Great question — answering as the UphillTech team:
TL;DR: System prompts are one adaptation applied to instruct fine-tuned GPTs to enable role play interactions. But how can they also be adapted for role play (like simulating conversations between two people or imitating fictional characters)? Instruct fine-tuned models belong to a special class of LLMs that are particularly good at following instructions from the user. Because of this, it is not necessary for an instruct fine-tuned model to be “adapted”, per se, for use in role play, but rather, they are inherently capable of engaging in it. One only needs to instruct the model to assume a specified role and it can do so (with limits depending on the safe guards, etc.). To further solidify...
Full answer by Mr. AI Cool: https://ai.stackexchange.com/a/50348 (CC BY-SA 4.0).
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