AI agents improve models across domains, but repeated training can regress

ParetoRSI-Gym tests automated data curation across five domains, finding held-out gains alongside sensitivity to agent software and stopping decisions.

Big Tech
Haojin Wang · Yangzhen Wu · Zeyi Chen · Jian Xie · Jiaying Ye · Lili Meng · +3 more

University of Illinois Urbana-Champaign · University of California, Berkeley · The Ohio State University · University of Washington · Google

Research Digest··3 min read
Illustration: AI agents improve models across domains, but repeated training can regress
Wang and colleagues introduce a benchmark in which AI agents repeatedly select training data, fine-tune language models and use evaluation feedback to guide another round.

The authors tested three agent systems on three language models with 3 billion to 7 billion parameters, spanning mathematics, code, finance, medicine and science.

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