\documentclass[tikz,border=2pt]{standalone}
\usepackage{amsmath}
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\begin{document}
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 at (0,3.12) {Deployable prediction path at the same causal cutoff $t_n$};
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 {observed AV history\\8-s maximum budget};
\node[block,minimum width=25mm] (omni) at (4.15,2.26)
 {frozen Omni Thinker\\last-four-layer state};
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 {last 1-s mixed audio\\cropped at $t_n$};
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 {frozen audio encoder\\valid-token mean};
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 {optional recent frames\\provided person boxes};
\node[local,dashed,minimum width=25mm] (ve) at (4.15,0)
 {frozen visual encoder\\pooled person tokens};
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 {normalized features\\+ validity $\to$ MLP};
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 {$10\times3$ forecast\\0.2--2.0-s horizons};
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 {background / wearer / aggregate others};
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 at (0,-.94) {Bounded streaming state: no media after $t_n$};
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\node[font=\sffamily\tiny,text=orange] at (7.13,-1.615) {observed tail};
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 at (7.85,-1.12) {$t_n$};
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 {reuse completed payloads;\\recompute temporary tail only};
\node[anchor=east,text=teal] at (1.9,-2.33) {local 1 s};
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 {recent evidence refreshed every 200 ms};
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 {Privileged past-activity labels are evaluated separately as an information audit; they never enter this prediction path.};
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\end{document}