Retell AI
Build and deploy AI voice agents for calls.
Retell AI provides infrastructure to build low-latency conversational voice agents for inbound/outbound phone calls, with call analytics and integrations. Usage-based pricing with free credits.
About Retell AI
Retell AI is one of 13 ai agents tools in our directory. It's positioned for AI call centers, appointment/sales calls.
With a free tier, Retell AI stands out in ai agents — 11 of 13 tools in this category offer free access. The free plan is often limited in features or users, so verify that trial access covers your use case.
Key capabilities include Conversational voice agents, Low-latency calls, Call analytics. These are standard in modern ai agents platforms. Evaluate whether the tool's depth in each area matches your plant's needs and technical maturity.
Best for: AI call centers, appointment/sales calls, voice support. When choosing between similar tools, validate that Retell AI has integrations with your existing systems (data historians, SCADA, ERP) and that support covers your region.
Key features
- Conversational voice agents
- Low-latency calls
- Call analytics
- CRM/telephony integrations
- No-code + API
Pros
- Fast voice agents
- Analytics
- No-code option
Cons
- Per-minute pricing
- Tuning required
Alternatives to Retell AI
Vapi
Developer platform to build voice AI agents (phone calls).
Cartesia
Ultra-low-latency streaming text-to-speech for real-time voice agents
See all Retell AI alternatives →
Compare Retell AI
Retell AI FAQ
Is Retell AI free?
Retell AI has a free tier you can start with; paid plans start from Usage-based (per minute).
How much does Retell AI cost?
Retell AI pricing starts from Usage-based (per minute). Check the official site for current plans.
What are the best alternatives to Retell AI?
Top alternatives to Retell AI include Vapi, Cartesia.
What is Retell AI best for?
Retell AI is best for AI call centers, appointment/sales calls, voice support.
Reviewed by the ToolGlance editorial team · Last updated 2026-06-12
How we rate: ToolGlance scores combine pricing, core features, user-review signals and update frequency, compiled from public sources and vendor documentation — see our methodology. Figures are indicative and change often; always verify pricing and features on the vendor site before buying. Last updated 2026-06-12. Compiled by the ToolGlance editorial team.