Make it possible to override the model using an environment variable

[mikekelly]

✌️

[taylor-ennen]

LG2M came here to do similar

[seanpixel]

this is good, thank you. but you will notice that GPT3.5 has a hard time keeping up with all the given context and will often make mistakes

[mikekelly]

@seanpixel yeah I bumped into this so it's just an undocumented configuration option for people ok with hurting themselves! :)