Reranking model for improving retrieval quality in search and recommendation systems
Qwen3 Reranker 4B by alibaba is offered by 2 providers on this page. Its reference price is $0.12 per 1M tokens. The lowest paid channel is evroc at $0.058 / $0 per 1M, about 2.1× below the reference price.
The context window is 32,768 tokens at the reference host, but hosts report different limits, from 32,000 to 32,768, so the usable window depends on the provider you pick. The weights are open, so it can also be self-hosted or served through a gateway of your choice.
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.