To an extent, think about vested interests here. Mozilla has little to gain by showcasing how clear a rival's new service agreement is!
The AI services section seems pretty clear in terms of limiting the use cases of user content:
"iv. Use of Your Content. As part of providing the AI services, Microsoft will process and store your inputs to the service as well as output from the service, for purposes of monitoring for and preventing abusive or harmful uses or outputs of the service."
Admittedly, I haven't read other parts to understand the full picture though.
The AI services section seems pretty clear in terms of limiting the use cases of user content:
"iv. Use of Your Content. As part of providing the AI services, Microsoft will process and store your inputs to the service as well as output from the service, for purposes of monitoring for and preventing abusive or harmful uses or outputs of the service."
Admittedly, I haven't read other parts to understand the full picture though.