How prevalent is GPT-4 api access? I feel like I've been on the waiting list for forever, yet this tool has GPT-4 as the default.
GPT-4 isn't the default - it uses gpt-3.5-turbo by default, because that's massively cheaper.
If you want to run against GPT-4 (and your API key has access) you can pass "-4" or "--gpt4" as an option.
CORRECTION: Sorry, I was talking about my "llm" tool - https://github.com/simonw/llm - it looks like "mods" does indeed default to 4: https://github.com/charmbracelet/mods/blob/e6352fdd8487ff8fc...