AFAIK it's finding out what prompts to use for what LLM to get the answer your want E.g. this > Compare response quality across prompt permutations, across mo

AFAIK it's finding out what prompts to use for what LLM to get the answer your want E.g. this > Compare response quality across prompt permutations, across models, and across model settings to choose the best prompt and model for your use case.