Jacob Coxon

Chercheur en pré-entraînement qui a passé trois ans chez OpenAI puis Anthropic et a démissionné publiquement le 9 septembre 2026, affirmant qu’aucune des deux entreprises n’agit de manière responsable et que les scénarios les plus agressifs pourraient échapper à tout contrôle d’ici fin 2027.

Fonctions

2023 – 2026Pretraining researcher, OpenAIThree years of pretraining research across OpenAI and Anthropic, by his own account; left OpenAI earlier in 2026.Source →
2026 – 9 sept. 2026Pretraining researcher, AnthropicResigned publicly, saying neither Anthropic nor OpenAI is acting responsibly.Source →

Au registre

9 sept. 2026 · Entretien · The Wall Street Journal
We're on track for a lot of the most aggressive of these scenarios where by the end of next year things could be out of control already.
Pretraining researcher, Anthropic à l’époque
The Journal's interview is paywalled; the sentence is reproduced identically by Futurism, Business Standard and Yahoo News.
Anthropic Researcher Quits Over ‘Out-of-Control’ AI Fears →
9 sept. 2026 · Publication · X
The people building AI earnestly believe that it could kill us all by the end of the decade. This is not a marketing stunt.
Pretraining researcher, Anthropic à l’époque
From the same thread, as quoted by NBC Los Angeles.
Anthropic researcher resigns with warning about the dangers of AI →
9 sept. 2026 · Publication · X
I resigned from Anthropic today. I spent the last three years doing pretraining research at both OpenAI and Anthropic. Neither company is acting responsibly. They are racing straight to self-improving superintelligence and gambling with our lives.
Pretraining researcher, Anthropic à l’époque
The first post of his resignation thread, as quoted by NBC Los Angeles; the thread is at x.com/hilbertspaess/status/2097476196791709843.
Anthropic researcher resigns with warning about the dangers of AI →