kitio.aiWeights & Biases vs Polyaxon
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Weights & Biases has the lower starting price: about $60 a month, against $555 for Polyaxon.
Open-source control plane for ML training, serving and agents on Kubernetes
Freemium · $555/moAt a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Experiment tracking
- Hyperparameter sweeps
- Model registry
- Weave LLM tracing
- Reports
- Training and fine-tuning jobs
- Hyperparameter sweeps and DAGs
- Model serving and notebooks
- Experiment tracking and registry
- Agent sandboxes
- Access policies and audit logs
| Feature | Weights & Biases | Polyaxon |
|---|---|---|
| Best for | Experiment tracking and LLM observability, now part of CoreWeave | Open-source control plane for ML training, serving and agents on Kubernetes |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | $60/mo | $555/mo |
| Free plan | Yes | Yes |
| Made by | CoreWeave | Polyaxon |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Weights & Biases has the lower starting price: about $60 a month, against $555 for Polyaxon.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Experiment tracking for individuals
- Limited storage
Pro
$60/mo
- Starting price
- Team collaboration features
- Higher usage limits
Enterprise
Contact sales
- SSO and advanced security
- Dedicated support
4 plans
Open Source
Free
- Self-hosted
- Core tracking and scheduling
Platform
$555/mo
- 3 developer seats
- 1 compute cluster
- 50 concurrent runs
- Collaboration features
Teams
$1500/mo
- 6 developer seats
- 2 compute clusters
- Teams management
- Priority support
Enterprise
Custom
- Custom seats
- Custom policies and deployment
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
Weights & Biases
- Industry-standard experiment tracking
- Polished dashboards
- Covers training and LLM apps
- Pricing jumps for larger teams
- Weave ingestion billed by size
- Sign-in moved to CoreWeave
Polyaxon
- Self-hosted, data stays on your infra
- Covers training, serving and tracking
- Free for academics
- Paid plans start at a high price
- Requires Kubernetes expertise
- Extra seats and clusters cost more
Which one should you choose?
Choose Weights & Biases if you want:
- Industry-standard experiment tracking
- Polished dashboards
- Covers training and LLM apps
Watch out: pricing jumps for larger teams.
Choose Polyaxon if you want:
- Self-hosted, data stays on your infra
- Covers training, serving and tracking
- Free for academics
Watch out: paid plans start at a high price.
Weights & Biases vs Polyaxon FAQ
What is the difference between Weights & Biases and Polyaxon?
Weights & Biases: Experiment tracking and LLM observability, now part of CoreWeave. Polyaxon: Open-source control plane for ML training, serving and agents on Kubernetes. Both are models & apis tools.
Is Weights & Biases or Polyaxon cheaper?
Weights & Biases has the lower starting price: about $60 a month, against $555 for Polyaxon.
Do Weights & Biases and Polyaxon have free plans?
Weights & Biases: Yes. Polyaxon: Yes.
Who makes Weights & Biases?
Weights & Biases is made by CoreWeave, based in United States.
Who makes Polyaxon?
Polyaxon is made by Polyaxon.
Which should I choose, Weights & Biases or Polyaxon?
Choose Weights & Biases if you value industry-standard experiment tracking and polished dashboards. Choose Polyaxon if you value self-hosted, data stays on your infra and covers training, serving and tracking.