Weights & Biasesvs
Comet ML
Comet ML: Experiment tracking and model monitoring platform for machine learning teams with similar MLOps capabilities.
Weights & Biases
Developer tools for machine learning
As of 30 August 2026, Weights & Biases has a free plan and paid plans start at $60/month. Weights & Biases (W&B) is an ML platform for experiment tracking, dataset versioning, and model management. Softwr lists it under Machine Learning. Weights & Biases is launched in 2017, available on Web, API.
Overview
What Weights & Biases does
Weights & Biases (W&B) is an ML platform for experiment tracking, dataset versioning, and model management. It helps teams track experiments, visualize model performance, and collaborate on ML projects with powerful logging and dashboard capabilities.
What people use it for
- Machine learning
- Data analysis
- Model training
- Predictive analytics
Related searches
The honest half
Where it falls short
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Weights & Biases.
- Pricing can be prohibitive for large teams without enterprise discounts
- Limited integrations compared to some competitors
- Dashboard customization options limited on lower plans
- Requires some setup and configuration knowledge
Cross-shopped
What people choose instead of Weights & Biases
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.
- Weights & BiasesvsMLflow
MLflow: Open-source ML lifecycle management platform offering experiment tracking and model registry.
- Weights & BiasesvsNeptune.ai
Neptune.ai: Metadata store for ML experiments with experiment tracking, model comparison, and monitoring features.
Pricing
What Weights & Biases costs
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Free
Free
- 5 model seats
- 5 GB storage
- 1 GB/month Weave ingestion
- Experiment tracking
- Public projects
Pro
$60 /mo
- 10 seats
- 100 GB storage
- Private projects
- Advanced features
- Priority support
Teams
$179 /mo
- Team collaboration
- Advanced analytics
- Dedicated support
- Custom integrations
Capabilities
Features
Experiment tracking
Dataset versioning
Model registry
Hyperparameter sweeps
Collaborative dashboards
PyTorch
Integration with PyTorch
TensorFlow
Integration with TensorFlow
Keras
Integration with Keras
Hugging Face
Integration with Hugging Face
Lightning
Integration with Lightning
Web support
Available on web
Linux support
Available on linux
Answered, with sources
Questions people ask
Each answer names the page it came from, so you can check it rather than take our word for it.
Does Weights & Biases have a free plan?
Yes. The Free tier includes 5 model seats, 5 GB storage, and 1 GB/month Weave ingestion. Academic users get unlimited tracked hours, 200 GB storage, and 100 seats at no cost.
SourceWhat are the paid plans for Weights & Biases?
Pro starts at $60/month with 10 seats and 100 GB storage. Team plans start at $179/month. Enterprise pricing is custom.
SourceWhat machine learning features does W&B provide?
Weights & Biases captures hyperparameters, metrics, and model outputs automatically. Features include experiment tracking, interactive Reports for sharing findings, Artifacts for managing datasets and models, advanced hyperparameter sweeps, and model deployment tools.
SourceBehind it
Who makes Weights & Biases
- Company
- Weights & Biases
- Based in
- San Francisco, California
- Founders
- Lukas Biewald, Chris Van Pelt, Shawn Lewis
Timeline
Weights & Biases over time
Keep looking
Where to go from Weights & Biases
- Weights & Biases alternativesEvery product people weigh against it
- Weights & Biases pricingPlans, floors and what the tiers exclude
- Weights & Biases badgesWhich rules it meets, and the figure behind each
- All Machine Learning softwareThe full category
- Best Machine Learning softwareThe shortlist, and how it was cut
Best Machine Learning software for
Compare Weights & Biases with
- Neptune.ai
- Comet ML
- MLflow
- ClearML
- Dataiku
- Domino Data Lab
- Azure Machine Learning
- DVC
- MATLAB
- JMP
- Pachyderm
- Seldon
- Stata
- TensorBoard
- KNIME
- Dataiku
- SAS
- Seldon
Other Machine Learning software
Platform for tracking, comparing, and optimizing ML experiments
Free, then $19/mo13 researched notesOpen-source MLOps platform for experiment tracking and orchestration
Free plan8 researched notesBrowser-based platform where visual data preparation and written code share one pipeline
Free plan14 researched notesMicrosoft's managed platform for training, tracking and deploying models on Azure
Free plan13 researched notesGit-style versioning for data sets and models, with the files kept in object storage
Free plan14 researched notesDesktop statistical and design of experiments software from a SAS subsidiary
Free plan14 researched notesData versioning and container pipelines that run on your Kubernetes cluster
Free plan14 researched notesKubernetes model serving whose current version is licensed under the Business Source Licence
Free plan14 researched notesLocal visualisation for training runs, reading event files written to a directory
Free plan14 researched notesBrowser-based platform where visual data preparation and written code share one pipeline
Free plan14 researched notesKubernetes model serving whose current version is licensed under the Business Source Licence
Free plan14 researched notes
Softwr does not host reviews and shows no star rating for Weights & Biases, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
More on Weights & Biases
Weights & Biases alternatives
What people switch to, and what they give up
Weights & Biases pricing
Every tier, and where the cost actually lands
Compare Weights & Biases
Put it head to head with anything we hold
Weights & Biases badge
Its rating, and an embed for your own site
Best Machine Learning software alternatives
Open-source MLOps platform for experiment tracking and orchestration
Open-source self-hosted, with paid hosted and enterprise tiers
LLM engineering platform for testing and evaluating AI agents in production
Tiered subscription with usage-based overage charges
Open-source AI orchestration framework for LLM applications
Open-source with optional paid enterprise support
The world's most popular data science platform
