AI assistants make moving in easy, but moving out hard: a ChatGPT export takes up to 7 days

[ChatGPT](/tools/chatgpt) takes up to 7 days to deliver a chat archive, and the link in the email expires after 24 hours. Moving in works the other way: [Gemini](/tools/gemini) accepts another service's archive of up to 5 GB right in settings, and Claude promises to transfer memory in a minute (data as of Oct 30, 2026).