transformers safetensors mistral text-generation mergekit merge arxiv:2203.05482 base_model:GAIR/Abel-7B-002 base_model:merge:GAIR/Abel-7B-002 base_model:mistralai/Mistral-7B-v0.1 base_model:merge:mistralai/Mistral-7B-v0.1 autotrain_compatible text-generation-inference endpoints_compatible region:us