Retrieval-Augmented Generation for Large Language Models in Radiology: Another Leap Forward in Board Examination Performance

Perplexity (Perplexity AI), which uses web-based retrieval-augmented generation (RAG) and prioritizes authoritative sources, with GPT-4 Turbo (OpenAI) outperformed default GPT-4 Turbo on a radiology board–style examination, illustrating the utility of RAG optimization to generate radiology answers.