PostgreSQL vs Supabase

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 Vector Databases: it has a visibility score of 49 versus 5.7 for Supabase, and ranks ahead in 55% of the answers that name both.

Choose PostgreSQL if…

You want the brand AI engines rank higher (49 vs 5.7)
AI answers describe it more positively (35% vs 18% positive)
Free open-source software
Adds vector search to an existing PostgreSQL database without a new database

Choose Supabase if…

You need a self-hosted or on-premises option
You need SOC 2 Type 2 or ISO 27001 or HIPAA (BAA available) coverage
You prefer a larger, established vendor (201–500 employees)
Integrates smoothly with Firebase and Supabase

AI visibility side by side

Latest weekly run · Nov 2

Metric	PostgreSQL	Supabase
Visibility score	49%	5.7%
Change vs last week	New	New
Rank in Vector Databases	#3	#12
Share of voice	12.6%	2.2%
Mentions this run	59	11
Positive in AI answers	35%	18%

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

Visibility score trend

Weekly runs over the last 60 days

PostgreSQL 0pp · Supabase 0pp over 0 weekly runs.

Engine by engine

PostgreSQL leads on 3 of 3 engines

ChatGPT

44.3%

10.4%

AI Mode

42.8%

5.9%

Perplexity

59.8%

0.9%

PostgreSQLSupabase

Head to head in AI answers

11 engine answers name both brands

6PostgreSQL ranked higher

5Supabase ranked higher

Prompt	Engine	PostgreSQL	Supabase
Best vector database for startups	AI Mode	#3	#4
Top vector database options for B2B SaaS companies	AI Mode	#4	#7
Compare the leading Vector Databases platforms	ChatGPT	#5	#9
Most affordable vector database that is still reliable	ChatGPT	#2	#6
How much does a vector database cost per month?	ChatGPT	#6	#5
How much does a vector database cost per month?	AI Mode	#4	#5
Is there a free vector database for small teams?	ChatGPT	#3	#2
What is the typical pricing model for Vector Databases software?	ChatGPT	#6	#5
Official website of the top vector database vendors	Perplexity	#12	#11
Where can I sign up for a vector database?	ChatGPT	#6	#5
Where can I sign up for a vector database?	AI Mode	#6	#7

Features, pricing & fit

Dimension	PostgreSQL	Supabase
Pricing model	—	Flat tiers
Entry price	—	Free; paid from $25 / mo
Free plan	—	Yes
Deployment	—	Hosted cloud in AWS regions across the US, EU and Asia Pacific, or self-hosted open source
Compliance	—	SOC 2 Type 2, ISO 27001, HIPAA (BAA available)
Support	Community mailing lists, Community events and local user groups	Community support (Free plan), Email support (Pro plan), Priority email support and SLAs (Team plan), 24x7 premium enterprise support and private Slack channel (Enterprise plan)
Founded	—	2020
Headquarters	United States	Remote-first, United States
Employees	51–200	201–500
Funding	—	Series D · $1000M raised
Best for	—	Teams building production applications on Postgres that want auth, storage, realtime and vector search in one backend