If using conda, install via conda-forge:

ct2-transformers-converter --help

pip list | grep ctranslate2

The [transformers] suffix tells pip to install the necessary dependencies (like transformers and torch ) required to actually run the conversion scripts. 2. Check your PATH

Common locations:

conda activate myenv conda install -c conda-forge ctranslate2 ct2-transformers-converter --help

The tool ct2-transformers-converter is a command-line utility included in the Python package ctranslate2 . It is designed to convert Hugging Face Transformers models into the CTranslate2 format. Because it is an entry point script, its behavior during installation depends heavily on how your Python environment is managed.

pip install ctranslate2

python -m ctranslate2.converters.transformers --model openai-community/gpt2 --output_dir ./gpt2-ct2