Low-latency open-source voice bot platform
A voice AI startup needed a competitive voice-bot platform running at sub-1.2s latency and under $0.15 per minute. We built a flexible platform on open-source TTS, STT, and LLM models — now deployed on 4 continents.
About
Client
Voice AI startup (NDA)
Domain
Voice AI / conversational platforms
What we delivered
Open-source-based voice-bot platform
Stack
TTS + STT + LLM (all open source)
Footprint
Live on 4 continents
The challenge
Market leaders in voice bots lock their best performance behind proprietary contracts with AI providers. The client needed an alternative that matched their latency and cost — without the vendor lock-in.
The solution
We assembled an open-source TTS/STT/LLM stack into a single flexible platform tuned for low latency and low per-minute cost.
The outcome
p95 latency: 0.99–1.3s
Cost: ~$0.12 per minute
Deployed on 4 continents
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