Dragonfly
by Community
An open source python library for scalable Bayesian optimisation.
OSS
Dragonfly
Added 1 June 2026
Overview
Dragonfly is an open source Python library for scalable Bayesian optimisation. It uses probabilistic models to optimize expensive black-box functions efficiently. The library supports multiple acquisition functions and parallel evaluations.
Best for
Best for
Developers needing scalable Bayesian optimisation for expensive black-box function evaluations, especially in observability and ML tuning
Use cases
- Hyperparameter tuning for machine learning models
- Optimizing simulation parameters in scientific computing
- Tuning observability system configurations
Notes
Dragonfly is an open source Python library for scalable Bayesian optimisation. It uses probabilistic models to optimize expensive black-box functions efficiently. The library supports multiple acquisition functions and parallel evaluations.
893 stars on GitHub. Last updated 2023-06-19. Licensed MIT.
Use cases
- Hyperparameter tuning for machine learning models
- Optimizing simulation parameters in scientific computing
- Tuning observability system configurations
Pros
- Scalable Bayesian optimisation with support for parallel evaluations
- Open source with active community contributions
- Integrates well with existing Python workflows
Cons
- Limited to Bayesian optimisation methods, not a general optimization library
- Requires careful selection of acquisition functions for best results
- Smaller community compared to alternatives like Optuna or Hyperopt
Indexed from awesome-llmops and enriched against its public facts.
Pros
- Scalable Bayesian optimisation with support for parallel evaluations
- Open source with active community contributions
- Integrates well with existing Python workflows
Cons
- Limited to Bayesian optimisation methods, not a general optimization library
- Requires careful selection of acquisition functions for best results
- Smaller community compared to alternatives like Optuna or Hyperopt
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