Vapi Review: Features, Pricing & Alternatives

What is Vapi?

Vapi is a developer platform for building voice AI agents that hold real phone and web conversations. You connect a speech-to-text model, a large language model and a voice, give the agent a prompt and tools, and Vapi handles the hard real-time parts: streaming audio, turn-taking, interruptions and telephony. Teams use it for support lines, booking, reminders and lead qualification.

Vapi is made by Vapi, Inc., led by co-founder and CEO Jordan Dearsley. In May 2026 the company raised a $50 million Series B led by Peak XV, bringing total funding to $72 million, according to SiliconANGLE. At that point Vapi said it had passed 1 billion calls and more than 1 million developers. Amazon Ring is a named customer, and the company reports its strongest traction in financial services, healthcare, insurance and automotive.

What sets Vapi apart is its bring-your-own-stack approach. It supports more than 30 integrations, including models from OpenAI, Anthropic, Google and Groq, and voices from providers such as ElevenLabs and Deepgram, with provider costs passed through at cost. Vapi now also sells optional success packages (Core, Pro and Premier) that add concurrency, retention and support on top of usage billing.

Key features of Vapi

• Model choicePick your own transcriber, LLM and voice from 30+ integrations, or bring your own API keys. Model usage is passed through at cost.
• Telephony and SIPBuy Vapi phone numbers or connect Twilio or your own SIP trunk. Vapi’s own telephony and SIP transport is listed as free.
• Tools and function callingAgents can call your APIs during a conversation to look up orders, book appointments or update a CRM such as Salesforce or HubSpot.
• Low-latency conversationStreaming audio with interruption handling and cited average latency under 500ms.
• Monitoring and analyticsReal-time call monitoring, transcripts and call logs, with plan-based data retention.
• Enterprise securityVapi lists SOC 2, HIPAA and PCI compliance, plus SSO, RBAC and guardrails. HIPAA-eligible data handling is a paid add-on.

Who is Vapi best for?

• Developers and AI engineers who want full control over models, prompts and call logic through an API.
• Voice AI agencies that build and run phone agents for many clients and need several organizations and phone numbers.
• Enterprise support teams with in-house engineering that want to automate high call volumes with SLAs and reserved capacity.
• Startups testing a voice product cheaply with free credits and per-minute billing.

Popular ways to use Vapi

• Inbound support line: answer common questions 24/7 and transfer complex calls to a human agent.
• Appointment booking: check calendar availability and confirm bookings during the call.
• Outbound reminders: call customers about appointments, renewals or overdue actions.
• Lead qualification: ask screening questions and push results into a CRM.
• In-app voice assistant: add a voice agent to a website or mobile app with Vapi’s SDKs.

Vapi pricing (October 2026)

Per-minute cost is the $0.05 hosting fee plus pass-through charges for transcription, the LLM, the voice and any third-party telephony (Twilio inbound is listed at $0.008/min). Prices are from Vapi’s pricing page in October 2026.

Vapi pros and cons

How to get started with Vapi

1. Sign up at vapi.ai and use the $5 free credits.
2. Create an assistant, write a system prompt and choose a transcriber, model and voice.
3. Attach a Vapi phone number or connect Twilio or your SIP trunk.
4. Add tools so the agent can call your APIs or calendar, then test calls in the dashboard.
5. Review transcripts, refine the prompt and upgrade when you need capacity.

Tips to get better results from Vapi

• Estimate cost per minute for your exact model and voice choices before scaling.
• Start with a narrow task, such as booking, before handling open-ended support.
• Set a clear handoff to a human for complaints and edge cases.
• Check concurrency limits against peak call volume.

Vapi vs alternatives

Vapi’s closest rival is Retell AI, which offers a more guided builder, bundled per-minute pricing and 20 free concurrent calls, making it easier for non-developers. Vapi gives more control over the model stack and is often preferred by engineering teams. ElevenLabs also offers a voice agents platform built around its own voices.

If you need a full customer service suite rather than a voice-only platform, Intercom Fin, Sierra and Decagon cover chat, email and voice with less building required. For no-code conversation design across channels, Voiceflow is another option. See all best AI customer support tools.

Our verdict: is Vapi worth it?

Vapi FAQs

Pricing and features change often. Details on this page were last reviewed in October 2026. Always confirm current plans on the official Vapi website.