Speech to Speech vs Cascade Voice Agent Architecture: Complete Technical & Benchmark Guide (2026)
Voice AIAI Agent ArchitectureSpeech to SpeechCascade ArchitectureVoice AI BenchmarkWebRTCLatency OptimizationConversational AITough Tongue AI
A deep technical breakdown comparing Speech to Speech (S2S) multimodal models with Modular Cascade (STT + LLM + TTS) architectures for real-time voice agents. Includes latency benchmarks, cost comparisons, tool calling flexibility, and complete step-by-step production code.