A Guide to Choosing Voice AI Models

Cartesia published a guide on selecting voice AI models for enterprise voice agents, emphasizing that real-world performance depends on use-case-specific conditions such as telephony infrastructure, noise, and conversational dynamics.

The guide recommends evaluating models on metrics like Time-to-Complete-Transcript (TTCT) rather than Time-to-First-Token, and highlights the importance of turn detection and interruption handling.