Alexander Skarsgård's viral mystery ad is real, but OpenAI denies making it

A viral ad that had the internet debating whether it was an AI-generated fake just took an even stranger turn.

Real actor, mystery sponsor

Actor Alexander Skarsgård has confirmed that the viral ad featuring him is completely authentic, according to Morning Brew. The video had circulated widely with many assuming it was an elaborate deepfake.

However, OpenAI wants nothing to do with it.

The clip initially leaked on Reddit. In response, OpenAI co-founder Greg Brockman called the leaked spot "fake news."

OpenAI representatives doubled down in a statement to Business Insider, insisting the ad was not legitimate and stating, "Not OpenAI, not connected to us at all."

Despite confirming that the footage was genuinely filmed and not a digital replica, Skarsgård declined to comment on who actually funded or produced the commercial.

Why it matters

We find this incident fascinating because it flips the usual AI anxiety on its head. Usually, people fear real companies using fake AI avatars. Here, a real Hollywood actor filmed a genuine commercial, yet the named brand has no idea who paid for it.

It looks like guerrilla marketing in the AI era is entering a weird, disorienting phase. When an authentic video can be weaponized or created without a brand's consent, attribution becomes a major brand safety headache.

For tech giants like OpenAI, this means vigilance goes beyond flagging deepfakes. Now they have to monitor high-budget, real-world productions pretending to speak on their behalf.