Efficient Optimization With Ax, an Open Platform for Adaptive Experimentation
Nov 18, 2025Miles Olson, Max Balandat, Eytan Bakshy

Summary
This post introduces Ax 1.0, an open-source platform for adaptive experimentation that uses machine learning, specifically Bayesian optimization, to automate and optimize complex, resource-intensive experimentation processes. It highlights Ax's application in various Meta domains, including hyperparameter optimization for AI models, GenAI data mixture discovery, infrastructure tuning, and AR/VR hardware design. The post emphasizes Ax's role in not only finding optimal configurations but also in providing insights into the underlying systems being optimized.
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