transformers safetensors mistral text-generation mergekit merge conversational arxiv:2203.05482 base_model:Open-Orca/Mistral-7B-SlimOrca base_model:merge:Open-Orca/Mistral-7B-SlimOrca base_model:teknium/OpenHermes-2.5-Mistral-7B base_model:merge:teknium/OpenHermes-2.5-Mistral-7B license:unlicense autotrain_compatible text-generation-inference endpoints_compatible region:us