🌐 EN العربيةEnglishFrançaisDeutschहिन्दीPortuguêsРусскийEspañolTürkçe Get the free Customer Support AI guide
Browse by profession
Accounting, Bookkeeping & TaxCompliance, Audit & GRCConstructionCustomer SupportData ScienceMedicalE-commerceEducationEnergyEngineeringFinanceGaming
All 38 professions →
Collections
Full AI DirectoryFree & Open SourceAI NewsAI StatisticsBest AI deals
Company
AboutContactSubmit a toolHow we score
Browse
AI Directory Open Source AI News AI Statistics
Browse by profession
Accounting, Bookkeeping & TaxCompliance, Audit & GRCConstructionCustomer SupportData ScienceMedical All 38 professions →
Company
About Advertise Submit a tool Get the free Customer Support AI guide
العربيةEnglishFrançaisDeutschहिन्दीPortuguêsРусскийEspañolTürkçe
Overview How It Works Before & After Try It Reviews Integrations Why This Tool FAQ Pricing Top 10 Get Alerts News
AI for Customer Support & Experience

Retell AI

Automate customer support calls with AI voice agents that sound genuinely human and resolve issues on the first contact.

Deploy agents that handle complex queries, book appointments, and integrate with your existing CRM and telephony.

Best forScaling support call centers with human-like voice agents.
DifferentiatorIndustry-leading low latency (~600ms) for natural, non-robotic conversations.
ProofSWTCH case study shows a 50%+ reduction in support costs.
Explore Retell AI
Pricing on request
8.6 Zekai
Enterprise-Grade Voice Automation
AI for Customer Support & Experience
Ease of Use
7.5
Accuracy
9.3
Value
8.5
Time Saving
9.2
Low LatencyHuman-like VoiceHIPAA CompliantDrag-and-Drop BuilderCRM Integration
📊 Independently tested and scored. How we score →
✍️ Reviewed by Jad Demir · AI Tools Analyst · Updated August 6, 2026
🏷 Is this your tool? Claim this listing →
⭐ Today's SpotlightHeyDeacon★ 9.4/10Open.cx★ 9.3/10CoSupport AI★ 9.3/10Signals★ 9.3/10DeepL★ 9.3/10Sierra★ 9.2/10Fini★ 9.2/10Be the next sponsor →
Hand-scored by Zekai

Top AI for Customer Support & Experience picks

#1HeyDeacon★ 9.4/10#2Open.cx★ 9.3/10#3CoSupport AI★ 9.3/10
See all 133 AI for Customer Support & Experience tools →
⚡ Quick answer

For customer support teams looking to automate phone calls with truly human-like conversations, Retell AI is a leading choice. Its platform excels with industry-leading low latency (~600ms) and the ability to handle complex, multi-turn dialogues, which traditional IVRs cannot. This allows it to resolve issues, book appointments, and reduce costs by over 50% according to user case studies.

CategoryAI Customer Experience Automation
Best ForScaling support call centers with human-like voice agents.
Price FromPricing on request
FreeFree Trial
DifferentiatorIndustry-leading low latency (~600ms) for natural, non-robotic conversations.
ProofSWTCH case study shows a 50%+ reduction in support costs.
Rating4.3/5
📖 About Retell AI

Retell AI is a voice agent platform for customer support teams to automate phone calls. It uses LLM-based conversational AI to build, deploy, and manage voice agents that sound human, handle complex interactions, and scale to handle high call volumes.

Watch

See Retell AI in action

How It Works

Your workflow, automated

1
Build Your Agent
Use the drag-and-drop framework to design conversational flows and connect your knowledge base.
2
Test & Deploy
Leverage built-in simulation to test the agent against real-world scenarios before going live.
3
Integrate & Monitor
Connect to your telephony and CRM, then use the analytics dashboard to track performance and business impact.
Ready to automate your workflow with Retell AI?
Explore Retell AI →
Real Impact

Before & After

❌ Before

Human agents are overwhelmed with repetitive Tier-1 calls, leading to long wait times and burnout.

High agent turnover
✅ After

AI handles all routine calls instantly, 24/7, freeing agents for complex problem-solving and improving NPS.

>50% cost reduction
Prompt Templates

Try it with these prompts

Copy any prompt and paste it directly into the tool.

Automate Appointment Setting

Use Retell AI to automatically book appointments. The agent should understand user availability and confirm a time slot. [Specify available time slots] and [Provide customer contact details].

Handle Customer Service Inquiries

Deploy Retell AI to manage customer service calls. The agent needs to understand common inquiries and provide accurate information. [List common customer questions] and [Provide links to knowledge base articles].

Qualify Sales Leads

Configure Retell AI to qualify incoming sales leads. The agent should ask predefined questions to assess lead quality. [List qualification questions] and [Define criteria for a qualified lead].

Social Proof

Trusted by professionals

Ease of Use
7.5
Accuracy
9.3
Value
8.5
Time Saving
9.2

"Retell has been a game-changer for our call volume. We've automated our entire appointment scheduling process, and the AI is so natural our customers rarely notice. It's allowed us to scale without hiring a dozen new agents."

David R., CX Director · June 2026

"The low latency is the real magic here. Conversations are fluid, not the choppy, delayed experience you get with other voicebots. Our agents can now focus entirely on escalations, which has boosted team morale significantly."

Maria S., Support Ops Lead · May 2026

"The conversational quality is unmatched, but be prepared for a significant technical lift during setup. It's not plug-and-play and required dedicated developer time to get our custom functions and CRM integration working correctly."

Chris P., CX Manager · June 2026

"As a healthcare provider, HIPAA compliance was non-negotiable. Retell's secure platform gave us the confidence to automate patient intake calls, which has freed up our staff to focus on in-person care."

Sarah L., Healthcare Administrator · April 2026
See Plans & Pricing →
Connects With

Works with your existing stack

HubSpot Twilio Vonage Go High Level n8n Zapier Salesforce Avaya Genesys Five9 Amazon Connect Telnyx Make Cal.com
Setup complexity: Advanced
Retell AI is a voice agent platform for customer support teams to automate phone calls. It uses LLM-based conversational AI to build, deploy, and manage voice agents that sound human, handle complex interactions, and scale to handle high call volumes.
Comparison

How it compares

Retell AI is a complete, '3rd gen' voice agent platform, whereas a tool like Twilio Voice Intelligence provides the underlying components (like transcription and NLP) that developers use to build their own solution. Choose Retell AI when you need a faster path to deploying a fully-featured, human-like agent with a low-code framework and built-in QA. Opt for Twilio's ecosystem if your team has deep engineering resources and requires granular control to build a highly custom voice application from the ground up, integrating various APIs yourself.

You need a simpler, more developer-focused API without a full agentic framework.
Your primary use case is ultra-fast outbound calling campaigns, not complex inbound support.
You require a more transparent, usage-based pricing model for smaller projects.
The decision

Is it worth it?

Return on investment
By automating routine calls and reducing support costs by up to 50%, a team could see a positive ROI within months, even with enterprise-level pricing.
Built for
Customer Support Managers, CX Leaders, and Heads of Contact Centers in mid-market to enterprise companies.
Effort to adopt
Advanced
Compliance
Fully compliant with HIPAA, SOC2 Type II, and GDPR, making it suitable for regulated industries like healthcare and finance.
Who It's For

Why Customer Support & Experience choose this tool

🎯
Built for
Best for scaling inbound and outbound customer support operations with human-like voice AI that can handle complex, multi-turn conversations.
In-Depth Overview
For a CX leader, Retell AI moves beyond frustrating, rigid IVR systems. It's a '3rd Gen' voice AI platform built on LLMs, enabling agents that hold natural, human-like conversations. The key is its industry-leading low latency of ~600ms, which eliminates awkward pauses and allows for realistic turn-taking. This means customers can actually converse with the AI, not just bark commands at it. Proof of its effectiveness comes from case studies, like SWTCH cutting support costs by over 50%. The platform is designed for enterprise scale and reliability, featuring a drag-and-drop agentic framework to speed up deployment from months to weeks. You can connect it to your knowledge base with Streaming RAG for accurate, real-time answers and integrate directly with CRMs like Salesforce and HubSpot. Crucially, it meets enterprise security needs with HIPAA, SOC 2 Type II, and GDPR compliance, making it a viable option for automating calls even in regulated industries.

Key Use Cases

🎧
Automate 100% of Tier-1 Inbound Calls
CX Manager
Deploy an AI voice agent to handle routine support queries, appointment scheduling, and information requests 24/7. Free up human agents for high-value, complex escalations.
Up to 50% reduction in support costs
✓ Pros
Industry-leading low latency for natural, fluid conversations.
Handles complex, multi-turn interactions and unexpected user inputs.
Integrates with existing telephony (SIP trunking) and CRMs like HubSpot and Salesforce.
Strong compliance posture including HIPAA, SOC 2, and GDPR.
Case studies demonstrate significant ROI, such as 50%+ cost reduction.
· Cons
Pricing is not public, suggesting a premium, enterprise-focused cost structure.
Requires technical integration; not an out-of-the-box solution for non-technical teams.
Full benefits require connecting a knowledge base and setting up custom functions.
⚡ Editorial Verdict

Retell AI stands out with its industry-leading low latency (~600ms) and human-like voice quality, making it a powerful choice for automating complex support calls. However, its advanced capabilities and enterprise focus suggest it's a significant investment best suited for larger teams with the resources for a proper implementation.

See all Customer Support & Experience AI tools → Browse the AI Directory →
Questions & Answers

Frequently asked questions

What is the best AI voice agent for enterprise customer support?

+
Retell AI is a strong contender for enterprise customer support, offering human-like, low-latency voice agents that can handle complex calls. It's built for scale and includes key enterprise features like HIPAA/SOC2 compliance, on-prem deployment options, and integrations with systems like Salesforce and Genesys.

How can I automate inbound support calls without sounding robotic?

+
Retell AI addresses this by using proprietary voice AI orchestration with ~600ms latency, which is fast enough to enable natural turn-taking in conversation. Its voices are built from real performance data, allowing it to handle interruptions and complex dialogues far more effectively than traditional, robotic-sounding IVR systems.

Which conversational AI can handle complex customer queries over the phone?

+
Retell AI is designed to handle complex, multi-turn conversations and unexpected inputs. By leveraging Large Language Models (LLMs) and a streaming RAG capability, it can pull real-time information from your knowledge base to provide accurate answers, rather than being limited to a rigid script.

Is there a HIPAA-compliant AI call center solution?

+
Yes, Retell AI is fully compliant with HIPAA, as well as SOC2 Type II and GDPR. This makes it a suitable solution for building an AI call center in regulated industries like healthcare, where protecting patient data is critical.

Can an AI integrate with my existing phone number and CRM for support?

+
Yes. Retell AI supports integration with any telephony system through SIP trunking, allowing you to use your existing phone numbers. It also offers native and Zapier-based integrations with CRMs like HubSpot and Salesforce to update records and sync data.

How do I create an AI voice agent with Retell AI?

+
You can start by signing up for a free account to get $10 of usage credits. From the Retell dashboard, you can use their agentic framework to customize your agent, configure its behavior, and integrate it with your company's data and workflows before deploying.

Last reviewed:

Plans & Pricing

Start today

Pro
Pricing on request
Contact sales for a custom quote. A free trial with $10 in usage credits is available.
Start Pro Plan
Enterprise
Pricing on request
Tailored for teams and large organisations.
Contact Sales

Prices and features are updated regularly but can change at any time — always confirm on the official website. Some links on this page are affiliate links.

Customer Support & Experience

Top 10 AI tools in this category

#1
H
HeyDeacon
Score: 9.4
#2
L
LimeChat
Score: 9.2
#3
A
Animam
Score: 9.0
#4
M
MoonAI
Score: 9.0
#5
U
Unbabel
Score: 9.0
#6
A
Automaise
Score: 8.9
#7
L
Luzia
Score: 8.9
#8
A
Aivo
Score: 8.9
#9
M
Maqsam
Score: 8.9
#10
o
owni.chat
Score: 8.8
← Previous toolCalen AI★ 8.7/10Next tool →Regal★ 8.6/10
See all 133 AI for Customer Support & Experience tools →
Free guide

Take it with you

Getting Started with Retell AI for Customer Support
  • Understanding "3rd Gen" Voice AI vs. Legacy IVR
  • Key Features: Low Latency, Turn-Taking, and Function Calling
  • Top 3 Use Cases for a CX Team
  • Integrating with Your CRM and Telephony Stack
  • Measuring Success: Key Performance Analytics
+3 more steps inside the guide
Send me the full guide

Get Retell AI deal alerts

Be the first to know when Retell AI drops a new discount, adds features, or changes pricing.

Exclusive Retell AI discount codes
New feature announcements
Best alternative picks when pricing changes
Zero spam — unsubscribe anytime
🎉
You're subscribed!
We'll notify you when Retell AI has a new deal.
Zekai Blog

Latest AI news

AI for Customer Support
AI Chatbot Customer Service Gets Boost from Acclaro's New Solution
Aug 13, 2026
AI for Customer Support
AI Chatbot Customer Service Enhanced by SurveyMonkey's ChatGPT Plugin
Aug 13, 2026
AI for Customer Support
AI Chatbot Customer Service: KIBO Unifies AI for Commerce Operations
Aug 8, 2026
AI Directory

About Retell AI

Full Description

Retell AI is a voice agent platform for customer support teams to automate phone calls. It uses LLM-based conversational AI to build, deploy, and manage voice agents that sound human, handle complex interactions, and scale to handle high call volumes.

Editorial Verdict

Retell AI stands out with its industry-leading low latency (~600ms) and human-like voice quality, making it a powerful choice for automating complex support calls. However, its advanced capabilities and enterprise focus suggest it's a significant investment best suited for larger teams with the resources for a proper implementation.

Last reviewed:
Disclaimer
Zekai is an independent AI tools directory. We are not affiliated with, endorsed by, or officially connected to Retell AI unless clearly stated. All product names, logos, and brands are the property of their respective owners and are used for identification purposes only. The information on this page — including pricing, features, and availability — is general information, may have changed since our last review, and is not professional advice. Zekai Scores and verdicts are our editorial opinion. Some outbound links are affiliate links that may earn us a commission at no extra cost to you. Spotted outdated or incorrect information? Request a correction →
‹ Previous Tool Bland AI › Next Tool Vapi ‹ ›
All AI Tools A–Z →
Retell AI8.6Try Retell AI ↗Next tool →
⚡ Today's top 3 AI for Customer Support & Experience tools →