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Is it true that jacob Coxon, a former researcher at both OpenAI and Anthropic, points to a slide from Anthropic's IPO roadshow showing the company can already retrain its frontier Mythos model with a fraction of the compute originally needed - which he cites as evidence the company's algorithms are improving at an accelerating rate, and as a reason he says he left?

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No conclusive verdict. Jacob Coxon, a former researcher at both OpenAI and Anthropic, points to a slide from Anthropic's IPO roadshow showing the company can already retrain its frontier Mythos model with a fraction of the compute originally needed - which he cites as evidence the company's algorithms are improving at an

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Jacob Coxon, a former researcher at both OpenAI and Anthropic, points to a slide from Anthropic's IPO roadshow showing the company can already retrain its frontier Mythos model with a fraction of the compute originally needed - which he cites as evidence the company's algorithms are improving at an accelerating rate, and as a reason he says he left
Original source
The Decoder
Nov 14, 2026
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Dec 14, 2026 ET

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Reported

Jacob Coxon, a former researcher at both OpenAI and Anthropic, points to a slide from Anthropic's IPO roadshow showing the company can already retrain its frontier Mythos model with a fraction of the compute originally needed - which he cites as evidence the company's algorithms are improving at an

Source: The Decoder
Questions
Has Ex-OpenAI/Anthropic researcher Coxon cites Anthropic IPO roadshow slide on retraining Mythos at a fraction of the comput confirmed it?
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