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Achu Menon

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04:08
2026-08-13
lesswrong.com
ai-research

Measuring Eval Awareness: The Realism Win Rate is Fragile

A new study from the Supervised Program for Alignment Research (SPAR), led by Achu Menon and mentored by Santiago Aranguri of Goodfire, finds that the realism win rate, a metric used to measure evalua…

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Supervised Program for Alignment Research (SPAR) 1 Santiago Aranguri 1 Goodfire 1 Claude Sonnet 4 1 Claude Haiku 4.5 1 Sonnet 4.5 1 Opus 4.5 1
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ai research 1 ai safety 1 large language models 1