kitio.aiKeras vs Metaflow
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Keras starts at Free and Metaflow 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
- Workflows in plain Python
- Automatic versioning
- One-command production deploy
- Cloud compute and GPUs
- Event-based triggers
| Feature | Keras | Metaflow |
|---|---|---|
| Best for | Open-source deep learning library that runs on JAX, PyTorch and TF | Open-source Python framework for ML and AI workflows |
| 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 | Outerbounds |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Keras starts at Free and Metaflow starts at Free. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 29, 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
Metaflow
- Free and open source
- Same code runs locally and in production
- Tracks every step automatically
- Requires Python skills
- Cloud setup takes effort
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 Metaflow if you want:
- Free and open source
- Same code runs locally and in production
- Tracks every step automatically
Watch out: requires python skills.
Keras vs Metaflow FAQ
What is the difference between Keras and Metaflow?
Keras: Open-source deep learning library that runs on JAX, PyTorch and TF. Metaflow: Open-source Python framework for ML and AI workflows. Both are models & apis tools.
Is Keras or Metaflow cheaper?
Keras starts at Free and Metaflow starts at Free. Check both pricing pages for current plans.
Do Keras and Metaflow have free plans?
Keras: Yes, fully free. Metaflow: Yes, fully free.
Who makes Keras?
Keras is made by Keras team at Google, based in United States.
Who makes Metaflow?
Metaflow is made by Outerbounds.
Which should I choose, Keras or Metaflow?
Choose Keras if you value free and open source and same code runs on three backends. Choose Metaflow if you value free and open source and same code runs locally and in production.