Granite Speech 4.1 2B Plus

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1. Oct 21
   IBM updates Granite Speech with three open-weight models

   IBM released Granite Speech 5.0 2B and revised Granite Speech 5.0 Turbo CTC and Granite Speech 4.1 2B Plus, all under Apache 2.0 with native Transformers support. According to IBM, the new 2B model adds multilingual transcription and translation, language-ID prompting and keyword biasing for up to 2,000 terms, while Turbo CTC gains multilingual transcription and native punctuation; 4.1 2B Plus improves speaker attribution, timestamps and long-speech performance. IBM also reports a 5.06% average English WER for Granite Speech 5.0 2B and 19,870 RTFx for Turbo CTC, though these results are vendor-provided and the former ranking is described as unofficial.

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