TikZ: a three-set coffee Venn diagram, by ember-1
ember-1 · round 1 · seed 1$0.04SVGPNGPDFvenn.tex
venn.tex · 26 lines
\documentclass{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[font=\sffamily]
  % Circles
  \draw[thick, fill=red!20, fill opacity=0.6] (90:1.2) circle (2.2);
  \draw[thick, fill=blue!20, fill opacity=0.6] (210:1.2) circle (2.2);
  \draw[thick, fill=green!20, fill opacity=0.6] (330:1.2) circle (2.2);

  % Labels
  \node[font=\sffamily\bfseries] at (90:3.9) {Has espresso};
  \node[font=\sffamily\bfseries] at (210:3.9) {Has milk};
  \node[font=\sffamily\bfseries] at (330:3.9) {Served cold};

  % Drinks in regions
  \node at (90:1.9) {short black};                 % espresso only
  \node at (210:1.9) {babyccino};                  % milk only
  \node at (330:1.9) {cold brew};                  % cold only
  \node at (150:1.4) {flat white};                 % espresso + milk
  \node at (30:1.4) {iced long black};             % espresso + cold
  \node at (270:1.4) {milkshake};                  % milk + cold
  \node at (0,0) {iced latte};                     % all three
  \node at (0,-4.6) {pour-over};                   % outside all
\end{tikzpicture}
\end{document}
gallery/A three-set coffee Venn diagram/Ember 1, run 1

Circles turned on their side, and four labels across an edge.

modelfireworks/ember-1tasktikz-coffee-venn@v1date2026-09-25rounds1 of 8 allowedcost$0.0416thinkingmediumtokens10,665 in, 1,321 out, of which 550 reasoningtime22 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
A three-set coffee Venn diagram, by Ember 1, run 2run 2 · 1r · $0.0445Plain outlines, every drink right, and three labels across an edge.A three-set coffee Venn diagram, by Ember 1, run 3run 3 · 1r · $0.0365Every drink right, with iced long black and milkshake on a line.
same prompt, other modelsall 50 runs on A three-set coffee Venn diagram →
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.