CSM 1B

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CSM 1B is Sesame's language model. A 1B-parameter conversational speech model from Sesame designed for natural, context-aware voice generation.
Specifications
Canonical IDsesame-csm-1b
TypeLanguage
StatusActive
CreatorSesame
Input ModalitiesText
Output ModalitiesText
Parameters1B

Capabilities

Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Model IDs

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