Voice assistant

Compare LLMs powering voice agents: latency, throughput, multilingual support, real per-call cost.

Your usage

Default assumptions

Monthly requests600,000

Avg input tokens800

Avg output tokens200

When to use this scenario

Voice agents (phone bots, in-app voice) live or die by latency. Each turn must respond in <1s to feel natural. Throughput (tokens/second) matters because users expect streaming.

Use a fast Flash-tier model (Gemini 2.5 Flash, GPT-5 mini, Claude Haiku) — quality difference vs frontier is small for short turn-taking. The math: 100K calls × 6 turns/call = 600K LLM calls.

Common pitfalls

Picking on raw quality benchmarks (slow models break the conversation feel)
Forgetting STT/TTS cost on top
Not budgeting for the multi-turn multiplier

Recommended routing

Sorted by best value for your usage

PRIMARY

Gemini 2.5 Flash

Google · quality 78 · 320 tok/s

Monthly cost$444

Vs baseline−75%

P50 latency0.3s

Use this

FALLBACK

GPT-5 mini

OpenAI · quality 84 · 280 tok/s

Monthly cost$360

Vs baseline−80%

P50 latency0.3s

Add as fallback

DeepSeek V3.5

DeepSeek · quality 81 · 95 tok/s

Monthly cost$101

Vs baseline−94%

P50 latency1.5s

Try

Baseline = GPT-5 at the same usage = $1.8K/mo.

Routing simulator

Phase 2 preview

Drag the slider to split traffic between Gemini 2.5 Flash (primary) and GPT-5 mini (fallback). See how your monthly bill moves — without writing a line of gateway code.

Primary: Gemini 2.5 FlashFallback: GPT-5 mini

70% Gemini30% GPT-5

Blended monthly cost$419at the usage assumed above

Vs GPT-5−77%$1.8K → $419

Vs all-primary−6%$444 → $419

Phase 2 turns this routing into a real OpenAI-compatible endpoint — one key, one bill, automatic failover. Drop your email to be notified at launch.

Stored in your browser only until our email backend lands. No tracking, one click to remove.

Use this routing via API

Phase 2 preview · gateway not live yet

PHASE 2 PREVIEW · gateway not live yetThis endpoint does not exist yet. The gateway is in Phase 2 — what you see below is a design preview of the planned interface, not a live API. We will email subscribers when it launches.

Preview the planned API call

$ curl https://api.aipricly.com/v1/chat/completions \
  -H "Authorization: Bearer $AIPC_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "scenario": "voice-assistant",
    "messages": [{"role": "user", "content": "..."}]
  }'

Get notified at launch

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