xAI has that functionality in the business tier: https://x.ai/grok/business. It's got GPDR, HIPPA, etc. We are playing with Harvey, Legora, and Lucio, which can use various models. Harvey can use Grok: https://x.com/techdevnotes/status/2074956936701968652

Harvey is fairly impressive--it's the only one that seems to be built by people who know how LLMs work. :-/