Multi-SWE-bench JavaScript (MagentLess): leaderboard

The JavaScript split of Multi-SWE-bench (ByteDance Seed, 2025): 356 human-verified issues from real JavaScript repositories, which the agent resolves by editing the repository; a fix counts only when the project's tests pass. Scored as the percentage of issues resolved under MagentLess, the benchmark team's multilingual port of Agentless; higher is better.

Metric: Resolved rate (%). Source: multi-swe-bench.github.io. Saturation forecast: Around 2029. 12 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 2.5 Pro (Preview 03-25)8.71#234
2Llama 4 Maverick5.06#1105
3O1 (2024-12-17)5.06#310
4DeepSeek R14.49#467
5DeepSeek V33.37#705
6O3 Mini (2025-01-31) (High)2.81#486 (O3 Mini (2025-01-31))
7Claude 3.5 Sonnet (20241022)1.97#635
8Claude 3.7 Sonnet (20250219)1.97#399
9GPT-4o (2024-11-20)1.4#864
10Doubao-1.5-Pro1.12#585
11Qwen 2.5 72B Instruct0.84#1093

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=multi-swe-bench-javascript-magentless · How It Works · Data refreshed daily, snapshot 2026-11-12.