Weights & Biases Documentation

W&B Models

Develop AI models

Use W&B Models to manage AI model development. Features include training, fine-tuning, reporting, automating hyperparameter sweeps, and utilizing the model registry for versioning and reproducibility.

Introduction
Quickstart
YouTube Tutorial
Online Course

W&B Weave

Use AI models in your app

Use W&B Weave to manage AI models in your code. Features include tracing, output evaluation, cost estimates, and a hosted inference service and playground for comparing different large language models (LLMs) and settings.

Introduction
Quickstart
YouTube Demo
Try the Playground
Use Weave in your W&B runs

W&B Inference

Access foundation models

Use W&B Inference to access leading open-source foundation models through an OpenAI-compatible API. Features include multiple model options, usage tracking, and integration with Weave for tracing and evaluation.

Introduction
Available Models
API Reference
Try in Playground