transformers safetensors qwen2 text-generation conversational dataset:flammenai/FlameMix-DPO-v1 dataset:flammenai/MahouMix-v1 dataset:flammenai/Grill-Flammen-v1_chatML base_model:arcee-ai/Arcee-Spark base_model:finetune:arcee-ai/Arcee-Spark license:apache-2.0 autotrain_compatible text-generation-inference endpoints_compatible region:us