OpenAI DevDay 2025

Sam Witteveen has covered the things that got released in recent OpenAI DevDay 2025. It’s a short video do check that out 👇

Highlights

• OpenAI has released AgentKit
  • AgentKit has 3 major blocks
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  • It uses Responses API under the hood
  • You can think of Agent Builder as a toned down version of n8n clone 😅
  • ChatKit helps to build chat apps. (Not sure if they’ll support other models providers though)
• Apps in ChatGPT - They’ve partner with apps like Canva, Booking, Coursera, etc to show the apps within the ChatGPT chat UI itself. For example, you can watch a course in Coursera and parallelly ask some questions regarding what you’re trying to learn.
• OpenAI Guardrails Python
• Codex is available in Slack
• API support for Sora 2