ChatTTS vs Unreal Speech

Comparing the features of ChatTTS to Unreal Speech

Feature
ChatTTS
Unreal Speech

Capability Features

Asynchronous Requests
Community Support
Continuous Improvement
Controllability and Security
Dashboard Access
Detailed Documentation
Dialog Task Optimization
Easy to Use
Fine-tuning Supported
Full Model Training Hours
100000
High-Fidelity Speech Synthesis
Max Audio Duration
10 hours
Max Monthly Characters
7000000000
Multilingual Support
ChineseEnglish
Open Source
Open Source Model Training Hours
40000
Per-sentence Timestamps
Per-word Timestamps
Production Ready Infrastructure
Sample Rate for Audio Output
24000
Streaming Endpoint
Streaming Latency
0.3s
Supported Audio Codecs
libmp3lamepcm_mulaw
Supported Bitrates
320k256k192k128k96k64k48k32k16k
Supported Language List
US EnglishUK EnglishMandarin ChineseHindiSpanishPortugueseJapaneseFrenchItalian
Supported Voices
48
Synchronous Requests
Text to Speech
Text-to-Speech API
/stream/speech/synthesisTasks/streamWithTimestamps
Uptime SLA
99.9%
Usage Commercial Rights
Voice Customization Options
Voice Parameter Control
SpeedPitch
WebSocket Streaming

Integration Features

API Documentation
API Integration
PythonNode.jsReact NativeBash
API Integrations
Gradio Demo Integration
Platform Compatibility
Web applicationsMobile appsDesktop softwareEmbedded systems
PyTorch Dependency
SDK Programming Language Support
Multiple programming languages
Sign In Methods
GoogleEmail
Supported Export Formats
MP3PCM µ-law

Limitation Features

Attribution Requirement
Free plan requires attribution
Max Characters /speech
3000
Max Characters /stream
1000
Max Characters /synthesisTasks
500000
Not All Languages Supported
Requires Significant Compute
High computational resources needed
Speech Quality Depends on Input
Varies with text complexity and length
Voice Cloning

Other Features

Affiliate Program
Comparison to Competitors
AmazonMicrosoftGoogleElevenLabsPlay.ht

Pricing Features

Additional Usage Price
Basic - $16 per 1M charactersPlus - $12 per 1M charactersPro - $10 per 1M charactersEnterprise - $8 per 1M characters
Elite Plan Quota
625000000
Enterprise Plan Price
$4999/month
Free Characters Limit
250000
Free Plan Rollover
Free Tier
No Explicit Paid Plans Shown
Paid Plan Rollover
Subscription Plans
BasicPlusProEnterprise
Trial Period