Microsoft's Wavlm Base Plus Sv is an open-source audio model exceling at speaker verification and audio processing tasks, with capabilities in speech-to-text when fine-tuned with a tokenizer. It was pretrained on 94,000 hours of speech audio, including Libri-Light, GigaSpeech, and VoxPopuli datasets, using utterance and speaker contrastive loss.
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Microsoft has not published a context window for Wavlm Base Plus Sv, so the catalog shows it as not available rather than estimating one.
No. Wavlm Base Plus Sv is a proprietary model (license: Proprietary): its weights are not distributed, and it runs only through Microsoft's own API or a host with access to it.
Wavlm Base Plus Sv accepts Audio and produces Embedding. The capabilities card on this page lists which API features each deployment honours, such as function calling and structured output, with the source each was checked against.
No published benchmark result for Wavlm Base Plus Sv is in the catalog yet, so the model is shown as unmeasured. It is not ranked or estimated; the router treats it as unknown for every task until a suite measures it.
Not on the managed pool today; Wavlm Base Plus Sv is listed for reference and comparison. Connect your own provider key or endpoint that serves it and the gateway runs it on your account, with routing decisions recorded the same way.
Wavlm Base Plus Sv cannot be self-hosted: its weights are not distributed. It is used through an API, either Microsoft's own or the Inferbase gateway where it is served.
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Last updated: Aug 28, 2026
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