transformers safetensors mistral text-generation Mistral AI_ NF4 conversational en base_model:mistralai/Mistral-7B-Instruct-v0.2 base_model:quantized:mistralai/Mistral-7B-Instruct-v0.2 license:other autotrain_compatible text-generation-inference endpoints_compatible 4-bit bitsandbytes region:us