S1-mini

Superwhisper

A 0.6B-parameter text normalizer for speech-to-text output. It takes a raw ASR transcript and rewrites it as clean written text: fillers removed, false starts and self-corrections resolved to the value the speaker landed on, punctuation and capitalization applied, and spoken numbers, dates, times, currency and email addresses rendered in written form.

Specs

Model

Family
S1
Variant
mini
Parameters
596M
Weights
Open
License
Apache-2.0 with naming clause

Limits

Context
40,960 tokens

Modalities

Input
Text
Output
Text

Capabilities

Tool calling
No

Dates

Released
12 Aug 2026

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