Baidu releases Unlimited-OCR-2 with unlimited-horizon parsing via SR-SWA
Baidu released Unlimited-OCR-2 on October 27, 2026, introducing Sparse Reference Sliding Window Attention (SR-SWA) that compresses text-visual attention interactions to a fixed-size set of working references such as 512 tokens. This bounds computational complexity and keeps per-step decoding latency and memory footprint nearly constant regardless of document length. The model achieves…
Key points
- Baidu releases Unlimited-OCR-2 with SR-SWA for unlimited-horizon parsing
- Achieves SOTA on MPDocBench and MarathonDocBench benchmarks
- Available on Hugging Face, ModelScope, Baidu Cloud with SGLang serving support
baidu/Unlimited-OCR-2 · Hugging Face
huggingface.co · 27 October 2026
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