At OpenAI's DevDay 2025, AgentKit and models GPT-5 Pro and Sora 2 were unveiled, enabling interactive software experiences directly within ChatGPT. This shift towards "apps inside ChatGPT" fosters collaboration and commercialization in conversations. Enhanced self-hosting options and robust SDKs empower developers and streamline workflows, positioning OpenAI at the forefront of AI innovation. By Andrew Hoblitzell