Retell AI review

Retell AI is the strongest option for operations teams running real contact center traffic. It goes beyond scripted calls with agentic warm transfers that brief the receiving human, agents that work through phone trees and enter extensions, persistent memory of each contact across calls and texts, and a mix of deterministic and generative responses so disclosures and identity checks follow exact wording. Pay as you go costs $0.07 to $0.31 per minute depending on the model and voice, starts with $10 in free credits and includes 20 concurrent calls, simulation testing, webhooks and API access. Retell publishes component prices, such as $0.055 per minute for its voice infrastructure and $0.015 per minute for its platform voices, so you can estimate costs line by line. HIPAA with a BAA, SSO, role-based access control and 24/7 support require the Enterprise plan, which is priced by sales.

Who it is for

Contact center and ops teams that need transfers, phone trees and high concurrency

Price

Pay as you go from $0.07 to $0.31 per minute for voice agents, with $10 in free credits; Enterprise custom.

$0.07-$0.31 / min for AI Voice Agents
Quoted from the vendor pricing page on November 12, 2026.

Key features

• Agentic warm transfers that brief a human agent before connecting the caller
• Agents that work through phone trees, automated menus and extensions
• Persistent memory of each contact across calls and texts
• Simulation testing, call analytics and transcripts on pay as you go
• Webhooks and API access alongside a no-code agent studio

Strengths and weaknesses

• Strength: 20 free concurrent calls on pay as you go
• Strength: $10 in free credits with full platform access and no commitment
• Strength: Component pricing is published, from $0.055 per minute for Retell voice infrastructure
• Weakness: Per-minute cost varies with the LLM and voice chosen, up to $0.31 per minute
• Weakness: HIPAA, SSO and role-based access control are on the Enterprise plan
• Weakness: Pay as you go support is community and email only

Key facts

• Voice agent price: $0.07 to $0.31 per minute
• Free credits: $10
• Concurrent calls: 20 included on pay as you go
• Customers: 4,000+ businesses in production, per Retell AI

Where it ranks

Retell AI is No. 1 in our Best AI Voice Agent Platforms verdict.