Anthropic sent out an email, saying they will train on personal data. They made it sound like you have to opt in, but when I click the privacy link it defaults to on. If you don’t want your data trained on, you better manually turn it off. Email: Hello, We're writing to inform you about important updates to our Consumer Terms and Privacy Policy. These changes will take effect on September 28, 2025, or you can choose to accept the updated terms before this date when you log in to Claude.ai. These changes only affect Consumer accounts (Claude Free, Pro, and Max plans). If you use Claude for Work, via the API, or other services under our Commercial Terms or other Agreements, then these changes don't apply to you. What's changing? Help improve Claude by allowing us to use your chats and coding sessions to improve our models With your permission, we will use your chats and coding sessions to train and improve our AI models. If you accept the updated Consumer Terms before September 28, your preference takes effect immediately. If you choose to allow us to use your data for model training, it helps us: Improve our AI models and make Claude more helpful and accurate for everyone Develop more robust safeguards to help prevent misuse of Claude We will only use chats and coding sessions you initiate or resume after you give permission. You can change your preference anytime in your Privacy Settings. Updates to data retention– your choices and controls If you choose to allow us to use your data for model training, we’ll retain this data for 5 years. This enables us to improve Claude through deeper model training as described above, while strengthening our safety systems over time. You retain full control over how we use your data: if you change your training preference, delete individual chats, or delete your account, we'll exclude your data from future model training. Learn more about our data retention practices here. Learn more and next steps For detailed information about these changes: Read our blog post about these updates Review the updated Consumer Terms and Privacy Policy Visit our Privacy Center for more information about our practices See our Help Center articles on how to manage your privacy settings Next time you log into Claude, review the terms and confirm your settings If you have questions about these updates, please visit our Help Center. –The Anthropic Team