2026
Online Multi-LLM Selection via Contextual Bandits Under Unstructured Context Evolution
AAAI 2026technical
Large language models (LLMs) exhibit diverse response behaviors, costs, and strengths, making it challenging to select the most suitable LLM for a given user query. We study the problem of adaptive multi-LLM selection in an online setting, where the learner interacts with users through multi-step qu