Voice in AI modality is considered to have a uniquely difficult interface mechanism as it employs probabilistic AI as opposed to deterministic machine learning-based voice services such as Apple Siri . The Humane AI pin, a futuristic, small wearable AI device that can be pinned to one’s clothing, works on finger gestures and voice for operating the device . Eleven Labs, which creates AI-powered tools for generating and editing videos, came to limelight a few months ago .