OpenAI treats data sent via the ChatGPT API with a high level of security. As of March 1st, 2023, the data you send through the API is retained for 30 days, but OpenAI has committed to not use it to improve the models. Keep in mind that OpenAI has implemented various measures to protect this data from unauthorized access. However, always check the latest data usage policies on OpenAI’s platform before sending sensitive information.