LLM Evaluators

import { openai } from "@ai-sdk/openai";import { createFaithfulnessEvaluator } from "@arizeai/phoenix-evals";const faithfulness = createFaithfulnessEvaluator({  model: openai("gpt-4o-mini"),});const result = await faithfulness.evaluate({  input: "What is the capital of France?",  context: "France is a country in Europe. Paris is its capital city.",  output: "The capital of France is Paris.",});

import { openai } from "@ai-sdk/openai";import {  createCorrectnessEvaluator,  createRefusalEvaluator,} from "@arizeai/phoenix-evals";const model = openai("gpt-4o-mini");const correctness = createCorrectnessEvaluator({ model });const refusal = createRefusalEvaluator({ model });