# ChatGPT Hacks **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Tags:** ai\ **Created:** [February 15, 2023, 7:40pm UTC](https://boards.straightdope.com/t/chatgpt-hacks/979848 "2023-02-15T19:40:40Z")\ **Posts on this page:** 1\ **Showing post:** 21
**Author:** ![Ponderoid](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ponderoid/32/19221_2.png) [@Ponderoid](https://boards.straightdope.com/u/Ponderoid)\ **Post date:** [April 6, 2023, 1:40am UTC](https://boards.straightdope.com/t/chatgpt-hacks/979848/21 "2023-04-06T01:40:25Z")
Starting [around post#8 in this thread](https://boards.straightdope.com/t/do-you-know-anyone-who-is-literate-in-rot13/982221/8) there’s some discussion about how ChatGPT groks rot13. I wondered if it was able to do so well because there was plenty of samples of rot13 in its training data, so I thought I’d give ChatGPT-4 a test on something that almost certainly did not exist as words or tokens anywhere: Translate the following nonsense word into Rot-13: Mawplophinating. And it answered: “Znjcybucvangvat,” which interestingly enough is not perfectly correct. That string translates back to “Mawplohpinating,” note the letter transposition. I checked OpenAI’s free tokenizer, which apparently doesn’t have a version for GPT-4 yet, and my original word tokenized as M, aw, pl, oph, inating I asked it to do the same nonsense word in rot-14 and it came back as “Nboxqmvqbwjupq” which turned out to be nowhere near correct, just a jumble of characters when I tried to rot-12 them back. I noted the first 2 letters of that were Rot-1, but the rest, who knows. --- _[View the full topic](https://boards.straightdope.com/t/chatgpt-hacks/979848)._