models: - model: Qwen/Qwen2.5-0.5B-Instruct parameters: weight: 2.0 - model: Qwen/Qwen2-0.5B-Instruct parameters: weight: 1.0 merge_method: linear base_model: Qwen/Qwen2.5-0.5B-Instruct parameters: int8_mask: true dtype: bfloat16