The AI Daily Brief · Wednesday, September 30, 2026
OpenAI has introduced 'Sign in with ChatGPT,' allowing users to authenticate into other applications using their ChatGPT credentials. This feature aims to reduce friction for app developers and users by bundling services and potentially aligning incentives, allowing apps to charge for their layer without users double-paying for tokens.
“Sign in with ChatGPT lets you use any app built with our API. It makes it much better for app developers not needing to jump a huge hill justifying paying a separate subscription.”
“Sign in with ChatGPT is a huge deal. And I don't understand why they framed it as auth when it's really OpenAI expanding favorite pricing to third parties and bundling services into the subscription.”
“In other words, the idea here is that instead of apps having to charge what looks like huge prices to get access to intelligence, they can just charge their $20 or whatever they wanted to price their app at, and let the API costs flow through to the underlying.”