{ "phase": 2, "maze_sizes": [ 3, 4, 5, 6 ], "max_size": 6, "epochs": 6, "learning_rate": 3e-05, "split": "aug_5", "training_examples": 125914, "output_path": "/root/checkpoints/v12_sampled_5_100/phase_2", "chat_format": "qwen3" }