Optuna: A hyperparameter optimization framework by optuna
A hyperparameter optimization framework
About Optuna: A hyperparameter optimization framework
From the project's README at github.com/optuna/optuna. Lightly cleaned for readability; for the full source see the upstream repo.
[](https://www.python.org) [](https://pypi.python.org/pypi/optuna) [](https://anaconda.org/conda-forge/optuna) [](https://github.com/optuna/optuna) [](https://optuna.readthedocs.io/en/stable/)
Optuna is an automatic hyperparameter optimization software framework, particularly designed for machine learning. It features an imperative, define-by-run style user API. Thanks to our define-by-run API, the code written with
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 14k | github.com/optuna/optuna |
| GitHub forks | 1.3k | github.com/optuna/optuna |
| Docker Hub pulls | 110k | hub.docker.com / optuna |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 8.2 years | since Feb 2018 |
| Last commit | 6 days ago | May 1, 2026 |
| Releases shipped | 78 | last: 2 months ago |
| Security policy | SECURITY.md | declared by maintainers |
| Funding links | 1 | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
What people say on Hacker News
Ready to self-host Optuna: A hyperparameter optimization framework?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
Similar open-source projects
Projects in our directory that replace the same SaaS or share topics with Optuna: A hyperparameter optimization framework.