We have added 3 new metrics that help you answer how factually correct is your generated answers, how relevant are the answers to the question and how relevant are the contexts returned form the retriever to the questions. This gives you a sense of the performance of both you generation and retrieval steps. We also have a "ragas_score" which is unified score to give a single metric about your pipelines.
checkout the quickstart to see how it works: https://github.com/explodinggradients/ragas/blob/main/examples/quickstart.ipynb