#KV cache

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An accelerator board caught part-way into its socket on a bright lab bench beside a row of identical boards already seated in the same serving tray

Foundation Models

Serving a Frontier Model: The KV Cache, Batching, and What a Token Actually Costs

Decoding is not limited by arithmetic. It is limited by how fast memory can be read, and almost every serving technique in production exists to work around that single fact.

By Brecht Corbeel · August 8, 2026 · 5 min read

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