this run53
Positive in AI answers35%0%

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

Visibility score trend

Weekly runs over the last 60 days

0%25%50%75%100%Nov 3PostgreSQL 2%

PostgreSQL 0pp · Stack AI 0pp over 0 weekly runs.

Engine by engine

PostgreSQL leads on 2 of 3 engines

ChatGPT
3.9%
0%
AI Mode
3%
0%
Perplexity
0%
4.3%
PostgreSQLStack AI

Head to head in AI answers

0 engine answers name both brands

0PostgreSQL ranked higher
0Stack AI ranked higher

Features, pricing & fit

DimensionPostgreSQLStack AI
Pricing model—Usage-based
Entry price—Contact sales
Free plan—Yes
Deployment—Multi-tenant cloud, VPC, or on-premise
Integrations—500+
Compliance—HIPAA, GDPR, SOC 2 Type II, ISO 27001
SupportCommunity mailing lists, Community events and local user groupsCommunity support on Discord, Email support, Priority support, Dedicated support
Founded—2023
HeadquartersUnited StatesSan Francisco, CA, United States
Employees51–20051–200
Funding—Series A · $19M raised
Best for—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

PostgreSQL

Pricing not available.

Stack AI

Free$0month
EnterpriseCustomcustom
Stack AI pricing

Pros and cons

Themes from the AI answers that mention each brand

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

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, “PostgreSQL vs Stack AI”, https://slateindex.ai/compare/postgresql-vs-stack-ai, data of Nov 3, 2026. Licence: CC BY 4.0.