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Zyphra·Feb 5, 2026·v1.0·open source

Online Vector Quantized Attention (OVQ)

OVQ is a novel sequence mixing layer developed by Zyphra that aims to balance memory-compute costs and long-context capabilities more effectively than standard sequence mixing layers. It utilizes a sparse memory update to significantly increase memory state size while maintaining efficient training and inference characteristics.

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overview

OVQ is a novel sequence mixing layer developed by Zyphra that aims to balance memory-compute costs and long-context capabilities more effectively than standard sequence mixing layers. It utilizes a sparse memory update to significantly increase memory state size while maintaining efficient training and inference characteristics.

key features
  • 01Linear compute and constant memory complexity
  • 02Sparse memory update for increased memory capacity
  • 03Competitive performance on long-context tasks
  • 04Efficient training and inference
  • 05Theoretical basis grounded in Gaussian mixture regression
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