Codex in Chat running for 12 hours is cited as a real agent example
ctjlewis · x · 2026-07-28
Another reply in the thread points to a practical example: people regularly post screenshots of Codex in Chat running for around 12 hours and then returning with a result.
The author argues that this is what an actual agent looks like: a system that can keep working for a long time and come back with something useful.
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