Models
Explore the available text-to-speech models and their capabilities
Voicelab Models
Voicelab provides access to state-of-the-art open-source text-to-speech models.
Featured Models
Sesame CSM-1B
State-of-the-art conversational speech model
This model is optimized and certain voices are professionally cloned. This means that we offer fast, low-cost inference for this model, and that select voices will have more consistent quality.
- Parameters: 1 billion
- Specialization: Natural conversation and dialogue
- Languages: English
- Key Features:
- Exceptional naturalness in conversational contexts
- Low latency inference
- Consistent voice quality across long generations
- Optimized for real-time applications
Dia
general-purpose TTS model
This model is not yet optimized or post-trained. Generation quality may be inconsistent.
- Parameters: 1.6 billion
- Specialization: General-purpose text-to-speech
- Languages: English
- Key Features:
- Accepts emotive tokens (e.g. laughing, sighing)
- Efficient inference
- Less stable than CSM-1B
Emotive Tags: (laughs), (clears throat), (sighs), (gasps), (coughs), (singing), (sings), (mumbles), (beep), (groans), (sniffs), (claps), (screams), (inhales), (exhales), (applause), (burps), (humming), (sneezes), (chuckle), (whistles)
Orpheus
Expressive and emotional speech synthesis
This model is not post-trained; the hosted weights are as-is.
- Parameters: 750 million
- Specialization: Emotional and expressive speech
- Languages: English (primary)
- Key Features:
- Advanced emotional control
- Dynamic prosody and intonation
- Character voice capabilities
- Rich vocal expressions
Emotive tags: <laugh>, <chuckle>, <sigh>, <cough>, <sniffle>, <groan>, <yawn>, <gasp>
Coming Soon
Kokoro, Chatterbox, Kyutai TTS
Model Specifications
Supported Features
| Feature | Sesame CSM-1B | Dia | Orpheus |
|---|---|---|---|
| Voice Cloning | ✅ | ✅ | ✅ |
| Emotive Tokens | ❌ | ✅ | ✅ |
| Multi-speaker | ✅ | ✅ | ✅ |
| Real-time Streaming | ✅ | ✅ | ✅ |
| Custom Fine-tuning | ✅ | ✅ | ✅ |
While CSM-1B doesn’t accept emotive tokens (laugh/sigh/etc.), it has the capacity to generate these artifacts in output audio based on conversational context.
Models
Explore the available text-to-speech models and their capabilities
Voicelab Models
Voicelab provides access to state-of-the-art open-source text-to-speech models.
Featured Models
Sesame CSM-1B
State-of-the-art conversational speech model
This model is optimized and certain voices are professionally cloned. This means that we offer fast, low-cost inference for this model, and that select voices will have more consistent quality.
- Parameters: 1 billion
- Specialization: Natural conversation and dialogue
- Languages: English
- Key Features:
- Exceptional naturalness in conversational contexts
- Low latency inference
- Consistent voice quality across long generations
- Optimized for real-time applications
Dia
general-purpose TTS model
This model is not yet optimized or post-trained. Generation quality may be inconsistent.
- Parameters: 1.6 billion
- Specialization: General-purpose text-to-speech
- Languages: English
- Key Features:
- Accepts emotive tokens (e.g. laughing, sighing)
- Efficient inference
- Less stable than CSM-1B
Emotive Tags: (laughs), (clears throat), (sighs), (gasps), (coughs), (singing), (sings), (mumbles), (beep), (groans), (sniffs), (claps), (screams), (inhales), (exhales), (applause), (burps), (humming), (sneezes), (chuckle), (whistles)
Orpheus
Expressive and emotional speech synthesis
This model is not post-trained; the hosted weights are as-is.
- Parameters: 750 million
- Specialization: Emotional and expressive speech
- Languages: English (primary)
- Key Features:
- Advanced emotional control
- Dynamic prosody and intonation
- Character voice capabilities
- Rich vocal expressions
Emotive tags: <laugh>, <chuckle>, <sigh>, <cough>, <sniffle>, <groan>, <yawn>, <gasp>
Coming Soon
Kokoro, Chatterbox, Kyutai TTS
Model Specifications
Supported Features
| Feature | Sesame CSM-1B | Dia | Orpheus |
|---|---|---|---|
| Voice Cloning | ✅ | ✅ | ✅ |
| Emotive Tokens | ❌ | ✅ | ✅ |
| Multi-speaker | ✅ | ✅ | ✅ |
| Real-time Streaming | ✅ | ✅ | ✅ |
| Custom Fine-tuning | ✅ | ✅ | ✅ |
While CSM-1B doesn’t accept emotive tokens (laugh/sigh/etc.), it has the capacity to generate these artifacts in output audio based on conversational context.