Equation 8 · Part 1 · What Multimodal AI Actually Costs, Modality by Modality
Symbol t
What this part means
duration in seconds.
Its job in the formula
t 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 t→Article meaning
Where the article explains it
where t is duration in seconds, f the sampling rate, and , the per-frame and per-second-of-audio token costs Google publishes.
The passage around this formula
where t is duration in seconds, f the sampling rate, and , the per-frame and per-second-of-audio token costs Google publishes. A minute of default-resolution video comes to roughly 18,000 tokens — about 2.7 cents at Gemini 3.5 Flash’s input rate, or about 1.35 cents at Gemini 3.7 Flash’s [ 6 , 4 ] . That is understanding a minute of footage: having the model watch it once and answer questions about it.
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.