Voice AI products fail when the system feels like a demo instead of a conversation.
The hard parts are rarely the model call by itself. The work is in latency, turn-taking, interruption, repair, memory, and the small product decisions that make a voice loop feel calm.
Notes
- Users notice dead air faster than they notice model quality.
- A good interruption model matters more than a clever prompt.
- Speech repair should be designed as a first-class state, not an error path.
- The best voice interfaces keep the user oriented without explaining themselves.
Working rule
Optimize for the moment when the user changes their mind mid-sentence. That is where the interface starts feeling real.