👉 Click here to go to the builder. 👈

This repository contains a web app to create simple turn-based experiments with LLMs.

See ego and read our paper.

The builder was created using Svelte and Bootstrap. To compile, run npm run build.

When using any part of alter_ego in a scientific context, please cite the following work:

@article{ego,
  title={Integrating Machine Behavior into Human Subject Experiments: A User-friendly Toolkit and Illustrations},
  author={Engel, Christoph and Grossmann, Max R. P. and Ockenfels, Axel},
  year={2023},
}

ego_builder is © Max R. P. Grossmann et al., 2025. It is licensed under 0BSD. Please see LICENSE for details.

This program is distributed in the hope that it will be useful, but without any warranty.