Portuguese translation and speech-to-text models pt

44 models into Portuguese, 26 from Portuguese, 13 speech-to-text. Best scored into Portuguese: English to Portuguese (chrF++ 66.6). Best scored from Portuguese: Portuguese to Catalan (chrF++ 55.8).

Which open models work for Portuguese?

Windy Translate lists 44 open translation models into Portuguese and 26 from Portuguese. All of them can be downloaded from Hugging Face and run on your own hardware. By licence: 67 Apache-2.0 and 3 CC-BY-4.0 (terms and attribution text: licensing). 10 of them have a screening score on FLORES-200. The best scored into Portuguese is translate-tc-big-en-pt (chrF++ 66.6, Excellent). The best scored from Portuguese is translate-pt-ca (chrF++ 55.8, Good).

With English. English to Portuguese: translate-tc-big-en-pt (chrF++ 66.6, Excellent). Portuguese to English: no direct model here.

By band, the scored Portuguese models are 1 Excellent, 5 Good and 4 Usable (Excellent is chrF++ 60 or more, Good 45 to 60, Usable 30 to 45, Limited 15 to 30). A score is a 48-sentence screening of news and encyclopedia text, not a measure of accuracy, and a difference of a point or two is noise. How we measured.

Speech-to-text. 1 speech-to-text model made for Portuguese: listen-windy-lingua-pt. Also, Whisper's tokenizer lists Portuguese as one of its languages, so all 12 multilingual Whisper-based models here can transcribe it: see the speech models. Accuracy differs a lot between languages and model sizes, and this site has not measured speech accuracy.

Each model page has a short snippet to download and run the model yourself, its licence and attribution text, and its score where there is one. Pick the best scored model for your direction, then try it on a few sentences of your own text: a screening score is a starting point, not a guarantee.

Into Portuguese

From Portuguese

Portuguese speech-to-text

Scores: chrF++ on FLORES-200 dev, 48 sentences, measured 2026-08-04. Method.