Voice AI Guides
Technical guides from engineers who build voice agents in production.
Fundamentals
How AI Voice Agents Work
The complete architecture: telephony, STT, LLM, TTS, and how they connect.
TTS
Choosing a Text-to-Speech API
ElevenLabs, Rime, PlayAI, Amazon Polly — what matters for real-time voice.
STT
Choosing a Speech-to-Text API
Deepgram, AssemblyAI, Whisper, Google STT — speed vs accuracy trade-offs.
More guides coming soon. We publish new content weekly.