Baidu open-sources Unlimited-OCR, a 3B long-horizon document parsing model
Baidu published Unlimited-OCR on Hugging Face, a 3B image-text-to-text model under an MIT license that the card frames as "one-shot long-horizon parsing," aiming to push beyond DeepSeek-OCR. It supports single images in two configs (gundam and base) plus multi-page and PDF parsing with a 32,768 max length and no-repeat n-gram constraints, and the card ships instructions for Transformers, vLLM and SGLang inference, ms-swift training, a ModelScope mirror, Baidu Cloud availability and a Hugging Face Spaces demo. The release timeline runs from June 22, 2026, the paper is listed as arXiv 2606.23050, and the authors credit DeepSeek-OCR, DeepSeek-OCR-2 and PaddleOCR; post-processing code for OmniDocBench evaluation is also provided.
Document parsing is a common entry point for deployed models, so an open-weight Baidu option gives developers another self-hostable choice for long-document OCR.