# OpenAI Opens ChatGPT Subscription Usage to Third-Party Apps

> OpenAI lets ChatGPT subscribers use AI features in third-party apps without extra costs.
- Title: OpenAI Opens ChatGPT Subscription Usage to Third-Party Apps
- Summary: OpenAI lets ChatGPT subscribers use AI features in third-party apps without extra costs. OpenAI now allows ChatGPT Plus and Pro subscribers to use AI…
- Keywords: openai, chatgpt, chatgpt plus, chatgpt pro, third party apps, ai costs, developer tools, devday exchange seoul, finance, markets, Opens, Subscription
- Source: BigGo Finance — https://finance.biggo.com/news/dd114745-c7a2-498f-b97a-ca452b91138e
- Author: BigGo Finance
- Published: 2026-10-22T11:05:35+00:00
- Read time: 1 min
- Topics: openai, chatgpt, chatgpt plus, chatgpt pro, third party apps, ai costs, developer tools, devday exchange seoul, finance, markets
## OpenAI opens ChatGPT subscription usage
OpenAI is opening the usage limits of paid ChatGPT subscribers to external applications built on its models.
## Sign in with ChatGPT feature
Users can link their ChatGPT account to external apps to access ai features without separate api keys or billing.
## 16 partners in first wave
Devin, Notion, and Vercel are among 16 partners supporting the feature initially.
## Usage pooled into subscription limits
ChatGPT usage in external apps counts against existing subscription limits, not increasing them.
## Plug-in extension feature
Developers can run services directly inside the ChatGPT interface through plug-in extensions.
## Albert Yip's statement
Yip said he wants to help users discover developer products and connect developers with new customers.
## Cost structure shift
OpenAI aims to shift ai app ecosystem costs toward user subscriptions to improve developer incentives.
## Key takeaway

OpenAI now allows ChatGPT Plus and Pro subscribers to use AI features in external apps through their subscription, reducing costs for developers.