Equation 12 · Part 1 · The Safeguards Behind a Claude Refusal, and What They're Actually Trading Off
Symbol τ
What this part means
τ is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
τ is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol τ→Article meaning
The passage around this formula
…blocked. Under-refusal is the false negative rate: harmful requests wrongly allowed through. Because both are read off the same score against the same threshold, they move in opposite directions together — raising to let more borderline traffic through necessarily lets in more of the genuinely harmful traffic sitting just past that border, and lowering it to catch more harmful traffic necessarily catches more benign traffic that merely resembles it. This is a simplification of what Anthropic’s own…
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Sources cited in the article section
- [10] XSTest: A Test Suite for Identifying Exaggerated Safety Behaviours in Large Language Models ↗
- [12] System Card: Claude Opus 4.5 ↗
- [5] Many-shot Jailbreaking ↗
These citations provide research context; check each source for the exact claim it supports.