Diatts
Dia TTS is an open-source, Apache-2.0 text-to-speech model designed for realistic multi-speaker dialogues with voice cloning, emotional control, and non-verbal sound generation.
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Best for: Content & Marketing
What it does
Voice & Speech software for decision-makers comparing workflow fit and alternatives.
Best fit
Content & Marketing
Pricing snapshot
Freemium from Free
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Dia TTS is an open-source text-to-speech model (Apache 2.0) focused on producing natural multi-speaker dialogues. It supports voice cloning from short audio samples, fine-grained emotion and tone control, and the generation of non-verbal sounds such as laughter and coughs. The model is presented as usable via a web demo and downloadable/open weights, and is optimized for real-time performance on consumer-grade GPUs, targeting content creators, developers, educators, and enterprise integrations.
Dia TTS is an open-source, Apache-2.0 text-to-speech model designed for realistic multi-speaker dialogues with voice cloning, emotional control, and non-verbal sound generation.
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Claim this listing for $29Key Features
Realistic Dialogue Generation
Generates lifelike multi-speaker conversations with natural timing, pauses, interruptions, and variations in speaking speed.
Non-Verbal Sound Support
Can produce non-verbal sounds (e.g., laughter, coughing, throat clearing) directly from text cues, removing the need for separate sound effects.
Voice Cloning
Mimics any voice using a short audio sample to produce personalized output and consistent voices across projects.
Emotion and Tone Control
Allows adjustments to speech emotion and tone for expressive, context-appropriate output; supports SSML tags and emotion parameters.
Open Source (Apache 2.0)
Weights and code are openly available under the Apache 2.0 license for free use, modification, and research.
Large Model & Transformer Architecture
Uses a 1.6 billion parameter transformer-based model to capture intonation, rhythm, and long-context coherence.
Audio Conditioning
Supports reference audio conditioning to guide voice style and emotion for more precise outputs.
Real-Time Optimizations
Optimized for fast generation on consumer-grade GPUs to enable near real-time use cases.
Pricing
Free tier available for testing and development; free tier limit of up to 1000 characters per request.
Free
Free- Free tier for testing and development
- Character limit: up to 1000 characters per request (free tier)
Paid (Usage-based)
Usage-based paid plans (no specific prices listed)- Higher per-request character limits than free tier
- Scalable usage-based billing
Enterprise
Custom pricing- Customizable enterprise plans and higher limits
- Priority support and custom integration assistance for enterprise customers
Use Cases
Content Creation
Generate dialogue for podcasts, audiobooks, and videos with multiple speakers and embedded non-verbal sounds.
Language Learning
Create realistic conversations for listening and speaking practice with controllable tone and emotion.
Customer Support
Power virtual assistants with more human-like interactions to improve automated support experiences.
Game Development
Produce lifelike character voices and interactions useful for indie developers and rapid prototyping.
Advertising & Marketing
Generate emotionally controlled voiceovers for ads and marketing materials to support fast iteration and A/B testing.
Integrations
REST API
Provides a robust REST API for developers to integrate Dia TTS into applications (site states API is available and well-documented).
Open Weights & GitHub
Code and model weights are available publicly (open-source) for integration, research, and customization via GitHub.
Benefits
Limitations
No verified limitations are available.
Frequently Asked Questions
What is DIA-TTS?
How accurate is the voice cloning feature?
What languages are supported?
Is there an API available?
What are the pricing options?
How can I control emotions in the generated speech?
What file formats are supported?
Is there a character limit per conversion?
What kind of support do you offer?
How secure is the service?
Getting Started
- 1 Step 1: Input your script into the interface, using speaker tags like [S1], [S2] and non-verbal cues such as (laughs).
- 2 Step 2: (Optional) Upload a reference audio file to guide voice style or enable voice cloning.
- 3 Step 3: Click 'Generate' to produce speech from the provided text and parameters.
- 4 Step 4: Preview the generated audio in the interface and download the file if satisfied.
Support
docs
Detailed documentation, API references, and code examples are provided (site states documentation is available).
Contact via listed email address: [email protected]
customer service
Dedicated customer service and priority enterprise support are offered for paid/enterprise customers.
API
Robust REST API that is well-documented and supports various programming languages and frameworks (no direct documentation URL provided on the supplied page).
Rate limits vary by plan; free tier limit is up to 1000 characters per request.
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