NAVIGATION
Definition

KV Cache

A KV Cache (Key-Value Cache) is an inference-time optimization storing the computed Key and Value attention tensors of past tokens to prevent redundant recalculations in autoregressive decoding.

Frequently Asked Questions

What problem does KV caching solve?

It avoids computing attention scores quadratically, reducing the process to linear time during token generation.

What is the main limitation of KV caching?

It consumes a significant amount of GPU memory (VRAM) as context window length and query volumes scale.

Quick Facts

  • CategoryModel Operations
  • Key ApplicationResponse generation acceleration, chatbot latency reduction, and long context queries.

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