Scaling Laws & Compute · 2023

Are Emergent Abilities of LLMs a Mirage?

Rylan Schaeffer, Brando Miranda, Sanmi Koyejo

This paper argues apparent emergent abilities are largely an artifact of discontinuous or nonlinear evaluation metrics rather than fundamental jumps in model capability, showing that switching to smooth, continuous metrics turns the sharp jumps into gradual, predictable improvement.

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Schaeffer et al. show that metrics like exact-match or multiple-choice accuracy are harsh and nonlinear: a model's underlying per-token performance can improve smoothly while the reported score stays flat then spikes once the whole answer becomes correct. Re-scoring the same models and tasks with continuous or partial-credit metrics converts many reported emergent curves into steady, extrapolable trends. The work reframes much claimed emergence as a measurement choice, cautioning that metric selection, not new capability, can manufacture the appearance of a threshold.

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Record ID
P-103
Record created
2026-07-13
Last reviewed
2026-07-14
Record version
2

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