[pizzapill]

Preface: I`m no expert.

What you are looking at here is a Natural Language Model. They are Chatbots. What you want is a classification model, the typical Spam filter is a Naive Bayes classifier.

If you want to run a Natural Language Model at a meaningful speed and size on your server you probably need a high end consumer graphics card. If you want to run a Natural Language Model that is big you will need high end server graphics cards. The first option is maybe $1k the other $10k.