Sesame

We provide access to Sesame’s ultra-realistic CSM-1B voice model, through a rebuilt version that can produce audio in real-time and at low-latency. This voice engine is available at no additional cost.

In testing, the voice generally surpasses state-of-the-art voice vendors in realism, while beating them on cost and latency.

​

Key Features

• Natural Prosody: Sesame voices deliver more natural intonation, rhythm, and stress patterns in speech
• Improved Expressiveness: Better emotional range and contextual understanding
• Enhanced Pronunciation and Spelling: More accurate handling of complex words and phrases
• Seamless Transitions: Smoother flow between sentences and paragraphs

​

Using Sesame Voices

Sesame voices can be identified by the “Sesame” tag in the voice selection interface.

While there are a small number of available Sesame voices right now, cloning Sesame voices is straightforward, and can be done with ~8-20 seconds of audio. For tips on effectively creating new Sesame voices, see the Voice Cloning section.