VoyageAI by MongoDB · Rerank model

rerank-3-lite

voyageai/rerank-3-lite

Rerank

Released Sep 30, 2026

rerank-3-lite is a reranker optimized for both latency and quality and a drop-in upgrade to rerank-2.5-lite, improving on it by 0.94% NDCG@10 on average across domain evaluations and by 1.86%...

Specifications

Input: one query and up to 1,000 documents
Output: relevance score per document, sorted; top_n to keep the best
Billing: per token across all query–document pairs

Use it

POST /api/v1/rerank · MCP rerank · full reference

curl https://omnirail.org/api/v1/rerank \
  -H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
  -d '{"model":"voyageai/rerank-3-lite","query":"best espresso machine","documents":["brass lever espresso machine","a bicycle","coffee grinder"],"top_n":2}'