Tracing Thought: Using Chain-of-Thought Reasoning to Identify the LLM Behind AI-Generated Text

Fuente: arXiv
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Main Authors: Agrahari, Shifali, Singh, Sanasam Ranbir
Format: Preprint
Published: 2025
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author Agrahari, Shifali
Singh, Sanasam Ranbir
author_facet Agrahari, Shifali
Singh, Sanasam Ranbir
contents In recent years, the detection of AI-generated text has become a critical area of research due to concerns about academic integrity, misinformation, and ethical AI deployment. This paper presents COT Fine-tuned, a novel framework for detecting AI-generated text and identifying the specific language model. responsible for generating the text. We propose a dual-task approach, where Task A involves classifying text as AI-generated or human-written, and Task B identifies the specific LLM behind the text. The key innovation of our method lies in the use of Chain-of-Thought reasoning, which enables the model to generate explanations for its predictions, enhancing transparency and interpretability. Our experiments demonstrate that COT Fine-tuned achieves high accuracy in both tasks, with strong performance in LLM identification and human-AI classification. We also show that the CoT reasoning process contributes significantly to the models effectiveness and interpretability.
format Preprint
id arxiv_https___arxiv_org_abs_2504_16913
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Tracing Thought: Using Chain-of-Thought Reasoning to Identify the LLM Behind AI-Generated Text
Agrahari, Shifali
Singh, Sanasam Ranbir
Computation and Language
Artificial Intelligence
In recent years, the detection of AI-generated text has become a critical area of research due to concerns about academic integrity, misinformation, and ethical AI deployment. This paper presents COT Fine-tuned, a novel framework for detecting AI-generated text and identifying the specific language model. responsible for generating the text. We propose a dual-task approach, where Task A involves classifying text as AI-generated or human-written, and Task B identifies the specific LLM behind the text. The key innovation of our method lies in the use of Chain-of-Thought reasoning, which enables the model to generate explanations for its predictions, enhancing transparency and interpretability. Our experiments demonstrate that COT Fine-tuned achieves high accuracy in both tasks, with strong performance in LLM identification and human-AI classification. We also show that the CoT reasoning process contributes significantly to the models effectiveness and interpretability.
title Tracing Thought: Using Chain-of-Thought Reasoning to Identify the LLM Behind AI-Generated Text
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2504.16913