Reflexion: Language Agents with Verbal Reinforcement Learning

Source

  • Person key: ysymyth
  • Source kind: paper
  • Canonical URL: https://arxiv.org/abs/2303.11366
  • License: NOASSERTION
  • Public handling: public-metadata-summary-hash-link-only
  • Semantic hash: 28a7ce69da83e95cfa8f6da17af6faad59a17d1439eb3b22a40d76e7eff85ca8
  • First seen: 2026-05-16
  • Last changed: 2026-05-16
  • Identity guard: Do not confuse with yao-shunyu-alfred, the physics-to-AI researcher at alfredyao.github.io.

Classification

Summary

Large language models (LLMs) have been increasingly used to interact with external environments (e.g., games, compilers, APIs) as goal-driven agents. However, it remains challenging for these language agents to quickly and efficiently learn from trial-and-error as traditional reinforcement learning methods require extensive training samples and expensive model fine-tuning. We propose Reflexion, a novel framework to reinforce language agents not by updating weights, but instead through linguistic feedback. Concretel…

What This Teaches

How language models become agents through reasoning, acting, memory, tools, and interface design.

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