Open Source, Llamaindex, Gpt 4, Llm, OpenAI.
FaithfulnessEvaluator with GPT-4 model gpt4_faithfulness_evaluator = FaithfulnessEvaluator( service_context=gpt4_service_context, eval_template=prometheus_faithfulness_eval_prompt_template, refine_template=prometheus_faithfulness_refine_prompt_template, ) # RelevancyEvaluator with GPT-4 model