> While unlikely, we cannot rule out that de-identified data derived from their usage of our products helped improve our models .

That’s a bizarre statement. Their website says:

> Services for individuals, such as ChatGPT and Codex

> When you use our services for individuals such as ChatGPT and Codex, we may use your content to train our models.

> You can opt out of training through our privacy portal by clicking on “do not train on my content.”

Are they not sure that the opt-out works?

Oddly, their privacy portal page is not the same page as the one with the checkbox.