Retell AI
AI-powered voice agent platform that automates inbound and outbound phone calls for customer service, sales, and support operations
- Also known as
- retell-ai
Available worldwide · Popular in: US, EU, GB
What is Retell AI?
An AI voice platform that handles phone calls autonomously, managing appointment booking, order status checks, lead qualification, and customer service interactions. It integrates with existing CRM systems and telephony infrastructure to maintain customer context and automatically log outcomes.
Retell AI pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
From $0.07–$0.31/minute for AI voice agents. $10 free credit. Enterprise plans available with HIPAA and SOC2 Type II compliance.
Pay-as-you-go
- free_credit
- $10
- knowledge_bases
- 10
- concurrent_calls
- 20
- Voice agents for inbound/outbound calls
- Call transfer and routing
- CRM integration (Salesforce, HubSpot)
- Post-call transcription and logging
- Custom LLM models
- SMS capabilities
- Knowledge base
- Voicemail handling
- Call screening detection
Enterprise
Contact salesCustom deployment with dedicated support, compliance, and higher concurrency
- concurrent_calls
- 50+
- HIPAA/BAA compliance
- Single Sign-On (SSO)
- Custom MSA agreement
- Custom Data Processing Agreement (DPA)
- Dedicated concurrency allocation
- All Pay-as-you-go features
Add-ons
- SMS from Retell$2/mo
- Additional Concurrency$8/concurrent_call/mo
- Knowledge Base$8/knowledge_base/mo
- Phone Number$10/phone_number/mo
What Retell AI does
The capabilities that matter for voice ai agents, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Deployment model
- No code saas platform
- Sub second latency and interruption barget in handling
- ✗
- Dynamic mid call API function execution
- ✓
- Live human handoff and call transfer logic
- ✓
- Emotion prosody and custom voice cloning
- ✓
- Inbound reception and ivr routing replacement
- ✓
- Outbound dialing and campaign management
- ✓
- Post call transcription and CRM sync
- ✓
- Voicemail detection and answering machine drops
- ✓
- Twilio vonage bring your own carrier byoc support
- ✓
- SOC2 type ii
- ✓
- HIPAA compliance for medical appointment setting
- ✓
- Pricing model
- Per minute usage based
Platform & deployment
Independently observed- CLI
- iOS
- Web
- Android
- Cloud / SaaS
Integrations (34)
Independently observed- Twilio
- Vonage
- Telnyx
- Salesforce
- HubSpot
- Zoho CRM
- Zapier
- n8n
- Make
- viaSocket
- Zendesk
- Talkdesk
- RingCentral
- ServiceTitan
- Nice
- Workable
- Go High Level
- OpenDental
- Slack
- Monday.com
- Smartsheets
- Shopify
- Stripe
- Xero
- Supabase
- Webflow
- ElevenLabs
- Minimax
- Fish Audio
- Cartesia
- OpenAI
- Google Gemini
- Anthropic Claude
Retell AI alternatives
Other voice ai agents we track, ranked by the same independent score.
- Smith.aiAI-assisted call answering and lead intake service with live agent backuplow · 37%
- VapiAI voice agent platform for building and deploying interactive voice experiences at scalehigh · 75%
- Dasha.aiA voice AI runtime platform that enables developers to build and deploy conversational AI agents with sub-second response times and full conversation control.medium · 55%
- Synthflow AIEnterprise-grade voice AI platform for automating customer phone interactions at scalehigh · 76%
- ThoughtlyAI voice agent platform for automated inbound and outbound lead engagement across multiple channels.high · 75%
- SierraConversational AI agents that drive customer value through multiple channels with outcome-based pricinglow · 41%
Compare Retell AI
Side by side against other voice ai agents, attribute by attribute, with a source on every value.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Retell AI, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Pricing transparency | 100 | 0.08 | 8.4 | ✓ |
| Capabilities | 100 | 0.05 | 4.9 | ✓ |
| Price level | 80 | 0.05 | 4.2 | ✓ |
| Security posture | 55 | 0.07 | 4.0 | ✓ |
| Integrations | 45 | 0.04 | 1.8 | ✓ |
| Reliability | 0 | 0.07 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Soc2 type ii: Yes · Pricing model: per_minute_usage_based · Deployment model: no_code_saas_platform · Post call transcription and crm sync: Yes · Dynamic mid call api function execution: Yes · Emotion prosody and custom voice cloning: Yes | mediumsource · 2026-08-25 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 35 | mediumsource · 2026-08-25 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | HqCountry: US · PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-25 · 75% |