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The Journal. · Friday, July 31, 2026

AI Activist Sam Kirchner Missing Amidst Open AI Campus Lockdown

A 911 dispatcher received a tip about a potentially violent attack at Open AI's headquarters, leading to a campus lockdown. The man identified as the potential threat is Sam Kirchner, founder of the anti-AI group Stop AI, who went missing on the same day. His disappearance has raised concerns within the activist community and among tech employees fearing for their lives.

personSam KirchnercompanyOpen AI

The tape

3 quotes
On a Friday morning in November of 2025, a 911 dispatcher in San Francisco gets a tip about a potentially violent attack.
The man the police are looking for is named Sam Kirchner. He's a founder of an anti-AI activist group called Stop AI.
Sam Kirchner went missing that day. The same day that Open AI went on lockdown.
Heard on The Journal. — “The Vanishing of an Anti-AI Activist, published Friday, July 31, 2026. Heardvine summarizes and quotes with attribution and timestamps, and links to the original everywhere.
Transcribed via Gemini audio transcription · $0.05
AI Activist Sam Kirchner Missing Amidst Open AI Campus Lockdown — Heardvine