Yep, Azure offers automated content moderation: https://azure.microsoft.com/en-us/products/ai-services/ai-co...

I don't know if they're using a LLM specifically, as opposed to say computer vision models or some other method.

Pricing: https://azure.microsoft.com/en-us/pricing/details/cognitive-...

AWS has something similar: https://aws.amazon.com/rekognition/content-moderation/