Unverified60% confidenceTradeoffExact time
3D attention computes attention simultaneously across spatial and temporal dimensions, with a computational complexity of O(n²) where n is the total number of tokens across all frames, causing a computational bottleneck for long video generation.
2
Sources
60%
Confidence
Long-term
Relevance
8/8/2026
First Seen
Sources
MiniMax H3开源视频模型AMA深度解读：架构、能力与未来规划
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