Chain, Tree, and Graph of Thoughts: How Structured Reasoning Maps onto Agent Frameworks
Chain-of-Thought, Tree-of-Thoughts, and Graph-of-Thoughts are three structure-enhanced reasoning paradigms. This article compares their design, performance, and cost using only within-paper benchmark numbers, then maps each onto LangGraph, AutoGen, and Anthropic's workflow patterns. The honest takeaway: structured reasoning pays off only when a task decomposes cleanly, has a cheap verifier, and runs on a model that is not already a strong reasoner — otherwise a simple workflow usually wins.