Chengwu Tech Stack

Sep 1, 2026 · Artificial Intelligence

Agent vs Prompt+LLM: Where Should Uncertainty Live in Production LLM Systems?

This article analyzes when to use autonomous agents versus prompt-engineered LLM pipelines in production systems, arguing that the choice depends on uncertainty type, failure cost, reversibility, and audit requirements, and presents a layered architecture where code handles deterministic boundaries while LLMs handle semantic judgments.