Cloud TTS vs Retell AI

Comparing the features of Cloud TTS to Retell AI

Feature
Cloud TTS
Retell AI

Capability Features

Adjustable Speed
Adjustable Volume
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
Cloud-Based TTS
Edge Case Handling
Export Audio Files
File Input Support
Global Reach
Industry Compliance
SOC 2 Type 1&2HIPAAGDPR
Karaoke-Style Highlighting
Language List
Norwegian Bokmål (Norway)American EnglishEuropean SpanishChinese (China)Russian (Russia)Arabic (Saudi Arabia)French (France)German (Germany)Afrikaans (South Africa)Amharic (Ethiopia)Arabic (United Arab Emirates)Arabic (Bahrain)Arabic (Algeria)Arabic (Egypt)Arabic (Iraq)Arabic (Jordan)Arabic (Kuwait)Arabic (Lebanon)Arabic (Libya)Arabic (Morocco)Arabic (Oman)Arabic (Qatar)Arabic (Syria)Arabic (Tunisia)Arabic (Yemen)Azerbaijani (Azerbaijan)Bulgarian (Bulgaria)Bangla (Bangladesh)Bangla (India)Bosnian (Bosnia & Herzegovina)Catalan (Spain)Czech (Czechia)Welsh (United Kingdom)Danish (Denmark)Austrian GermanSwiss High GermanGreek (Greece)Australian EnglishCanadian EnglishBritish EnglishEnglish (Hong Kong)English (Ireland)English (India)English (Kenya)English (Nigeria)English (New Zealand)English (Philippines)English (Singapore)English (Tanzania)English (South Africa)Spanish (Argentina)Spanish (Bolivia)Spanish (Chile)Spanish (Colombia)Spanish (Costa Rica)Spanish (Cuba)Spanish (Dominican Republic)Spanish (Ecuador)Spanish (Equatorial Guinea)Spanish (Guatemala)Spanish (Honduras)Mexican SpanishSpanish (Nicaragua)Spanish (Panama)Spanish (Peru)Spanish (Puerto Rico)Spanish (Paraguay)Spanish (El Salvador)Spanish (United States)Spanish (Uruguay)Spanish (Venezuela)Estonian (Estonia)Persian (Iran)Finnish (Finland)Filipino (Philippines)French (Belgium)Canadian FrenchSwiss FrenchIrish (Ireland)Galician (Spain)Gujarati (India)Hebrew (Israel)Hindi (India)Croatian (Croatia)Hungarian (Hungary)Indonesian (Indonesia)Icelandic (Iceland)Italian (Italy)Japanese (Japan)Javanese (Indonesia)Georgian (Georgia)Kazakh (Kazakhstan)Khmer (Cambodia)Kannada (India)Korean (South Korea)Lao (Laos)Lithuanian (Lithuania)Latvian (Latvia)Macedonian (North Macedonia)Malayalam (India)Mongolian (Mongolia)Marathi (India)Malay (Malaysia)Maltese (Malta)Burmese (Myanmar [Burma])Nepali (Nepal)FlemishDutch (Netherlands)Polish (Poland)Pashto (Afghanistan)Brazilian PortugueseEuropean PortugueseRomanian (Romania)Sinhala (Sri Lanka)Slovak (Slovakia)Slovenian (Slovenia)Somali (Somalia)Albanian (Albania)Serbian (Serbia)Sundanese (Indonesia)Swedish (Sweden)Swahili (Kenya)Swahili (Tanzania)Tamil (India)Tamil (Sri Lanka)Tamil (Malaysia)Tamil (Singapore)Telugu (India)Thai (Thailand)Turkish (Türkiye)Ukrainian (Ukraine)Urdu (India)Urdu (Pakistan)Uzbek (Uzbekistan)Vietnamese (Vietnam)Chinese (China, LIAONING)Chinese (China, SHAANXI)Chinese (Hong Kong)Chinese (Taiwan)Zulu (South Africa)
LLM-Powered
Low Latency
500ms latency
Mobile Friendly
Multi-language Support
18+ languages
Multiple Deployment Channels
AI phone callsWeb callsSMSChat
Natural Language Conversations
Navigate Through IVR
No Concurrency Limits
Platform Uptime
99.99% uptime
Supported Language List
140
Text Input
User Preferences Persistence
User-Friendly Interface
Verified Phone Numbers
Voice Selection
Microsoft AvaMultilingual Online (Natural)Microsoft AndrewMultilingual Online (Natural)Microsoft EmmaMultilingual Online (Natural)Microsoft BrianMultilingual Online (Natural)Microsoft Ava Online (Natural)Microsoft Andrew Online (Natural)Microsoft Emma Online (Natural)Microsoft Brian Online (Natural)Microsoft Ana Online (Natural)Microsoft Aria Online (Natural)Microsoft Christopher Online (Natural)Microsoft Eric Online (Natural)Microsoft Guy Online (Natural)Microsoft Jenny Online (Natural)Microsoft Michelle Online (Natural)Microsoft Roger Online (Natural)Microsoft Steffan Online (Natural)
Voicemail Detection

Integration Features

API Availability
CRM/Automation Integrations
Cal.comn8nGoHighLevelTwilioVonageOpenAI
Integrates with Any CRM
Integrates with Any Telephony
Integrates with Automation Platforms
Integrates with Databases
Telephony Integration
TwilioVonageTelnyxPlivoRingCentral
Third-Party API Integration

Limitation Features

Ads
No Desktop App Mentioned
No Mentioned Self-hosting
No Public Pricing Listed
Usage Limits
Not specified

Pricing Features

Free Tier
Pricing Plan Details
None
Trial Period