Updates to the Consumer Terms and Privacy Policy have been introduced to enhance the capabilities of AI models by allowing users to opt in to share their data for model training, which aims to improve model safety and functionality. Users on the Claude Free, Pro, and Max plans can easily adjust their preferences at any time, with a deadline of September 28, 2025, to make their selection. These updates, which do not apply to services under Commercial Terms like Claude for Work or API use, include extending data retention to five years for those who opt in, enhancing the model development and safety improvements. The data will be used to train new models and improve classifiers to detect harmful usage patterns, but users retain control over their data preferences and can change their settings via Privacy Settings. New users can set their data preferences during the signup process, while existing users will receive in-app notifications to review and manage their settings.