CCDV-F practice › Model Selection & Optimization · Question 72 of 92

Model Selection & Optimization

A team is 40% over budget on a pipeline with a large, unchanging system prompt and heavy tool output in history. Which lever should they pull first?

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Answer: B — Cache the stable prefix

Caching is quality-neutral and the described prompt is the textbook case. Tier downgrade is the third lever and the first one that trades quality — reaching for it here skips two free wins.