Qwen3 Reranker
A specialised reranker model can boost search quality. We are using the Qwen3 Reranker as default in 26.02 release.
4B Model
Out of the 3 sizes, 0.6B, 4B and 8B we are using the 4B as default.
4B is half the size of 8B but performs only sightly worse than 8B in some cases and is better than 8B in other cases.