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Baidu Open-Sources Unlimited-OCR, a 3B Model That Parses 100-Page PDFs in a Single Pass

  • Open Source
  • Foundation Models

Baidu has open-sourced Unlimited-OCR, a 3-billion-parameter document parser that reads entire 100-page PDFs in one shot—without splitting them into chunks or losing context across pages. Released on June 22, 2026, the model targets a persistent weakness in document AI: the tendency of conventional pipelines to fragment long documents page by page, breaking tables, cross-references, and reading order while accumulating errors deep into a file.

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