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OpenAI’s DevDay 2025 unveiled significant progress in AI development, featuring enhanced processing capabilities, a new Apps SDK for ChatGPT app development, and the introduction of AgentKit for creating and deploying AI agents. Leaked details and speculation reported by Reddit user /u/Glittering-Brief9649, highlight advancements to Codex powered by the highly anticipated GPT-5, and a first look at Sora 2, the next iteration of OpenAI’s video generation model. The announcements signal OpenAI’s ongoing commitment to democratizing AI by making it more accessible, practical, and efficient for developers to leverage. For more details and source materials, refer to the Reddit summary. [Reddit Post: https://old.reddit.com/r/artificial/comments/1nzt0pi/quick_summary_of_openai_devday_2025/]