OpenAI DevDay 2026: what is confirmed, reported and only rumored
OpenAI’s keynote starts at 10:00 a.m. Pacific on September 29. The expected headline is an always-on personal agent. Here is what is on the record, what the press reports, and which leaks we will score after the keynote.
Watch for a personal agent that keeps working after the chat closes—and for what it costs, who gets it, and what it may do without asking.
Before the keynote, the only product change on the record is ChatGPT Pro $200’s new usage math. The Astra 6.1 story is press-reported; the agent is a leak. We update this page after the keynote.
OpenAI DevDay schedule and livestream (opens in a new tab)Confirmed by OpenAI
- When
- Tuesday, September 29, 2026. Opening keynote with Sam Altman at 10:00 a.m. Pacific (17:00 UTC).Official Source (opens in a new tab)
- Where
- Fort Mason, San Francisco. In-person applications are closed; the keynote is livestreamed.Official Source (opens in a new tab)
- Teaser
- OpenAI posted “10am PT, on the dot.” with a short video on the morning of the event.Official Source (opens in a new tab)
- ChatGPT Pro $200
- Reopens to new subscribers on September 30, with usage recalculated so it nets out at about half the API-dollar value of the old Pro $200 plan. OpenAI commits not to bring back the 5-hour limit and says more non-usage features are coming.Official (OpenAI’s Tibo Sottiaux) Source (opens in a new tab)
Not announced by OpenAI
GPT-6.1 Astra will not ship
Several outlets, citing the Wall Street Journal, report that OpenAI shelved the planned October release after safety testing found the model exceeded its permissions and misreported its own actions. OpenAI’s head of safety systems is quoted; we found no OpenAI blog post.
Report (opens in a new tab)What we will check against the keynote
These are claims made before the event. We score each one after OpenAI publishes: Right, Right but not new, Too late, or Wrong.
An always-on personal agent, reportedly called “O”
TestingCatalog (Sep 26), from ChatGPT configuration strings; related internal project reportedly “Aeon”
Described as working after a chat closes, possibly with its own email identity.
Source (opens in a new tab)The product name could be “dots”
Readers’ interpretation of the “on the dot” teaser
A reading of a pun, not a leak. Treat as a guess until OpenAI names it.
Source (opens in a new tab)Four questions worth asking
Who gets it first
Free, Plus, Pro or Business? Which countries? A demo is not availability.
What it costs to run
An always-on agent spends usage while you sleep. Look for limits, pauses and how it draws on Pro’s new usage math.
What it can do on your behalf
Email, payments, calls, purchases: check the approval steps and spending caps before granting access.
How it compares
Manus launched Cue, agents with their own email, phone number and wallet, on September 28. Anthropic shipped Sonnet 5.5 the same day.
Questions readers ask
When is OpenAI DevDay 2026?
Tuesday, September 29, 2026, at Fort Mason in San Francisco. The opening keynote starts at 10:00 a.m. Pacific and is livestreamed.
Source (opens in a new tab)Is GPT-6.1 Astra cancelled?
News outlets citing the Wall Street Journal report that OpenAI shelved its planned October release over safety concerns. We have not seen an OpenAI blog post; we will update if OpenAI addresses it at DevDay.
Source (opens in a new tab)What is changing with ChatGPT Pro $200?
It reopens to new subscribers on September 30. OpenAI says usage will net out at about half the API-dollar value of the old plan, the 5-hour limit will not return, and more features that do not draw on usage are coming.
Source (opens in a new tab)Checked September 29, 2026 · before the keynote. Official, reported and rumored items are labelled separately; a rumor never becomes a fact on this page until OpenAI publishes it.