Working at OpenAI may look good for your résumé. For your under-eyes? The company’s researchers are not so sure.

A tongue-in-cheek joke by Thibault Sottiaux, the engineering lead on OpenAI’s Codex, about the AI lab’s breakneck pace has sparked a mini before-and-after trend among colleagues — complete with changed hairstyles and a recommendation for eye patches.

“A few weeks at OpenAI feel like years at other companies in terms of how much gets done,” Sottiaux wrote in an X post on Thursday. “Crazy how much you can age in a few days.”

The post, which has been viewed more than 950,000 times as of Friday morning, followed several days of online…