Best Content Spinner for Tier1 Articles?

After years of doing offline stuff, I'm back to ranking websites again with the help of several tools I got. Looks like everything has changed and I've heard that you cant use spun content on T1 anymore. Is that so? Isn't there atleast a single tool to generate content for premium web 2.0 sites? I heard a lot of fancy things like AI integration, semantic spinning etc . Aren't they work?