My company probably spent close to 6 figures overall creating Tesseract 5 custom models for various languages. Surya beats them all and is open source (and quite faster).
Surya weights for the models are licensed cc-by-nc-sa-4.0. They have an exception for small companies. If you're company is not small you either need to pay them or use them illegally.
Their training code and data is closed source. They are barely open weight and only inference is open source.
Their training code and data is closed source. They are barely open weight and only inference is open source.