transformers safetensors llama text-generation mergekit merge conversational arxiv:2212.04089 base_model:Frowning/L3-Instruct-15B-SimPO-ExPO base_model:merge:Frowning/L3-Instruct-15B-SimPO-ExPO base_model:Frowning/L3-Stheno-v3.2-15B base_model:merge:Frowning/L3-Stheno-v3.2-15B autotrain_compatible text-generation-inference endpoints_compatible region:us