I'm with al_borland on this one.

Anthropic have an identical clause. Section 4 of the Consumer Terms

> As between you and Anthropic, and to the extent permitted by applicable law, you retain any right, title, and interest that you have in the Inputs you submit. Subject to your compliance with our Terms, we assign to you all of our right, title, and interest—if any—in Outputs.

https://www.anthropic.com/legal/consumer-terms

^ This took me all but 5 minutes to find on google btw