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Vapi
8.5/10
"The infrastructure layer for AI voice agents—build phone bots that sound human."
Voice AI platform for building human-like AI phone agents. Create, test, and deploy voice assistants at scale.
Best for:DevelopersCall CentersSales TeamsEnterprise
Pay-per-minute usage / Enterprise plans available
Verified Tool
About Vapi
Vapi is a developer-first voice AI platform for building, testing, and deploying human-like AI voice assistants. It serves as core infrastructure for AI agents that communicate via voice, handling millions of concurrent calls with sub-500ms latency for natural conversations. Supports 100+ languages and integrates with any LLM (OpenAI, Claude, Gemini) and TTS provider (ElevenLabs, Azure, Play.ht). Features include Workflows 2.0 for visual conversation flow building, sentiment routing, dynamic branching, call transfers, in-call SMS, and DTMF keypad support. Perfect for automating inbound customer queries, outbound sales campaigns, appointment scheduling, and market research. Developers can embed voice/chat widgets or use the CLI for framework integrations (React, Python, Go).
Key Features
Human-like Voice Agents
Sub-500ms Latency
100+ Languages
Any LLM Integration
Workflows 2.0 (Visual Builder)
Call Transfers & SMS
Voice/Chat Widgets
CLI & SDK Support
The Good
- Extremely low latency
- Flexible LLM/TTS integrations
- Powerful workflow builder
- Scalable infrastructure
The Not-So-Good
- Requires technical setup
- Usage costs can add up
- Newer platform
Tool Information
Pricing ModelFreemium
Starting PricePay-per-minute usage / Enterprise plans available
CategoryAudio
Last UpdatedOct 2024
