activity
20232026
most citedFine-Tuning Large Vision-Language Models as Decision-Making Agents via Reinforcement Learning

8 citations · 17 across the 10 of their papers we have counts for

collaborators

11 papers

cs.CL2026

One Frozen Simulator Is Not Enough: Simulator Collapse in Multi-Agent RL

Simon Yu, Nicholas Tomlin, Marwa Abdulhai +7

Multi-agent reinforcement learning for human-AI interaction typically relies on a single large language model to simulate user behavior. We show that this approach systematically f…

cs.AI2025

Self-Challenging Language Model Agents

Yifei Zhou, Sergey Levine, Jason Weston +2

Large language models are quickly becoming the foundation for intelligent agents that are capable of using tools. However, training such agents is challenging because it requires h…

cs.LG2025

SWEET-RL: Training Multi-Turn LLM Agents on Collaborative Reasoning Tasks

Yifei Zhou, Song Jiang, Yuandong Tian +4

Large language model (LLM) agents need to perform multi-turn interactions in real-world tasks. However, existing multi-turn RL algorithms for optimizing LLM agents fail to perform…

cs.LG2025

Digi-Q: Learning Q-Value Functions for Training Device-Control Agents

Hao Bai, Yifei Zhou, Li Erran Li +2

While a number of existing approaches for building foundation model agents rely on prompting or fine-tuning with human demonstrations, it is not sufficient in dynamic environments…

cs.LG2024

Proposer-Agent-Evaluator(PAE): Autonomous Skill Discovery For Foundation Model Internet Agents

Yifei Zhou, Qianlan Yang, Kaixiang Lin +5

The vision of a broadly capable and goal-directed agent, such as an Internet-browsing agent in the digital world and a household humanoid in the physical world, has rapidly advance…

cs.RO2024★ 2 cited

KALIE: Fine-Tuning Vision-Language Models for Open-World Manipulation without Robot Data

Grace Tang, Swetha Rajkumar, Yifei Zhou +3

Building generalist robotic systems involves effectively endowing robots with the capabilities to handle novel objects in an open-world setting. Inspired by the advances of large p…

cs.LG2024★ 2 cited

DigiRL: Training In-The-Wild Device-Control Agents with Autonomous Reinforcement Learning

Hao Bai, Yifei Zhou, Mert Cemri +4

Training corpuses for vision language models (VLMs) typically lack sufficient amounts of decision-centric data. This renders off-the-shelf VLMs sub-optimal for decision-making task…

cs.AI2024★ 8 cited

Fine-Tuning Large Vision-Language Models as Decision-Making Agents via Reinforcement Learning

Yuexiang Zhai, Hao Bai, Zipeng Lin +8

Large vision-language models (VLMs) fine-tuned on specialized visual instruction-following data have exhibited impressive language reasoning capabilities across various scenarios.…

cs.AI2024★ 3 cited

Autonomous Evaluation and Refinement of Digital Agents

Jiayi Pan, Yichi Zhang, Nicholas Tomlin +3

We show that domain-general automatic evaluators can significantly improve the performance of agents for web navigation and device control. We experiment with multiple evaluation m…

cs.LG2024★ 2 cited

ArCHer: Training Language Model Agents via Hierarchical Multi-Turn RL

Yifei Zhou, Andrea Zanette, Jiayi Pan +2

A broad use case of large language models (LLMs) is in goal-directed decision-making tasks (or "agent" tasks), where an LLM needs to not just generate completions for a given promp…

cs.CL2023

LMRL Gym: Benchmarks for Multi-Turn Reinforcement Learning with Language Models

Marwa Abdulhai, Isadora White, Charlie Snell +5

Large language models (LLMs) provide excellent text-generation capabilities, but standard prompting and generation methods generally do not lead to intentional or goal-directed age…