Equation 10 · What Multimodal AI Actually Costs, Modality by Modality
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Symbol tau_frame
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subscript
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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.
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