Apps SDK and Agent Builder Usher in Next-Gen ChatGPT AI Apps

Introduction: A New Era for AI Development

OpenAI’s annual DevDay 2025 event has set a new pace for innovation in artificial intelligence. With record attendance and developer excitement, OpenAI unveiled the Apps SDK and AgentKit—a pair of groundbreaking toolkits that let anyone build, integrate, and launch intelligent AI apps and agents directly inside ChatGPT. This marks a bold leap from conversational AI to a dynamic ecosystem of next-gen, chat-driven applications.techcrunch+2

Apps SDK: Embed Your App Directly in ChatGPT

What is the Apps SDK?

With the newly announced Apps SDK, developers can now create interactive, full-stack applications that appear as native apps directly inside ChatGPT. Partner demos at DevDay included apps from Spotify, Canva, Figma, Coursera, and Zillow—offering instant access to third-party data and actions without leaving the chat interface.techcrunch+2

Key features of the Apps SDK:

• Plug-and-play: Apps are triggered within ChatGPT via prompt or direct selection.

• Rich interactivity: Users can engage with carousels, maps, custom UIs, and multi-step workflows all within the chat window.

• Developer reach: OpenAI’s 800 million+ weekly ChatGPT users offer unmatched distribution for new app launches.openai+1

For the first time, third-party developers and brands can deliver truly adaptive, conversational app experiences—unlocking new monetization and customer engagement potential.constellationr+1

AgentKit and Agent Builder: Build Powerful AI Agents in Minutes

What is AgentKit?

AgentKit is OpenAI’s new, integrated development suite for designing, deploying, and optimizing advanced AI agents. Gone are the days of juggling evaluation frameworks and custom UI builds: AgentKit offers everything in one place.openai+1

• Agent Builder: A visual canvas for chaining logic, actions, and reasoning steps—like Canva for building AI agents.

• ChatKit: Simple embeddable UI for adding ChatGPT-style chat to any website or product.

• Connector Registry: Secure, centralized management for connecting agents to internal databases, APIs, and tools.

AgentKit even supports robust automated testing, safety checks, datasets, and third-party model integration—helping ensure real-world readiness.

Real-World Impact and Use Cases

At DevDay, OpenAI live-built and launched an AI workflow to manage event sessions in only minutes, showcasing the speed and simplicity of AgentKit’s visual tools. Early pilot users report deploying enterprise agents for sales, support, deep research, automation, and more.zdnet+2

Conclusion: OpenAI Pushes AI from Platform to Ecosystem

DevDay 2025 signals a turning point: ChatGPT is no longer just a chatbot, but a launchpad for adaptive, intelligent applications and agentic workflows. With Apps SDK and AgentKit, OpenAI is empowering millions of developers and businesses to shape the next generation of AI-powered productivity, creativity, and collaboration.

From building and monetizing chat apps to deploying autonomous agents, a new era for AI innovation has officially begun—powered by OpenAI’s breakthrough platforms.siliconangle+4