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Codex code reveals OpenAI persistent agent Aeon

Someone dug through Codex's shipped code and found fields like aeonModelId and thread/startAeon, suggesting groundwork for configurable persistent agents, and said GPT-Astra helped build it.

Chris
@ChrisGPTArchived 2026.09.23Originally posted 2026.09.22
Codex code reveals OpenAI persistent agent Aeon
Chris @ChrisGPTOriginally posted 2026.09.22
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🚨OpenAI Persistent Agent - Aeon is almost here! I dug into Codex’s shipped code and found some more info about *Aeon*, OpenAI’s rumored Grok Bot competitor - • Model-selection fields: `aeonModelId` and `allowAeonDraftModelSelection` • Name and appearance fields: `aeonDraftName` and `aeonDraftAppearance` • Cloud-environment selection • A dedicated `thread/startAeon` operation • Aeon references tied directly to the “Agents” sidebar I’m assuming this is the groundwork for configurable agents inside Codex. The community has reported Aeon references in ChatGPT’s web and Android code, as well - including `aeonId` and `memberAeonIds`, alongside purported `aeon-core` instructions describing a ‘persistent agent’ coordinating cloud tasks and automations. GPT-Astra helped build it, and a launch could happen Thursday or DevDay! The code references are verified in the build I inspected, some paths remain disabled.

x.com/chrisgpt/status/2102252424232648898Archived 2026.09.23 10:27