SWE-bench Goes Live!
Authors: name: Linghao Zhang, name: Shilin He, name: Chaoyun Zhang, name: Yu Kang, name: Bowen Li, name: Chengxing Xie, name: Junhao Wang, name: Maoquan Wang, name: Yufan Huang, name: Shengyu Fu, name: Elsie Nallipogu, name: Qingwei Lin, name: Yingnong Dang, name: Saravan Rajmohan, name: Dongmei Zhang

The issue-resolving task, where a model generates patches to fix real-world
bugs, has emerged as a critical benchmark for evaluating the capabilities of
large language models (LLMs). While SWE-bench and its variants have become
standard in this domain, they suffer from key limitations: they have not been
updated since their initial releases, cover a narrow set of repositories, and
depend heavily on manual effort for instance construction and environment
setup. These factors hinder scalability and introduce risks of overfitting and
data contamination. In this work, we present SWE-bench-Live, a
live-updatable benchmark designed to overcome these challenges. Our
initial release consists of 1,319 tasks derived from real GitHub issues created
since 2024, spanning 93 repositories. Each task is accompanied by a dedicated
Docker image to ensure reproducible execution. Central to our benchmark is
\method, an automated curation pipeline that streamlines the entire process
from instance creation to environment setup, removing manual bottlenecks and
enabling scalability and continuous updates. We evaluate a range of
state-of-the-art agent frameworks and LLMs on SWE-bench-Live, revealing a
substantial performance gap compared to static benchmarks like SWE-bench, even
under controlled evaluation conditions. To better understand this discrepancy,
we perform detailed analyses across repository origin, issue recency, and task
difficulty. By providing a fresh, diverse, and executable benchmark grounded in
live repository activity, SWE-bench-Live facilitates rigorous,
contamination-resistant evaluation of LLMs and agents in dynamic, real-world
software development settings.