I don't think there are good prompts for this. ChatGPT sees the world in tokens, not letters. That makes it an uphill battle to make it reason about individual

I don't think there are good prompts for this. ChatGPT sees the world in tokens, not letters. That makes it an uphill battle to make it reason about individual letters. It's not impossible (it can tell you the first letter or the number of letters of words with decent accuracy) but it certainly has a harder time than a human raised on words composed of letters has. This would be a good usecase for networks trained on letters instead of tokens, but I'm not sure if any big ones exist, since for 99% of tasks tokens are just better