BayesFlow: A Complete Guide to Amortized Bayesian Inference with Neural Networks What is BayesFlow? BayesFlow is an open-source Python library designed for simulation-based amortized Bayesian inference using neural networks. It streamlines three core statistical workflows: Parameter Estimation: Infer hidden parameters without analytical likelihoods Model Comparison: Automate evidence computation for competing models Model Validation: Diagnose simulator mismatches systematically Key Technical Features Multi-Backend Support: Seamless integration with PyTorch, TensorFlow, or JAX via Keras 3 Modular Workflows: Pre-built components for rapid experimentation Active Development: Continuously updated with generative AI advancements Version Note: The stable v2.0+ release features significant API changes from v1.x. …