Anthropic IPO deck chart sparks debate: Mythos could be retrained with a fraction of the compute

Witty_County5128 · reddit · 2026-11-15

A Reddit user cites a chart from Anthropic's IPO roadshow shared by Jacob Coxon showing how quickly pre-training efficiency has improved. Coxon argues Anthropic could already retrain Mythos using far less compute than it originally took. The post asks whether this is realistic and how much further training efficiency can go, with the chart attached — pointing at the implicit compute-depreciation effect of steady pre-training gains.

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