rerankWithScorer()

function rerankWithScorer({
  results: QueryResult[],
  query: string,
  scorer: RelevanceScoreProvider,
  options?: RerankerFunctionOptions,
}): Promise<RerankResult[]>;

import { openai } from "@ai-sdk/openai";
import { rerankWithScorer as rerank, CohereRelevanceScorer } from "@mastra/rag";
 
const scorer = new CohereRelevanceScorer('rerank-v3.5');
 
const rerankedResults = await rerank({
  results: vectorSearchResults,
  query: "How do I deploy to production?",
  scorer,
  options: {
    weights: {
      semantic: 0.5,
      vector: 0.3,
      position: 0.2,
    },
    topK: 3,
  },
});