Reference saved memories - Let ChatGPT save and use memories when responding.
Reference chat history - Let ChatGPT reference all previous conversations when responding.
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It is a setting that you can turn on or off. Also check on the memories to see if anything in there isn't correct (or for that matter what is in there).
For example, with the memories, I had some in there that were from demonstrating how to use it to review a resume. In pasting in the resumes and asking for critiques (to show how the prompt worked and such), ChatGPT had an entry in there that I was a college student looking for a software development job.
chatGPT definitely knows a ton about myself and recalls it when i go and discuss same stuff.