penzai
Penzai uses JAX to turn neural networks into easy-to-read pytree structures, ideal for post-training model exploration such as reverse-engineering and activation analysis. It includes tools like Treescope for visualization, JAX utilities for data manipulation, and a flexible neural network library. With its Transformer model implementations, Penzai aids in research on model interpretability and dynamics, while version 0.2 enhances workflow with new API features like mutable state management.
