[anotherpaulg]

Sounds like maybe your source files are bigger than the context window? Try including fewer files in the chat. See some notes on GPT models and file sizes here:

https://github.com/paul-gauthier/aider#gpt-4-vs-gpt-35

I also have some incoming improvements so the tool is more graceful and helpful if you hit the context window limit. And in general, most of my main efforts are focused on making it possible to work with larger and larger codebases in spite of the context window limitations.

Please do file an issue with more details on your problems. I can try and help and give you updates if I make improvements to the tool which could solve your use case.