Cost and latency audit for production voice agents

Find the money and milliseconds leaking from every call.

VoiceMargin breaks down STT, LLM, TTS, telephony, retries, interruptions, and failed turns, then turns the data into a prioritized fix list.

  • Source-code kit
  • No per-minute fee
  • Self-hosted
Sample result Margin leak found

$1,842

estimated monthly waste in one support workflow

2.7s p95 response delay
18% avoidable retries
$0.84 cost per resolved call

Interactive sample

Inspect a production-shaped session.

Change the workload assumptions below. The page uses local sample data and does not connect to a real voice platform.

session_audit / support-agent / sample-1042 LIVE SAMPLE
Cost this call $0.84 +61% vs target
Response p95 2.7s slowest stage: LLM
Completed turns 18 3 retried turns
Resolution confidence 82% medium confidence
Cost composition

Where the per-call budget went

Target: $0.52 per resolved call
Latency waterfall

Where the caller waited

p95 milliseconds by stage
Monthly waste estimate

Turn one sample into a budget conversation

Estimated avoidable spend $1,210 $14,515 per year at current volume

What the buyer receives

A report a team can act on the same day.

The sample product is narrow on purpose: ingest one representative session, explain the waste, and identify the fastest engineering fixes.

01

Cost attribution

See every provider and component that contributed to the final bill.

02

Latency waterfall

Separate model delay from speech, transport, tool, and retry delay.

03

Failure patterns

Find interruptions, duplicate tool calls, silence, and unresolved turns.

04

Fix priority

Rank changes by estimated savings, latency reduction, and implementation effort.

Northstar Home Services

Voice agent operating review

Sample data
Monthly avoidable spend $1,842
High impact

The agent retries address lookup after a timeout instead of asking once more. This adds 14.8 seconds and $0.19 in provider cost to 18% of calls.

Recommended first fix Cache address lookups for 30 minutes

Founder validation pricing

Buy the source, not another per-minute service.

Prices are intentionally simple for the first ten buyers. There is no hosted account, no deployment service, and no usage markup.

Starter

$199

For one developer testing the workflow

  • Source-code kit
  • Sample session, JSON schema, and tests
  • Cost and latency report template
  • One internal product
Buy Starter
Partner

$999

For agencies reselling client projects

  • Everything in Studio
  • Partner license for client projects
  • Unlimited end users and commercial use
  • Source-code ZIP, with no deployment included
Buy Partner

Self-hosted source kit

Buy the kit. Run the report on your own sessions.

Choose a license