models: - model: Lyra-DPO-18B parameters: weight: 0.2 density: 0.5 - model: Instruct-DPO-18B parameters: weight: 0.3 density: 0.6 - model: Magnum-DPO-18B parameters: weight: 0.5 density: 0.8 merge_method: della_linear base_model: Instruct-DPO-18B parameters: epsilon: 0.04 lambda: 1.05 dtype: bfloat16 tokenzer_source: union