The lab notebook for machine learning.
Weights & Biases tracks every training run — parameters\, metrics\, datasets\, model versions — so results are reproducible and comparable instead of scattered across notebooks and spreadsheets.
It has become close to standard in ML teams\, and its Weave product extends the same tracking to LLM applications where evaluating quality is otherwise guesswork. This is a tool for people training and shipping models\, not for business analytics.
Quick Information
Platform
Web
Pricing
Free + Paid
API
Available
Category
Analytics
Pros and Cons
Pros
- Close to the standard in ML teams
- Full experiment reproducibility
- Weave covers LLM observability
- Free tier for personal and academic use
- Integrates with every major ML framework
Cons
- Only relevant to ML teams
- Pricing scales with usage
- Learning curve for newcomers
- Not a business analytics tool