Suno uses user activity data, submitted prompts, and content generated through its service to train and improve the AI models that power its platform, as disclosed in its privacy policy.

Suno's Privacy Notice states that the company uses 'User Activity Information, Submissions, Interactive Chat Information, and other Content to improve our Services, product offerings, promotional activity, and business, including to train and enhance the models that power our Services.' The dataset used to train the original AI models has not been publicly disclosed by Suno. In 2024, major record labels sued Suno, alleging training on copyrighted recordings without permission; Suno acknowledged using copyrighted music in training while arguing it falls under fair use.