Outspeed vs iSpeech TTS & Speech API

Comparing the features of Outspeed to iSpeech TTS & Speech API

Feature
Outspeed
iSpeech TTS & Speech API

Capability Features

API Requests per Month
100000000
Cloud and Embedded TTS
Create IVR Prompts
Custom Voice Cloning
Developer Signups
80000
Documentation Available
Emotive AI Voice
High Concurrency
Low Latency
Minutes Served
1M+
Multi-language Support
Natural Prosody and Emotion
Open Source SDKs
Quick Integration
Real-Time Voice Generation
Scalable Platform
SDK Availability
Simple API
Speech Rate Adjustment
SlowRegularFast
Speech Recognition
Supported Language List
US EnglishUK EnglishAustralian EnglishUS SpanishChineseHong Kong ChineseTaiwan ChineseJapaneseKoreanCanadian EnglishHungarianBrazilian PortugueseEuropean PortugueseEuropean SpanishEuropean CzechEuropean DanishEuropean FinnishEuropean FrenchEuropean NorwegianEuropean DutchEuropean PolishEuropean ItalianEuropean TurkishEuropean GreekEuropean GermanRussianSwedishCanadian FrenchArabic
Talking Stickers
Text to Speech
TTS Voice
Unlimited Use
Voice for AI Companions
White Glove Support

Integration Features

API Integrations
Audiobook Support
Chrome Extension
Connected Vehicle Integration
Mobile Integration
SAPI Integration
SDK Integration

Limitation Features

No Explicit Usage Quotas
Registration Required for Downloads
TTS for Non-Commercial Use Only

Pricing Features

Free Tier
IVR Prompts Free Sample