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PreDiff-LM proposes a hybrid attention mechanism that preserves causal attention for prompt tokens and bidirectional attention for masked target tokens, enabling adaptation of pretrained autoregressive models for discrete masked diffusion language modeling, achieving improvements in perplexity and downstream tasks over prior diffusion baselines.
GLIDE introduces a layer-wise adaptive mechanism that strategically integrates sliding-window softmax attention with linear recurrent aggregation for efficient LLM inference, reducing KV cache I/O and latency for long contexts without compromising quality.
Kimi K3, a 2.8-trillion-parameter multimodal MoE model with 1M context window, now has day-0 vLLM support. This guide details how vLLM serves K3's novel architecture including Kimi Delta Attention, Attention Residuals, and speculative decoding achieving up to 370 tok/s.
Ramp Labs open-sourced PorTAL, a framework for shared task representations and cross-model LoRA adaptation, supporting hybrid attention models and multimodal systems including Gemma 4, Mistral 7B, and Inkling.
NVIDIA Research introduces SANA-Video 2.0, a hybrid video diffusion transformer that generates high-quality 720p video on a single GPU, achieving up to 120× speedup over Wan 2.2-14B via hybrid linear-softmax attention and block attention residuals.
SANA-Video 2.0 introduces a hybrid linear-softmax attention mechanism for video diffusion transformers, achieving high-quality video generation up to 720p on a single GPU with significantly reduced latency compared to full-softmax models, while maintaining competitive VBench scores.
Upstage released Solar Open2 250B, a 250B-parameter mixture-of-experts model with only 15B active parameters, featuring hybrid attention for efficient long-context inference up to 1M tokens, designed for agentic use cases such as tool calling and multi-step reasoning.
Upstage released Solar Open 2, a 250B-parameter open-weight MoE model with hybrid attention, delivering performance comparable to DeepSeek V4 Flash while being efficient for agentic workflows.
Proposes a training-free NLL-guided method for selecting which layers to retain full attention in hybrid attention models, achieving comparable accuracy with 1/4 full-attention layers against a 1/2 periodic baseline on long-context tasks.
FlashMorph is an efficient layer selection method that formulates hybrid layer selection as a budget-constrained optimization problem, using morphable models and linearization regularization to improve long-context efficiency in Transformers.
DeepSeek releases V4 series of Mixture-of-Experts language models (Pro 1.6T/49B activated, Flash 284B/13B activated) supporting one-million-token context with hybrid attention and speculative decoding, claiming best open-source model performance.
HydraHead is a novel attention hybridization architecture that combines Full and Linear Attention at the head level, achieving superior long-context performance with reduced training overhead via interpretability-driven selection and scale-normalized fusion.
ConSA is a framework that learns optimal assignment between full attention and sliding-window attention under a user-specified sparsity target, using L0 regularization and augmented Lagrangian constraint. It demonstrates consistent gains over rule-based baselines on LLMs at 0.6B and 1.7B scales.
CHIAR-Former uses spectral entropy-based routing to dynamically select between DCT, RBF, and self-attention operators, achieving improved efficiency on large text datasets while maintaining performance through hybrid attention mechanisms.
InstructSAM presents a unified framework for multi-instance segmentation using instruction-driven queries that bridge vision-language models and SAM3, achieving strong results across complex benchmarks.