Sonar LLM Leaderboard - Java - Vulnerability Density: leaderboard
Metric: Vulnerabilities per 1,000 lines of code (lower is better). Source: www.sonarsource.com. 73 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.4 Nano (Medium) | 0.04 |
| 2 | GPT-5.4 (Medium) | 0.04 |
| 3 | GPT-5.4 (High) | 0.05 |
| 4 | GPT-5.2 (High) | 0.05 |
| 5 | GPT-5.4 Mini (Medium) | 0.06 |
| 6 | GPT-5.5 (Medium) | 0.06 |
| 7 | GPT-5.5 (Low) | 0.06 |
| 8 | GPT-5.3 Codex (High) | 0.07 |
| 9 | GPT-5.1 (High) | 0.09 |
| 10 | GPT-5.1 (Medium) | 0.11 |
| 11 | GPT-5.1 Codex (High) | 0.11 |
| 12 | Gemma 3 4B (IT) | 0.12 |
| 13 | Claude Opus 4.6 (High) | 0.14 |
| 14 | Claude Opus 4.5 (High) | 0.14 |
| 15 | GPT-5 Mini (Medium) | 0.17 |
Interactive version: theaggregate.ai/benchmark?slug=sonar-llm-leaderboard-java-vulnerability-density · How It Works · Data refreshed daily, snapshot 2026-09-19.