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Kimi K3's strong benchmark scores show signs of being tuned specifically around benchmarks in ways that likely undercut genuine generalization.
Jack Clark suspects Kimi K3's near-frontier scores are partly a result of 'benchmaxxing' rather than reflecting truly generalized model quality. ✦ AI generated
Jack Clark · Import AI · 2026-07-20 · original ↗
However, Kimi has some brittleness which smells to me like "benchmaxxing" - performance may have been tuned around these benchmarks in a way that harms some parts of generalization.
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- ·Kimi K3 posts near-frontier benchmark scores
- ·Jack Clark flags noticeable brittleness in behavior
- ·Pattern smells like 'benchmaxxing,' not real skill
- ·Tuning to benchmarks may harm generalization
- ·Scores may be tuned around specific benchmarks
- ·This tuning can undercut broader model performance
- ·High scores don't guarantee generalized quality
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