Export your memory from Perplexity
Perplexity keeps an editable list of what it remembers about you, viewable directly in settings.
Open your memory settings
In Perplexity, go to Settings → Personalize → Manage Memories. You'll see each individual memory it has stored, with the option to delete any of them.
Copy what's listed
Copy everything shown there as your portable profile.
Source: Perplexity Help Center ↗
Perplexity's help center confirms the Memory feature and its Settings → Personalize → Manage Memories location. We couldn't find a way to import memory into Perplexity from elsewhere, so this is an export-only guide for now.
Import memory into ChatGPT
ChatGPT has no dedicated import tool, but its memory feature explicitly saves anything you ask it to remember — so a direct request does the job.
Make sure Memory is turned on
In ChatGPT, go to Settings → Personalization → Memory, and confirm it's enabled.
Paste your profile and ask ChatGPT to remember it
In a new chat, paste this prompt with your memory profile in place of the bracketed instruction.
I'm sharing a structured profile of facts, preferences, and context about me that I'd like you to remember going forward. Please save each distinct item below as its own individual memory — don't collapse them into one summary note, save them separately so each can be recalled on its own. After you've done that, list back exactly what you saved so I can confirm nothing was missed or altered. [paste your memory profile here]
Confirm what was actually saved
Check Settings → Personalization → Memory → Manage memories afterward — that's the real source of truth for what got saved, not just what ChatGPT says back in the chat.
Source: OpenAI Help Center — Memory FAQ ↗
This documents how ChatGPT's memory feature works in general — it isn't a guide specific to migrating from another AI service, since no such guide currently exists.