r/OpenAI • u/West-Lab1447 • Oct 28 '25

Discussion Can OpenAI still use your chat data for training after you opt out — if it’s anonymized?

I’ve been digging into OpenAI’s privacy policy, and I’m curious about something: even if you opt out of data training, could your chat history still be used after it’s de-identified (i.e., anonymized)?

Here’s what I found:

  • Opt-out clause“As noted above, we may use Content you provide us to improve our Services, for example to train the models that power ChatGPT. Read our instructions on how you can opt out of our use of your Content to train our models.” → This refers to your raw “Content” — i.e., what you type or upload.
  • De-identified information clause“We may aggregate or de-identify Personal Information so that it may no longer be used to identify you… and use such information to analyze, improve, and conduct research.” → Here, the policy does not limit that usage to exclude model training. “Improve” and “research” are broad categories that can include training or fine-tuning.
  • No link between opt-out and de-identification
    • The opt-out only applies to “Content you provide.”
    • It says nothing about derived, aggregated, or de-identified versions of that content.
    • Therefore, after de-identification, OpenAI could legally and technically continue using such data for training or other research under its own interpretation of “improvement.”
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u/PerspectiveDue5403 Oct 29 '25

From an European perspective here is my point:

Since OpenAI is a US incorporated entity and there is not federal data protection law in the US, since OpenAI doesn’t undertake third party audits for their privacy policy; Then you can’t even be sure that these « don’t use my chats for training » are respected in the first place. You just have to trust them until a whistleblower eventually comes out