The Enterprise Alternative to Retell AI for Performance Marketing
Retell AI is a developer toolkit for building voice bots. Clerk AI is an enterprise platform for performance marketing teams who need outbound voice + RCS agents with built-in TCPA compliance - no engineering team required.
What is Retell AI?
Retell AI is a developer-focused platform for building AI phone agents via APIs. It offers modular voice components where you pick your LLM, voice engine, and telephony provider. It's built for engineers who want granular control over voice agent infrastructure, with ~600ms response times across 31+ languages.
Pricing: Starts at $0.07/min for voice alone, but real-world costs reach $0.13-$0.31/min with LLM, telephony, and knowledge base fees. Enterprise plans start at $0.05+/min base but total $1,200-$1,800/month for 10,000 minutes. Per-minute billing makes costs unpredictable at scale.
- Developer-friendly with granular API control over voice components
- Low latency (~600ms) with multi-turn conversation support
- Supports 31+ languages with native-quality speech
- Modular architecture lets you bring your own LLM and telephony
- Free tier with $10 in credits to get started
- Developer-only - requires engineering resources to set up and maintain
- Voice-only platform - no SMS, RCS, WhatsApp, or any messaging channel
- Per-minute pricing becomes unpredictable at high outbound volumes
- No built-in TCPA compliance, DNC management, or consent tracking
- No no-code builder - every workflow requires API integration
- Not built for performance marketing use cases like lead qualification at scale
Clerk Chat vs Retell AI
| Feature | Clerk Chat | Retell AI |
|---|---|---|
| Pricing model | Credit-based (from Free) | $0.07-$0.31/min |
| Target user | Marketing & ops teams | Developers |
| Outbound voice | ||
| RCS messaging | ||
| SMS/MMS | ||
| No-code builder | ||
| TCPA compliance | ShieldLayer (built-in) | |
| Voicemail detection | TrueReach (97%) | |
| iOS call screening | ScreenSense | |
| Cross-channel memory | OmniMemory | |
| CRM integrations | Native (Salesforce, HubSpot) | Via API |
| 10DLC registration | Managed | N/A |
| Setup time | Minutes (no-code) | Days-weeks (requires devs) |
Common Retell AI pain points
Why teams switch from Retell AI
Built for performance marketing, not developers
Launch outbound voice + RCS campaigns without writing code. Marketing teams build, test, and iterate on agent workflows using a visual builder and natural language.
Credit-based pricing that scales predictably
No per-minute surprises. Buy credits and use them across voice, SMS, and RCS. Know your campaign costs before you launch.
Outbound voice + RCS + SMS in one platform
When a call goes to voicemail, ScreenSense detects it and triggers a branded RCS follow-up automatically. The lead stays warm across channels.
TCPA compliance is the architecture, not an add-on
ShieldLayer enforces calling windows, manages consent, checks DNC lists, and handles NRSC scrubbing in real time across every channel. SOC 2 Type II and HIPAA certified.
Cross-channel memory that never forgets
OmniMemory persists context across voice, RCS, SMS, and WhatsApp. A lead qualified on a call stays qualified when they respond to an RCS message.
Ready to switch from Retell AI?
Start for free with credit-based pricing. No per-minute surprises, no engineering team required.