Weights & Biases
Weights & Biases provides experiment tracking, model management, and collaboration tools for machine learning projects. · Weights & Biases · AI
Overview
Weights & Biases is a popular MLOps platform for tracking experiments, managing models, and collaborating on machine learning projects with a generous free tier for individuals and open source.
Good fit
Use Weights & Biases to track, visualize, and share machine learning experiments, especially when collaborating or managing multiple runs.
- experiment tracking
- collaborative ML projects
- academic research
Not a fit
Avoid if you need unlimited private projects, require on-premise hosting, or have strict data privacy requirements.
- strict data privacy
- on-premise only
- unlimited private usage needed
Quickstart · 5 steps
- Sign up for a free Weights & Biases account.
- Install the wandb Python package in your environment.
- Initialize wandb in your ML script with wandb.init().
- Log metrics and artifacts during training.
- View results and collaborate on the wandb dashboard.
Other free ai options
Free tierWhat you get freeRiskCard
GitHub · AI
2,000 code completions per month · 50 chat requests per month (including Copilot Edits) · Agent mode, CLI, and MCP servers included with limited usage
Billing risk: None
No card
Google Cloud · AI
Sessions run up to 12 hours, depending on availability · GPU/TPU access heavily restricted on the free tier · Exact resource limits are not published and vary over time
Billing risk: None
No card
Google Cloud · AI
Free input and output tokens on supported models · Limited access to certain models · 5,000 free Google Search grounding requests/month, shared across Gemini 3.x models
Billing risk: None
No card
Hugging Face · AI
Unlimited public repos (best-effort free storage) · 100GB private storage · Storage limits apply across models, datasets, and buckets
Billing risk: None
No card