ReAct: Synergizing Reasoning and Acting in Language Models
Source
Shunyu Yao et al.
Author
Shunyu Yao et al.
Published
Terms in this piece · Glossary
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
hallucination — When a model states something false with full confidence — inventing facts, citations, or APIs that don't exist.
Why it matters
This is the loop nearly every AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → framework implements: think, act, observe, repeat. Interleaving reasoning with tool calls cuts hallucinationWhen a model states something false with full confidence — inventing facts, citations, or APIs that don't exist.Full definition → because the model checks itself against an external source mid-task, and it leaves a trace you can actually debug.
