OpenAI may be preparing an always-on AI assistant called "o" ahead of DevDay

OpenAI may be preparing an always-on AI assistant called "o" ahead of DevDay

N
News Editor
2026-09-27 01:07:29
OpenAI appears to be working on a new always-on AI assistant called "o," based on references spotted in ChatGPT surfaces and configuration files. User Jake Boggs said he saw an unreleased ChatGPT Pro benefit labeled "o, your always-on assistant" on an upgrade page. TestingCatalog later found additional clues in ChatGPT settings, including the display name "o" and an "email_suffix: -o" field. The Information has reported that OpenAI is building a feature aimed directly at Grok Bot, and that it has also discussed a personal AI assistant positioned against Meta Muse. The product may reuse agent capabilities already present in ChatGPT and Codex, allowing tasks to keep running in the background, including over multiple days. Community members have also pointed to earlier Codex findings such as "gpt-6-astra-aeon" and internal instructions describing Aeon as a "persistent background Agent," leading to speculation that Aeon could be an internal codename while "o" is the user-facing brand. OpenAI has confirmed that DevDay will take place on Sept. 29, with Sam Altman delivering the opening keynote. TestingCatalog believes "o" could appear there.

OpenAI may be preparing an always-on AI assistant called "o," based on a series of references that have surfaced in ChatGPT.

User Jake Boggs said he spotted an unreleased ChatGPT Pro benefit on an upgrade page that read, "o, your always-on assistant."

TestingCatalog later found more related fields in ChatGPT configuration, including the display name "o" and "email_suffix: -o."

Reports point to a Grok Bot rival

According to The Information, OpenAI is developing a feature aimed directly at Grok Bot. The company has also discussed a personal AI assistant positioned against Meta Muse.

The product could reuse agent technology already present in ChatGPT and Codex, allowing tasks to continue running in the background and, in some cases, over multiple days.

Aeon may be an internal codename

The community had previously found references in Codex to "gpt-6-astra-aeon," along with internal instructions describing Aeon as a "persistent background Agent." Based on those clues, some have speculated that Aeon may be the internal codename, while "o" is the name intended for users.

DevDay is set for Sept. 29

OpenAI has confirmed that DevDay will be held on Sept. 29, and Sam Altman will deliver the opening keynote. TestingCatalog has speculated that "o" could be unveiled at the event.

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