transformers safetensors mistral text-generation mergekit merge arxiv:2306.01708 base_model:mistralai/Mistral-7B-v0.1 base_model:merge:mistralai/Mistral-7B-v0.1 base_model:prometheus-eval/prometheus-7b-v1.0 base_model:merge:prometheus-eval/prometheus-7b-v1.0 autotrain_compatible text-generation-inference endpoints_compatible region:us