Optuna searches hyperparameter space intelligently, pruning bad trials early instead of grinding through a grid.
From the README
$ pip install optuna-dashboard
- Aug 3, 2026: Release candidate of Optuna v5 is available! Check out the release note for details.
- Jun 1, 2026: Optuna 4.9.0 is out! Check out the release note for details.
- Mar 16, 2026: Optuna 4.8.0 is out! Check out the release note for details.
- Jan 19, 2026: Optuna 4.7.0 is out! Check out the release note for details.
- Nov 10, 2025: A new article Announcing Optuna 4.6 has been published.
Excerpts from the project README on GitHub. Copyright and licensing remain with the respective authors.
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Free · no card · unsubscribe anytimeA hyperparameter optimization framework
optuna has 14.5k stars on GitHub. It has been forked 1.4k times. optuna is written mainly in Python. It has been in active development since 2018. optuna is available under the MIT license. Its main topics are distributed, hyperparameter-optimization, machine-learning, parallel.
Read the full guideWhat is optuna?
A hyperparameter optimization framework
Is optuna open source?
optuna is an open-source project. It is released under the MIT license.
Is optuna free?
Yes. optuna is free and open source — you can use, modify and self-host it.
What license does optuna use?
optuna is available under the MIT license.
What language is optuna written in?
optuna is written mainly in Python.
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