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SWE-EVO: Benchmarking Coding Agents in Long-Horizon Software Evolution Scenarios

11 Pith papers cite this work. Polarity classification is still indexing.

11 Pith papers citing it
abstract

Existing benchmarks for AI coding agents focus on isolated, single-issue tasks such as fixing a bug or adding a small feature. However, real-world software engineering is a long-horizon endeavor: developers interpret high-level requirements, coordinate changes across many files, and evolve codebases over multiple iterations while preserving functionality. We introduce SWE-EVO, a benchmark for this long-horizon software evolution challenge. Constructed from release notes of seven mature open-source Python projects, SWE-EVO comprises 48 tasks requiring multi-step modifications spanning an average of 21 files, validated against test suites averaging 874 tests per instance. Experiments reveal a striking capability gap: GPT-5.4 with OpenHands achieves only 25% on SWE-EVO versus 72.80% achieved by GPT-5.2 on SWE-Bench Verified, showing that current agents struggle with sustained, multi-file reasoning. We also propose Fix Rate, a metric capturing partial progress on these complex, long-horizon tasks.

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cs.SE 7 cs.AI 4

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2026 11

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background 2 support 1

representative citing papers

VibeServe: Can AI Agents Build Bespoke LLM Serving Systems?

cs.AI · 2026-05-07 · unverdicted · novelty 8.0

VibeServe demonstrates that AI agents can synthesize bespoke LLM serving systems end-to-end, remaining competitive with vLLM in standard settings while outperforming it in six non-standard scenarios involving unusual models, workloads, or hardware.

StaminaBench: Stress-Testing Coding Agents over 100 Interaction Turns

cs.SE · 2026-06-17 · unverdicted · novelty 7.0

StaminaBench evaluates coding agents over 100 procedurally generated change requests to a REST API, finding that tested models fail within 5-6 turns without feedback but improve up to 12x with test feedback and good harnesses.

PBT-Bench: Benchmarking AI Agents on Property-Based Testing

cs.SE · 2026-05-13 · unverdicted · novelty 7.0 · 3 refs

PBT-Bench is a new benchmark with 100 property-based testing problems across 40 Python libraries that measures LLM bug recall rates of 42.1-83.4% under guided prompting versus 31.4-76.7% in baseline.

ProgramBench: Can Language Models Rebuild Programs From Scratch?

cs.SE · 2026-05-05 · unverdicted · novelty 7.0

ProgramBench introduces 200 tasks where models must reconstruct full programs like FFmpeg or SQLite from docs alone; none of 9 evaluated LMs fully solve any task and the best passes 95% tests on only 3% of tasks while favoring monolithic code.

AI for Auto-Research: Roadmap & User Guide

cs.AI · 2026-05-18 · conditional · novelty 4.0

AI can generate research artifacts faster than it can verify them, so across all eight lifecycle stages the credible deployment mode is human-governed collaboration rather than full autonomy.

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