“Given this lack of transparency, there’s no way to confidently state that private data that is passed to them isn’t being used to further train future versions of these models.”
GPT-4, PaLM 2 and Claude all refuse to say what is in their training data. OpenAI’s no-training promise for API data only started on March 1, 2023. ChatGPT conversations get used for training unless you opt out, and nobody outside OpenAI knows what “training” means there. One paragraph from the vendors would settle it, and their silence is the answer.