OpenAI hosted DevDay 2026, which the company described as its biggest event yet, featuring more than 20 major announcements spanning ChatGPT, Codex, models, and new ways of working with artificial intelligence. According to OpenAI, the event focused on fostering a new renaissance of creativity and discovery by giving people more time, freedom, and capabilities through AI. A core announcement of the day was the introduction of new agents designed to take on ongoing responsibilities, alongside novel methods for humans and AI to work together. Furthermore, OpenAI expanded its commitment to an open ecosystem by opening up ChatGPT as a shared collaborative surface where both humans and agents can interact. This update enables developers to directly launch new native experiences to a collective audience of 1.2 billion weekly users, marking a significant expansion of the platform's developer capabilities and reach.
DevDay 2026 Recap
OpenAI hosted DevDay 2026, marking its largest developer event yet with over 20 major announcements. The company introduced new agents for ongoing responsibilities and opened ChatGPT as a collaborative shared surface for humans and agents. Developers can now directly launch native experiences to a collective 1.2 billion weekly users.
Why it matters
Opening ChatGPT as a shared ecosystem surface allows developers to directly reach a massive audience of 1.2 billion weekly users. The introduction of autonomous agents capable of ongoing responsibilities shifts AI interaction from single-turn queries to collaborative workflows.
Topic dossiers OpenAI