Balancing ultra-low latency and cloud economics in virtual voice agents

Why watch

Devin Reimer (AstroBeam) presents how Stellar Cafe achieved industry-leading voice interaction response times of 1.15s–1.4s while maintaining commercially sustainable cloud costs. This session covers hybrid architecture design combining on-device models with optimized cloud inference, Time-to-First-Token optimization techniques across Speech-to-Text and streaming Text-to-Speech pipelines, and practical unit economics per active user session. Ideal for engineers and product managers building real-time conversational voice applications.