OpenAI DevDay 2025: Opening Keynote with Sam Altman

About this video

• Video Title: OpenAI DevDay 2025: Opening Keynote with Sam Altman
• Channel: OpenAI
• Speakers: Sam Altman
• Duration: 00:52:39

Overview

Sam Altman's opening keynote at OpenAI DevDay 2025 highlights the significant growth and advancements in AI development and adoption over the past two years. He introduces new tools and features designed to empower developers, including the Apps SDK for building within ChatGPT, AgentKit for creating AI agents, updates to Codex for software development, and model advancements like GPT-5 Pro and Sora 2. The overarching theme is making AI more accessible and powerful for builders to create innovative applications and solutions.

Key takeaways

• Exponential Growth: OpenAI has seen a dramatic increase in developers using their platform and users engaging with ChatGPT, processing billions of tokens per minute on their API.
• Empowering Builders: The event focuses on providing developers with tools to build faster and more efficiently, including new SDKs and platforms.
• Apps within ChatGPT: Introduction of the Apps SDK, allowing developers to build interactive, adaptive, and personalized apps directly inside ChatGPT, with potential for wide distribution.
• Simplified Agent Development: Launch of AgentKit, offering a suite of tools to streamline the process of building, deploying, and optimizing AI agents.
• Revolutionizing Software Development: Codex, an AI software engineering agent, is now generally available and enhanced with new features and a powerful new model (GPT-5-Codex) to accelerate coding and development workflows.
• Model Advancements: Updates to core models, including GPT-5 Pro for complex reasoning tasks and Sora 2 for advanced video generation with improved control and sound integration, are now available via API.