Pen 2.0 Is Live
The strongest version of ClearHandoff's AI drawing assistant yet. As fast as its predecessor, but it catches more mistakes.
Pen 2.0 is live. This is the strongest version of ClearHandoff’s AI drawing assistant yet.
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It’s as fast as its predecessor but catches more mistakes. Pen helps you save human review time and increase the quality of the drawings you release.
Among the different error types, you’ll see the biggest performance increase around spell checking of annotations.
With Pen 2.0 we have moved to a new software architecture where multiple AI reviewers each focus on a different drawing error type. We see that this new architecture allows us to better tackle very complex drawings, where an AI that looks at everything at once can get overwhelmed.
Nothing has changed in terms of our belief in building upon the strongest frontier AI models. You’ll get the breadth of knowledge of the frontier and we don’t train on your drawings. Pen 2 currently runs on GPT 5.6, which shows the best performance in our tests.
Pen 2.0 runs in every new AI review, no setup needed. You can try it by uploading a PDF of one of your drawings.
