OpenAI DevDay 2025: Sam Altman Keynote on Apps SDK, AgentKit, ChatKit & Codex (2025)

Imagine a world where coding isn't just for elite teams of programmers—where anyone with a spark of creativity can turn ideas into reality in mere minutes. That's the thrilling promise unfolding at OpenAI's DevDay, and it's sparking debates about the future of technology and jobs. But here's where it gets controversial: Is this democratization of software development a game-changer for innovation, or could it leave skilled coders behind? Stick around as we dive into the key announcements and demos that had the tech world buzzing, and see why this event might just redefine how we build the digital tools of tomorrow.

Kicking things off, Sam Altman took the stage to a roaring applause, sharing some eye-opening stats: ChatGPT now boasts 800 million weekly active users, up from 700 million just last month, with 4 million developers and a staggering 8 billion tokens processed every minute via the API. Over 22,000 people tuned in live on YouTube to catch the excitement. Altman emphasized that the goal is to make AI accessible and beneficial for everyone, hinting at a shift that's as empowering as it is disruptive.

One of the standout moments was Altman's introduction of the App SDK, a tool that lets users interact with apps directly through ChatGPT. Picture this: You could ask the chatbot to whip up a party playlist, and it pulls recommendations straight from Spotify. In a live demo with Canva, the SDK showed its potential by generating poster mock-ups for a dog-walking business in just a couple of minutes—complete with follow-up edits and even a pitch deck. For beginners, think of it as a bridge between everyday ideas and professional outputs, without needing deep coding knowledge.

Building on that, Altman unveiled ChatKit, which allows developers to seamlessly embed ChatGPT-powered chats into their own apps or websites. 'You get a simple, customizable interface that reflects your brand and workflows,' he explained, making it easier to personalize AI interactions. This could revolutionize user experiences, but it raises questions: How do we ensure these integrations prioritize privacy and avoid overwhelming users with AI everywhere?

Then came AgentKit, designed to help developers create AI agents—from prototype to full production. Altman expressed hope that it would benefit solo creators and big corporations alike. In a dazzling demo, OpenAI's Christina Huang built a functional AI agent in just eight minutes, complete with workflows, tools, and widgets, leaving 49 seconds on the clock. Attendees could even test it live. For those new to this, AI agents are like smart assistants that automate tasks, such as handling customer inquiries, and AgentKit simplifies their creation, potentially speeding up business operations.

Codex, OpenAI's software engineering agent, was another major reveal, now generally available after an earlier research preview. The audience erupted in applause as Altman noted how exciting it is to see what people are building. Demos showcased Codex's power: Romain Huet, head of developer experience, used voice commands to create software on the fly, like displaying attendee names in a rolling credits style within a React app. He even reprogrammed apps in real-time, responding to user needs without writing a single line of code. Imagine controlling a camera or an Xbox with your voice—Codex made it happen, turning sketches and devices into functional software effortlessly.

Altman also announced GTP-5 Pro and a smaller voice model, gpt-realtime-mini, both now in the API. He predicted voice will become a primary way people engage with AI, a bold claim that could reshape interfaces. And this is the part most people miss: These tools aren't just for tech pros; Altman highlighted inspiring stories, like an 89-year-old Japanese man who built 11 iPhone apps for seniors using ChatGPT, or medical students at ASU who created an app simulating patient discussions. 'Anyone with an idea can now build apps for themselves,' he said, ushering in a new era of software creation.

Sora 2, the video generation model, got a big update too—it's now available in the API for developers to test. Altman demonstrated its capabilities with videos of dogs playing on a beach and a kayaker navigating a river, emphasizing how it syncs visuals with rich soundscapes, not just speech. This comes hot on the heels of the TikTok-style Sora app's release, which has drawn attention for generating videos of copyrighted content. 'People love Sora 2—it's topped the App Store since launch,' Altman beamed, praising the creativity. But here's where it gets controversial: While this opens doors for artists and creators, it sparks heated debates about intellectual property and ethics. Could AI-generated content flood markets and undermine original works?

The event wasn't without its market ripples. HubSpot's shares surged nearly 7% after Altman mentioned how the company used AgentKit to enhance its Breeze AI tool for better customer responses. Coursera stock jumped over 6% when ChatGPT was shown integrating deeply, accessing videos and explaining topics like machine learning data prep. Founded in 2012 by AI pioneers Daphne Koller and Andrew Ng, Coursera exemplifies how AI can democratize education.

Wrapping up the keynote, Altman reiterated the vision of AI transforming coding from a team sport to an individual pursuit. 'Software that once took months can now be built in minutes with a good idea,' he declared, even as the crowd began applauding prematurely. He urged attendees to explore new builds, echoing the event's theme.

Beyond the announcements, the schedule was packed: Sessions on context engineering, agent orchestration, evals, and more, culminating in a non-livestreamed chat between Altman and Jony Ive about design and responsible building. Ive, the ex-Apple chief behind iconic products like the iPhone, joined OpenAI after a $6.4 billion acquisition of his startup, hinting at screen-less hardware in development.

OpenAI also inked a massive deal with AMD, pledging 6 gigawatts of Instinct GPUs over years, with warrants for up to 160 million AMD shares. 'We need all the computing power we can get,' said President Greg Brockman, driving AMD's stock up over 30%.

As doors opened to a crisp San Francisco morning, attendees lined up for DevDay, hyped by Altman's teaser post on X. From infrastructure deals to voice-controlled coding, this event showcased AI's potential to empower creators everywhere. But is this rapid evolution a boon for society, or a double-edged sword that could disrupt industries? What do you think—will AI make coding obsolete for professionals, or level the playing field? Share your thoughts in the comments; I'd love to hear if you agree, disagree, or have your own take on these game-changing tools!

OpenAI DevDay 2025: Sam Altman Keynote on Apps SDK, AgentKit, ChatKit & Codex (2025)

References

Top Articles
Latest Posts
Recommended Articles
Article information

Author: Velia Krajcik

Last Updated:

Views: 5921

Rating: 4.3 / 5 (74 voted)

Reviews: 89% of readers found this page helpful

Author information

Name: Velia Krajcik

Birthday: 1996-07-27

Address: 520 Balistreri Mount, South Armand, OR 60528

Phone: +466880739437

Job: Future Retail Associate

Hobby: Polo, Scouting, Worldbuilding, Cosplaying, Photography, Rowing, Nordic skating

Introduction: My name is Velia Krajcik, I am a handsome, clean, lucky, gleaming, magnificent, proud, glorious person who loves writing and wants to share my knowledge and understanding with you.