Huggingface.co/spaces/johnnygreco/the-gpt-who-lived is an AI model that generates Harry Potter-themed stories and content. It is a fine-tuned version of the GPT-2 language model, trained on the Harry Potter book series and fan fiction.

Huggingface.co/spaces/johnnygreco/the-gpt-who-lived is a free-to-use web application. However, the underlying GPT-2 model and Hugging Face platform may have separate pricing or subscription options for more advanced usage.