Unverified50% confidenceFactExact time
When the context expands from 4K tokens to 128K tokens (a 32× increase), the theoretical computation grows by approximately 1024×.
1
Sources
50%
Confidence
Long-term
Relevance
9/4/2026
First Seen
Sources
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Related Claims
UnverifiedThe context window of modern large models has expanded from the early 4K tokens to 128K or even longer, and the computational complexity of the attention mechanism grows quadratically with context length.75% similarUnverifiedWhen the context length is extended from 4K to 8K, the VRAM occupied by the KV Cache nearly doubles74% similarUnverified将上下文从128K扩展到1M，理论计算量会增加约60倍72% similarUnverifiedThe attention matrix size required to process a 128K token sequence is 256 times that of an 8K token sequence.70% similar
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