# Interchangeable KV Importance Signals under One Compiled FlexAttention Budget with FlexBudget

**Published:** October 14, 2026
**Author:** PyTorch
**Source:** YouTube — PyTorch Official
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/interchangeable-kv-importance-signals-under-one-compiled-flexattention-b

When you run a model over a long context, the KV cache gets huge, so you have to throw some of it away. There are competing rules for choosing what to drop: keep the most recent tokens, keep the ones that get the most attention, and so on. The problem is that every method ships…

> From the original source: **YouTube — PyTorch Official**
> [Read full article at YouTube — PyTorch Official](https://www.youtube.com/watch?v=TzYie8xC-K0)

**Tags:** #YouTube

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