We have been using GPT to write code since playground days. This UI avoids logins, gpt-4 throttling and is also cheaper to use than ChatGPT Premium. We also have various features to minimize costs and speed up iteration.

Furthermore html & mermaid previews are a taste of the kind of features help-yourself opensource model enables vs official UI.

For backstory see our blog posts:

https://blog.humphd.org/chatcraft-org/

https://taras.glek.net/post/chatcraft.org-opensourcechatgpt-...