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AI IntelligenceAug 17, 2026AI Intelligence
Article

From Monolithic to Modular

Segment-level Automatic Prompt Optimization: Automatic Prompt Optimization (APO) often rewrites prompts monolithically, which can improve one behavior while degrading others. We present SAPO, a segment-level APO method that decomposes prompts into role, context, tasks, and output format, then applies targeted improvements based on top-5 and bottom-5 examples. The optimization loop uses one LLM with...

Frontier EditorialSource: arXiv
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Source Brief

From Monolithic to Modular: Segment-level Automatic Prompt Optimization: Automatic Prompt Optimization (APO) often rewrites prompts monolithically, which can improve one behavior while degrading others. We present SAPO, a segment-level APO method that decomposes prompts into role, context, tasks, and output format, then applies targeted improvements based on top-5 and bottom-5 examples. The optimization loop uses one LLM with...