Installation

sbi requires Python 3.10 or higher. A GPU is not required, but can lead to speed-up in some cases. We recommend using a conda virtual environment (Miniconda installation instructions). If conda is installed on the system, an environment for installing sbi can be created as follows:

# Create an environment for sbi (indicate Python 3.10 or higher); activate it
$ conda create -n sbi_env python=3.10 && conda activate sbi_env

Independent of whether you are using conda or not, sbi can be installed using pip:

python -m pip install sbi

To install and add sbi to a project with pixi, from the project directory run

pixi add sbi

and to install into a particular conda environment with conda, in the activated environment run

conda install --channel conda-forge sbi

If uv is installed on the system, an environment for installing sbi can be created as follows:

uv venv -p 3.10

Then activate the virtual enviroment by running:

• For macOS or Linux users

  source .venv/bin/activate
  

• For Windows users

  .venv\Scripts\activate
  

To install sbi run

uv add sbi

To test the installation, drop into a Python prompt and run

from sbi.examples.minimal import simple
posterior = simple()
print(posterior)