transformers safetensors mixtral text-generation finetuned mistral 4-bit AWQ autotrain_compatible endpoints_compatible chatml conversational en arxiv:2310.06825 base_model:fxmeng/Mixtral-2x7B-Instruct-v0.1 base_model:quantized:fxmeng/Mixtral-2x7B-Instruct-v0.1 license:apache-2.0 model-index text-generation-inference awq region:us