IBMGranite Speech

Granite Speech 5.0 470M TurboCTC

Granite Speech 5.0 470M TurboCTC is a non-autoregressive speech recognition model. Its current multilingual revision recognizes seven languages and produces capitalized, punctuated text.

Model design and capabilities

The encoder has 16 Conformer blocks with block attention, self-conditioning and temporal downsampling. A 16,384-unit multilingual BPE head produces CTC outputs. The current model uses 153,000 hours of public audio. It supplies transcription rather than general language reasoning or speech generation.Granite Speech 5.0 470M TurboCTC model card

Practical use

Practical guidance. TurboCTC is useful when transcription latency matters more than flexible language prompting. Measure word errors together with punctuation and names on your recording conditions. Keep downstream summarization as a separate step so that transcription errors remain visible.

Specifications & access

Granite Speech 5.0 470M TurboCTC specifications
DetailValue and conditions
AccessDownloadable
Model identifiersibm-granite/granite-speech-5.0-470m-turboctc
LicenseApache 2.0Granite Speech 5.0 470M TurboCTC model card
Parameters470MGranite Speech 5.0 470M TurboCTC model card
LanguagesEnglish, French, German, Spanish, Portuguese, Italian and Japanese.Granite Speech 5.0 470M TurboCTC model card

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