Editorial illustration for OpenAI Unveils AgentKit and Apps SDK, Expands Developer Tools at DevDay
OpenAI AgentKit Launches Revolutionary Developer Platform
OpenAI unveils AgentKit, Apps SDK, and new ChatGPT at DevDay 2025
OpenAI is doubling down on its developer ecosystem with a bold strategic move at DevDay 2025. The company just unveiled AgentKit, a new toolkit designed to simplify AI agent development, alongside an Apps SDK that promises to transform how developers interact with ChatGPT.
This isn't just another product launch. By introducing these tools, OpenAI is repositioning ChatGPT from a conversational AI into a full-fledged application platform and operating system for intelligent agents.
The announcement signals a significant shift in OpenAI's approach. Developers can now more easily build, customize, and deploy AI agents across different environments, potentially accelerating idea in the rapidly evolving AI landscape.
With AgentKit and the Apps SDK, OpenAI is providing the infrastructure for creators to push the boundaries of what's possible with conversational and autonomous AI technologies. The move suggests the company is serious about empowering developers to create more sophisticated, context-aware AI applications.
Everything OpenAI announced at DevDay 2025: AgentKit, Apps SDK, ChatGPT, and more Related: OpenAI launches AgentKit to help developers build and ship AI agents OpenAI ramps up developer push with more powerful models in its API OpenAI’s DevDay 2025 reframed ChatGPT as an app platform and agent OS, debuting Apps inside ChatGPT, a preview Apps SDK, and AgentKit. Apps run directly in ChatGPT responses with interactive UIs, video, login, and actions via the Model Context Protocol (MCP). Launch partners include Canva, Zillow, Coursera, Figma, Spotify, Booking.com, and Expedia, with DoorDash, Instacart, Uber, and AllTrails “coming soon.” Live demos showcased end-to-end “talking to apps”: generating a poster in Canva, auto-building a pitch deck, and pulling Zillow listings with natural-language filters and maps, including full-screen renders inside ChatGPT. Other announcements in dev day included: AgentKit rolled out alongside Agent Builder (a visual “Canva for agents”), ChatKit (an embeddable chat UI), Evals for Agents (step-trace grading, datasets, automated prompt optimization, external-model evals), and a Connectors registry with admin controls.
OpenAI's latest developer tools signal a significant shift in AI interaction. AgentKit and the Apps SDK represent more than incremental updates - they're transforming ChatGPT from a conversational interface into a potential application platform.
The introduction of interactive apps within ChatGPT responses suggests a bold reimagining of how users might engage with AI. By enabling developers to create apps that run directly in the chat interface, OpenAI is neededly positioning ChatGPT as an operating system for intelligent agents.
Developers now have more strong tools to build sophisticated AI experiences. The Model Context Protocol (MCP) appears to be a key idea, allowing apps to integrate video, login functionality, and complex actions smoothly within ChatGPT.
While the full potential remains unclear, these announcements indicate OpenAI is serious about expanding beyond pure conversation. The company seems intent on making AI more interactive, functional, and developer-friendly.
Still, questions linger about how quickly developers will adopt these new tools and what kinds of applications might emerge. OpenAI is pushing the boundaries of AI interaction.
Further Reading
- OpenAI Unveils ChatGPT App Store: Integrations, Hardware and AI Future - WebProNews
- OpenAI for Developers in 2025 - OpenAI Developers Blog
- Developers can now submit apps to ChatGPT - OpenAI
- OpenAI DevDay 2025 - OpenAI
- OpenAI launches app submissions and rolls out store in the new year - The Decoder
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Common Questions Answered
What is AgentKit and how does it help developers build AI agents?
AgentKit is a new toolkit introduced by OpenAI to simplify the development of AI agents for developers. It provides tools and resources that make it easier to create intelligent agents that can interact more effectively within the ChatGPT ecosystem.
How does the new Apps SDK transform ChatGPT's functionality?
The Apps SDK allows developers to create interactive applications that run directly within ChatGPT responses, effectively transforming ChatGPT from a conversational AI into a full-fledged application platform. These apps can include features like interactive UIs, video, login capabilities, and actions via the Model Context Protocol (MCP).
What strategic shift is OpenAI making with its developer tools at DevDay 2025?
OpenAI is repositioning ChatGPT from a simple conversational interface to a comprehensive application platform and operating system for intelligent agents. By introducing AgentKit and the Apps SDK, the company is enabling developers to create more sophisticated and interactive AI-powered applications within the ChatGPT environment.