Hi there, CEO of NuMind here, absolutely agree, these models are meant to be fine-tuned to be really useful. Right now you can see how the input -> output are formatted in the model card on HuggingFace. From that you can create a set of input -> output and fine-tune NuExtract. We are working on a platform to make this fine-tuning easier.
A foundation model allowing to create custom NER models with 5x less training data. Obtained by training on a dataset automatically annotated by GPT-3.5.