How we trained a voice profile to make AI LinkedIn posts sound less like AI

Most AI writing tools have a tell. The hook is too clean. The structure is too predictable. LinkedIn audiences in particular have gotten good at spotting it. The root problem: AI generates from a blank slate. It doesn't know your cadence, your typical opening, the way you end a thought. For XreplyAI, we took a different approach. Before generating anything, we build a voice profile from the user's own tweet archive - embedding similarity to find characteristic patterns, then injecting those as a style layer into the prompt. The result isn't perfect, but it's personal.