> OpenAI/ChatGPT/Codex, Anthropic/Claude and Google/Gemini all do this.

1. Everyone doing this doesn't mean it's acceptable.

2. Google Gemini explicitly says right under the chat box if you are a paid subscriber (Workspace):

     Your <company name> chats aren’t used to improve our models. Gemini is AI and can make mistakes.

My comment was not meant to excuse what they're doing, just to point out that it's the bad status quo for these services

I think anyone using a "Team" or enterprise plan of ChatGPT/Claude/Copilot doesn't have their data used for training, that's the same across the board.