transformers gguf llama llama3.1 llama3 meta 70b science physics biology chemistry compsci computer-science engineering logic rationality advanced expert technical conversational chat instruct mergekit merge en base_model:sequelbox/Llama3.1-70B-PlumChat base_model:quantized:sequelbox/Llama3.1-70B-PlumChat license:llama3.1 endpoints_compatible region:us imatrix