Equation 2 · Part 1 · Serving a Frontier Model: The KV Cache, Batching, and What a Token Actually Costs
Symbol L
What this part means
the number of layers.
Its job in the formula
L is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol L→Article meaning
Where the article explains it
for L layers, key–value heads, head dimension , sequence length s , batch size b , and p bytes per element.
The passage around this formula
for L layers, key–value heads, head dimension , sequence length s , batch size b , and p bytes per element. The factor of two counts keys and values.
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
Open the illustrated variables: a letter stands for a value guide →
See this notation across published equations →
Sources cited in the article section
These citations provide research context; check each source for the exact claim it supports.