LLM

Hello folks, 
I`m the founder of Smart Immigration based in Montreal. As part of my business, I have to use NLP and LLM to set up my database and build up my start-up. I was thinking of Open AI, Meta, or Bard LLM and I was trying to understand which one is better to use their model for my biz. I would like to get your advice if you have ever used any of those for your biz and can give me a piece of advice about it. 
Thank you very much.