{ "format_version": 1, "base_model_dir": "Qwen3-8B", "lora_dir": "step_2200", "projector_path": "projector.pth", "proj_arch": "mlp2x_relu", "torch_dtype": "bfloat16", "attn_implementation": null, "trust_remote_code": true, "reward_activation": "sigmoid" }