We may use Content to develop and improve our Services... You can opt out of having your Content used to improve model performance by following the instructions in our Help Center article.
This is the single most significant data practice in the document — it means every conversation you have with ChatGPT may be used to make the AI better, including any personal or sensitive information you share, and you have to actively opt out rather than opt in.
OpenAI's Terms of Use affect consumers primarily through the default permission for OpenAI to use conversation data — including prompts and AI outputs — to improve its AI models, which means sensitive or personal information shared with ChatGPT may be retained and analyzed beyond the immediate session. Minors under 13 are prohibited from using the services, and those aged 13–17 require verifiable parental consent, but the adequacy of age verification mechanisms is not detailed in the terms themselves. You can opt out of having your conversations used for model training by navigating to your ChatGPT account settings and disabling the 'Improve the model for everyone' toggle.