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Cong Guo

2 papers indexed

arxivcs.CLcs.CEcs.DBcs.LG2026-07-22

TriAgent: Divergence-Aware Multi-Agent Committees for Cost-Efficient Financial Sentiment Analysis

Isabel Xu, Cynthia Xu, Rachel Ren, Cong Guo, Jiacheng Ding

Production LLM-based financial sentiment analysis faces a structural cost trap: most queries are trivially classifiable, yet expensive cloud reasoners process them all, and the bill scales linearly with user count. We present TriAgent, a multi-agent committee stratified by contex…

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arxivcs.LGcs.AIcs.DB2026-07-20

FIFA World Cup 2026 as a Contamination-Free Benchmark for LLM Forecasting Agents: Four Models, a Bookmaker, and 104 Matches

Jiacheng Ding, Cong Guo, Jason Xu

We introduce WC2026-Agents, a benchmark and dataset for evaluating large language models (LLMs) as autonomous forecasting agents on real, future events. For every one of the 104 matches of the 2026 FIFA World Cup, four frontier models -- Claude Opus 4.8, ChatGPT (GPT-5.5, high re…

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