ChatGPT memory full: what to do
Since October 2025, ChatGPT can manage saved memories itself. If you still see “memory full”, try these.
Updated 18 October 2026
In ChatGPT
Sources: release notes, 15 October 2025, memory.
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Let ChatGPT manage memories
On Plus and Pro, it keeps the important ones in front and moves the rest back. If you turned that off, turn it on in Settings → Personalization → Memory.
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Delete what you don’t need
Settings → Personalization → Memory → Manage. Old and one-off details go first.
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Lean on chat history
Reference chat history has no storage limit of its own.
Keep project details out of it
SkyOS keeps each project’s decisions as its own dated notes, outside ChatGPT’s memory, so they take none of its space.
It works on ChatGPT’s free plan too.
Free during the beta, up to 1,000 saved messages a month.