Model Card for Llama-3.1-8B-Instruct-NLRL-TicTacToe-Policy

Model Details

Model Description

• Developed by: NLRL Team
• Model type: Language Policy Model for TicTacToe
• Language(s): English
• License: MIT
• Finetuned from model: LLaMA-3.1-8B-Instruct

This model serves as a language policy in Natural Language Reinforcement Learning (NLRL) framework, specifically trained for the TicTacToe game. It generates actions through chain-of-thought reasoning and outputs move decisions.

Uses

Direct Use

This model can be used as a TicTacToe player that explains its strategic thinking through natural language before making moves. The model generates both reasoning chains and final move decisions.

Out-of-Scope Use

This model is specifically trained for TicTacToe and should not be used for other games or tasks.

Training Details

Training Data

Training data consists of state-action pairs collected through NLRL actor-critic learning process, with language-based Monte Carlo value estimates used for policy improvement.

Training Procedure

• Trained using FSDP (Fully Sharded Data Parallel) across 4 H100 GPUs
• Learning rate: 1e-5
• Training epochs per iteration: 2
• Batch size: 8
• Max sequence length: 1024

Evaluation

• Tested against deterministic (first-move) and random opponent strategies
• Achieves >90% win rate against both opponent types after convergence

Model Architecture

• Base model: LLaMA-3.1-8B-Instruct
• Input: Text description of TicTacToe board state
• Output: Chain-of-thought reasoning followed by move decision

Citation

@misc{nlrl,
      title={Natural Language Reinforcement Learning}, 
      author={Xidong Feng and Ziyu Wan and Haotian Fu and Bo Liu and Mengyue Yang and Girish A. Koushik and Zhiyuan Hu and Ying Wen and Jun Wang},
      year={2024},
      eprint={2411.14251},
      archivePrefix={arXiv},
      primaryClass={cs.LG},
      url={https://arxiv.org/abs/2411.14251}, 
}

Model Card Contact

benjaminliu.eecs@gmail.com