Open-source vector database for AI
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11 reviews trackedThe Bottom Line
Entry price
Free, no paid tier
Biggest pro
High performance
Biggest con
Complex operations
TL;DR - Milvus
- Milvus is an open-source vector database for AI similarity search
- It handles billion-scale vector search for recommendation and AI applications
- Free and open-source, managed cloud available
Pricing: Free forever
Best for: Individuals & startups
4.7/5 across review platforms
What is Milvus?
Milvus stores and searches vectors at scale. Open-source vector database for AI applications-similarity search infrastructure.
The performance handles scale. The open-source model provides flexibility. The integration is straightforward.
AI applications needing vector search choose Milvus for scalable similarity search.
Pros & Cons
Pros
- High performance
- Scalable
- Open source
- Good for large scale
- Active development
Cons
- Complex operations
- Heavy resource usage
- Learning curve
- Kubernetes recommended
- Documentation dense
Ratings Across the Web
4.7(11 reviews)
Ratings aggregated from independent review platforms. Learn more
Key Features
Vector databaseSimilarity searchScalableHybrid searchGPU supportOpen source
Pricing Plans
30-day Free TrialPricing checked Jul 4, 2026
Open Source
Free
- Self-hosted
- Apache 2.0 license
- Full control
- Community support
Zilliz Cloud Free
Free
- 5GB storage
- 2.5M vCUs/month
- Managed service
- Prototyping
Zilliz Serverless
Pay-as-you-go
- $4 per million vCUs
- Auto-scaling
- Up to 20M vectors
- No minimum
Zilliz Dedicated
$99/month
- Enterprise-grade
- 99.95% SLA
- SOC 2 & ISO 27001
- Custom deployment
Reviews
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4.7/5
Across 11 verified user reviews on G2
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Milvus FAQ
How does Milvus support AI applications?
Milvus functions as an open-source vector database specifically designed for AI applications, enabling efficient storage and searching of vectors at scale. It provides the necessary similarity search infrastructure for various AI use cases.
Which teams would benefit most from using Milvus?
Teams developing AI applications that require scalable similarity search and need to manage large volumes of vector data will find Milvus particularly useful. Its high performance and scalability are well-suited for such demands.
How is Milvus priced?
Milvus is free to use, as it is an open-source vector database. There are no paid plans required to utilize its features and capabilities.
What kind of trade-offs should users consider when adopting Milvus?
Users should be aware that Milvus can involve complex operations and has a learning curve. It also requires heavy resource usage and recommends Kubernetes for optimal deployment, and its documentation can be dense.
Can Milvus handle large-scale vector search requirements?
Yes, Milvus is built to handle large-scale vector search requirements with high performance and scalability. It is specifically chosen by AI applications needing to manage and search vectors at scale.
How does Milvus compare to Pinecone for vector search?
Milvus is an open-source vector database offering flexibility and active development, suitable for large-scale similarity search, whereas Pinecone is another solution in the vector database space. Milvus's open-source nature provides a different deployment and usage model compared to proprietary alternatives.
Source: milvus.io