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An interactive essay revisiting RAND Corporation's 1966 GRAIL handwriting recognition system, explaining Gabriel Groner's real-time handprinted text recognition algorithm with interactive implementations and open-source code.
Chandra is a free OCR tool from Datalab that can read doctors' handwriting, complex tables, mathematical equations, and forms, outputting results in Markdown, HTML, or JSON. It supports over 40 languages and can be installed via pip.
Daniel Nguyen open-sourced Inka, a pen-first AI journal app for BOOX e-ink tablets. It allows users to write with a stylus and receive AI-generated handwritten replies on the page, using their own API key.
Mistral OCR 4 converts handwritten calculus exams into clean LaTeX, accurately reading formulas and accounting for graphs, though it does not redraw them. The model provides structured output with bounding boxes and confidence scores in 170 languages.
Mistral AI releases Mistral OCR 4, which can read historical handwritten manuscripts and provides bounding boxes, block classification, and inline confidence scores in 170 languages.