When is it worth to trademark your business name?

I'm looking for some advice. I own a SaaS company, let's call it "Caterpillar AI". I own the strongest domain variation in the space (dot com). The product has a domain that ranks well organically for its primary keywords and is showing up in AI search results (ChatGPT, etc.). The brand name is generic enough that several competitors use similar names in the space. I'm trying to figure out timing and strategy for trademarking the name. If I tradema