Remember, you can also use the API directly. Here's an example using curl (and jq):
Substitute FILENAME, and language=..., and remember to set proper content-type
curl -s -F upload=@FILENAME.png -F content-type=image/png https://gtweb-02.uit.no/ocr-api/api/v1/images?language=smi_nor | jq -r '.text'Models marked GT are Giellatekno models. Models marked NB are models from the Norwegian National Library (Nasjonalbiblioteket).
Read about the NB models here: nb.no/sprakbanken/ressurskatalog/oai-nb-no-sbr-100/