Gemini trains on chat history, even for subscribers (personal accounts)
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Ranked by a public rubric, not by votes: what a comment adds counts, not who wrote it. How comments are ranked · Comment rules
Summary
A Hacker News post, citing Google's own support pages, claims that Gemini chat history on personal paid subscriptions can be used to train AI models unless users turn off "Keep activity," which deletes chats after 72 hours.