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Pretrain Once, Route Anywhere: Towards a Foundation Model for LLM Routing

Lai, Guannan et al.
arXiv (All) · Papers
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Large language model (LLM) routing aims to assign each query to the most suitable model from a heterogeneous candidate pool, improving the quality--efficiency trade-off of LLM inference. Existing routers are typically learned through local fitting: a router is optimized for a particular query worklo
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