OpenAI launches ChatGPT login feature for seamless cross-platform access

On September 30, 2026, OpenAI introduced the 'Sign in with ChatGPT' feature during its 2026 Developer Day event. This functionality allows users to log into compatible external applications using their ChatGPT account, streamlining the cross-platform authentication process. The feature is now available globally to all verified ChatGPT users, enabling them to connect applications through the 'Sign in with ChatGPT' or 'Continue with ChatGPT' options. OpenAI Academy and the ChatGPT website have already implemented the feature, with plans to expand to additional plugins and partner sites. OpenAI emphasized that external applications will only receive users' names, email addresses, and profile pictures, without access to ChatGPT conversation history, memory, files, tokens, billing information, or other account data. For enterprise users, availability depends on administrator settings, with default settings enabling the feature unless specific policies are in place.