kitio.aiWeaviate vs Ragas
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Ragas is completely free, while Weaviate is freemium.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Hybrid vector and keyword search
- Built-in vectorizer modules
- Multi-tenancy
- Generative search
- Weaviate Cloud
- RAG quality metrics
- Agent evaluation
- Synthetic test generation
- Framework integrations
- CI-friendly runs
| Feature | Weaviate | Ragas |
|---|---|---|
| Best for | Open-source vector database with hybrid search and built-in vectorizers | Open-source metrics and test data for evaluating RAG and agents |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Free |
| Starting price | $45/mo | Free |
| Free plan | Yes | Yes, fully free |
| Made by | Weaviate | Vibrant Labs |
| Based in | Netherlands | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Ragas is completely free, while Weaviate is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- 1 cluster, 100K objects
- 1 GB memory, 10 GB disk
- Basic support
Flex
$45/mo
- Starting price, pay-as-you-go
- Shared cloud cluster
- RBAC, 99.5% uptime
Premium
Contact sales
- Prepaid contract
- Shared or dedicated deployment
- Up to 99.95% uptime
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Weaviate
- Strong hybrid search
- Open source and self-hostable
- Good multi-tenant support
- Memory-hungry at scale
- Cloud pricing changed often
- Schema concepts to learn
Ragas
- Free and widely used
- Research-backed metrics
- Generates test data
- LLM-judge metrics cost tokens
- API changes between versions
- No hosted dashboard included
Which one should you choose?
Choose Weaviate if you want:
- Strong hybrid search
- Open source and self-hostable
- Good multi-tenant support
Watch out: memory-hungry at scale.
Choose Ragas if you want:
- Free and widely used
- Research-backed metrics
- Generates test data
Watch out: llm-judge metrics cost tokens.
Weaviate vs Ragas FAQ
What is the difference between Weaviate and Ragas?
Weaviate: Open-source vector database with hybrid search and built-in vectorizers. Ragas: Open-source metrics and test data for evaluating RAG and agents. Both are models & apis tools.
Is Weaviate or Ragas cheaper?
Ragas is completely free, while Weaviate is freemium.
Do Weaviate and Ragas have free plans?
Weaviate: Yes. Ragas: Yes, fully free.
Who makes Weaviate?
Weaviate is made by Weaviate, based in Netherlands.
Who makes Ragas?
Ragas is made by Vibrant Labs.
Which should I choose, Weaviate or Ragas?
Choose Weaviate if you value strong hybrid search and open source and self-hostable. Choose Ragas if you value free and widely used and research-backed metrics.