Jason CalacanisTim SweeneyJacob CoxonDavid SacksElon MuskAnthropicOpenAIAxiosEpic Games

Ex-Anthropic researcher Jacob Coxon's AI extinction warnings mocked by Elon Musk as 'seems like a setup'; Musk suggests posts were 'choreographed'

Jacob Coxon, a former Anthropic researcher, has raised alarms about AI risks, claiming it could lead to extinction by decade's end. Elon Musk dismissed these warnings as potentially orchestrated, suggesting they were part of a 'setup' amid a wave of skepticism from tech leaders.

The Washington Post+1 source10 September 2026 · 09:20 UTC
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Jacob Coxon, a former researcher at Anthropic, has issued stark warnings about the potential for artificial intelligence to cause human extinction by the end of the decade. In a series of posts on X, he criticized both OpenAI and Anthropic for their reckless pursuit of self-improving superintelligence, stating they are "gambling with our lives."1467

Coxon's alarming claims have gained significant traction, with his posts amassing over 120 million views. However, tech mogul Elon Musk has dismissed these warnings as potentially orchestrated, suggesting they might be part of a "setup." Musk remarked that the view count for Coxon's posts is unprecedented for a new account with little prior activity, raising suspicions about the authenticity of the engagement.23

Musk's skepticism was echoed by Tim Sweeney, CEO of Epic Games, who described the reactions to Coxon's posts as appearing "choreographed." Musk further speculated that this could be a "psy op" against AI, although he provided no evidence to support this claim.

Critics have also emerged from within the tech community, including David Sacks, former advisor to President Trump, who suggested that Anthropic's IPO should be paused until Coxon's claims are investigated. Sacks accused Anthropic of engaging in a "sophisticated regulatory capture strategy based on fear-mongering."

Coxon, who left Anthropic after just four months, previously worked at OpenAI, where he still holds equity. His rapid departure has raised questions about his motivations and the validity of his warnings.

Key Insight
“Coxon's posts, which claimed AI could 'kill us all by the end of the decade,' drew over 120 million views, prompting Musk to question their authenticity. David Sacks called for pausing Anthropic's IPO until the 'whistleblower' claims are investigated, while Anthropic's Evan Hubinger backed Coxon, saying he believes there's a >10% chance AI kills all humans.”
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What to make of alarming AI warnings from researchers tied to Anthropic
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What to make of alarming AI warnings from researchers tied to Anthropic
CuriousCats studied:
1
The Washington Post
“Scripture warns against false prophets. The Gospel of Matthew says that no one but God, “not even the angels of heaven,” knows the day or the hour of the end times. That’s worth remembering amid the flood of predictions about an artificial intelligence apocalypse.”
The Washington Post →
2
ForbesForbes
“The former Anthropic researcher Jacob Coxon in a series of X posts on Tuesday accusing both OpenAI and Anthropic of not acting responsibly by “racing straight to self-improving superintelligence and gambling with our lives.””
Forbes →
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