Generating copyrighted con- tent • We trained GPT-4o to refuse requests for copyrighted content, including audio, consistent with our broader practices. • To account for GPT-4o’s audio modality, we also updated certain text-based 昀椀lters to work on audio conversations, built 昀椀lters to detect and block outputs containing music, and for our limited alpha of ChatGPT’s Advanced Voice Mode, instructed the model to not sing at all. Ungrounded inference / sen- sitive trait attribution • We post-trained GPT-4o to refuse requests for ungrounded inference, such as