SGLang

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SGLang is an open-source framework for serving and running large language models efficiently. Recent coverage shows it adding day-0 support for Reflection's Beam, a 501B-parameter MoE model with 23B active parameters and a 1M-token context, and for Hugging Face's DSpark speculative decoding drafter. SGLang also published a coordinated disclosure about a Cloudflare tenant-isolation flaw in GLM-5.3 on Workers AI that exposed 155 responses.

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Open-source research proposes new sparse attention for ultra-long context

An open-source research team shows attention can be sparsified on Qwen 3.8 27B without observed accuracy loss, and that extending context to 10M tokens hurts some tasks but leaves most, like NIAH, fine. It says sparse attention can be trained natively on next-token loss, matching full-attention validation loss faster; kernels, SGLang integration and the paper are open.

r/LocalLLaMA ·

Ling-3.1-flash-1019 weights and base model released

Ling-3.1-flash-1019 weights are now on Hugging Face, five days after a "coming soon" teaser. The model keeps 560B total and 25B active parameters with a 1M context, and scores 44 on AA Intelligence Index v4.3.2, up from 41, with AutomationBench-AA rising from 62% to 68%. A BF16 base model is also released for further training, though the 1019 README's SGLang example still points to the older model path.

r/LocalLLaMA ·

Reflection releases 501B open model Beam

New US lab Reflection released Beam, its first open model, on Hugging Face. The MoE model has 501B total parameters (23B active per token), a 1M-token context window, and an Apache 2.0 license. Aimed at coding and agentic use, it has day-0 support in transformers, SGLang and vLLM plus a Rust harness.

Hugging Face Blog ·

Researchers Introduce Context Language Models

A new paper introduces Context Language Models (CLMs), which treat context as a file the model manages on its own. Zero-shot CLMs beat state-of-the-art context-management strategies: 11.4% higher accuracy with 21.5% fewer FLOPs on BrowseComp-Plus, plus gains on EdgeBench and a 24-hour multi-repository task. An online RL method and Suffix Cache Reuse serving further cut compute.

Hacker News ·
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