Comment by pama

In addition to the project you mentioned, there is quite an ecosystem for Emacs working with API-based LLM:

https://github.com/emacs-openai/chatgpt

https://github.com/stuhlmueller/gpt.el

https://github.com/rksm/org-ai

https://github.com/joshcho/ChatGPT.el

https://github.com/rksm/gptel