Nous Research has introduced Lighthouse Attention, a selection-based hierarchical mechanism for long-context LLM pretraining that pools queries, keys and values across a multi-resolution pyramid. The approach achieves 1.4-1.7x wall-clock speedup against standard FlashAttention. https://www.marktechpost.com/2026/05/16/nous-research-proposes-lighthouse-attention-a-training-only-selection-based-hierarchical-attention-that-delivers-1-4-1-7x-pretraining-speedup-at-long-context/ #AIagent #AI #GenAI #AIResearch
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