Aerospike vs Zilliz: Which is Better in 2026?
Choosing between Aerospike and Zilliz comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Zilliz wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. Pick Aerospike if you need a free tier to start with.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Aerospike
Real-time NoSQL database for high performance
Best for you if:
- • You want extreme performance
Zilliz
Cloud vector database for similarity search
Best for you if:
- • You want managed Milvus
| At a Glance | Aerospike | Zilliz |
|---|---|---|
Starts at | Free Free plan | Free Free plan |
Category | Data & Databases Managed Databases | Data & Databases Cloud & Infrastructure |
Rating | 4.5/5 G2 4.4 · Capterra 4.7 86 reviews | 4.7/5 G2 4.7 53 reviews |
Free plan | Yes | Yes |
Watch out for | n/a | Overage fees for exceeding storage limits |
Choose Aerospike or Zilliz?
Choose Aerospike if
- You want extreme performance
- You want cost-effective at scale
Choose Zilliz if
- You want managed Milvus
- You want good for vectors
In-Depth Analysis
Aerospike
Real-time NoSQL database for high performance
Aerospike's pricing model is fair and generous, offering a robust free Community tier for open-source users.
Strengths
- Pro: Extreme performance
- Pro: Cost-effective at scale
- Pro: Hybrid memory architecture
- Pro: High availability
Weaknesses
- Con: Smaller community
- Con: Complex operations
- Con: Limited query language
Key features
Zilliz
Cloud vector database for similarity search
Zilliz's pricing is fair, offering a generous free tier for initial exploration.
Watch out
Overage fees for exceeding storage limits
Strengths
- Pro: Managed Milvus
- Pro: Good for vectors
- Pro: Active development
- Pro: Good performance
- Pro: Enterprise ready
Weaknesses
- Con: Expensive
- Con: Learning curve
- Con: Vendor lock-in
- Con: Feature gaps
- Con: Per-CU pricing
Key features
Pricing: Aerospike vs Zilliz
| Plan | Aerospike | Zilliz |
|---|---|---|
| Tier 1 | Free Community | N/A |
| Tier 2 | Custom Enterprise | N/A |
| Tier 3 | Pay as you go Cloud | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Aerospike pricing and Zilliz pricing.
Key Takeaways
Zilliz
- Higher user rating: 4.7/5 vs 4.5/5
- Free tier available
- Our pick for this comparison
Aerospike
- Larger review base (86 reviews)
The Bottom Line
Zilliz wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick.
Frequently Asked Questions
Is Aerospike or Zilliz better in 2026?
Zilliz wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. Pick Aerospike for data & databases workflows (main strength: extreme performance). Pick Zilliz for data & databases workflows (main strength: managed Milvus).
What are Aerospike and Zilliz used for?
Aerospike: Real-time NoSQL database for high performance. Zilliz: Cloud vector database for similarity search.
What does Aerospike cost vs Zilliz?
Aerospike pricing is on their site. Zilliz pricing is on their site.
What's the main difference between Aerospike and Zilliz?
Aerospike's main strength: extreme performance. Zilliz's main strength: managed Milvus.