SWE-Marathon

SWE-Marathon is a benchmark for how well a model works as an autonomous coding agent. The official description says: "SWE-Marathon - long-horizon software engineering benchmark". Below we describe in simple words what benchmarks of this type generally examine.

SWE-Marathon measures how well a model works as an autonomous coding agent. In detail, it checks:

• fixing real, open bugs from real software repositories
• planning multi-step changes, running commands and editing files by itself
• passing the project's test suite after its changes
• handling whole repositories, not just small isolated code snippets

The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better.

Official methodology note: SWE-Marathon - long-horizon software engineering benchmark. Evaluated by Abundant AI with 1M context length, max effort level, and 128K maximum output tokens.

What is the SWE-Marathon benchmark?

SWE-Marathon is a benchmark for how well a model works as an autonomous coding agent. The official description says: 'SWE-Marathon - long-horizon software engineering benchmark'. Below we describe in simple words what benchmarks of this type generally examine.

What does SWE-Marathon test?

SWE-Marathon mainly measures how well a model works as an autonomous coding agent. Concretely, it checks: fixing real, open bugs from real software repositories; planning multi-step changes, running commands and editing files by itself; passing the project's test suite after its changes.

How is the SWE-Marathon score calculated?

The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better. The declared maximum score of this benchmark is 100.0.

Where do I get SWE-Marathon data and scores?

The official benchmark page/reference is linked on this page. Every score on Open LLM Radar is also available as open data: download the scores JSON (http://open-llm-radar-api:8000/api/v1/benchmarks/swe-marathon/scores) or pull it directly from the Open LLM Radar API with any HTTP client.