Sign in with ChatGPT lets apps use users' existing subscription tokens, a game changer

petergyang · x · 2026-09-30

OpenAI's new "Sign in with ChatGPT" lets developers authenticate users with their ChatGPT accounts and let them use their existing subscription tokens inside third-party apps. The author calls it a game changer: users don't pay again and apps skip model billing entirely.

Related event: OpenAI Launches Sign in with ChatGPT, Letting Subscriptions Work Across Third-Party Apps(5 posts)→

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