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Thursday, 20 August 2026

Meet S1-mini: Superwhisper’s 462 MB Open-Weights Text Normalizer That Turns Raw ASR Transcripts Into Clean Written Text

MarkTechPost 1 month ago 51

Superwhisper released the S1 family of models, including S1-mini: a 0.6B open-weights text normalizer for rewriting raw ASR transcripts into cleaned written text. On its held-out set of 7,519 cases, S1-mini reached 94.8% token accuracy (greedy on the Q4_K_M quantized build). As a result, developers can run only S1-mini locally on a 462 MB laptop-CPU GGUF file while the S1-Voice and S1-Language components remain cloud-only services.

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