JamBench - Theme and Description Generation: leaderboard
Metric: L3a runtime pass rate (%): share of generated Godot 4 projects that pass file-integrity and headless compilation checks and then run 30 seconds in headless mode without crashing; Task 1b: the jam theme plus a gameplay description; 50 real Game Jam themes, three runs each; the model writes a complete 2D Godot 4 project from scratch; direct generation, the model writes every file in one pass; higher is better. Source: arxiv.org. Saturation forecast: Around December 2026. 8 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.4 | 60.7 |
| 2 | Gemini 3.1 Pro (Preview) | 58.7 |
| 3 | Qwen 3.5 397B A17B | 53.3 |
| 4 | DeepSeek V4 Pro | 52.7 |
| 5 | Kimi K2.5 | 51.3 |
| 6 | Claude Opus 4.6 | 50 |
| 7 | GLM-5 | 49.3 |
| 8 | Qwen 3.5 27B | 29.3 |
Interactive version: theaggregate.ai/benchmark?slug=jambench-theme-and-description-generation · How It Works · Data refreshed daily, snapshot 2026-09-29.