Text-to-speech

Sesame CSM 1B requirements, license & speed

By Sesame · released 2025-03-06 · 1.55B parameters

Commercial useYes
Min memoryNot stated
Runs on CPUUnknown
StreamingUnknown

Key facts

License
apache-2.0 source
Commercial use
Yes source
Apache-2.0 (HF repo gated)
Parameters
1.55B source
safetensors parameter count
Minimum memory
Not stated by source
Runs on CPU
Unknown
Streaming
Unknown
Voice cloning
Unknown
Languages
en source
Some non-English capacity but 'likely won't do well'
Released
2025-03-06 source
Hugging Face repo creation date (proxy for release date)
Gated on HF
Yes accept terms on Hugging Face before downloading

Measured speed & memory

Benchmark pending. We haven't measured Sesame CSM 1B yet. Planned targets: CPU (8 vCPU), Apple Silicon Mac, RTX-class consumer GPU and a rented cloud GPU. Get notified.

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