OpenAI Explores 'Sign in with ChatGPT' Feature for Third-Party Apps

OpenAI may soon let you 'sign in with ChatGPT' for other apps | TechCrunch

OpenAI is exploring ways for users to sign in to third-party apps using their ChatGPT account, the company noted on a web page published Tuesday. OpenAI is currently gauging interest from developers who might want to integrate this service into their apps. ChatGPT is quickly becoming one of the largest consumer application in the world, now with roughly 600 million monthly active users. To capitalize on this popularity, OpenAI seems eager to try and expand into other consumer areas, such as online shopping, social media, and personal devices. A potential "Sign in with ChatGPT" feature could help OpenAI compete with other massive consumer technology companies -- such as Apple, Google, Microsoft -- that help people with a wide range of online services, including a quick way to sign in to third-party apps. Earlier this month, OpenAI launched a preview of the "Sign in with ChatGPT" experience for developers in Codex CLI, the company's open source AI coding tool for terminals. The feature let developers connect their ChatGPT Free, Plus, or Pro accounts to their API accounts. OpenAI offered Plus users $5 in API credits to sign in with ChatGPT, and Pro users $50 in API credits. OpenAI seems to be interested in integrating the sign-in service with a broad array of companies. The developer interest form asks for companies to specify their app's user base, ranging from tiny companies with fewer than 1,000 weekly users to massive apps with over 100 million weekly users. The form also asks developers how they charge for AI features today and whether they're customers of the OpenAI API. CEO Sam Altman noted in 2023 that the company may look into a "sign in with OpenAI" feature in 2024. However, it now appears OpenAI is more seriously building out the capability today, in 2025. It's unclear when the sign-in feature would go live for users of ChatGPT or how many companies have signed up to be part of it. OpenAI did not immediately respond to TechCrunch's request for comment.

OpenAI's ChatGPT could be your new login system

OpenAI is considering allowing users to sign in to third-party applications using their ChatGPT accounts, according to a company web page published on Tuesday. The company is soliciting interest from developers to integrate this service. ChatGPT currently has approximately 600 million monthly active users globally. OpenAI appears to be exploring opportunities to expand into sectors such as online shopping, social media, and personal devices. The potential "Sign in with ChatGPT" feature could position OpenAI as a competitor to companies like Apple, Google, and Microsoft, which offer sign-in services to third-party apps. Earlier in May 2025, OpenAI launched a preview of the "Sign in with ChatGPT" experience for developers in Codex CLI, its AI coding tool for terminals. This feature allowed developers to connect their ChatGPT Free, Plus, or Pro accounts to their API accounts. OpenAI offered Plus users $5 in API credits and Pro users $50 in API credits for using this sign-in feature. OpenAI's ChatGPT just refused to die According to a post on X from user Nick Dobos, a "Sign in with ChatGPT" feature is imminent. Dobos stated, "sign in with chatGPT is about to be EVERYWHERE." OpenAI's developer interest form requests that companies specify their app's user base, ranging from companies with fewer than 1,000 weekly users to apps with over 100 million weekly users. The form also inquires about how developers currently charge for AI features and whether they utilize the OpenAI API. CEO Sam Altman indicated in 2023 the possible development of a "sign in with OpenAI" feature in 2024. The company is now actively developing this capability in 2025. The release date for ChatGPT users and the number of participating companies remain unknown.

OpenAI Wants to Let You Sign In to Third-Party Apps Using ChatGPT

OpenAI could gain visibility into its users' third-party app usage OpenAI published a form on Tuesday to understand if third-party app developers would prefer their users to sign in using ChatGPT accounts. If implemented, the San Francisco-based AI firm will become an identity provider (IDP) for third-party apps, and let them Open Authorisation (OAuth) via ChatGPT accounts. Notably, the company has already added a similar experience in its recently released Codex CLI platform. Based on the form, OpenAI is gauging interest from smaller apps with fewer than 1,000 weekly active users to larger apps with up to 100 million weekly active users. The interest form is currently live on OpenAI's website. It seeks information such as details of the developer and the app, the app's AI monetisation model, weekly active users, and whether they already use the company's API to power AI features. As mentioned above, OpenAI has already created a similar "Sign in to Codex CLI with ChatGPT" experience, where the users of the terminal can log into the platform using their existing ChatGPT accounts. The company highlights that it shares the user's name, email, and profile picture with the platform, but not the chat history. Last year, OpenAI CEO Sam Altman mentioned in a post on X (formerly known as Twitter) that users had requested the OAuth feature, and the company was planning to build the capability. If the AI firm ends up offering the service to apps, it will join the ranks of Google, Apple ID, Microsoft Azure Active Directory, and Facebook. This move can theoretically bring several strategic advantages to OpenAI as well. By letting users log into other apps with their ChatGPT account, the company can gain visibility into which apps and services its user base engages with and how. This will allow it to personalise ChatGPT or tailor the AI interaction accordingly. Another potential benefit is that developers might also integrate ChatGPT into their apps, either as a sidebar offering (similar to Copilot and Gemini) or via API. This will ensure that users are spending more time within the OpenAI ecosystem. OpenAI will also be able to establish itself as a trusted, secure, and central identity layer for AI-powered apps and build a more recognisable brand identity as a platform company. Additionally, if users use ChatGPT to log into other services, they are more likely to remain logged into ChatGPT, increasing user retention and stickiness for the company. However, these are early days, and we will have to wait before OpenAI formally introduces its OAuth service with third-party apps before the company's larger vision becomes apparent.