Weave by W&B

Weave is an AI application development toolkit by Weights and Biases that provides tracing, evaluation, and versioning for LLM applications, enabling teams to track every prompt, model call, and output in their AI systems and systematically evaluate and improve application quality over time. It integrates seamlessly with the Weights and Biases MLOps platform, connecting LLM application development with the broader model development and experiment tracking workflows teams already use. ML and AI engineering teams using the Weights and Biases ecosystem use Weave to bring the same rigor and reproducibility they apply to model training to LLM application development.