Weights & Biases
Features
Experiments
Track and visualize your ML experiments Learn moreSweeps
Optimize your hyperparameters Learn moreTables
Visualize and explore your ML data Learn moreReports
Visualize and explore your ML data Learn more
Training
Serverless RL
Fine-tune LLMs without managing GPUs Learn moreART
Open-source RL framework Learn moreRuler
Automated reward function for RL Learn more
Inference
OpenAI OSS
GPT OSS 20B, GPT OSS 120B Learn moreAlibaba Qwen3
23B A22B, 23B5B Thinking, Coder 480B Learn moreMeta Llama
Llama 4 Scout, 3.3 70B, 3.1 8B Learn moreMoonshotAI Kimi
Kimi K2 Learn moreMicrosoft Phi
Phi 4 Mini 3.8B Learn moreHangzhou DeepSeek
DeepSeek V3.1, V3-0324, R1-0528 Learn moreZ.ai
Z.AI GLM 4.5 Learn more
Weave
Traces
Explore and debug AI applications Learn moreEvaluations
Rigorous evaluations of AI applications Learn morePlayground
Explore prompts and models Learn moreAgents
Observability tools for agentic systems Learn moreGuardrails
Block prompt attacks and harmful outputs Learn moreMonitors
Continuously improve in production Learn more
Core
Registry
Publish and share your ML models and datasets Learn moreSkills
Skills for coding agents Learn moreSDK
Log ML experiments and artifacts at scale Learn moreAutomations
Trigger workflows automatically Learn more
Use Cases
- Train LLMs
- Fine-tune LLMs
- Computer Vision
- Time Series
- Recommender Systems
- Classification & Regression
Industries
- Autonomous Vehicles
- Communications
- Financial Services
- Healthcare & Life Sciences
- Public Sector
- Scientific Research
Case Studies
Canva
Learn how Canva leverages W&B to deploy models Learn moreMicrosoft
Learn how Microsoft uses W&B for their ML projects Learn moreToyota
Learn how Toyota uses W&B for autonomous driving Learn moreOpenAI
Learn how OpenAI Robotics uses W&B for large scale ML Learn more