The text discusses end-of-turn detection in voice AI applications, which is challenging due to the variability of human speech and non-verbal cues. The most common technique, phrase endpointing, uses voice activity detection (VAD) to detect silence and trigger a response from the AI model. However, VAD has limitations, such as not considering semantics and nuances of human speech. To address this, LiveKit's Agents framework has developed an open-source transformer model called End of Utterance (EOU), which uses content analysis to predict when a user has finished speaking. The EOU model reduces unintentional interruptions by 85% compared to using VAD alone and is particularly useful in conversational AI and customer support use cases. The future of turn detection involves exploring improvements, such as increasing the context window and improving inference speed, as well as developing new audio-based models that consider non-verbal cues like intonation and cadence.