TLDR Founders · TOOLS & RESOURCES

OPENAI DEVDAY 2026

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Summary from the TLDR Founders newsletter

OpenAI introduced on DevDay new models, tools, and agents to help developers build faster, take on more ambitious projects, and bring their products to more people. The company revealed new agents that can take on ongoing responsibilities and new ways for people and AI to work together. It also expanded its commitment to an open ecosystem by opening up ChatGPT as a shared surface where humans and agents can collaborate and where developers can directly launch new native experiences. There is now a new Pro 500 plan that offers 25 times the ChatGPT Plus allowance and includes access to Ultrafast.