transformers gguf chat qwen qwen2 qwen2.5 finetune chatml en dataset:argilla/ultrafeedback-binarized-preferences base_model:MaziyarPanahi/calme-2.2-qwen2.5-72b base_model:quantized:MaziyarPanahi/calme-2.2-qwen2.5-72b license:other endpoints_compatible region:us imatrix conversational