Sesame

What is Sesame CSM-1B?

Sesame CSM-1B is an open source text-to-speech (TTS) model that Vapi hosts for seamless integration into your voice applications. Currently in beta, this model delivers natural-sounding speech synthesis with a single default voice option.

Key Features:

• Vapi-Hosted Solution: Access this open source model directly through Vapi without managing your own infrastructure
• Single Default Voice: Currently offers one voice option optimized for clarity and naturalness
• Beta Release: Early access to this emerging TTS technology

Integration Benefits:

• Simplified setup with no need to self-host the model
• Consistent performance through Vapi’s optimized infrastructure
• Seamless compatibility with all Vapi voice applications

Use Cases:

• Virtual assistants and conversational AI
• Content narration and audio generation
• Interactive voice applications
• Prototyping voice-driven experiences

Current Limitations:

As this is a beta release, the model currently offers limited customization options with only one default voice available. Additional features and voice options may be introduced in future updates.