Track, compare, and share ML experiments and models
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44 reviews trackedThe Bottom Line
Entry price
Free plan available, paid tiers above
Biggest pro
Great visualizations
Biggest con
Learning curve
TL;DR - Weights & Biases
- MLOps platform for experiment tracking
- Visualize and compare ML training runs
- Collaborate on AI projects with your team
Pricing: Free plan available
Best for: Growing teams
4.7/5 across review platforms
What is Weights & Biases?
Weights & Biases (W&B) is the ML platform for experiment tracking, model management, and collaboration. Track every aspect of your machine learning experiments - hyperparameters, metrics, code, and artifacts. Compare runs with interactive visualizations and share results with your team. W&B integrates with PyTorch, TensorFlow, and all major ML frameworks. Features include model registry, dataset versioning, and production monitoring.
Available on: Web, iOS
Pros & Cons
Pros
- Great visualizations
- Team collaboration
- Free tier
Cons
- Learning curve
- Can be slow
Ratings Across the Web
4.7(44 reviews)
Ratings aggregated from independent review platforms. Learn more
Key Features
Experiment trackingModel versioningHyperparameter tuningCollaborative dashboardsArtifact managementGPU monitoring
Pricing Plans
Pricing checked May 28, 2026
Free
Free
- 5 model seats
- 5GB storage
- 1GB Weave data/month
- Personal projects only
Pro
$60/month
- More storage
- Team features
- Commercial use
- Priority support
Academic
Free
- All Pro features
- Unlimited tracked hours
- 200GB storage
- Up to 100 seats
Enterprise
Custom
- Self-hosted option
- Advanced security
- Dedicated support
- Custom integrations
How Weights & Biases's pricing compares
At $60/mo, Weights & Biases is the most premium of its 2 direct competitors.
Entry paid plan, monthly. Pricing checked May 28, 2026.
Reviews
4.7/5
Across 44 verified user reviews on G2
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Weights & Biases FAQ
What is Weights & Biases?
Weights & Biases (W&B) is an MLOps platform for tracking machine learning experiments, visualizing results, and collaborating on AI projects.
Is Weights & Biases free?
Yes, W&B offers a free tier for individual use. Team and enterprise plans are available for organizations.
What ML frameworks does W&B support?
W&B integrates with PyTorch, TensorFlow, Keras, JAX, Scikit-learn, and most popular ML/DL frameworks.
Source: wandb.ai