San Francisco, October 1 — OpenAI has announced a significant expansion of ChatGPT’s plug-in system, enabling developers to build their own app-like experiences within the platform. This update was unveiled during OpenAI’s DevDay presentation on Tuesday, September 26, 2026. The new plug-in extensions will appear in a dedicated section of the ChatGPT sidebar, allowing users to access a wide range of tools and services directly within the platform.
These extensions support interactive panels that enable users to work with connected tools while chatting, including file viewers compatible with the developer’s product formats.
Streamlining Development
OpenAI has introduced a new Plugin Creator tool to simplify the development process, making it easier for developers to build and submit their own plug-ins. The company has also redesigned the submission flow to the plug-in directory, providing clearer feedback to developers and improving the overall user experience. The update also includes improvements to how plug-ins are ranked and recommended within the directory and during conversations.
Users can now individually approve access permissions when selecting a plug-in, giving them greater control over their experience. Additionally, ChatGPT Sites — lightweight websites that users can build with ChatGPT — can host these plug-ins, allowing users to share apps with colleagues who can use them with their own data and permissions.
Enhanced Automation Capabilities
OpenAI is adding support for the proposed MCP Events specification, which will enable plug-ins to trigger automations based on events in connected applications. The company is also simplifying the process of adding and managing automations within ChatGPT, making it easier for users to streamline their workflows and increase productivity. As the landscape of artificial intelligence continues to evolve, OpenAI’s latest update is a significant step forward in terms of innovation and user experience.
With its expanded plug-in system and enhanced automation capabilities, ChatGPT is poised to become an even more powerful tool for users across a wide range of industries and applications.
Looking Ahead
As we look to the future, it will be exciting to see how developers and users alike take advantage of OpenAI’s latest update. With its potential to revolutionize the way we work and interact with technology, this development is certainly one to watch. As the story continues to unfold, we can expect to see new and innovative applications of ChatGPT’s expanded capabilities, and we will be keeping a close eye on the latest developments in this rapidly evolving field.
