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Sesame: CSM 1B

OpenRouter model catalogue · model · Publication date unknown

CSM 1B is a conversational speech model from Sesame. It accepts text input and produces English speech output, with voice options spanning conversational and read-speech styles. At 1B parameters, it...

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recordType
model-catalog
evidenceStatus
provider-reported
region
Global

Evidence & attribution

First collected: 2026-09-20T08:01:03.945Z. This is not the publication date.