Equation 7 · Part 3 · What Multimodal AI Actually Costs, Modality by Modality
Symbol f
What this part means
the sampling rate.
Its job in the formula
f is one of the signed contributions combined to compute the quantity on the left.
Full expression→Symbol f→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
…of video.” At the model’s low-resolution setting, the same second costs about 100 tokens — 66 for the frame plus 32 for audio [ 6 ] . In the notation above, that is . 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…
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.
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Sources cited in the surrounding passage
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