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Operations#voice#realtime#telephony#low-latency

Real-Time Voice AI Agent Stack

Sub-300ms full-duplex conversational voice agent for outbound calls, automotive assistants, and live interactive interpretation with instant interruption handling.

A
ModelPriceLab
·Updated Oct 5·350 views
Cost evidence
$145.00/mo
$1740.00 /yr
Models
2
Score
0
Comments
0
Stack

Models in this stack

1
GPT-Realtime 2.1
openaiaudio

Full-duplex speech-to-speech engine with live interruption support

Input / 1M
$4
Output / 1M
$24
Monthly
$115
Image
$/img
Usage estimate
Cost$115.00
2
DeepSeek V4.1 Flash

Background tool orchestration, CRM lookups, and function calling

Input / 1M
$0.003
Output / 1M
$2.4
Monthly
$30
Image
$/img
Usage estimate
Cost$30.00

Production Deployment & FinOps Guidelines

1. Tiered Routing

Route 80% of standard intent/filtering requests to low-cost lightweight models, reserving frontier models only for complex reasoning.

2. Context Caching

Evaluate prompt caching for reusable system instructions and retrieval prefixes. Savings depend on vendor rates, cache-hit ratio, and request shape, and must be validated against billing data.

3. Fallback Resiliency

Configure secondary aggregator or alternative provider failovers to sustain uptime when primary endpoints hit rate limits.

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Estimated Cost
$145.00/ mo
Annualized: $1740.00 / yr
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