Retell AI
Composable voice agent infrastructure — BYO LLM and TTS, SOC 2 included, HIPAA-ready
Overall score
About
Retell AI is voice agent infrastructure that lets you compose your own pipeline — pick the LLM (GPT, Claude, Gemini), pick the TTS engine, plug in Twilio or Vonage for telephony, and pay only for what you use. Compliance posture is unusually strong for a startup-tier voice platform: SOC 2 Type II is included on the pay-as-you-go plan, not gated behind enterprise contracts.
Best for: Teams that want voice agent infrastructure rather than a bundled product — pick your LLM, your TTS, your telephony, and Retell stitches it together. The strong compliance posture (SOC 2 included on PAYG) makes it the cleaner pick over Vapi for regulated SMBs.
Pricing
Pay-as-you-go
- Monthly
- Free
- Annual /mo
- Free
- Billing
- usage
- Notes
- Voice AI: $0.07-$0.31/min combined;Chat AI: $0.002+/message;Retell voice infrastructure: $0.055/min;TTS: $0.015-$0.040/min;Phone numbers: $2/mo;Concurrency add-on: $8/mo per concurrent call;$10 free credits;20 free concurrent calls;Full platform features;SOC 2 Type II · Pay-as-you-go is the only self-serve tier. No feature gating between PAYG and enterprise.
Enterprise
- Monthly
- n/a
- Annual /mo
- n/a
- Billing
- flat
- Notes
- Custom voice and chat agent pricing;HIPAA BAA;Custom MSA/DPA;Dedicated support · Contact sales — pricing not published.
| Tier | Monthly | Annual /mo | Billing | Notes |
|---|---|---|---|---|
| Pay-as-you-go | Free | Free | usage | Voice AI: $0.07-$0.31/min combined;Chat AI: $0.002+/message;Retell voice infrastructure: $0.055/min;TTS: $0.015-$0.040/min;Phone numbers: $2/mo;Concurrency add-on: $8/mo per concurrent call;$10 free credits;20 free concurrent calls;Full platform features;SOC 2 Type II · Pay-as-you-go is the only self-serve tier. No feature gating between PAYG and enterprise. |
| Enterprise | n/a | n/a | flat | Custom voice and chat agent pricing;HIPAA BAA;Custom MSA/DPA;Dedicated support · Contact sales — pricing not published. |
Key features
- Composable pipeline (any LLM, any TTS, any telephony)
- SOC 2 Type II on the pay-as-you-go plan
- HIPAA-ready with BAA on enterprise
- $10 free credits + 20 concurrent calls on signup
- Per-component metered pricing (transparent)
- Knowledge base add-on for RAG-style answers
- PII removal add-on
- Public API and detailed docs
Integrations
Trust & compliance
- Stage range
- Seed → Growth
- Founded
- 2023
- Status
- active
- SOC 2
- yes
- GDPR
- unknown
- Data residency
- unknown
- External rating
- n/a
- Last verified
- Jun 2026
Reviews
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