OpenAI's rumored 'o' agent points to a long-running Grok Bot-like product
An X user says the product, powered by an Astra variant called 'aeon,' is planned for OpenAI's September 29th DevDay.
By Ryan Merket · Published
Primary source: X
Why it matters
If the report is accurate, OpenAI is preparing to package long-running agent work as a product alongside models and developer tools. The post offers no details on access, capabilities, or how the rumored agent relates to OpenAI's existing products.

Leo (@synthwavedd) claims OpenAI plans to unveil an agent called "o" at DevDay on September 29th, describing it as a competitor to Grok Bot and Hermes Agent built for long-running tasks. The claim is an unconfirmed product rumor, not an OpenAI announcement. OpenAI's DevDay page confirms the event date and San Francisco venue.
Leo says the agent would run on an Astra variant called "aeon" and has been in development for months. A second post says an acquisition was made for the product, but does not identify the deal. OpenAI announced its agreement to acquire developer-agent company Ona in June, describing its work on cloud infrastructure for long-running agents; Leo's post does not establish that Ona is the acquisition he means.