PostgreSQL
A powerful, open source object-relational database system
Zilliz Cloud
From the creators of Milvus, the vector database trailblazer
Updated February 2026
| PostgreSQL | Zilliz Cloud | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 74 | 2 |
| Pros | 19 | 0 |
| FactScore™ | 93.8 | 23.9 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in PostgreSQL — Pros
Reliability Performance Scalability Advanced features Open source Advanced indexing Pgvector extension Extensibility Complex queries JSON support Robust transaction support SQL compliance Strong community support Structured data management Data integrity Easy to scale Free Geospatial analysis High loads handlingBoth tools — Pros
—Only in Zilliz Cloud — Pros
No unique pros listedOnly in PostgreSQL — Cons
—Both tools — Cons
—Only in Zilliz Cloud — Cons
—Details
| PostgreSQL | Zilliz Cloud | |
|---|---|---|
| Categories | Data visualization tools, Databases and backend frameworks | Databases and backend frameworks, AI Databases |
| Platforms | Web | Web |
| Became Popular | N/A | January 3, 2024 |
| Website | www.postgresql.org | zilliz.com |
Who Should Pick Which?
Choose PostgreSQL if...
- Reliability
- Performance
- Scalability
Choose Zilliz Cloud if...
- No unique pros listed
With a FactScore™ of 93.8 vs 23.9, PostgreSQL leads in community reception. PostgreSQL uniquely offers Reliability and Performance, while Zilliz Cloud stands out for No unique pros listed.
What Users Say
PostgreSQL
Postgres stands out thanks to its rock‑solid reliability and rich feature set—think advanced indexing, robust JSON support, and strong concurrency. It’s open source, highly scalable, and keeps our ...
I prefer PostgreSQL because it's just such an incredibly robust and versatile relational database that I trust. The huge advantage, especially for AI and search stuff lately, is the pgvector extens...
PGVector's native vector operations with PostgreSQL's ACID compliance works perfectly. We're storing millions of embeddings with sub-millisecond similarity search using cosine distance. The async c...
Zilliz Cloud
Zilliz Cloud because it has been the most cost effective option for our vector db operations.
Great RAG vector space where it balances the efficiency and cost.
Related Comparisons
Frequently Asked Questions
Which is better, PostgreSQL or Zilliz Cloud?
Based on FactScore™, PostgreSQL leads with a score of 93.8 vs 23.9. PostgreSQL has a higher rating of 5.0★ compared to 5.0★.
What are the pros of PostgreSQL compared to Zilliz Cloud?
PostgreSQL uniquely offers: Reliability, Performance, Scalability, Advanced features, Open source.
What are the pros of Zilliz Cloud compared to PostgreSQL?
Zilliz Cloud uniquely offers: No unique pros listed.
Is PostgreSQL better rated than Zilliz Cloud?
PostgreSQL is rated 5.0★ from 74 reviews. Zilliz Cloud is rated 5.0★ from 2 reviews.
What is the FactScore™ of PostgreSQL and Zilliz Cloud?
FactScore™ weighs rating and review volume together. PostgreSQL scores 93.8 and Zilliz Cloud scores 23.9.
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