OpenAI developers want to be able to create applications that take advantage of all the advantages of ChatGPT, so that users can converse with their apps in a natural and fluid way, just as they do when talking directly to ChatGPT. This new feature promises to transform the way we interact with our phones and the apps we use every day.

Apps within ChatGPT: More than just a chat

What OpenAI presented at its latest DevDay 2025 is a true revolution in the artificial intelligence ecosystem: an SDK (software development kit) that will allow developers to build apps within ChatGPT. In other words, these apps won't just be programs that we access separately, but will be integrated into the ChatGPT conversation itself, facilitating a much more fluid and dynamic interaction.

This means that, for example, you can ask ChatGPT to help you design a poster using Canva, browse and filter real estate listings using Zillow, or even watch videos and ask questions about them on Coursera, all without leaving the chat window. Conversation with apps will be as natural as a ChatGPT conversation, and artificial intelligence will understand the context and needs to respond and act in real time.

To achieve this, OpenAI leverages the Model Context Protocol (MCP), an open standard that allows the integration of external tools and data directly into the conversation. With the SDK, developers have full control over both the logic and the app interface, and can connect these services to their backend systems to maintain functionalities such as login or exclusive features.

Conversing with apps on your phone: a personalized experience

OpenAI's big promise is that this technology will be available not only on the web or computers, but also in mobile applications. This opens the door to any app on your phone having ChatGPT's intelligent conversation capabilities built in. Imagine being able to interact with your banking app, shopping, travel, or health simply by speaking, and have it respond with the same understanding and context that ChatGPT offers today.

In addition,the system will allow for a much more adaptive and personalized experience. When you connect an app, ChatGPT will ask you for permission to access certain data, with a high standard of privacy and transparency. There will also be controls to decide what data each app can use to offer more relevant results, without compromising your security or privacy.

This approach opens up many interesting scenarios for users, such as asking for personalized recommendations, receiving help completing complex tasks, or simply having a conversational interface where multiple applications work together appropriately based on your needs.

What does this mean for developers and users?

For developers, this is a huge opportunity to design new experiences and reach millions of ChatGPT users more easily. The preview SDK is now available so you can start experimenting and building your own integrated apps, and OpenAI plans more development tools and reusable components to accelerate innovation.

On the other hand, users gain the ability to leave behind rigid interfaces and traditional modes of interaction. Conversing with apps will be natural, immediate, and fun, like talking to a smart assistant that truly understands what you want. This new generation of apps promises to be more interactive, adaptive, and efficient at solving problems in real time.

OpenAI is transforming ChatGPT into a universal platform for smart apps, where we can converse with the apps on our phones just like we do with ChatGPT. This not only improves usability and productivity, but will make artificial intelligence truly accessible and present in almost every aspect of our daily digital lives.