SWE Refactor Bench
Agentic software refactoring benchmark; agent harness Claude Code 2.1.220 at 200K context. Introduced on the MiniMax M3.1-Flash release card (M3.1-Flash + frontier competitor scores).
Category
Agentic Coding
Score type
percent
Scale
100%
higher is better
Models tested
4
What is SWE Refactor Bench?
SWE Refactor Bench is a benchmark for how well a model works as an autonomous coding agent. The official description says: "Agentic software refactoring benchmark; agent harness Claude Code 2.1.220 at 200K context". Below we describe in simple words what benchmarks of this type generally examine.
What does it test?
SWE Refactor Bench 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
How to read the score
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: Agentic software refactoring benchmark; agent harness Claude Code 2.1.220 at 200K context. Introduced on the MiniMax M3.1-Flash release card (M3.1-Flash + frontier competitor scores).
Frequently asked questions
What is the SWE Refactor Bench benchmark?
SWE Refactor Bench is a benchmark for how well a model works as an autonomous coding agent. The official description says: 'Agentic software refactoring benchmark; agent harness Claude Code 2.1.220 at 200K context'. Below we describe in simple words what benchmarks of this type generally examine.
What does SWE Refactor Bench test?
SWE Refactor Bench 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 Refactor Bench 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 Refactor Bench data and scores?
The official source is https://huggingface.co/MiniMaxAI/MiniMax-M3.1-Flash. 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-refactor-bench/scores) or pull it directly from the Open LLM Radar API with any HTTP client.
Benchmark data & downloads
Where to get, inspect and reuse the data behind this benchmark.
Official benchmark page / paper
The benchmark maintainer's website, paper or leaderboard
Benchmark metadata (JSON)
This page's benchmark record from the Open LLM Radar API
All model scores (JSON download)
Full score table as JSON; paginate with limit/offset params
Open LLM Radar API docs
Swagger UI to explore and reuse all radar API endpoints
Model scores 4 models tested
| # | Model | Score | Date | Source | Verified |
|---|---|---|---|---|---|
| 1 |
MiniMax-M3.1-Flash
MiniMaxAI
|
23%
|
19.10.2026 | Report | Verified |
| 2 |
Kimi K3
Moonshot AI
|
19.5%
|
19.10.2026 | Report | Unverified |
| 3 |
DeepSeek-V4.1-Flash
DeepSeek
|
11.8%
|
19.10.2026 | Report | Unverified |
| 4 |
GLM-5.3
Zhipu AI
|
10.4%
|
19.10.2026 | Report | Unverified |