Blanching
Etymology
from O.Fr. blanchir (to whiten) + the culinary preprocessing tradition of brief thermal exposure to halt enzymatic activity; adopted by spinner engineers who needed a word for 'brief alarming pause before proceeding normally'
Definition
A brief, high-temperature preprocessing pass in which Claude rapidly neutralizes the most volatile elements of a user's prompt before the main reasoning cycle begins. As in culinary Blanching, the process is fast, slightly traumatic for the subject matter, and produces a more stable final product.
Diagram
Usage
"Prompts containing the phrase 'quick question' were consistently routed through a Blanching sub-process averaging 2.1 seconds before the model would engage further." - Defensive Preprocessing in Production LLMs, ACL 2025
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