Computer-use startup Cua has released CUA-S1-FORMS, a compact open model designed to select options in graphical user-interface forms in a single forward pass.
The model targets one narrow computer-use task
The published model card describes a 706,048-parameter, 2.8MB checkpoint that scores available options using screenshot, question and choice information. It selects among supplied options; it does not generate text or field values.
Code and training materials are public
Cua published the model under the MIT license alongside training and evaluation code, synthetic-data tooling and integration components. The model card describes about 150,000 training rows, 18,000 validation rows and 20,000 synthetic test rows, plus 196 real demonstration rows.
Benchmarks remain self-evaluated
RuntimeWire independently reported the release and its open-source scope. Performance figures in the model card are Cua's own evaluation and were not independently reproduced; public availability does not establish production reliability or adoption.