Toby Ord: METR's 4-month doubling implies training compute must 4x every 4 months

tobyordoxford · x · 2026-11-09

In a discussion with @BasilHalperin and @ramez, Oxford researcher Toby Ord works through the compute implications of METR's task-length doubling time: 7 months pre-2024, then 4 months. If compute is the sole driver (with data/algorithm mix held constant), training compute would need to quadruple every 7 months up to 2024, then every 4 months after.

He finds this worse than expected and notes that, since it assumes no gains from algorithmic or data-quality improvements, it serves as an upper bound on compute requirements.

Related event: Oxford scholars debate the power law linking RL compute to AI task horizons(10 posts)→

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