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Retell AI
Compared to Whisper API
Retell AI vs Whisper API
Comparing the features of Retell AI to Whisper API
Feature
Retell AI
Whisper API
Capability Features
Agent Builder
Agent Testing
API Access
Appointment Scheduling
Auto-Sync Knowledge Base
Automatic Scalability
Millions of concurrent calls
Batch Calls
Branded Caller ID
Call History
Call Monitoring
Call Transfer Options
Edge Case Handling
Global Reach
Industry Compliance
SOC 2 Type 1&2
HIPAA
GDPR
Language/Country Support
100+ languages
Latest Whisper Model
Whisper Large V3
LLM-Powered
Low Latency
500ms latency
Multi-language Support
18+ languages
Multiple Deployment Channels
AI phone calls
Web calls
SMS
Chat
Natural Language Conversations
Navigate Through IVR
No Concurrency Limits
Non-Developer Access
Platform Uptime
99.99% uptime
Response Format Selection
json
Scale for Millions
Speaker Diarization
Speaker Labels
Summary Generation
Translation Capability
Verified Phone Numbers
Voicemail Detection
Integration Features
API Integrations
CRM/Automation Integrations
Cal.com
n8n
GoHighLevel
Twilio
Vonage
OpenAI
File Formats Supported
mp3
video
podcasts
meetings
Integrates with Any CRM
Integrates with Any Telephony
Integrates with Automation Platforms
Integrates with Databases
OpenAI API Compatibility
Programming Language Agnostic
Telephony Integration
Twilio
Vonage
Telnyx
Plivo
RingCentral
Limitation Features
No Desktop App Mentioned
No Mentioned Self-hosting
No OpenAI Affiliation
No Public Pricing Listed
Pricing Features
Free Tier
Free Transcription Hours
30
Free Trial Package
Hourly Pricing
$0.17/hour
Pricing Plan Details
Trial Period
1 month