Viswajit Krothapalli

Patterns of Errors and Hallucinations Among ChatGPT, Perplexity, Qwen, and Copilot in Answering ACR DXIT Radiology Questions

Abstract Large language models (LLMs) are increasingly used in radiology workflows. In this study, we aimed to compare the performance and characteristics of errors made by ChatGPT, Perplexity, Qwen, and Microsoft Copilot using standardized radiology questions. This cross-platfor...