Milvus vs LanceDB: Which Should You Choose in 2026?
Choosing between Milvus and LanceDB 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:
Milvus
Open-source vector database for AI
Best for you if:
- • You want the higher-rated option (8.6/10 vs 8.2/10)
- • Milvus is an open-source vector database for AI similarity search
- • It handles billion-scale vector search for recommendation and AI applications
LanceDB
Serverless vector database for AI applications
Best for you if:
- • LanceDB is an open-source vector database for AI and ML applications
- • It stores and queries embeddings with serverless deployment options
| At a Glance |  LanceDB | |
|---|---|---|
Price | Free | Free |
Best For | Vector Databases | Vector Databases |
Rating | 86/100 | 82/100 |
| Feature | Milvus | LanceDB |
|---|---|---|
| Pricing Model | Free | Free |
| Editorial Score | 86 | 82 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Vector DatabasesAI Model Deployment | Vector DatabasesServerless Databases |
Understanding the Differences
Both Milvus and LanceDB solve similar problems, but they approach them differently.Milvus positions itself as "open-source vector database for ai" while LanceDBfocuses on "serverless vector database for ai applications". These differences matter depending on what you're trying to accomplish.
When to Choose Milvus
Milvus makes sense if you're looking for a completely free solution. With a score of 86/100, it's our top pick in this comparison.
When to Choose LanceDB
LanceDB is worth considering if you need a free tool.
Who Should Use What?
Bootstrapped or small team?
When every dollar counts, Milvus lets you get started without pulling out your credit card.
We'd pick: Milvus
Growing fast?
Your team doubled last quarter and you need tools that won't break when you add 50 more people. Milvus handles scale better in our testing.
We'd pick: Milvus
Enterprise with complex needs?
You need SSO, compliance certifications, and a support team that picks up the phone. Both have enterprise tiers—compare their security features.
We'd pick: Milvus
Still not sure? Answer these 3 questions
How much can you spend?
Nothing at all? Milvus is completely free.
Do you care what other users think?
Both have similar review counts. Read a few before you commit.
Expert opinion or crowd wisdom?
Our team rated Milvus higher (86/100). But the community has upvoted LanceDB more (0 votes). Pick your source of truth.
Key Takeaways
What Milvus Does Better
- Higher overall score (86/100)
- Our recommendation for most use cases
Consider LanceDB If
- You need a completely free solution
- Its specific features better match your workflow
- You prefer its interface or design approach
The Bottom Line
If we had to pick one, we'd go with Milvus (86/100). But the honest answer is that "better" depends on your situation. Milvus scores higher in our analysis, but LanceDB might be the right choice if its specific strengths align with what you need most. Take advantage of free trials to test both before committing.
Frequently Asked Questions
Is Milvus or LanceDB better?
Based on our analysis, Milvus scores higher with 86/100. Milvus isfree while LanceDB is free. The best choice depends on your specific needs and budget. We recommend testing both with free trials if available.
Can I switch from Milvus to LanceDB easily?
Migration difficulty varies. Check if both tools support data export/import in compatible formats. Some tools offer migration assistance or have integration partners who can help with the transition.
Do Milvus and LanceDB offer free trials?
Most software in this category offers free trials or free tiers. Milvus is completely free.LanceDB is completely free. Visit their websites for current trial offers.