Model dossier

Sesame: CSM 1B

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...

ProviderSesame Start comparison

Context4,096

Max outputn/a

Pricing viewTVP price

Identity

Sesame: CSM 1B

Model ID: sesame/csm-1b
Canonical slug: sesame/csm-1b
Knowledge cutoff: n/a
Created: 4/23/2026

Capabilities

textspeechstructured

Modalities

text->speechtextspeech

Capacity

Context4,096

Max outputn/a

TokenizerOther