OpenAI
RAG system built using OpenAI’s RAG Assistant API. It is a black box RAG system, so we don’t know exactly what the embedding model or LLM is, though presumably they are the most recent version of OpenAI’s embedder and GPT-4. We tested OpenAI’s RAG Assistant API at two different times, on 11/22/23 when the API was first released and again more recently on 2/16/24. The score here is from our most recent testing. We found that the RAG Assistant performed very poorly when it was first released.
openai.com