OpenAI's DevDay 2026 takes place September 29 in San Francisco. Sam Altman's opening keynote starts at 10 a.m. Pacific / 1 p.m. Eastern and will stream free. The company has raised expectations with an official teaser video promising more than 20 launches.
OpenAI has not supplied an itemized list, launch prices or access dates. A launch can mean a new model, a feature added to an existing product, a developer tool or broader availability. The teaser does not establish that 20 standalone apps will appear or that everyone will be able to use every item on launch day.
When to watch and what is confirmed
The official schedule lists the keynote for 10 a.m. Pacific at Fort Mason. It will be livestreamed for free. Other technical sessions are due to be recorded and posted after the event. OpenAI promises a closer look at its tools, APIs and demos, without yet naming the complete announcement slate.
Some familiar names should not be mistaken for fresh launches. GPT-6 Sol and Luna were announced on September 22. OpenAI also already has an Agents API and cloud-agent tools. A stage demo may explain or extend an existing product, but the exact new part has to be identified before it can count as a new release.
What to check when the announcements land
For ChatGPT users, the first question is whether a feature is available on their plan or restricted to a preview. For developers, a model ID or API endpoint, documentation, pricing, rate limits and permission controls will matter more than the launch count. A polished demo can show what a product might do before access opens to customers.
OpenAI's teaser makes this a busy event to watch, not a verified list of 20 usable products. As individual announcements appear, their release stage and access terms will tell us which ones people can actually try on September 29.
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