Retell AI
audio
Build, test, and deploy production-grade AI voice agents that handle inbound and outbound phone calls.
Pricing
Paid
Rating
—
Votes
0
Head-to-head comparison
Retell AI vs Vapi
Compare Retell AI and Vapi side by side across pricing, features, ratings, pros, cons, best-fit use cases, and alternatives.
Vapi
audio
Developer platform for building, testing, and deploying real-time AI voice agents
Pricing
Freemium
Rating
—
Votes
0
Feature comparison
Feature
Retell AI
Vapi
Category
audio
audio
Pricing
Paid
Freemium
Free plan
API access
Mobile app
Browser extension
Team collaboration
Custom training
Self-hosted option
Offline mode
Multi-language support
Retell AI pros and cons
Transparent per-minute, pay-as-you-go pricing with no platform fee
Full feature access from day one, nothing locked behind higher tiers
Strong developer tooling: API, testing/simulation suite, webhooks, functions
Wide model and voice choice (GPT, Claude, ElevenLabs, Retell voices)
Note: Headline $0.07/min rate is misleading; real costs run $0.13-$0.31/min
Note: Costs stack across LLM, TTS, and telephony, making budgeting complex
Note: Enterprise plan is expensive, starting around $8,000
Vapi pros and cons
Full control over the voice stack (STT, LLM, TTS, telephony)
Low-latency, near-human real-time conversations
Flexible REST API and official SDKs for any language
Advanced features like Squads, function calling, and RAG
Note: Headline $0.05/min excludes provider costs, so real cost is much higher
Note: Pricing is hard to predict and budget across multiple vendors
Note: Steep learning curve for non-developers
Which one should you choose?
Best overall signal
Retell AI
Selected using Toolglade popularity signals such as views and votes.
Best value signal
Retell AI
Selected using free-plan availability and engagement signals.
Best for
Retell AI
- Inbound call automation
- Outbound sales and lead qualification
- AI phone support agents
- Appointment scheduling
- Developers building custom voice agent products
Vapi
- Automated phone agents
- AI receptionists and call centers
- Voice bot developers
- Custom voice pipeline builders
- Developers building custom voice bots
FAQ
Is Retell AI better than Vapi?
It depends on your use case. Compare category fit, pricing, feature availability, and ratings before choosing.
Which tool has a free plan?
Retell AI may not and Vapi may not offer a free plan based on current Toolglade data.