AssemblyAI vs iSpeech TTS & Speech API

Comparing the features of AssemblyAI to iSpeech TTS & Speech API

Feature
AssemblyAI
iSpeech TTS & Speech API

Capability Features

API Requests per Month
100000000
Auto-Language Detection
Cloud and Embedded TTS
Create IVR Prompts
Custom Voice Cloning
Developer Signups
80000
Industry Leading Accuracy
Keyterms Prompting
No-Code Playground
Open Source SDKs
Preferred by End Users
Preferred by 73% of end users
Reduced Hallucinations
Up to 30% less
Scalable Platform
SDK Availability
Smart Formatting
Speaker Diarization
Speech Rate Adjustment
SlowRegularFast
Speech Recognition
Speech Understanding
Speech-to-Text
Supported Audio Types
Pre-recorded and streaming audio
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

Integration Features

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

Limitation Features

No Explicit Feature Limits
No Throttling
Registration Required for Downloads
TTS for Non-Commercial Use Only

Pricing Features

Free API Trial
Free Tier
IVR Prompts Free Sample
No Contracts
Pay as you go pricing