WebMall -- A Multi-Shop Benchmark for Evaluating Web Agents

Fuente: arXiv
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Main Authors: Peeters, Ralph, Steiner, Aaron, Schwarz, Luca, Caspary, Julian Yuya, Bizer, Christian
Format: Preprint
Published: 2025
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author Peeters, Ralph
Steiner, Aaron
Schwarz, Luca
Caspary, Julian Yuya
Bizer, Christian
author_facet Peeters, Ralph
Steiner, Aaron
Schwarz, Luca
Caspary, Julian Yuya
Bizer, Christian
contents LLM-based web agents have the potential to automate long-running web tasks, such as searching for products in multiple e-shops and subsequently ordering the cheapest products that meet the users needs. Benchmarks for evaluating web agents either require agents to perform tasks online using the live Web or offline using simulated environments, the latter allowing for the exact reproduction of the experimental setup. While DeepShop and ShoppingComp provide online benchmarks that require agents to perform challenging shopping tasks, existing offline benchmarks such as WebShop, WebArena, and Mind2Web cover only comparatively simple e-commerce tasks performed against a single shop containing product data from a single source. What is missing is an e-commerce benchmark that simulates multiple shops containing heterogeneous product data and requires agents to perform complex retrieval tasks. We fill this gap by introducing WebMall, the first offline multi-shop benchmark for evaluating web agents on challenging comparison shopping tasks. WebMall consists of four simulated shops populated with product data extracted from the Common Crawl. The WebMall tasks range from specific product searches and price comparisons to advanced searches for complementary or substitute products, as well as checkout processes. We validate WebMall using eight agents that differ in observation space, availability of short-term memory, and the employed LLM. The validation highlights the difficulty of the benchmark, with the best-performing agents achieving task completion rates below 65% in the task categories cheapest product search and vague product search.
format Preprint
id arxiv_https___arxiv_org_abs_2508_13024
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle WebMall -- A Multi-Shop Benchmark for Evaluating Web Agents
Peeters, Ralph
Steiner, Aaron
Schwarz, Luca
Caspary, Julian Yuya
Bizer, Christian
Computation and Language
LLM-based web agents have the potential to automate long-running web tasks, such as searching for products in multiple e-shops and subsequently ordering the cheapest products that meet the users needs. Benchmarks for evaluating web agents either require agents to perform tasks online using the live Web or offline using simulated environments, the latter allowing for the exact reproduction of the experimental setup. While DeepShop and ShoppingComp provide online benchmarks that require agents to perform challenging shopping tasks, existing offline benchmarks such as WebShop, WebArena, and Mind2Web cover only comparatively simple e-commerce tasks performed against a single shop containing product data from a single source. What is missing is an e-commerce benchmark that simulates multiple shops containing heterogeneous product data and requires agents to perform complex retrieval tasks. We fill this gap by introducing WebMall, the first offline multi-shop benchmark for evaluating web agents on challenging comparison shopping tasks. WebMall consists of four simulated shops populated with product data extracted from the Common Crawl. The WebMall tasks range from specific product searches and price comparisons to advanced searches for complementary or substitute products, as well as checkout processes. We validate WebMall using eight agents that differ in observation space, availability of short-term memory, and the employed LLM. The validation highlights the difficulty of the benchmark, with the best-performing agents achieving task completion rates below 65% in the task categories cheapest product search and vague product search.
title WebMall -- A Multi-Shop Benchmark for Evaluating Web Agents
topic Computation and Language
url https://arxiv.org/abs/2508.13024