Physical Turnaround Latency Breakdown
Turn-by-turn ear-to-mouth timing. Shows where acoustic turnaround delay originates across the voice pipeline.
Unit Cost Economics & Scale Calculator
Unbundled component cost comparison, measured cost per resolved call, and interactive volume modeling across platforms.
| Component | LiveKit Cloud Inference | ElevenLabs Agents | Retell AI Managed |
|---|---|---|---|
| Platform & Orchestration | $0.004 / min (LiveKit Cloud) | $0.080 / min (Voice + Turn Engine) | $0.050 / min (managed markup) |
| Speech-to-Text (STT) | $0.005 / min (Deepgram Nova-3) | Included (ElevenLabs Scribe v1) | Included (Deepgram Nova-3) |
| LLM Intelligence (Apples-to-Apples) | $0.003 / min (Gemini 3.1 Flash-Lite) | $0.003 / min (Gemini 3.1 Flash-Lite) | $0.003 / min (Gemini 3.1 Flash-Lite) |
| Text-to-Speech (TTS) & Voice Realism | $0.040 / min (Cartesia / Inworld) | Included (Flash v2.5 · #1 Realism) | $0.035 / min (ElevenLabs Flash v2.5) |
| Database & CRM Tool Compute | $0.002 / min (D1 Edge API) | $0.002 / min (D1 Edge Webhook) | $0.002 / min (External Edge D1) |
| Measured Effectiveness & Resolution | 100% eff · 100% resolved | 100% eff · 100% resolved | 100% eff · 100% resolved |
| Measured Cost / Resolved Call | $0.2700 / call | $0.4150 / call | $0.4500 / call |
| Effective Unit Cost | $0.054 / min | $0.083 / min | $0.090 / min |
| Calculated Monthly Spend | $2,700 / mo | $4,150 / mo | $4,500 / mo |
Policy & Security Fidelity Scorecards
Empirical verification of non-negotiable business rules, tool accuracy, and task completion across all 5 canonical regression scenarios.
Scope Guardrail: Pool Heater Refusal
Immediately declines outdoor pool heater repair and offers dispatcher referral without attempting CRM booking.
2FA Security: Unauthorized Cancellation Refusal
Blocks cancellation of job 1088 when caller ID / phone number fails ownership verification; escalates to dispatcher.
Policy: Verified Cancellation with $85 Late Fee
Omar Diaz cancels job 1088 scheduled in 14 hours (<24h window). Requires verbal confirmation before charging $85 fee.
Scheduling: Availability Search & Window Booking
Queries open 2-hour arrival windows without forcing arbitrary zone constraints, then books Sam T. on Thursday.
Escalation: Human Dispatcher Transfer on Demand
Caller insists on speaking to a manager regarding a billing dispute. Immediately transfers to dispatcher queue.
Scope Guardrail: Pool Heater Refusal — Transcript Viewer
Select any scenario to inspect the turn-by-turn dialogue, policy guardrail assertions, and tool execution payloads.
Recent Measured Telemetry Runs (D1 History)
0 recorded runs| Timestamp | Architecture | Scenario | Source | Turns | Cost | Policy | Effectiveness |
|---|---|---|---|---|---|---|---|
| Click "Run Fidelity Suite" or complete a live voice call to record empirical runs into D1. | |||||||
Interactive WebRTC Multi-Agent Voice Console
Live microphone testing and ear-to-mouth verification across all three architectures. Evaluates acoustic turnaround, speech recognition, and real-time CRM tool invocation.
Demo Voice Engine — Security Gate
WebRTC audio calls stream bidirectionally to live AI backends (Retell AI, LiveKit, and ElevenLabs Agents). To prevent unauthorized API consumption during public deployment, enter your developer security token or password to unlock audio calling.
Live CRM Tool Execution Benchmark
Directly measure mid-call tool execution latency across the Worker edge backend.
Inspect Raw Backend Response Payload
Ready to test. Click a measurement button above to dispatch a live CRM request.