Zilliz vs Milvus: Which is Better in 2026?
Choosing between Zilliz and Milvus 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.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Zilliz
Cloud vector database for similarity search
Best for you if:
- • You need data & databases features specifically
- • Zilliz is the company behind Milvus vector database with managed cloud
- • It provides enterprise vector search for AI applications
Milvus
Open-source vector database for AI
Best for you if:
- • You need something completely free
- • You need vector databases features specifically
- • Milvus is an open-source vector database for AI similarity search
- • It handles billion-scale vector search for recommendation and AI applications
| At a Glance |  Zilliz |  Milvus |
|---|---|---|
Starts at | Free tier + paid plansFree tier available | Pay-as-you-go/moZilliz Serverless |
Best For | Data & Databases | Vector Databases |
Rating | - | - |
Choose Zilliz or Milvus?
Choose Zilliz if
Cloud vector database for similarity search
- Managed Milvus
- Good for vectors
- Active development
- Your work is data & databases-shaped, not vector databases-shaped
Choose Milvus if
Open-source vector database for AI
- High performance
- Scalable
- Open source
- You want a fully free tool (Zilliz requires payment)
- Your work is vector databases-shaped, not data & databases-shaped
| Feature | Zilliz | Milvus |
|---|---|---|
| Pricing Model | Freemium | Free |
| User Rating | ★4.7/5 64 reviews | ★4.7/5 11 reviews |
| Categories | Data & DatabasesCloud & Infrastructure | Vector DatabasesData & Databases |
In-Depth Analysis
Zilliz
Cloud vector database for similarity search
Strengths
- +Managed Milvus
- +Good for vectors
- +Active development
- +Good performance
- +Enterprise ready
Weaknesses
- -Expensive
- -Learning curve
- -Vendor lock-in
- -Feature gaps
- -Per-CU pricing
Key features
Milvus
Open-source vector database for AI
Strengths
- +High performance
- +Scalable
- +Open source
- +Good for large scale
- +Active development
Weaknesses
- -Complex operations
- -Heavy resource usage
- -Learning curve
- -Kubernetes recommended
- -Documentation dense
Key features
Pricing: Zilliz vs Milvus
| Plan | Zilliz | Milvus |
|---|---|---|
| Tier 1 | N/A | Free Open Source |
| Tier 2 | N/A | Free Zilliz Cloud Free |
| Tier 3 | N/A | Pay-as-you-go Zilliz Serverless |
| Tier 4 | N/A | $99 Zilliz Dedicated |
Pricing verified from each vendor's public pricing page. Compare in detail on Zilliz pricing and Milvus pricing.
Who Should Use What?
On a budget?
Milvus is free. Zilliz is freemium.
Go with: Milvus
Want the highest-rated option?
Neither has user reviews yet.
Go with: Zilliz
Value user reviews?
Neither has user reviews yet.
Go with: Milvus
3 Questions to Help You Decide
What's your budget?
Zilliz is freemium. Milvus is free. Go with Milvus if free matters most.
What's your use case?
Zilliz is a data & databases tool. Milvus is in vector databases. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Milvus
- Completely free
- Our pick for this comparison
Zilliz
- Larger review base (64 reviews)
- Better fit for data & databases
The Bottom Line
Milvus is our pick.
Frequently Asked Questions
Is Zilliz or Milvus better?
Milvus is rated in our evaluation. Zilliz is freemium and Milvus is free.
What are Zilliz and Milvus used for?
Zilliz: Cloud vector database for similarity search. Milvus: Open-source vector database for AI.
What does Zilliz cost vs Milvus?
Zilliz is freemium (free tier + paid plans). Milvus is completely free. Visit their websites for detailed pricing.