Retell AI vs SpeechGen.io

Comparing the features of Retell AI to SpeechGen.io

Feature
Retell AI
SpeechGen.io

Capability Features

Adjustable Pitch
Adjustable Sample Rate
48000 Hz44100 Hz24000 Hz16000 Hz12000 Hz8000 Hz
Adjustable Speed
Agent Builder
Agent Testing
API Access
Appointment Scheduling
Audio to Text
Auto-Sync Knowledge Base
Automatic Scalability
Millions of concurrent calls
Batch Calls
Branded Caller ID
Call History
Call Monitoring
Call Transfer Options
Cloud History Save
Commercial Use Allowed
DOCx to Audio Conversion
Download After Generation
Edge Case Handling
Emphasis Control
Favorites System
Global Reach
Industry Compliance
SOC 2 Type 1&2HIPAAGDPR
Intonation Adjustment
LLM-Powered
Low Latency
500ms latency
Maximum Text Length Per Query
2000000
Multi-language Support
18+ languages
Multi-Voice Feature
Multiple Deployment Channels
AI phone callsWeb callsSMSChat
Natural Language Conversations
Navigate Through IVR
No Concurrency Limits
Partial Edit Re-dubbing
Pause Control
PDF to Audio Conversion
Platform Uptime
99.99% uptime
Pronunciation Control
SSML Tag Support
Subtitle to Audio
Total Supported Languages
146
Verified Phone Numbers
Video to Text
Voice Selection
AmeliaAndrewAvaBlueBrian WhiteDanielle plusDavisElijahEmma CoxEvelynGregory plusHollyHunterIvy plusJane SmithJasonJoanna plusJoey plusJohnJustin plusKaiKendra plusKimberly plusKolbyLuna BellMatthew plusNancyOliverRogerRuth plusSalli plusScottSimon USSkylerSteffanTonyJenniferHannaKelsyArnoldEllisJackFennyBartDenAngelGloryHelenIronJerryAveryGuyAmberAnnyAshleyBrandonChristopherCoraElizabethEricJacobJennyMichelleMonicaSaraKevin plusSalliJoannaIvyKendraKimberlyMatthewJustinJoeyAda USAdam USAlessio USAlloy USAmanda USAndrew USArabella USAva USBrandon USBrian USChristopher USCora USDavis USDerek USDustin USEcho USEmma USEvelyn USFable USFlorian USGiuseppe USHyunsu USIsabella USIsidora USJenny USLewis USLola USLucien USMacerio USMarcello USMasaru USNancy USNova USOllie USOnyx USPhoebe USRemy USRyan USSamuel USSeraphina USSerena USShimmer USSteffan USThalita USTristan USVivienne USXiaochen USXiaoxiao USXiaoyu USXimena USYunfan USYunxiao USYunyi US
Voicemail Detection
YT Transcribe

Integration Features

CRM/Automation Integrations
Cal.comn8nGoHighLevelTwilioVonageOpenAI
Export Formats
mp3wavoggopus
Integrates with Any CRM
Integrates with Any Telephony
Integrates with Automation Platforms
Integrates with Databases
Telephony Integration
TwilioVonageTelnyxPlivoRingCentral
Video Software Compatibility
Adobe PremierAfter effectsAuditionDaVinci ResolveApple MotionCamtasiaiMovieAudacity
WordPress Plugin

Limitation Features

Limits by Character Count
No Desktop App Mentioned
No Mentioned Self-hosting
No Public Pricing Listed
No Subscription

Pricing Features

Audio Character Limit
4000
Free Characters With Registration
2000
Free Characters Without Registration
1000
Free Tier
Reference only, limited features
One-Time Payment Option
Pay-as-you-go Plan
Premium Voice Character Limit
2000
Pricing Per 1000 Characters
$0.08
Pricing Plan Details