ZeroEntropy zerank-2 Reranker

zerank-2 is the flagship SOTA reranker by ZeroEntropy, trained with a novel Elo-style pipeline that consistently outperforms every other reranker. By boosting both semantic and lexical search, it delivers the most accurate answers across legal, medical, technical, financial, and code domains. ZeroEntropy delivers the fastest and most accurate reranker on the market. Our SOTA reranker models rescore and reorder results to surface the most relevant answers--reducing noise, improving accuracy, and cutting hallucinations in RAG and AI agents across verticals. Trained with a novel Elo-based pipeline, zerank-2 is an open-weight model, and consistently outperforms Cohere, Salesforce, and even LLM-as-a-reranker from Google and OpenAI--delivering higher accuracy at lower latency and cost. Highlights: - Unmatched reranking accuracy across verticals: legal, manufacturing, financial, medical, STEM, conversational, and code search. - Proven performance edge - outperforms Cohere rerank-3.5, Salesforce LlamaRank, and LLM rerankers in benchmarks. - Enterprise-ready - fast API integration, Hugging Face availability of weights, transparent pricing at half the market cost.