transformers safetensors mistral text-generation mergekit merge conversational base_model:HuggingFaceH4/zephyr-7b-beta base_model:merge:HuggingFaceH4/zephyr-7b-beta base_model:Qwen/Qwen2.5-0.5B-Instruct base_model:merge:Qwen/Qwen2.5-0.5B-Instruct autotrain_compatible text-generation-inference endpoints_compatible region:us