Author

Jiaqi Liu

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#machine learning Preprint Oct 2026

Response-Informed Value Estimation for Cost-Aware Multi-Turn LLM Routing

RIVET jointly trains two value estimators over a shared state-model representation: a deployable Routing Value Estimator that scores candidate models from pre-call information, and a training-only Response-Informed Value Estimator that additionally observes the realized response.

Hao-Tian Yan, Jia-Qi Liu, Bing-Yi Jing et al. · 0 citations

Conference Open access Jul 2026

AgentGym2: Benchmarking Large Language Model Agents in De-Idealized Real-World Environments

AgentGym2 is presented, a new evaluation framework with task instances grounded in real-world end-to-end working demands that measures agents'ability to execute end-to-end procedures, discover tools via exploration, compose tools for unseen tasks, and remain robust to noisy and underspecified information.

Zhiheng Xi, Dingwen Yang, Jiaqi Liu et al. · Annual Meeting of the Associ... · 1 citation