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Equation 10 · Part 1 · A History of Llama and the Open-Weight AI Movement

Symbol P_active

PactiveP_{\mathrm{active}}
PactiveP_{\mathrm{active}}

What this part means

PaP_active is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

PaP_active is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

…activated per token. Total capacity scales with the number of experts E available to the router, roughly PtotalP_{\mathrm{total}} ≈\approx PsharedP_{\mathrm{shared}} + E ⋅\cdot PexpertP_{\mathrm{expert}} , while inference compute scales with PactiveP_{\mathrm{active}} , not PtotalP_{\mathrm{total}} . This is the exact mechanism behind Meta’s headline figures: Maverick’s 400 billion total parameters and 17 billion active parameters are not two different measurements of the same quantity, they are PtotalP_{\mathrm{total}} and PactiveP_{\mathrm{active}} under a…

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A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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Sources cited in the article section

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