JamBench - Function Completion (Medium Projects, Claude Code): 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 2 code completion: 100 benchmark projects with medium code bases (4K to 15K lines), each manually verified playable; 30 to 50% of function bodies are cleared and must be rewritten; Claude Code as the agent harness, iterating with the Godot toolchain; higher is better. Source: arxiv.org. Saturation forecast: Around December 2026. 3 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Opus 4.6 | 70 |
| 2 | Qwen 3.5 397B A17B | 70 |
| 3 | DeepSeek V4 Pro | 68 |
Interactive version: theaggregate.ai/benchmark?slug=jambench-function-completion-medium-projects-claude-code · How It Works · Data refreshed daily, snapshot 2026-09-29.