The keynote opens with Sam Altman celebrating platform growth metrics, including over 1.2 billion weekly active ChatGPT users and 2.5 million business subscribers. Addressing top community feature requests, he highlights multi-folder Codex support, Linux compatibility, and mobile access before launching into the flagship theme of DevDay 2026: autonomous agentic AI.
OpenAI introduces 'Dots,' personalized, always-on AI agents that understand individual context, maintain persistent memory, and autonomously perform complex tasks ranging from daily administrative duties to engineering workflows. Holly Li demonstrates how a Dot ('Dottie') integrates into Slack, Google Meet, and local development environments to manage product rollouts, analyze feedback, and trigger local builds via Codex.
To facilitate team-wide collaboration with agents, OpenAI announces 'ChatGPT Space,' a persistent workspace featuring interactive 'Living Pages' where humans and multiple Dots co-create documents, code, and presentations. On the model frontier, Sam Altman introduces GPT-6.1 Sol, which delivers near-top-tier intelligence at one-fifth the price of Astra with a 95% discount on cached inputs, alongside 'Ultrafast' mode—an inference engine producing up to 300 tokens per second.
Research lead Tejal Patwardhan shares data demonstrating how OpenAI uses internal AI research interns to accelerate model training, showing that autonomous success rates on multi-hour tasks rose from 10% in January to 35% in July. The keynote concludes with developer tool announcements—including Codex in the Cloud, the Agents API with computer-use support, Codex Security Cloud, 'Sign in with ChatGPT' for third-party token reuse, and the OpenAI Marketplace—accompanied by live developer demonstrations from Romain Huet.