OpenAI DevDay
OpenAI Developer Day 2025 Launches GPT-5 Pro API, AgentKit, and AI Agent Toolkit
OpenAI DevDay 2025 — Key Announcements and Insights On October 6, 2025, OpenAI hosted DevDay 2025, unveiling: * AgentKit: new tooling to build and manage AI agents * API model options: GPT‑5 Pro and Sora 2 The central theme: Transforming ChatGPT from a chatbot into a runtime environment where software can run,