AI security and privacy: Comparing ChatGPT, Claude, and ExpressAI

Artificial intelligence platforms present varying levels of security and privacy protections for users. Regarding account security, ChatGPT and Claude allow users to identify and terminate specific active sessions. In contrast, Perplexity does not display connected devices, requiring users to log out of all sessions to ensure security.

Security protocols also differ by provider. ChatGPT and Perplexity support multi-factor authentication, while Claude utilizes email-based login links rather than traditional passwords.

On the privacy front, many generative AI tools store conversation histories and use user data for model training. ExpressAI is positioning itself as a privacy-focused alternative by utilizing encryption and deleting user data immediately after generating responses, aiming to address concerns regarding data leaks and server-side processing.