Just tried this with an interpersonal situation I'm going through. The default seems to be Claude 3.5 Sonnet and ChatGPT-4o. I got the results I've come to expect from those two, with the latter better at non-programming kinds of prompts.
The app presented the option of prompting additional models, including Gemini Flash 2.0, one I'd never used before. It gave the best response and was surprisingly good.
Curious to know how Chorus is paying for the compute, as I was expecting to have to use my own API keys.