ChatTTS vs UntitledPen

Comparing the features of ChatTTS to UntitledPen

Feature
ChatTTS
UntitledPen

Capability Features

AI Writing Commands
rewritepolishimprove flowtone
Audio Download Quality Free Plan
128 kbps, 44.1 kHz
Audio Download Quality Paid Plans
Up to 192 kbps, 44.1 kHz
Audio Exports
Community Support
Continuous Improvement
Controllability and Security
Customizable Voice Tone
Detailed Documentation
Dialog Task Optimization
Easy to Use
File Upload Support
Fine-tuning Supported
Full Model Training Hours
100000
High-Fidelity Speech Synthesis
Mini Demo Available
Multilingual Support
ChineseEnglish
Natural Voice Generation
Notion-like Smart Editor
Open Source
Open Source Model Training Hours
40000
Sample Rate for Audio Output
24000
Smart Transcription
Smart Writing Assistant
Speech to Text
Studio Mode
Text to Speech
Voice Customization Options
Voice Editor
Voice Types
AlloyAshBalladCoralEchoFableNovaOnyxSageShimmerVerse

Integration Features

API Integrations
Gradio Demo Integration
Integrations Information
Platform Compatibility
Web applicationsMobile appsDesktop softwareEmbedded systems
PyTorch Dependency
SDK Programming Language Support
Multiple programming languages

Limitation Features

Audio Quality Limitation Free
128 kbps max
Audio Quality Limitation Paid
192 kbps max
Character Limit
500
Free Plan AI Usage Limit
1000
Free Plan Voice Generation Limit
10000
Not All Languages Supported
Requires Significant Compute
High computational resources needed
Speech Quality Depends on Input
Varies with text complexity and length

Pricing Features

Creator Plan Monthly Price
$25 per month
Free Plan AI Refine Limit
1000
Free Plan Character Limit
10000
Free Plan Price
$0
Free Tier
No Credit Card Required
No Explicit Paid Plans Shown
Pro Plan Price
$12 per month (billed annually)
Pro/Creator Plan Character Limit
200000
Trial Period
Not specified