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Vapi

15 voice-agent/Vapi/ACTIVE

Vapi is the developer platform for voice agents: API-first orchestration of STT, LLM, TTS, and telephony so you can put an agent on a phone number in minutes — and swap every layer.

SEC.01

What it does

  • 01API-first voice orchestration
  • 02Bring-your-own models
  • 03Sub-second latency stack
  • 04Inbound + outbound calls
  • 05Tools/function calling mid-call
  • 06Telephony included or BYO
SEC.02

Who it's for

Developers building voice products who want full control of the stack without owning telephony plumbing.

PRICING

Pricing

Usage-based: ~$0.05/min platform fee + model/telephony costs. List prices as checked against the vendor's pricing page on 2026-09-25; plans change often, so confirm before deciding.

caveat · before you adopt

The headline ~$0.05/min is the platform fee — STT/LLM/TTS/telco stack on top; real cost at volume needs careful provider choices.

ALT

Other voice agents (6)

Bland AI

Bland AI · voice-agent

api/voice · cloud · Usage-based per-minute; enterprise plans

Retell AI

Retell AI · voice-agent

api/voice · cloud · Usage-based (~$0.07+/min); enterprise plans

Synthflow

Synthflow · voice-agent

api/voice · cloud · Plans from ~$29/mo; per-minute overages

ElevenLabs Agents

ElevenLabs · voice-agent

api/voice · cloud · Included in ElevenLabs plans; per-minute credits

Deepgram Voice Agent

Deepgram · voice-agent

api/voice · cloud · Pay-as-you-go per-minute (~$0.08/min) — verify

Grok Voice Agent API

xAI · voice-agent

api/voice · cloud · $0.08/min agent audio; telephony +$0.01/min; STT $0.10-0.20/hr; TTS $4.20/M chars
VS

Head-to-head (1)

FAQ

Frequently asked

What is Vapi?

Vapi is the developer platform for voice agents: API-first orchestration of STT, LLM, TTS, and telephony so you can put an agent on a phone number in minutes — and swap every layer.

Who is Vapi for?

Developers building voice products who want full control of the stack without owning telephony plumbing.

How much does Vapi cost?

Usage-based: ~$0.05/min platform fee + model/telephony costs. List prices as checked against the vendor's pricing page on 2026-09-25; plans change often, so confirm before deciding.

Does Vapi run locally or in the cloud?

Vapi runs in the vendor's cloud. Its interfaces are an API or protocol, a live voice/phone channel.

What are alternatives to Vapi?

Other voice agent entries in the catalog: Bland AI, Retell AI, Synthflow, ElevenLabs Agents, Deepgram Voice Agent, Grok Voice Agent API. Different categories solve the same problem differently — see the Voice & phone agents category page for tradeoffs.

What should I know before adopting Vapi?

The headline ~$0.05/min is the platform fee — STT/LLM/TTS/telco stack on top; real cost at volume needs careful provider choices.