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Weights & Biases

FREEMIUM

ML experiment tracking and model visualization platform

Organize and compare experiments with rich visualizations

VG SCORE
9.5
HYBRID

Product Details

CompanyWeights & Biases
HeadquartersSan Francisco, United States
Founded2017
PricingFreemium
Free TrialAvailable
DeploymentHybrid
Learning CurveModerate
Integrations7 available

■ INTELLIGENCE BRIEFING — Weekly tool drops. No spam.

PROS & CONS

STRENGTHS

  • Beautiful visualizations make experiment comparison intuitive and fast
  • Powerful hyperparameter sweeps with multiple search strategies
  • Active integration with major ML frameworks and cloud platforms

WEAKNESSES

  • Free tier limits private projects and collaboration features
  • Artifact storage costs can add up for large model and dataset files

KEY FEATURES

Experiments

Track metrics, hyperparameters, and code across training runs

Sweeps

Hyperparameter optimization with grid, random, and Bayesian search

Artifacts

Version datasets, models, and outputs with lineage tracking

Reports

Create shareable documentation with embedded visualizations

WHO IS Weights & Biases BEST FOR?

ML researchers running many experiments

Organize and compare experiments with rich visualizations

Teams collaborating on model development

Share results and insights through reports and dashboards

INTEGRATIONS

PyTorchTensorFlowHugging FaceLightningKerasscikit-learnLangChain

TECHNICAL DETAILS

LEARNING CURVE
MODERATE — FEW HOURS
FREE TRIAL

AVAILABLE

FIELD REPORTS (0)

No field reports yet. Be the first to review Weights & Biases.

DOSSIER

COMPANY
Weights & Biases
HQ
San Francisco, United States
FOUNDED
2017
LAST VERIFIED MAR 27, 2026

PRICING MODEL

BEST FOR

ML researchers running many experimentsTeams collaborating on model development

FEATURES

FINAL ASSESSMENT

APPROVED — WORTH YOUR MONEY