TikZ: a three-set coffee Venn diagram, by grok-4.7
grok-4.7 · round 6 of 6 · seed 3$0.13SVGPNGPDFvenn.tex
venn.tex · 48 lines
\documentclass[tikz,border=8pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{calc}
\begin{document}
\begin{tikzpicture}[
  font=\sffamily,
  drink/.style={align=center, font=\sffamily\footnotesize, inner sep=0.5pt, text=black},
  setlabel/.style={font=\sffamily\bfseries, align=center}
]

  % Circle centres and radius. Separation is small enough that
  % every pairwise lens and the triple overlap is a clear region.
  \def\R{2.55}
  \coordinate (E) at (0, 1.15);     % Has espresso
  \coordinate (M) at (-1.35,-0.85); % Has milk
  \coordinate (C) at ( 1.35,-0.85); % Served cold

  \fill[red!42,   opacity=0.55] (E) circle (\R);
  \fill[blue!42,  opacity=0.55] (M) circle (\R);
  \fill[green!42, opacity=0.55] (C) circle (\R);
  \draw[thick] (E) circle (\R);
  \draw[thick] (M) circle (\R);
  \draw[thick] (C) circle (\R);

  % Labels outside, colour-matched to their circle.
  \node[setlabel, text=red!65!black]   at (0, 4.05)    {Has espresso};
  \node[setlabel, text=blue!65!black]  at (-3.55,-3.55) {Has milk};
  \node[setlabel, text=green!45!black] at ( 3.55,-3.55) {Served cold};

  % Exclusive regions
  \node[drink] at (0, 2.55)      {short black};   % espresso only
  \node[drink] at (-2.55,-1.55)  {babyccino};     % milk only
  \node[drink] at ( 2.55,-1.55)  {cold brew};     % cold only

  % Pairwise only
  \node[drink] at (-1.42, 0.55) {flat\\white};    % espresso + milk
  \node[drink] at ( 1.15, 0.85)  {iced\\long black}; % espresso + cold
  \node[drink] at ( 0,   -1.85)  {milkshake};     % milk + cold

  % Triple overlap
  \node[drink] at (0, 0.15) {iced\\latte};

  % Complement of all three sets: hot filter coffee, no milk
  \node[drink] at (-4.05, 3.15) {pour-over};

\end{tikzpicture}
\end{document}
round 1 of 6
A three-set coffee Venn diagram, by Grok 4.7, the render after round 1
123456What the model saw after each round. The picture above is the round that was scored, round 6.

Every drink right, and only iced long black touching a line.

modelx-ai/grok-4.7tasktikz-coffee-venn@v1date2026-09-25rounds6 of 8 allowedcost$0.1310thinkingmediumtokens156,909 in, 9,109 out, of which 6,151 reasoningtime2 min 39 sfailurelabelling
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.