Show HN: GPT-Live and GPT-Realtime: Arch Trade-Offs Behind Continuous Voice AI

A developer's LiveKit issue report found that 14 of 75 appointment-cancellation requests were not delegated to the backend within six seconds, and five were never delegated, even though the agent sometimes told callers the cancellation was underway. The post argues that GPT-Live's continuous voice frontend decides when to hand work to a reasoning backend, so delegation failures, overlapping-speech confirmations, and intent changes can leave backend intelligence and tools unused, while the closed model cannot be fine-tuned to fix them. It recommends measuring time to first substantive information and verified task completion rather than time-to-first-audio alone, and notes that preventive speech guardrails add latency and playback-state complexity.