Hume AI vs iSpeech TTS & Speech API

Comparing the features of Hume AI to iSpeech TTS & Speech API

Feature
Hume AI
iSpeech TTS & Speech API

Capability Features

API Requests per Month
100000000
Cloud and Embedded TTS
Conversational AI
Create IVR Prompts
Custom Voice Cloning
Developer Signups
80000
Emotion Instruction
Game and AI Character Use Case
High Quality Voice
Languages Supported
EnglishJapaneseKoreanSpanishFrenchPortugueseItalianGermanRussianHindiArabic
Latency
<200ms
LLM-Powered TTS
Media Creation Use Case
Multimodal AI
Open Source SDKs
Phone Call Use Case
SDK Availability
Speech Rate Adjustment
SlowRegularFast
Speech Recognition
Speech-to-Speech API
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
Voice Cloning
Voice Design

Integration Features

API Integration With LLMs
HumeClaude Sonnet 4.5Grok 4 FastGPT 5+20 more
Audiobook Support
Chrome Extension
Connected Vehicle Integration
Developer SDKs
Python SDKTypescript SDKSwift SDKReact SDKC# SDK
Mobile Integration
SAPI Integration

Limitation Features

Registration Required for Downloads
Text Input Limit
500
TTS for Non-Commercial Use Only

Pricing Features

Free Tier
IVR Prompts Free Sample