OpenAI's Sign in with ChatGPT, announced at DevDay on Tuesday, lets you log in to participating apps with your ChatGPT account. Plus and Pro users can also let those apps use their plan's ChatGPT Work and Codex allowance, with no API key needed. OpenAI lists 16 partners, including Cognition's Devin, Notion and Vercel.
You can now use your ChatGPT subscription directly in over 16 partners products. No little rules, you can just use all your included usage right there. This includes things such as Devin, OpenCode, Notion, and many more.
— Tibo (@thsottiaux) September 29, 2026
Sign in with ChatGPT and go.
You can cap each app's weekly share in Settings > Usage, and apps don't get your chats or memories. Plan usage is a limited preview, per OpenAI's help center.
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