kitio.aiKeras vs Ragas
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Keras starts at Free and Ragas 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
- Multi-backend support
- Functional and sequential APIs
- KerasHub pretrained models
- KerasTuner hyperparameter search
- Keras RS recommenders
- RAG quality metrics
- Agent evaluation
- Synthetic test generation
- Framework integrations
- CI-friendly runs
| Feature | Keras | Ragas |
|---|---|---|
| Best for | Open-source deep learning library that runs on JAX, PyTorch and TF | Open-source metrics and test data for evaluating RAG and agents |
| Category | Models & APIs | Models & APIs |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | Keras team at Google | Vibrant Labs |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Keras starts at Free and Ragas starts at Free. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
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
Keras
- Free and open source
- Same code runs on three backends
- Pretrained models in KerasHub
- Thorough docs and examples
- Requires Python and ML knowledge
- Very custom research may need raw framework code
- No hosted training service
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 Keras if you want:
- Free and open source
- Same code runs on three backends
- Pretrained models in KerasHub
Watch out: requires python and ml knowledge.
Choose Ragas if you want:
- Free and widely used
- Research-backed metrics
- Generates test data
Watch out: llm-judge metrics cost tokens.
Keras vs Ragas FAQ
What is the difference between Keras and Ragas?
Keras: Open-source deep learning library that runs on JAX, PyTorch and TF. Ragas: Open-source metrics and test data for evaluating RAG and agents. Both are models & apis tools.
Is Keras or Ragas cheaper?
Keras starts at Free and Ragas starts at Free. Check both pricing pages for current plans.
Do Keras and Ragas have free plans?
Keras: Yes, fully free. Ragas: Yes, fully free.
Who makes Keras?
Keras is made by Keras team at Google, based in United States.
Who makes Ragas?
Ragas is made by Vibrant Labs.
Which should I choose, Keras or Ragas?
Choose Keras if you value free and open source and same code runs on three backends. Choose Ragas if you value free and widely used and research-backed metrics.