PrivateFlow
Voice AI

Voice AI that speaks your business

Voice AI across 5 providers, low-latency streaming, and 9 language models. Build voice agents that handle customer calls, internal briefings, and multilingual support - with the same safety guardrails as your text agents.

Realtime voice
Tool use
Human handoffs
Audit trail
Voice AI beta launch visualAnimated voice signal, waveform, and launch status for the Voice AI beta.Beta availablePRIVATE BETA ACCESSSTATUSBetaRealtime voice, tool use, human handoff, and audit trails available in private beta.
The Voice Challenge

Voice AI without the blind spots.

Most voice automation trades compliance for speed. Call centers face growing pressure to automate - but current tools create new risks.

Call volume overwhelms agents

Peak hours create backlogs, hold times spike, and customers drop off before reaching anyone. Hiring scales linearly - costs scale linearly too.

Most
calls peak outside business hours

Note: All statistics shown are illustrative industry estimates, not verified data points. Actual figures vary by organization and market.

What your voice agents can do

Flagship voice experiences for live calls, routed tools, human approval, memory, and multilingual escalation.

Same control plane as text agents

Voice flows use the same guardrails, human-in-the-loop gates, and audit trail as your text workflows. Every voice interaction is logged, searchable, and auditable.

Capture
Route
Guardrails
Tool / Approval
Response
Audit

Choose the voice engine that fits your stack

Switch providers without changing your flow. Same guardrails, same approval gates, same audit trail.

OpenAI Realtime

Browser-first live voice with low-latency turn taking and direct WebRTC support.

Latency: <300ms (typical)
Languages: 60+

Gemini Live

Multimodal live sessions with fast back-and-forth and flexible provider routing.

Latency: <350ms (typical)
Languages: 40+

ElevenLabs

Branded voice quality for polished outbound calls and customer-facing experiences.

Latency: <300ms (typical)
Languages: 29

Cascading

Backend-controlled STT + LLM + TTS orchestration with explicit transport control.

Latency: <350ms (typical)
Languages: 50+

PersonaPlex

Provider-managed voice behavior with the same orchestration and recovery flow.

Latency: <400ms (typical)
Languages: 30+
Voice AI Questions

Common questions about voice automation.

PrivateFlow supports OpenAI Realtime, Gemini Live, ElevenLabs, Cascading, and PersonaPlex. The platform selects the best provider based on latency, language, control requirements, and whether you want browser-first or provider-managed transport.
Yes. PrivateFlow's human-in-the-loop controls support real-time handoff during active calls. The AI can detect escalation triggers (sentiment, topic, customer request) and route to a human agent with full conversation context preserved.
Voice interactions can be recorded, transcribed, and logged with auditable records when configured. Guardrails run in real time to reduce off-script responses. Sensitive data detection can redact PII from transcripts automatically.
Language support depends on the configured voice provider. Most providers support 30+ languages with real-time transcription and synthesis. PrivateFlow's routing layer can select the optimal provider per language automatically.
The PrivateFlow platform is self-hosted. Voice synthesis and recognition typically use cloud provider APIs (ElevenLabs, Google, Azure), but all orchestration, guardrails, logging, and data storage remain within your infrastructure.
Voice costs depend on the synthesis/recognition provider rates plus PrivateFlow platform usage. Contact us for a personalized assessment based on your call volume and provider preferences.

Start building voice agents

Same platform. Same controls. Add voice to any workflow in minutes without losing guardrails or auditability.

Request a Demo