---
title: "Retell AI vs Vapi: Which is Better in 2026? | App Stack Builder"
description: "Retell AI vs Vapi compared for 2026 — pricing, free tiers, features, pros & cons. See which ai voice agents tool is the better fit for your startup."
source: https://appstackbuilder.com/compare/retell-ai-vs-vapi
retrieved: 2026-10-14
---

![](https://www.google.com/s2/favicons?domain=retellai.com&sz=128)

vs

![](https://www.google.com/s2/favicons?domain=vapi.ai&sz=128)

# Retell AI vs Vapi: Which is Better in 2026?

AI Voice Agents

Choosing between [Retell AI](https://appstackbuilder.com/tools/retell-ai) and [Vapi](https://appstackbuilder.com/tools/vapi)? Both are popular ai voice agents tools. Below we compare them on pricing, free tiers, features, and pros & cons so you can pick the right fit for your stack.

Quick verdict

Both Retell AI and Vapi are strong ai voice agents choices. The right pick comes down to your specific feature needs, existing stack, and team preferences.

## Retell AI vs Vapi — Side by Side

|                | Retell AI                                | Vapi                                     |
| -------------- | ---------------------------------------- | ---------------------------------------- |
| Category       | AI Voice Agents                          | AI Voice Agents                          |
| Pricing        | Usage-based                              | Usage-based                              |
| Starting price | Pay-as-you-go                            | Pay-as-you-go                            |
| Free tier      | —                                        | —                                        |
| Rating         | 4.5                                      | 4.5                                      |
| Best for       | AI Voice Agents — voice-ai, phone-agents | AI Voice Agents — voice-ai, phone-agents |

## Pros & Cons

![](https://www.google.com/s2/favicons?domain=retellai.com&sz=128)

[Retell AI](https://appstackbuilder.com/tools/retell-ai)

* ✓Transparent per-component billing
* ✓No platform fee
* ✓$10 free credit and no contract
* ✗Add-ons stack up per minute
* ✗Premium voices cost almost 3x standard
* ✗Less low-level control than LiveKit

![](https://www.google.com/s2/favicons?domain=vapi.ai&sz=128)

[Vapi](https://appstackbuilder.com/tools/vapi)

* ✓Widest model and voice choice
* ✓Strong developer API
* ✓$0 model markup with your own keys
* ✗The $0.05 sticker excludes models and telephony
* ✗Real cost depends heavily on configuration
* ✗More setup than all-in-one platforms

## Key Features Compared

### Retell AI

* ✓$10 free credits to start
* ✓Visual agent builder
* ✓Phone and web calls

### Vapi

* ✓Bring your own model keys
* ✓Phone numbers and web calls
* ✓Tool calling during calls

### Choose Retell AI if…

* ✓Transparent per-component billing
* ✓No platform fee
* ✓$10 free credit and no contract

[Retell AI review & pricing ](https://appstackbuilder.com/tools/retell-ai)

### Choose Vapi if…

* ✓Widest model and voice choice
* ✓Strong developer API
* ✓$0 model markup with your own keys

[Vapi review & pricing ](https://appstackbuilder.com/tools/vapi)

## Frequently Asked Questions

Is Retell AI better than Vapi?⌄

Both Retell AI and Vapi are strong ai voice agents choices. The right pick comes down to your specific feature needs, existing stack, and team preferences.

What is the difference between Retell AI and Vapi?⌄

Retell AI — Voice agent platform with no platform fee: each component (voice infra, TTS, LLM, telephony) is billed separately per minute. Vapi — Developer platform for AI phone and voice agents: you choose the speech, LLM and voice models, and Vapi orchestrates the call. Both are ai voice agents tools; the comparison table above breaks down pricing, free tiers, and what each is best for.

Retell AI vs Vapi: which is cheaper?⌄

Retell AI pricing: Usage-based. Vapi pricing: Usage-based. Confirm current pricing on each tool's official site, as plans change.

Which is rated higher, Retell AI or Vapi?⌄

In our catalog, Retell AI rates 4.5 out of 5 and Vapi rates 4.5 out of 5 — they are evenly matched.

See more options in our guide to the [best ai voice agents tools for startups](https://appstackbuilder.com/categories/voice-agents).

[In-depth guideBest AI Voice Agent Platforms 2026: Vapi vs Retell vs LiveKit vs ElevenLabs vs BlandEvery voice platform advertises a per-minute price that isn't what you actually pay. True all-in cost, real-world latency, self-hosting, and compliance compared across the five that matter.](https://appstackbuilder.com/blog/best-ai-voice-agent-platforms-2026)

## Still not sure which to pick?

Get a free, AI-powered tech stack — including the best ai voice agents pick for your budget and team — in 60 seconds.

[Build my stack free ](https://appstackbuilder.com/build-stack)