# Klang. Those geniuses.

2026-09-23 · Joakim Jardenberg. English translation by AI. Original wording preserved. Titles and image descriptions added by AI.

Klang, honestly. Now they’ve released their own model too, specifically trained on Swedish, with completely outrageous results for both quality and speed. Almost an hour of audio transcribed in UNDER ONE SECOND. And on a quick check I can’t find A SINGLE OBVIOUS ERROR.

And you know what? Pianissimo has open weights and is available for anyone to use. Even if I never get a single krona back from my investment in this company, it will have been worth every öre. They’re bloody geniuses 🎉

![The original Pianissimo demo reports transcribing 51 minutes and 34 seconds of audio in 0.78 seconds, excluding upload time.](https://jardenberg.com/images/notes/7508439391716089858.jpg)

Image description · AI: The screenshot records the result shown in JJ’s own demo at the time of posting: 0.78 seconds for 51 minutes and 34 seconds of audio, with upload time excluded. It is not a general benchmark.

[Original LinkedIn post](https://www.linkedin.com/feed/update/urn:li:activity:7508439391716089858/)

## Original wording

Klang alltså. Nu har de släppt en egen modell också, specifikt tränad på svenska, med helt bisarra resultat både när det gäller kvalitet och tid. Nästan en timmes ljud transkriberat på UNDER EN SEKUND. Och vid en snabbkoll hittar jag INTE ETT ENDA UPPENBART FEL.

Och vet du, Pianissimo är öppna vikter och öppet för vem som helst att använda. Även om jag aldrig får tillbaka en krona av min investering i det här bolaget har det varit värt varenda öre. Jäkla genier är de 🎉

Source: https://jardenberg.com/notes/klang-those-geniuses

Joakim Jardenberg. English translation by AI. Original wording preserved. Titles and image descriptions added by AI.

Joakim Jardenberg’s own writing: CC BY 4.0. Credit Joakim Jardenberg and preserve AI + JJ / AI translation attribution. Third-party quotations, recommendations, photographs, screenshots, logos and media retain their own rights and are excluded.
Licence: https://creativecommons.org/licenses/by/4.0/