Fine-tuned GPT-4o-mini detects AI versus human text at 95.5% F1 on the DeFactify test set, but identifying the specific generator LLM reaches only 47% F1 with BERT.
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AI Generated Text Detection Using Instruction Fine-tuned Large Language and Transformer-Based Models
Fine-tuned GPT-4o-mini detects AI versus human text at 95.5% F1 on the DeFactify test set, but identifying the specific generator LLM reaches only 47% F1 with BERT.