B
BRetell AI vs Vapi
Pricing, features, platforms and who each one suits — side by side.
R
Choose Retell AI if…
- you're in its core audience: contact center teams, healthcare providers
V
Choose Vapi if…
- you're in its core audience: developers, startups building voice products
Side by side
Feature Retell AI Vapi
Pricing modelFreemiumFreemium
Starting price—$29/mo
Free plan
Free trial
API
Open source
PlatformsWeb, APIWeb, API
CompanyRetell AIVapi, Inc.
Full feature lists
R Retell AI
- No-code agent builder with API and SDK extension
- Warm, cold and two-way warm call transfers
- IVR navigation and keypad menu handling
- Batch outbound calling with DNC screening
- Branded caller ID and verified phone numbers
- Persistent contact memory across calls and texts
- Choice of LLM, TTS voices and telephony provider
- Post-call analysis, AI QA and PII redaction
V Vapi
- Configurable voice, conversation flow and telephony
- Choice of transcriber, LLM and voice providers
- Model costs passed through without markup
- Call testing and simulation before going live
- Real-time call monitoring and observability
- Conversation guardrails to reduce hallucinations
- Built-in Vapi telephony, SIP, WebSockets and WebRTC
- SOC 2, HIPAA and PCI compliance
Their home pages
What each vendor shows first: the pitch, the plans and the sign-up.
Retell AI · retellai.com
Vapi · vapi.aiWhat you'd pay
The cheapest plan that fits, per month, billed yearly where the plan offers it.
Retell AI
Pay as you go$0.07-$0.31/min (voice), $0.002+/msg (chat)
EnterpriseCustom
Vapi
No Success Package$0 to start, $0.05/min hosting
Core$29
Pro10% of hosting fee, $999/mo minimum
PremierCustom
Strengths and limitations
Retell AI
- No annual contract, billed per minute
- $10 free credits and 20 free concurrent calls
- HIPAA with BAA, SOC 2 Type 1 and 2, GDPR
- Supports multiple LLM and TTS providers, or a custom LLM
- Per-minute cost varies with chosen LLM, voice and add-ons
- Prompts over 4,000 tokens increase billed call time
- SSO, role-based access and dedicated support are Enterprise-only
Vapi
- $5 free credits and no minimum minutes
- Model provider costs passed through without markup
- Unlimited agents on every plan
- SOC 2, HIPAA and PCI compliance
- Total per-minute cost stacks hosting, model, voice and transport fees
- HIPAA add-on costs $2,000/month
- Pro package has a $999/month minimum
- Free tier is limited to 4 concurrent calls
More comparisons
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Facts from each vendor's public pages, prices checked Nov 14, 2026. Editorial policy