High temperature settings basically make an LLM choose tokens that aren’t the highest probability all the time, so it has a chance of breaking out of a loop and is less likely to fall into a loop in the first place. The downside is that most models will be less coherent but that’s probably not an issue for an art project.
I think the model being fixed is a fascinating limitation. What research is being done that could allow a model to train itself continually? That seems like it could allow a model to update itself with new knowledge over time, but I'm not sure how you'd do it efficiently
In order to make this probability distribution useful, the software chooses a token based on its position in the distribution. I'm simplifying here, but the likelihood that it chooses the most probable next token is based on the model's temperature. A temperature of 0 means that (in theory) it'll always choose the most probable token, making it deterministic. A non-zero temperature means that sometimes it will choose less likely tokens, so it'll output different results every time.
Hope this helps.