Projects
AI Voice Agent System
Six voice AI stacks running in parallel — Hume, LiveKit + Gemini Live, ElevenLabs, Vapi, Retell and Twilio — compared to find which delivers authentic European Portuguese without trading away latency. Multilingual agents that answer calls 24/7 with no hold queue.
AI Voice Agent System
A voice agent that answers inbound and outbound calls, qualifies leads in natural conversation, books meetings straight onto the calendar, and hands off to a human with an attended transfer — so a caller is never dropped into voicemail. Multilingual: Portuguese, English, Spanish and French.
Built across six voice stacks in parallel to compare pipeline architectures — speech-to-speech against cascaded STT→LLM→TTS — and instrumented with per-turn latency measurement and daily health checks across ten external services.