Quick Answer
Last verified:
High confidence

Retell AI costs $0.00 to $0.07 per min for AI Voice Agents as of July 2026, with 3 plans available. Plans: Pay-as-you-go at $0.07/min for AI Voice Agents, and Pay-as-you-go at $0.002/min for AI Voice Agents. Enterprise pricing is available on request. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: No free tier available

Retell AI offers 3 pricing tiers: Pay-as-you-go, Pay-as-you-go, Enterprise. Paid plans include Pay-as-you-go at $0.07/min for AI Voice Agents, Pay-as-you-go at $0.002/+ / msg for AI Chat Agents.

Last verified: | Sources: 1 pricing pages and reviews
Know Before You Buy — See Retell AI Plans

Retell AI lists $0.002-$0.07/min for AI Voice Agents, but hidden costs like implementation and support add to the total as of July 2026. Key hidden costs: llm costs, telephony costs, premium voices. Verified from 1 sources by CostBench.

Hidden Costs Breakdown

1

LLM Costs

high addon

Costs for Large Language Models vary from approximately $0.003/min for lightweight models to $0.08/min for advanced models, and using a 'Fast Tier' can increase these costs by 1.5 to 2 times.

industry

Real-world production costs, encompassing the voice engine, Large Language Model (LLM), and telephony, generally range from $0.11 to $0.15 per minute for standard setups and can reach $0.13 to $0.31 per minute or even $0.20+ per minute for premium configurations utilizing advanced LLMs and high-quality voices like ElevenLabs.

2

Telephony Costs

medium addon

Retell AI's managed Twilio integration costs approximately $0.015/min, plus a phone number rental fee of $2/month per number.

industry

Telephony Costs: Retell AI's managed Twilio integration costs approximately $0.015/min, plus a phone number rental fee of $2/month per number.

3

Premium Voices

medium addon

Utilizing high-quality voice providers like ElevenLabs can increase the voice engine rate to $0.08/min or more.

industry

Premium Voices: Utilizing high-quality voice providers like ElevenLabs can increase the voice engine rate to $0.08/min or more.

4

Concurrency Fees

medium overage

Beyond the included 20 concurrent calls, additional capacity costs $8 per concurrent call slot per month.

industry

Concurrency Fees: While 20 concurrent calls are typically included for free, additional capacity costs $8 per concurrent call slot per month.

5

Knowledge Base Fees

low addon

After the first 10 free knowledge bases, each additional knowledge base costs $8.00/month.

industry

Knowledge Base Fees: The first 10 knowledge bases are free; beyond that, each additional knowledge base costs $8.00/month.

6

AI Quality Assurance

low overage

After the initial 100 free minutes, AI QA costs $0.10/min.

industry

AI Quality Assurance: After the first 100 free minutes, AI QA costs $0.10/min.

7

Hold Time and Silence

medium overage

Retell AI bills for the entire call duration, including silence and hold music, because speech-to-text remains active.

industry

Hold Time and Silence: Retell AI bills for the entire call duration, including silence and hold music, as speech-to-text remains active.

8

Engineering and Maintenance Overhead

high implementation

As a developer-oriented platform, teams without in-house engineers may incur additional time and cost for configuration, testing, and optimization, with integrations ranging from $2,500-$5,000 for simple to $40,000-$95,000 for complex healthcare deployments.

industry

Engineering and Maintenance Overhead: Retell AI is a developer-oriented platform, meaning teams without in-house engineers may face additional time and cost for configuration, testing, and optimization.

9

Compliance Infrastructure

high compliance

For healthcare deployments requiring HIPAA compliance, these costs can add 20-40% to the base pricing.

industry

Compliance Infrastructure: For healthcare deployments requiring HIPAA compliance, these costs can add 20-40% to the base pricing.

10

Branded Caller ID

low addon

This add-on costs $0.10/call.

industry

Branded Caller ID: This add-on costs $0.10/call.

11

PII Removal

low addon

Automatically redacting personal data costs $0.01/min.

industry

PII Removal: Automatically redacting personal data costs $0.01/min.

12

Verified Phone Numbers

low addon

While a basic phone number is $2/month, a verified number to avoid spam filters can cost up to $100/month.

industry

Verified Phone Numbers: While a basic phone number is $2/month, a verified number to avoid spam filters can cost up to $100/month.

Frequently Asked Questions

01 What hidden costs should I budget for with Retell AI?

Beyond the license fee, budget for: LLM Costs ($0.003/min to $0.08/min); Telephony Costs ($0.015/min + $2/month per number); Premium Voices ($0.08/min); Concurrency Fees ($8 per concurrent call slot per month); Knowledge Base Fees ($8.00/month); AI Quality Assurance ($0.10/min); Engineering and Maintenance Overhead ($2,500-$95,000); Compliance Infrastructure (20-40%); Branded Caller ID ($0.10/call); PII Removal ($0.01/min); Verified Phone Numbers (up to $100/month). Exact totals depend on your deployment size and negotiated terms.

02 Does Retell AI charge for implementation?

Retell AI implementation is not included in the license cost. As a developer-oriented platform, teams without in-house engineers may incur additional time and cost for configuration, testing, and optimization, with integrations ranging from $2,500-$5,000 for simple to $40,000-$95,000 for complex healthcare deployments.. Estimated impact: $2,500-$95,000.

03 How much does Retell AI support cost?

Premium support pricing for Retell AI depends on your tier and contract terms. See the sourced cost breakdown above for any verified figures we have.

04 Are there overage or storage costs with Retell AI?

Beyond the included 20 concurrent calls, additional capacity costs $8 per concurrent call slot per month.. Estimated impact: $8 per concurrent call slot per month.

05 What add-ons cost extra with Retell AI?

Add-on pricing for Retell AI varies by feature. The sourced cost breakdown above lists any verified add-on costs we have.

Now You Know the Real Cost — See Retell AI Plans

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Prices and terms change; verify against the live pricing page.

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