Princeton professor points out Ember and GLM aren't on the cost-performance Pareto frontier

random_walker · x · 2026-09-28

Arvind Narayanan flags a methodological flaw in popular performance-vs-price Pareto frontier charts: even granting heavy benchmark gaming, Ember and GLM are not on the frontier, because a router randomizing between Sol and Gemini can hit any point on the chord connecting them. Adding more models should only increase the area under the curve, never shrink the frontier.

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