TikZ: a three-set coffee Venn diagram, by mimo-v2.6-pro
mimo-v2.6-pro · round 1 · seed 1$0.01SVGPNGPDFvenn.tex
venn.tex · 48 lines
\documentclass[tikz,border=6mm]{standalone}
\usetikzlibrary{calc}

\begin{document}
\begin{tikzpicture}[font=\sffamily]

% circle centres: espresso (top), milk (lower left), cold (lower right)
% radius 2.2, centres 1.3 from origin
\def\r{2.2}
\coordinate (E) at (0,1.3);
\coordinate (M) at (-1.126,-0.65);
\coordinate (C) at (1.126,-0.65);

% translucent fills so overlaps darken naturally
\fill[orange!35, opacity=0.55] (E) circle (\r);
\fill[blue!35,   opacity=0.55] (M) circle (\r);
\fill[cyan!35,   opacity=0.55] (C) circle (\r);

% outlines
\draw[orange!70!black, thick] (E) circle (\r);
\draw[blue!70!black,   thick] (M) circle (\r);
\draw[cyan!50!black,   thick] (C) circle (\r);

% set labels (outside each circle, on its outer side)
\node[font=\sffamily\bfseries\large, orange!50!black] at (0,3.95) {Has espresso};
\node[font=\sffamily\bfseries\large, blue!50!black]   at (-3.15,-2.35) {Has milk};
\node[font=\sffamily\bfseries\large, cyan!30!black]   at (3.15,-2.35) {Served cold};

% ---- drinks ----
% espresso only
\node[font=\sffamily\itshape] at (0,2.55) {short black};
% milk only
\node[font=\sffamily\itshape] at (-2.15,-1.35) {babyccino};
% cold only
\node[font=\sffamily\itshape] at (2.15,-1.35) {cold brew};
% espresso & milk (hot)
\node[font=\sffamily\itshape, align=center] at (-1.05,0.7) {flat white};
% espresso & cold
\node[font=\sffamily\itshape, align=center] at (1.05,0.7) {iced long\\black};
% milk & cold
\node[font=\sffamily\itshape] at (0,-1.55) {milkshake};
% all three
\node[font=\sffamily\itshape] at (0,0.05) {iced latte};
% outside everything
\node[font=\sffamily\itshape] at (0,-3.55) {pour-over};

\end{tikzpicture}
\end{document}

Every drink right, and two labels across an edge. The clock ended it after one render.

modelxiaomi/mimo-v2.6-protasktikz-coffee-venn@v1date2026-09-25rounds1 of 8 allowedcost$0.0068thinkingmediumtokens18,255 in, 3,936 out, of which 3,117 reasoningtime12 min 0 sfailurelabelling

What the harness did to this run. The 12-minute clock ended it before the model finished, so this is where it had got to when time ran out.

Compilesdecided by a number, from the filepass
Seven regions, three namesdecided by a number, from the filepass
Every drink in its regiondecided by a number, from the filepass
No label on an edgedecided by a number, from the filefail
read the post
its other runs
the prompt it was given
Using LaTeX and TikZ, draw a Venn diagram of three overlapping circles labelled "Has espresso", "Has milk" and "Served cold". Write each of these drinks in the region where it belongs: short black, flat white, iced latte, iced long black, cold brew, babyccino, milkshake, pour-over.
Frozen at v1. This model got this and nothing else.
ground truth

Short black is espresso only, flat white espresso and milk, iced long black espresso and cold, iced latte all three, babyccino milk only, milkshake milk and cold, cold brew cold only, and pour-over outside every circle. The circles and words are read back out of the compiled PDF, each word has to be centred in its own region, and no letter may touch a circle's outline, with the line's width counted. How it is scored, and this run's files on GitHub.