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ChatGPT evolves into AI OS: OpenAI opens up third-party apps, paving the way for the future

ChatGPT: The AI ​​OS is Here as OpenAI Welcomes Third-Party Apps

Will ChatGPT evolve into an AI operating system? OpenAI opens the door to third-party apps

Hi everyone. This is Jon. AI is evolving unstoppably. Today, I'd like to talk about OpenAI's latest move to further enhance ChatGPT. ChatGPT was originally an AI system that answered questions via chat, but a recent announcement revealed plans to evolve it into something like an "AI operating system (AI OS)." This means that various apps will be able to run within ChatGPT, making everyday tasks more convenient. This news was announced with great fanfare at OpenAI's DevDay event on October 6, 2025. For the uninitiated, an AI OS is a system in which AI is centrally responsible for managing apps and data. It's like a smartphone operating system, with ChatGPT as the foundation and integrating other tools.

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Why is the evolution of ChatGPT a hot topic now?

OpenAI aims to transform ChatGPT from a simple chatbot into a platform that supports users' daily lives. CEO Sam Altman spoke about this vision at DevDay on October 6, 2025. While ChatGPT previously focused on text-based conversations, the company's new "Apps SDK" will allow third-party developers to launch apps directly within ChatGPT. This will allow users to search for homes, play music, and create designs without leaving the chat screen. Popular services like Zillow (real estate search app), Canva (design creation tool), and Spotify (music streaming) are already participating as partners.

Behind this evolution lies OpenAI's goal of expanding the use cases for AI. ChatGPT began supporting plugins in 2023, and as of 2025, it is said to have over 800 million users. App integration is the natural next step. For beginners, imagine this: just tell ChatGPT to "plan a trip," and it will launch a flight booking app and even search for hotels all at once. We are approaching a world where AI functions like an operating system.

Specific new features announced at OpenAI's DevDay 2025

DevDay 2025 is a developer event where OpenAI showcases its latest technologies. This year, it was held on October 6th, and ChatGPT's app integration was the highlight. According to the official announcement, the Apps SDK is built on a technology called the "Model Context Protocol," allowing developers to build data-connected apps within ChatGPT. This allows apps to work naturally within chat conversations. For example, if a user says, "I want to create a new slide," the Canva app will launch and help with the design.

Here, we will introduce a related tool, "Gamma," which uses AI to instantly create documents and slides. Gamma is a service that uses AI to easily create presentation materials and websites, and seems to be a good fit with the evolution of ChatGPT's app integration. For more information,This articleWe explain this in detail, so if you're interested, please check it out.

  • App rollout schedule: Starting October 6, 2025, the service will be rolled out to Free, Go, Plus, and Pro users (outside the EU). Pilot partner apps will be available first, with more to come.
  • Benefits for developers: The Apps SDK gives you direct access to ChatGPT's 800 million users, facilitating app discovery in natural language.
  • User Benefits: Book travel, learn, shop, and more right within the chat, eliminating the need to switch between apps.

Additionally, OpenAI's official account on X (formerly Twitter) has been publishing videos of DevDay sessions and announcing AMAs (Ask Me Anything) on ​​Reddit. For example, a post on October 8th announced an event where developers of AgentKit and Apps SDK will answer questions. This information shows that OpenAI is accelerating its evolution by involving its community.

Technical points explained for beginners

Apps SDK stands for Software Development Kit, a set of tools for developers to create apps. By incorporating it into ChatGPT, AI can handle app data in real time. For example, if you're using the Spotify app, ChatGPT can play a recommended song and the music will play in the chat. Security is also taken into consideration, and data sharing is based on user permission. Beginners are encouraged to try the free version of ChatGPT first.

The future of ChatGPT and its impact on our lives

This announcement marks a major step toward positioning ChatGPT as an "AI OS." According to a VentureBeat article, OpenAI plans to transform ChatGPT from a chatbot into a fully fledged platform and enhance its commercial features. In the future, payments and data sharing may become even smoother, and everyday tasks may become AI-centric. However, data privacy concerns have also been raised, and OpenAI has responded to the question of how data will be handled by third-party apps. As of 2025, the rollout has begun outside the EU, so Japanese users should be able to experience it soon.

Also announced at DevDay were API updates for AgentKit (an AI agent creation tool) and GPT-5 Pro. These are the foundation for ChatGPT's app integration, enabling developers to create more advanced AI apps. For example, API integration for Sora 2 (a video generation AI) is also planned, which is expected to be used in the creative field.

  • Potential Use Cases:
  • Education: Launch learning apps within ChatGPT for interactive lessons.
  • Business: Integrate design and data analysis apps to streamline your work.
  • Entertainment: Enjoy entertainment with music and video apps.

These features will evolve over time, starting with plugin support in 2023 and progressing to the Apps SDK in 2025. OpenAI's X post also emphasizes continuous updates.

Summary and Jon's comments

ChatGPT's app integration is a revolutionary change that puts AI at the center of everyday life, opening up new opportunities for developers and expanding convenience for users. If you're interested in AI, check out the official website for more details.

If you want to try creating documents with AI,Gamma introduction articleCheck it out! It's gaining attention as the new standard.

To sum up, this evolution suggests that AI is moving beyond being a mere tool to becoming a foundation of our lives. Even if you're a beginner, I encourage you to start with a small app and experience the convenience of the future. Keep an eye on OpenAI's developments.

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