Baidu’s Unlimited OCR uses R-SWA to parse dozens of pages with a 3B model
vista8 · x · 2026-07-22
A Chinese post highlights Baidu’s open-source Unlimited OCR project and says Yann LeCun has noticed it.
The project proposes Reference Sliding Window Attention (R-SWA) instead of the usual page-by-page parse-and-stitch pipeline. The idea is to keep KV cache at a constant size during decoding by borrowing how humans read and copy long documents, allowing a 3B-parameter model to continuously parse dozens of pages in one pass.
The post also claims the project quickly became a major hit after open-sourcing:
- GitHub Trending and Hugging Face download charts went to No. 1 on launch day
- GitHub stars have passed 16.5K
- Hugging Face downloads are over 2.24M
- it has returned to the trending charts and is now ranked second
It is framed as infrastructure for large-model training-data cleaning.
Related event: Baidu Open-Sources Unlimited-OCR for Long Documents(3 posts)→
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