csm-1b

tts

CSM (Conversational Speech Model) is a speech generation model from Sesame that generates RVQ audio codes from text and audio inputs. The model architecture employs a Llama backbone and a smaller audio decoder that produces Mimi audio codes.

Capabilities

Infrastructure
Streaming

Details

Model IDsesame/csm-1b
Provider DeepInfra
Creator sesame
Familysesame
License—
Statusactive
Typetts
Input modalitiestext
Output modalitiesspeech
Open weightYes
Parameters—
Architecture—
Max chars—
Sample rate—
Voices—
Languages—
Release date—
Sourceofficial

Endpoints

audio speechPOST
https://api.deepinfra.com/v1/openai/audio-speech

Pricing

$7.0000 per 1M input characters

API

GET/v1/models/deepinfra/sesame/csm-1b

csm-1b

sesame/csm-1b

CSM (Conversational Speech Model) is a speech generation model from Sesame that generates RVQ audio codes from text and audio inputs. The model architecture employs a Llama backbone and a smaller audio decoder that produces Mimi audio codes.

Changes · 1 entries
sesame/csm-1bcreate3e56cf1Apr 26, 2026, 07:23 PM