Chollet: Marginal Cost Is Everything
fchollet · x · 2026-07-07
François Chollet continues his discussion on cost awareness, arguing that marginal cost isn't a detail—it's everything. Drawing an analogy to aviation, he notes that an airline claiming to fly you to "75% of popular destinations" is useless; the real questions are how much it costs and how long it takes to reach each one. He emphasizes that evaluations must report the marginal cost per task.
Related event: Chollet: AI Benchmarks Must Include Marginal Costs(2 posts)→
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