Open Source, Llamaindex, Gpt 4, Llm, OpenAI.
Correctness, FaithFulness, Relevancy Evaluators from llama_index import ServiceContext from llama_index.evaluation import ( CorrectnessEvaluator, FaithfulnessEvaluator, RelevancyEvaluator, ) from llama_index.callbacks import CallbackManager, TokenCountingHandler import tiktoken # Provide Prometheus