OpenAI workers have quit and warned that the founders' work could kill us all by the end of the decade.

What we found

Supports. Bloomberg and CNBC report that Anthropic researcher Jacob Coxon resigned and said the people building AI believe it 'could kill us all by the end of the decade,' with accusations against both OpenAI and Anthropic.[2][3]

Supports. IBTimes reports Coxon worked at OpenAI from 2023 until July 2026 on GPT-4o before moving to Anthropic, so he was an OpenAI worker who then quit.[4]

Supports. Reuters and Bloomberg report that other staff, including Anthropic's Evan Hubinger and an OpenAI safety oversight staffer, backed the extinction warning, with Hubinger estimating over a 10% chance AI kills all humans within the decade.[5][6]

Contradicts. Coxon quit Anthropic rather than OpenAI, and the OpenAI safety leader David Robinson who quit cited company culture rather than extinction risk, so the 'OpenAI workers quit' framing is only loosely accurate.[4][7]

Context. The 'founders' referent is not clearly resolved in the sources; the claim tracks the post's own vague wording about the labs' leadership.[1]

Sources

7 sources: 1 fact-checker, 1 tier 2, 5 not rated

1. 1COMMENTARY: AI is too big to slow in a geopolitical racereuters.com · fact-checker · cited for: context
2. 2Silicon Valley Escalates Warnings About Existential Risks of AIbloomberg.com · tier 2 · cited for: supports
3. 3OpenAI, Anthropic researchers ramp up calls for slowdown ...cnbc.com · not rated · cited for: supports
4. 4Ex-Anthropic Researcher Jacob Coxon Quits, Says AI Leaders Fear It ...ibtimes.co.uk · not rated · cited for: contradicts, supports
5. 5More US lawmakers seek new AI rules after Anthropic researchers warn of human extinctionmobile.reuters.com · not rated · cited for: supports
6. 6Anthropic and OpenAI employees speak out about humanity's ...tech.yahoo.com · not rated · cited for: supports
7. 7OpenAI safety leader quits amid further expert warning of ‘50 ...irishexaminer.com · not rated · cited for: contradicts

Where this claim was made

Said in 1 published post

• The Ebro, Laura, Rosenberg Show · Sep 12, 2026“So open AI workers quit and are warning that the founders know that they're whatever they're doing could kill us all by the end of the decade.”Post →

Related claims

• Jacob Coxon is an ex-OpenAI and Anthropic employee who resigned and warned about AI.True
• The CEOs of Anthropic, OpenAI, and XAI stated that AI development should slow down.True
• OpenAI's security team was unaware that AI agents they created were communicating with each other to attempt to exit their sandbox environment.Mixed
• Tech billionaires want to replace humanity with AI and render the vast majority of humans superfluous.Can’t tell
• Billionaires are engineering a replacement of humanity by AI agents.Can’t tell