PCB Routing on D2 Synthetic Gridless Board
100CPFreerouting
Evaluation Results
| Method | Links | ||||
|---|---|---|---|---|---|
| FreeroutingType=Stochastic, Seeds=42026.07 | 100 | 9.76 | 100 | 2.69 | |
| KiCadRoutingToolsType=Deterministic2026.07 | 100 | 10.34 | 100 | 0.82 | |
| PPOArchitecture=Transformer, Category=RL agent, Seeds=42026.07 | 100 | 10.52 | 100 | 0.43 | |
| GRPOArchitecture=Transformer, Category=RL agent, Seeds=42026.07 | 100 | 9.16 | 100 | 1.16 | |
| GPT-5.4Backbone=GPT-5.4, Rollouts=5, Category=LLM agent2026.07 | 96 | 10.28 | 100 | 94.04 | |
| GPT-5.4-miniBackbone=GPT-5.4-mini, Rollouts=5, Category=LLM agent2026.07 | 58 | 6.66 | 86 | 33.93 | |
| GPT-5.4-nanoBackbone=GPT-5.4-nano, Rollouts=5, Category=LLM agent2026.07 | 55 | 6.41 | 85 | 63.39 | |
| Qwen3.5-397BBackbone=Qwen3.5-397B, Rollouts=5, Category=LLM agent2026.07 | 33 | 3.85 | 74 | 47.58 | |
| OrthoRouteType=Deterministic2026.07 | 1 | -4.58 | 30 | 2.54 | |
| PPO (terminal)Architecture=Transformer, Category=RL agent, Seeds=42026.07 | 0 | -5.24 | 26 | 5.53 |