Correction: Epoch's GPT-6 compute numbers are a scenario analysis, not param estimates

scaling01 · x · 2026-10-16

The author apologizes and clarifies that EpochAI's widely circulated GPT-6 compute/params figures are a scenario analysis, not a parameter estimate. Earlier critiques: total training compute seems fine, but 5.35x more pre-training than RL compute looks silly, the pretraining duration median is high with a 90% interval of 42–135 days, and known facts like GPT-5.5 being trained on Stargate Abilene were overlooked.

Related event: EpochAI's GPT-6 Compute Scenario Analysis Sparks Debate(3 posts)→

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