R2ABench - Syntax Validity: leaderboard
Metric: Syntax-valid rate (0-1): share of generated views that render and parse into an architecture graph (L0), over the 68 R2ABench projects (17 educational and 51 GitHub repositories), generating a PlantUML architecture view from the structured requirements specification with the model prompted directly under default settings and greedy decoding; higher is better. Source: arxiv.org. Saturation forecast: Estimated already saturated. 4 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Sonnet 4.6 | 0.97 |
| 2 | GPT-5 | 0.9 |
| 3 | DeepSeek V3.2 | 0.71 |
| 4 | Qwen 3 Coder 480B A35B | 0.57 |
Interactive version: theaggregate.ai/benchmark?slug=r2abench-syntax-validity · How It Works · Data refreshed daily, snapshot 2026-10-07.