Weights & Biases
Weights & Biases, developer tools for machine learning
Our verdict
Weights & Biases, developer tools for machine learning. There is a free tier, and 2 paid plans are published openly. Developer documentation and a public changelog are both maintained, which is a good sign for anything you intend to build on. We have not verified the prices by hand, so we do not quote them here. Everything above was checked on 2026-08-28.
Pricing
Read automatically from wandb.ai. Prices change; the vendor’s page is authoritative.
| Tier | Monthly | Includes | Seats |
|---|---|---|---|
| Free | Free | ||
| Pro | $60 |
User reviews
No one has reviewed Weights & Biases here yet. Reviews are moderated before they appear, and our own score is editorial and separate from user ratings, though once reviews land they do lift it.
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Side by side
| Tool | Our score | From | Free tier | Best for | |
|---|---|---|---|---|---|
| Weights & Biases this page | 6.2 | $60 | Yes | ||
| Transformers | 7.9 | — | Yes | ||
| Ultralytics | 7.7 | — | Yes | ||
| vLLM | 7.5 | — | Yes | ||
| LlamaFactory | 7.3 | — | Yes | ||
| PyTorch | 6.6 | — | Yes | ||
| Artificial Analysis | 5.3 | — | — |
Questions
Is Weights & Biases free?
Yes. Weights & Biases advertises a free tier on its own site.
How much does Weights & Biases cost?
Weights & Biases publishes pricing on its own site, listing 2 plans. We deliberately do not republish prices we have not verified by hand, because automated price extraction proved unreliable enough to mislead. Use the link on this page for current figures.
Does Weights & Biases have an API or developer docs?
Yes, Weights & Biases publishes developer documentation.
How is Weights & Biases scored here?
Weights & Biases scores 6.2 out of 10. That comes from a desk review of public evidence, which is capped at 8.5 out of 10: public pricing, documentation, maintenance signals and how much we could actually verify. Affiliate relationships are excluded from scoring entirely. The full rubric is published on our methodology page.