Retell AI is a developer-focused platform for building, deploying, and scaling real-time AI voice and chat agents for customer service, sales, and operations. It bundles speech-to-text, LLM orchestration, text-to-speech, telephony, and analytics into one API-first stack with no mandatory platform subscription.
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Features & details
Full overview from our catalog (read-only reference).
Category (short)
Voice AI / AI Phone & Chat Agents
Category
Voice AI / AI Phone & Chat Agents
Pricing (CSV)
Free Trial
Directory pricing
Freemium
Sponsored note
no
Target audience
Developers and product teams shipping production voice agents who want transparent per-minute billing and integrated telephony. Not ideal for: teams needing a simple no-code chatbot only, or organizations requiring fixed monthly SaaS pricing without usage variability.
Best for
Developers and product teams shipping production voice agents who want transparent per-minute billing and integrated telephony. Not ideal for: teams needing a simple no-code chatbot only, or organizations requiring fixed monthly SaaS pricing without usage variability.
Pricing notes
July 2026 verified at retellai.com/pricing. Pay-as-you-go: voice infra $0.055/min, TTS from $0.015/min (ElevenLabs $0.040/min), LLM pass-through from $0.003/min (GPT-5 nano) to $0.16/min (GPT-5.5). Typical production stack runs $0.09-$0.16/min all-in. Monthly add-ons: phone numbers $2/mo, extra concurrency $8/active call/mo, knowledge bases $8/KB/mo (first 10 free). Enterprise: custom pricing via sales.
Pros & cons
Editorial notes to help compare fit before opening the vendor site.
Pros
No platform fee or annual contract required
full feature access on free tier
integrated telephony
granular cost control
strong developer API and documentation
Cons
All-in per-minute costs can be unpredictable at scale
modular pricing requires careful stack tuning
enterprise compliance features gated behind sales conversation
Review notes
Context from the listing review and editorial research.
Strong G2 rating (~4.8/5). Pricing transparency is a major differentiator vs competitors requiring annual contracts. Real production costs often exceed headline $0.07/min floor once LLM, premium voices, and add-ons stack. SOC 2, HIPAA-ready.
Extended features
In-depth description and capability notes.
Pay-as-you-go voice agents at $0.07-$0.31 per minute depending on LLM, TTS, and add-ons
AI chat agents from $0.002+ per message
$10 free credits and 60 free minutes on signup; 20 concurrent calls included free
Pre-built agent templates, simulation testing, webhooks, and full API access
Modular LLM selection (GPT, Claude, Gemini) and TTS providers (ElevenLabs, Cartesia, OpenAI)
Telephony via Retell-managed numbers or BYOC/SIP trunking at $0/min from Retell
Add-ons: knowledge base (+$0.005/min), PII redaction, safety guardrails, AI QA
Enterprise tier with HIPAA/BAA, SSO, dedicated servers, and custom MSAs
Use cases
Deploy inbound/outbound AI phone agents for appointment scheduling, customer support, lead qualification, and after-hours call handling without building voice infrastructure from scratch.