Options for an interactive chat mode:

• It's a new command - llm chat -m gpt-4 for example. This feels a bit odd since the current default command is actually llm chatgpt ... and llm chat feels confusing.
• It's part of the default command: llm --chat -4 starts one running.

Maybe the llm chatgpt command is mis-named, especially since it can be used to work with GPT-4.

I named llm chatgpt that because I thought I'd have a separate command for bard and for llama and so-on, and because I thought the other OpenAI complete APIs (the non-chat ones, like GPT-3) may end up with a separate command.

Originally posted by @simonw in #6 (comment)