transformers safetensors llama text-generation nm-vllm marlin int4 conversational arxiv:2210.17323 base_model:TinyLlama/TinyLlama-1.1B-Chat-v1.0 base_model:quantized:TinyLlama/TinyLlama-1.1B-Chat-v1.0 autotrain_compatible text-generation-inference endpoints_compatible 4-bit gptq region:us