Voice AI Engineering Blog

Guides to voice AI pricing, latency, model selection, integrations, and production architecture.

All articles

Voice AI Production Costs: A Practical Breakdown

Published · Updated · Nikhil R.

Break down voice-agent production costs across transcription, language models, speech synthesis, infrastructure, and context management.

Implementing Cost-Effective Voice AI in Production

Published · Updated · Nikhil R.

An engineering guide to cost-aware voice AI pipelines, with current pricing examples, formulas, architecture, and production rollout guidance.

Voice AI API Integration Tutorial and Examples

Published · Updated · Nikhil R.

A voice AI API integration tutorial with STT, LLM, TTS, orchestration, and realtime patterns, plus caveats for historical code examples.

How to Choose a Speech-to-Text Provider

Published · Updated · Nikhil R.

Choose a speech-to-text provider by comparing streaming mode, accuracy, endpointing, latency, billing units, request minimums, and language support.

How to Choose a Text-to-Speech Provider

Published · Updated · Nikhil R.

Choose a text-to-speech provider by testing voice quality, languages, controls, streaming, time to first audio, and billing terms.

How to Choose an LLM for Voice AI Agents

Published · Updated · Nikhil R.

Choose an LLM for a voice AI agent by comparing token cost, latency, context policy, tool use, quality, caching, and deployment constraints.

How to Build a Voice AI Agent Stack

Published · Updated · Nikhil R.

Plan a voice AI agent stack by comparing STT, LLM, TTS, orchestration, latency, reliability, safety, and cost trade-offs.

How to Optimize Voice AI Costs

Published · Updated · Nikhil R.

Learn how STT, LLM, TTS, context, caching, and infrastructure choices affect voice-agent cost, with source-linked July 2026 examples.

How to Optimize Voice AI Latency

Published · Updated · Nikhil R.

Measure and reduce voice-agent latency across endpointing, STT, LLM, TTS, networking, buffering, and playback with workload-specific targets.

How to Use the Voice AI Pricing Calculator

Published · Updated · Nikhil R.

Learn what the Voice AI Pricing Calculator models, how its STT, LLM, TTS, latency, and infrastructure assumptions work, and how to use results.