Machine Learning Algorithms & Natural Language Processing

Oct 27, 2026 · Artificial Intelligence

Baidu Unlimited OCR 2: 500M-Param Model Tops Long-Doc Benchmarks, Parses 5000+ Pages on Consumer GPU

Baidu open-sources Unlimited OCR 2, a 3B-parameter document parsing model with only 500M activated parameters, achieving state-of-the-art on MarathonDocBench (77.06) and MPDocBench (84.59), processing 5000+ page PDFs in one pass with 96% KV memory reduction via SR-SWA attention and unlimited decoding.