If you are wait listed and eager to try this, I will save you some time. Try this model - https://huggingface.co/MoritzLaurer/deberta-v3-large-zerosho... . They are using something similar under the hood. The comparison to LLMs on their blog post is definitely shady.
Example to try on this model:
customer complaint - My credit card was charged twice for the same subscription
labels - billing, technical, sales
The model will always return something from the above classes - "so it can't hallucinate".