{ "backbone": { "hidden_dim": 1024, "kwargs": { "attention_bias": false, "head_dim": 128, "intermediate_size": 3072, "max_position_embeddings": 40960, "num_heads": 16, "num_key_value_heads": 8, "num_layers": 28, "rms_norm_eps": 1e-06, "use_sliding_window": false }, "type": "qwen3" }, "encoder": { "kwargs": { "fourier_max": 10.0, "fourier_min": 0.01, "hidden_dim": 1024, "include_type_token": false, "modalities": [ { "allow_none": false, "field": "action", "method": "rff", "required": true, "std": 0.02, "tokens": 1, "type": "discrete", "vocab_size": 4 }, { "allow_none": false, "field": "observation", "method": "rff", "required": true, "std": 0.02, "tokens": 1, "type": "discrete", "vocab_size": 64 }, { "allow_none": false, "field": "reward", "in_max": 100.0, "in_min": 0.01, "method": "rff", "required": true, "std": 0.02, "tokens": 1, "type": "rff" }, { "allow_none": false, "field": "done", "method": "rff", "required": true, "std": 0.02, "tokens": 1, "type": "discrete", "vocab_size": 5 } ], "modality_fusion": "sum", "std": 0.02, "token_data_len": 1, "type_embedding_std": 0.0 }, "type": "step" }, "format": "mouse-core-model-v1", "heads": { "action_head": "action_value", "heads": [ { "hidden_dim": 1024, "in_features": 1024, "name": "action_value", "num_layers": 1, "out_features": 4, "scale": 0.1, "type": "action_value", "use_norm": true } ] }, "hidden_dim": 1024 }