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Enterprise-grade open-source vector database at massive scale
Overall score
82/100
Verdict
Good
Pricing
Free
Performance radar — Milvus
Score breakdown
Developer UX
SDK quality, indexing API, and setup speed.
Source: RadarTrek research
Query Performance
ANN search speed and recall accuracy at scale.
Source: RadarTrek research
Scalability
Index size limits and horizontal scaling for billions of vectors.
Source: RadarTrek research
Price / Value
Cost per million vectors and free tier generosity.
Source: RadarTrek research
Hybrid Search
Combining vector similarity with keyword/metadata filtering.
Source: RadarTrek research
Ecosystem
LangChain/LlamaIndex integrations and framework support.
Source: RadarTrek research
Milvus is an open-source vector database built for billion-scale vector search, used in production by large enterprises. More operational complexity than smaller alternatives, but unmatched at scale.
In our independent evaluation across 6 scored dimensions, Milvus earns an overall score of 82/100 — a strong result in the vector databases category. The platform is available including a permanently free tier, accessible to teams at any budget level. The score of 82 places it in the good tier of our vector databases rankings, where we assess tools on criteria that matter to builders: developer ux, query performance, scalability, and more.
Milvus scores highest on Scalability (98/100) and Query Performance (90/100), placing it among the stronger performers in those areas within the vector databases category. The dimensions with the most room for improvement are Developer UX (65/100) and Ecosystem (75/100) — teams who weight these criteria most heavily should compare Milvus carefully against alternatives before committing. The free entry point makes it easy to validate Milvus before committing to a paid plan — a practical advantage when evaluating a new tool category. Our recommendation: Milvus is worth a serious evaluation for teams that prioritise scalability — use the radar chart and dimension breakdown on this page to see at a glance whether its profile matches your priorities.
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Yes — Milvus is free to use with no trial period or credit card required. It offers a permanently free tier, though paid plans with higher limits or additional features are typically available. Check the official pricing page for current plan details.
Milvus scores highest on Scalability in our independent assessment — 98/100, placing it among the stronger performers in this dimension within the vector databases category. Index size limits and horizontal scaling for billions of vectors.. Teams who count scalability as a primary criterion should put Milvus high on their evaluation list.
The lowest-scoring dimension for Milvus in our testing is Developer UX (65/100). This does not make it the wrong choice — if developer ux is not a priority for your use case, the gap is irrelevant. But teams who weight developer ux most heavily should compare Milvus carefully against alternatives before committing, using the radar chart on this page to see the full profile at a glance.
Milvus earns an overall RadarTrek score of 82/100 — a strong result in the vector databases category. Scores above 75 indicate a tool that performs well across most dimensions without a critical weakness. At 82/100, Milvus is a reliable choice for most teams evaluating this space. Scores are reviewed when significant updates are released, so the number reflects the current version of the product.
The best alternative to Milvus depends on which dimension matters most to you. Use the "Compare with" links in the sidebar to see a head-to-head radar chart against any specific competitor in the vector databases category. The main vector databases category page ranks all tools by overall score and lets you filter by dimension to find alternatives that lead on your priority criterion.
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