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OpenAI is holding its DevDay 2025 event today, Oct. 6, and the company has already teased that it has a host of product launches under its sleeve. While it's geared toward developers, the company also typically announces updates to its consumer products, including ChatGPT.
This event follows closely on the heels of OpenAI's major product announcements last week, including its highly anticipated Sora 2 model and accompanying new iOS app, as well as a new agentic Instant Checkout e-commerce feature. Since OpenAI didn't hold that news for today's event, it probably means today's announcements will be even bigger.
For information on how to watch, what to expect, and live updates of the event as it unfolds, you can follow the live blog below, updated throughout the day from the venue.
Live updates (refresh for changes)
That's all for now
By Sabrina Ortiz, Senior Editor / Oct. 6 at 2:05 p.m ET
And that's a wrap folks -- Altman has concluded the event. I will be attending different sessions throughout the day, including a chat with Jony Ive and Atman, so stay tuned for even more updates.
Sora 2 and GPT-5 Pro in API
By Sabrina Ortiz, Senior Editor / Oct. 6 at 2:02 p.m ET
Sam Altman took the stage again for model updates. GPT-5 Pro is now in the API for developers, which Altman said is good for high accuracy and depth of reasoning. He also announced the launch of gpt-realtime-mini in the API, after sharing that AI is going to become one of the main ways people interact with AI.
Sora 2, just unveiled to the public last week, was also launched in the API. Altman showed off how realistic the video results are through video generations of different prompts. Through the API, developers can create the same high-quality video within their products.
What Codex can do now
By Sabrina Ortiz, Senior Editor / Oct. 6 at 1:57 p.m ET
The demo for the Codex experience was held by Romain Huet, Head of Developer Experience, OpenAI. Huet used Codex to control a camera's movement and then wire the camera to an Xbox 360 controller. Within a couple of minutes and Codex's assistance, he was able to do so successfully, panning the camera around the room using the controller.
Simultaneously, he built a voice assistant that could help control the lights. The assistant was able to hold a verbal conversation with Huet and then shine lights on the crowd. It was a pretty fascinating demo, with audience members pulling out their phones to record the experience. Then Codex helped build a credits overlay, the cast being all DevDay attendees, as well as starting a countdown and taking a photo of the crowd.
Codex available for all
By Sabrina Ortiz, Senior Editor / Oct. 6 at 1:47 p.m. ET
Altman came back out to talk about building software. He noted that usage of OpenAI's coding agent, Codex, has increased 10x since early August, fueled by many updates, including its availability across more platforms and an update to the underlying model. Starting today, it's out of research preview and generally available.
Building agents with AgentKit
By Sabrina Ortiz, Senior Editor / Oct. 6 at 1:40 p.m. ET
Next up, we moved onto Building agents. OpenAI launched AgentKit, which has "everything you need to build, deploy and optimize agentic workflows," according to Altman. It builds on top of the Responses API and has new features to evaluate the performance of agents. The Connectors registry continues to connect users to data.
AgentKit is available to everyone starting today.
For the live demo, Christina Huang from platform experience at OpenAI, created an agent that converted the DevDay schedule into an actionable experience. She gave herself eight minutes to create and ship the agent, with a live clock going. To start, she used the Agent Builder within the OpenAI platform. After a couple of steps, including clarifying the type of agent she wanted, adding an if/else command, and more specific criteria on what she wanted the agent to do, she was done creating the Session agent -- with five minutes left on the clock. Then Huang moved on to creating the DevDay Agent, which took less than a minute.
Lastly, she added guardrails and a PII agent to enforce them. The entire workflow was done with 3:52 left on the clock. Then she tested the workflow, where she could see the agent's individual steps and workflow. She then published with 2:37 left. Using the workflow ID, she added the agents to the site, which took some coding tweaks. Once it was added to the site, she was able to try the agent out, and it worked. It was deployed and ready to use with 49 seconds to spare.
Huang noted that if she wanted to, she could tweak the agents further within the agent builder. The agent is live on the DevDay site.
Demos of Apps SDK
By Sabrina Ortiz, Senior Editor / Oct. 6 at 1:30 p.m. ET
Alexi Christakis, software engineer at OpenAI, led a live demo showcasing an app in action within the ChatGPT interface. In this example, he opened the Coursera app, which populated a video from the learning platform right within the chat. From there, a user can ask follow-up questions in a process OpenAI called "talking to apps."
In this case, Christakis talked to ChatGPT regarding the video's contents. In another example, he asked Canva to help create a poster -- within the interface, Canva was able to output four poster examples in line. They were accompanied by an explanation of what ChatGPT did. The App SDK also gives access to full-screen within ChatGPT.
To push the limits even further, Christakis asked ChatGPT to create a pitch deck from the poster, which got "ooo's" and "ah's" from the audience. As that was happening, he moved on to another prompt, asking ChatGPT what city he should bring the pretend project to, where he called on Zillow to help find homes in the area. Then the Zillow experience became available within ChatGPT.
To filter the Zillow results down, Alexi just had to type in a natural language prompt, showing how users could narrow down results using text as opposed to having to mess with filters on the Zillow website. By then, the slide deck was finished and looked very polished. Christakis was able to view it in full-screen. From here, users could then tweak the slides further through other prompts and open them in Canva.
The App SDK is available in preview starting today for developers. Later this year, developers will be able to submit apps for review to be listed.
Apps inside ChatGPT
By Sabrina Ortiz, Senior Editor / Oct. 6 at 1:15 p.m. ET
Sam Altman opened up DevDay with a breakdown of the coming announcements, which fall into four categories: apps inside ChatGPT, Building agents, writing code, and API updates.
We're starting with apps inside ChatGPT. OpenAI is making it easier for developers to build in ChatGPT by launching the Apps SDK. This gives developers access to the full stack, allowing them to build actual apps as opposed to previous methods such as GPTs, plus it uses Anthropic's Model Context Protocol (MCP).
There is excitement from developers in the room over the opportunity to monetize.
Keynote to start shortly
By Sabrina Ortiz, Senior Editor / Oct. 6 at 12:58 p.m. ET
We are live from the keynote room. The event will kick off in a few minutes.
Sabrina Ortiz/ZDNET
Doors are open
By Sabrina Ortiz, Senior Editor / Oct. 6 at 12:50 p.m. ET
We are live at the event and ready to cover all of the latest updates.
Sabrina Ortiz/ZDNET
What to expect from OpenAI DevDay
Since the event is geared towards developers, there will likely be a lot of news specifically targeted at them, such as updates on how to build. Sam Altman posted on X that the company has "got some new stuff to help you build with AI." This lines up with reports saying that OpenAI will be launching an Agent Builder.
Additionally, as mentioned above, we also expect some consumer news, following both past-year trends and the magnitude of this event. The schedule includes a chat with Jony Ive, so it is very possible we get an update to the highly anticipated AI wearable OpenAI has been working on.
This is the company's biggest DevDay ever, with media invited for the first time and over 1,500 attendees. The event itself is taking place at Fort Mason in San Francisco.
Event day schedule
The day is going to kick off with a livestreamed keynote with Sam Altman at 10 a.m. PT. Then there will be chats with Greg Brockman, president of OpenAI; Brad Lightcap, OpenAI's chief operating officer; and Jony Ive, a former Apple designer working on OpenAI's hardware product.
How to watch OpenAI DevDay 2025
The main keynote with Sam Altman begins Monday, Oct. 6, at 10:00 a.m. PT, 1:00 p.m. ET. The livestream will be available on YouTube if you want to follow along in real time. ZDNET's Sabrina Ortiz is at the event and will be covering all the updates here on this blog live.