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Main Authors: Alur, Rohan, Stadie, Bradly C., Kang, Daniel, Chen, Ryan, McManus, Matt, Rickert, Michael, Lee, Tyler, Federici, Michael, Zhu, Richard, Fogerty, Dennis, Williamson, Hayley, Lozinski, Nina, Linsky, Aaron, Sekhon, Jasjeet S.
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2511.07678
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author Alur, Rohan
Stadie, Bradly C.
Kang, Daniel
Chen, Ryan
McManus, Matt
Rickert, Michael
Lee, Tyler
Federici, Michael
Zhu, Richard
Fogerty, Dennis
Williamson, Hayley
Lozinski, Nina
Linsky, Aaron
Sekhon, Jasjeet S.
author_facet Alur, Rohan
Stadie, Bradly C.
Kang, Daniel
Chen, Ryan
McManus, Matt
Rickert, Michael
Lee, Tyler
Federici, Michael
Zhu, Richard
Fogerty, Dennis
Williamson, Hayley
Lozinski, Nina
Linsky, Aaron
Sekhon, Jasjeet S.
contents This technical report describes the AIA Forecaster, a Large Language Model (LLM)-based system for judgmental forecasting using unstructured data. The AIA Forecaster approach combines three core elements: agentic search over high-quality news sources, a supervisor agent that reconciles disparate forecasts for the same event, and a set of statistical calibration techniques to counter behavioral biases in large language models. On the ForecastBench benchmark (Karger et al., 2024), the AIA Forecaster achieves performance equal to human superforecasters, surpassing prior LLM baselines. In addition to reporting on ForecastBench, we also introduce a more challenging forecasting benchmark sourced from liquid prediction markets. While the AIA Forecaster underperforms market consensus on this benchmark, an ensemble combining AIA Forecaster with market consensus outperforms consensus alone, demonstrating that our forecaster provides additive information. Our work establishes a new state of the art in AI forecasting and provides practical, transferable recommendations for future research. To the best of our knowledge, this is the first work that verifiably achieves expert-level forecasting at scale.
format Preprint
id arxiv_https___arxiv_org_abs_2511_07678
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle AIA Forecaster: Technical Report
Alur, Rohan
Stadie, Bradly C.
Kang, Daniel
Chen, Ryan
McManus, Matt
Rickert, Michael
Lee, Tyler
Federici, Michael
Zhu, Richard
Fogerty, Dennis
Williamson, Hayley
Lozinski, Nina
Linsky, Aaron
Sekhon, Jasjeet S.
Artificial Intelligence
This technical report describes the AIA Forecaster, a Large Language Model (LLM)-based system for judgmental forecasting using unstructured data. The AIA Forecaster approach combines three core elements: agentic search over high-quality news sources, a supervisor agent that reconciles disparate forecasts for the same event, and a set of statistical calibration techniques to counter behavioral biases in large language models. On the ForecastBench benchmark (Karger et al., 2024), the AIA Forecaster achieves performance equal to human superforecasters, surpassing prior LLM baselines. In addition to reporting on ForecastBench, we also introduce a more challenging forecasting benchmark sourced from liquid prediction markets. While the AIA Forecaster underperforms market consensus on this benchmark, an ensemble combining AIA Forecaster with market consensus outperforms consensus alone, demonstrating that our forecaster provides additive information. Our work establishes a new state of the art in AI forecasting and provides practical, transferable recommendations for future research. To the best of our knowledge, this is the first work that verifiably achieves expert-level forecasting at scale.
title AIA Forecaster: Technical Report
topic Artificial Intelligence
url https://arxiv.org/abs/2511.07678