kitio.aiMLServer vs Vald
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. MLServer starts at Free and Vald starts at Free. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- REST and gRPC endpoints
- V2 Inference Protocol
- Multi-model serving
- Adaptive batching
- Prebuilt framework runtimes
- Custom runtimes
- Distributed ANN search
- Asynchronous auto-indexing
- Index replication
- Automatic index backup
- Custom gRPC filters
- Multi-language SDKs
| Feature | MLServer | Vald |
|---|---|---|
| Best for | Open-source Python server for serving ML models over REST and gRPC | Open-source distributed vector search engine for billions of vectors |
| Category | Models & APIs | Models & APIs |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | Seldon | vdaas |
| Based in | United Kingdom | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
MLServer starts at Free and Vald starts at Free. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
MLServer
- Standard protocol shared with KServe
- Wide range of ML framework runtimes
- Installs with pip
- Python 3.13 is not yet supported
- Docs page shows few recent updates
- Needs Kubernetes tooling for scaled deployments
Vald
- Free and open source
- Scales to billions of vectors
- Keeps serving while indexing
- Needs Kubernetes to run
- No managed cloud offering
- More setup than hosted vector databases
Which one should you choose?
Choose MLServer if you want:
- Standard protocol shared with KServe
- Wide range of ML framework runtimes
- Installs with pip
Watch out: python 3.13 is not yet supported.
Choose Vald if you want:
- Free and open source
- Scales to billions of vectors
- Keeps serving while indexing
Watch out: needs kubernetes to run.
MLServer vs Vald FAQ
What is the difference between MLServer and Vald?
MLServer: Open-source Python server for serving ML models over REST and gRPC. Vald: Open-source distributed vector search engine for billions of vectors. Both are models & apis tools.
Is MLServer or Vald cheaper?
MLServer starts at Free and Vald starts at Free. Check both pricing pages for current plans.
Do MLServer and Vald have free plans?
MLServer: Yes, fully free. Vald: Yes, fully free.
Who makes MLServer?
MLServer is made by Seldon, based in United Kingdom.
Who makes Vald?
Vald is made by vdaas.
Which should I choose, MLServer or Vald?
Choose MLServer if you value standard protocol shared with kserve and wide range of ml framework runtimes. Choose Vald if you value free and open source and scales to billions of vectors.