Evals and Regression Testing·Lesson 19 of 31·12 min
Detecting Prompt Drift and Model Changes
This lesson is for enrolled learners
The concept Drift is a change in behavior or inputs that you did not explicitly ship. In LLM systems it shows up in several forms: the vendor changes a model behind an alias; your users start asking new things; a document corpus goes stale or grows a new format; a tool’s payload shape changes; or your own prompt ‘tweaks’ accumulate……
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