Sonar LLM Leaderboard - Java - Bug Density: leaderboard
Metric: Bugs per 1,000 lines of code (lower is better). Source: www.sonarsource.com. 73 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Kimi K2.6 | 0.52 |
| 2 | GPT-5.5 (Medium) | 0.52 |
| 3 | GPT-5.1 Codex (High) | 0.53 |
| 4 | GPT-5.5 (Low) | 0.54 |
| 5 | Claude Opus 5 (Thinking) | 0.58 |
| 6 | Qwen 3.5 397B A17B (Thinking) | 0.61 |
| 7 | Gemini 3 Pro (High) | 0.61 |
| 8 | GLM-5.2 | 0.62 |
| 9 | GPT-5.1 (High) | 0.62 |
| 10 | Gemini 3.1 Pro (Preview) (High) | 0.62 |
| 11 | GPT-5.1 (Medium) | 0.64 |
| 12 | GPT-5.4 (Medium) | 0.64 |
| 13 | GPT-5.4 (High) | 0.65 |
| 14 | GPT-5.4 Mini (Medium) | 0.67 |
| 15 | MiniMax-M3 | 0.69 |
Interactive version: theaggregate.ai/benchmark?slug=sonar-llm-leaderboard-java-bug-density · How It Works · Data refreshed daily, snapshot 2026-09-19.