transformers safetensors llama text-generation pruna-ai conversational base_model:openbmb/MiniCPM-2B-sft-bf16-llama-format base_model:quantized:openbmb/MiniCPM-2B-sft-bf16-llama-format autotrain_compatible text-generation-inference endpoints_compatible 4-bit bitsandbytes region:us