Build Your Stack

Answer three questions to find the optimal STT, LLM, and TTS combination for your use case. Based on real benchmark data.

This tool uses real latency data from our daily benchmarks to recommend a voice AI stack optimized for your priorities.
Data last updated: April 2026 · Ottawa, Canada + US East

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Stack Builder — Question 1 of 3
Question 1 of 3

What matters most to you?

Lowest possible latency (speed)
Best cost efficiency
Highest accuracy / quality
= Balance of all three
Question 2 of 3

Where are most of your users located?

North America
Europe
Asia Pacific
Global / distributed
Question 3 of 3

What's your expected request volume?

Prototype / low volume (<100 req/day)
Growing product (100–10K req/day)
Production scale (10K+ req/day)
Speed-optimized

Your recommended stack

Fastest available stack. All three providers optimized for low latency.

Per-stage breakdown
STT
Groq Whisper Large v3
360ms
LLM
Groq Llama 3.3 70B
140ms
TTS
Deepgram Aura Luna
156ms
STT
LLM
TTS
Total pipeline: ~656ms
Verify with modelping
modelping pipeline --stt groq/whisper-large-v3 --llm llama-3.3-70b-versatile --tts deepgram/aura-luna
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