DETOUR

DETOUR: An Interactive Benchmark for Dual-Agent Search and Reasoning

A two-agent benchmark for tip-of-the-tongue search across several turns.

Li Siyan, Darshan Deshpande, Anand Kannappan, Rebecca Qian
“Konari, Iran”, Zagros Mountains
01

In brief

02

Key figure

The full dual-agent harness, text-only and with image inputs, mean of three runs with 95% confidence intervals. The best model stays below 70%, and every model loses accuracy when image inputs are added.
The full dual-agent harness, text-only and with image inputs, mean of three runs with 95% confidence intervals. The best model stays below 70%, and every model loses accuracy when image inputs are added.
03

Runs

03

Abstract

When recalling information in conversation, people often arrive at the recollection after multiple turns. However, existing benchmarks for evaluating agent capabilities in such tip-of-the-tongue search processes are restricted to single-turn settings. To more realistically simulate tip-of-the-tongue search, we introduce Dual-agent based Evaluation Through Obscure Under-specified Retrieval (DETOUR), a dual-agent evaluation benchmark containing 1,011 prompts. The benchmark design involves a Primary Agent, which is the subject of evaluation, tasked with identifying the recollected entity through querying a Memory Agent that is held consistent across evaluations. Our results indicate that current state-of-the-art models still struggle with our benchmark, only achieving 36% accuracy when evaluated on all modalities (text, image, audio, and video), highlighting the importance of enhancing capabilities in underspecified scenarios.

Cite this
TextBibTeXCopy
Li Siyan, Darshan Deshpande, Anand Kannappan, Rebecca Qian. DETOUR: An Interactive Benchmark for Dual-Agent Search and Reasoning. ACL 2026 GEM Workshop (Workshop). arXiv:2602.00352.
@inproceedings{siyan2026detour, title={DETOUR: An Interactive Benchmark for Dual-Agent Search and Reasoning}, author={Li Siyan and Darshan Deshpande and Anand Kannappan and Rebecca Qian}, booktitle={ACL 2026 GEM Workshop, Workshop}, year={2026}, eprint={2602.00352}, archivePrefix={arXiv} }
arXiv 2602.00352
January 30, 2026
ACL 2026 GEM Workshop
Workshop
Workshop
detour
More research
All research →
“A Study in Color”, Kenya
meta

Generative Simulators

Environments that generate their own tasks, world dynamics and rewards.

December 17, 2025
Technical report (PDF)
generative-simulators
“Desert Ribbons”, Morocco
NeurIPS 2025 Workshop
meta

MEMTRACK

Testing whether agents keep track of facts spread across workplace tools.

October 1, 2025
arXiv 2510.01353
Workshop
memtrack
NeurIPS 2025 Workshop
“Desert Patterns”, Erg Chech, Algeria
meta

FinanceBench

Open-book financial question answering about publicly traded companies.

November 20, 2023
arXiv 2311.11944
financebench
From the blog
All posts →
No items found.