Caveat emptor indeed. LLM-as-a-Service vendors know their customer and this customer’s needs. It’s not you. They’re selling an API to companies for whom safety and governance are part of the value proposition.
As others have mentioned, the data retention aspect is specifically /not/ an issue with OpenAI (and other vendors’) APIs.
I don’t really get the saltiness so many on this site have towards LLM vendors. It just sounds entitled.