transformers safetensors mistral text-generation mergekit merge conversational arxiv:2306.01708 base_model:Rakuten/RakutenAI-7B-chat base_model:merge:Rakuten/RakutenAI-7B-chat base_model:cognitivecomputations/dolphin-2.8-mistral-7b-v02 base_model:merge:cognitivecomputations/dolphin-2.8-mistral-7b-v02 autotrain_compatible text-generation-inference endpoints_compatible region:us