google-deepmind/optax

Optax is a gradient processing and optimization library for JAX.

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This library helps machine learning researchers efficiently train their neural networks. It takes a JAX-based model's parameters and gradients, applies various optimization techniques, and outputs updated parameters to improve model performance. It's used by machine learning practitioners and researchers who build and experiment with custom deep learning models.

2,207 stars. Used by 41 other packages. Actively maintained with 11 commits in the last 30 days. Available on PyPI.

Use this if you are a machine learning researcher building neural networks in JAX and need a flexible toolkit to customize your gradient processing and optimization algorithms.

Not ideal if you are looking for a high-level, opinionated deep learning framework that handles model architecture and training loops for you.

machine-learning-research deep-learning-optimization neural-network-training gradient-descent model-experimentation
Maintenance 17 / 25
Adoption 15 / 25
Maturity 25 / 25
Community 22 / 25

How are scores calculated?

Stars

2,207

Forks

318

Language

Python

License

Apache-2.0

Last pushed

Mar 12, 2026

Commits (30d)

11

Dependencies

4

Reverse dependents

41

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