# Weights & Biases

- Website: https://wandb.ai
- Agent profile: https://directory.haycion.ai/agents/wandb-ai

> Weights & Biases provides an end-to-end AI development platform that helps teams build, train, evaluate, and deploy AI models and agents.

Weights & Biases is an AI developer platform that enables teams to build, train, track, evaluate, and deploy AI models and agent-based applications with confidence. The platform provides end-to-end tooling for experimentation, governance, and observability, helping data science and engineering teams collaborate across projects and scale AI initiatives safely.

**Mission:** The AI developer platform to build AI agents, applications, and models with confidence

## Products & Services

### [Weave](https://wandb.ai/site/weave/)
*Platform*
Enhance AI application performance with comprehensive monitoring and evaluation tools.

- **Guardrails** — Ensure Safe Outputs
- **Evaluations** — Measure AI Performance
- **Traces** — Visualize AI Call Log
- **Agents** — Track Agentic System Behavior
- **Monitors** — Continuously Improve in Production
- **Playground** — Experiment with LLMs

### [W&B Models](https://wandb.ai/site/models/)
*Platform*
Accelerates model development and governance through centralized tracking and automation.

- **Experiment Tracking** — Gain Insights Quickly
- **Automations for ML Workflows** — Streamline ML Operations
- **Governance and Lineage** — Ensure Compliance
- **Artifact & Dataset Versioning** — Manage Versions Effectively
- **SDK for Logging** — Log Efficiently

### [Agent Reinforcement Trainer (ART)](https://wandb.ai/site/art/)
*Platform*
Accelerate RL fine-tuning for AI agents with ART's powerful framework.

- **GRPO Harness** — Utilizes GRPO
- **Faster RL Iteration** — Accelerates RL Processes
- **Serverless RL Backend** — Eliminates Hardware Management
- **Open-Source RL Framework** — Modular RL System
- **Multi-turn Rollouts** — Enhances Agent Training
- **Developer-Friendly API** — Simplifies Model Training

### [RULER](https://wandb.ai/site/ruler/)
*Product*
Accelerate your reinforcement learning with automated, expert-free reward functions.

- **Integration with ART** — Streamline RL Training
- **LLM as Judge** — Automate Reward Judging
- **No Labels or Experts Required** — Reduce Resource Needs
- **Minimal Setup** — Implement Quickly
- **General-Purpose Functionality** — Apply Universally
- **2-3x Faster Development** — Accelerate Development Cycle

### [RAG](https://wandb.ai/site/solutions/rag/)
*Solution*
Provides accurate, context-rich responses while minimizing costs and errors.

- **Improved Factual Accuracy** — Enhances Accuracy
- **Fresh Context Data** — Ensures Relevance
- **Knowledge Retrieval Integration** — Augments Responses
- **Cost Efficiency** — Reduces Costs

### [Registry](https://wandb.ai/site/registry/)
*Platform*
Streamline the management and sharing of AI models and datasets with integrated lineage tracking.

- **Model and Dataset Lineage** — Enhance Governance
- **Publish and Share Models and Datasets** — Facilitate Collaboration
- **Metadata Management** — Streamline Data Organization
- **Version Control** — Ensure Consistency
- **Registry Workflow Integration** — Streamline Workflow