InterviewFlowAI

Teams building AI voice agents have a voice but no face, which can make automated calls feel less trustworthy or engaging for users in contexts like support, recruiting, tutoring, sales or presentations. Building a face-to-face agent otherwise means standing up media servers, handling lip sync, expressions, interruptions and reconnection logic, and keeping video and audio in sync over WebRTC. Existing options may require subscriptions, per-session minimums, or lock-in to a specific voice or video stack rather than working with any TTS provider or any language.

Talking Avatar offers three ways to add a face to a voice agent: a developer API called Realistic Avatars that streams an agent's voice to a photorealistic avatar for $0.02 per minute via one npm package with /server and /live clients handling streaming, playback, interruptions and reconnection; a no-code Voice Agents builder where a user writes a prompt, picks a face and voice, and shares or embeds the result for $0.06 per minute with AI, voice, and speech recognition included; and a free, MIT-licensed Open Source 3D avatar that runs entirely in the browser with a 1 MB model doing lip sync, blinks and brows, with no server or API key. The API works with any TTS provider (OpenAI, ElevenLabs, Azure, Fish Audio, Cartesia) and integrates as a LiveKit room participant, with stated response time under 250ms and billing per second rather than per session. Custom avatars built from a person's video and voice recording (with consent) are available for a one-time $199 fee.