transformers safetensors llama text-generation stellar-bright llama-2 llama-2-chat 70b en base_model:sequelbox/Llama2-70B-StellarBright base_model:quantized:sequelbox/Llama2-70B-StellarBright license:llama2 autotrain_compatible text-generation-inference 4-bit gptq region:us