- [previous_chapters.py](previous_chapters.py) is a Python module that contains the GPT model we coded and trained in previous chapters, alongside many utility functions, which we reuse in this chapter
- [gpt_class_finetune.py](gpt_class_finetune.py) is a standalone Python script file with the code that we implemented in [ch06.ipynb](ch06.ipynb) to finetune the GPT model (you can think of it as a chapter summary)