TikZ: a three-set coffee Venn diagram, by claude-haiku-5.5
claude-haiku-5.5 · round 3 of 3 · seed 2$0.01SVGPNGPDFvenn.tex
venn.tex · 30 lines
\documentclass[tikz,border=10pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{positioning}
\begin{document}
\begin{tikzpicture}[
  set/.style={circle, minimum size=4.4cm, draw=black, thick},
  item/.style={font=\small, align=center, text width=2.4cm},
]
  % Circles
  \node[set, fill=red!25, fill opacity=0.45] (E) at (-1.4,0.6) {};
  \node[set, fill=blue!25, fill opacity=0.45] (M) at (1.4,0.6) {};
  \node[set, fill=cyan!25, fill opacity=0.45] (C) at (0,-1.4) {};

  % Set labels
  \node[font=\bfseries\small] at (-3.3,3.0) {Has espresso};
  \node[font=\bfseries\small] at (3.3,3.0) {Has milk};
  \node[font=\bfseries\small] at (0,-4.2) {Served cold};

  % Drinks (each placed in the region it belongs to)
  \node[item] at (-2.5,0.8) {Short black};          % espresso only
  \node[item] at (2.5,0.8) {Babyccino};             % milk only
  \node[item] at (0,-3.0) {Cold brew};              % cold only
  \node[item] at (0,1.4) {Flat white};              % espresso + milk
  \node[item, text width=1.4cm] at (-1.2,-0.5) {Iced long black};     % espresso + cold
  \node[font=\footnotesize] at (1.26,-0.5) {Milkshake};             % milk + cold
  \node[item, text width=1.8cm] at (0,0) {Iced latte}; % all three
  \node[item] at (-4.6,-3.2) {Pour-over};           % none
\end{tikzpicture}
\end{document}
round 1 of 3
A three-set coffee Venn diagram, by Claude Haiku 5.5, the render after round 1
123What the model saw after each round. The picture above is the round that was scored, round 3.
gallery/A three-set coffee Venn diagram/Claude Haiku 5.5, run 2

A three-set coffee Venn diagram: Claude Haiku 5.5

modelanthropic/claude-haiku-5.5tasktikz-coffee-venn@v1, checks c2, harness h1date2026-10-08rounds3 of 8 allowed, 12 minutes on the clockcost$0.0053thinkingmediumtokens43,941 in, 7,147 out, of which 5,260 reasoningtime57 sfailedEvery drink in its region: false, relation misbound, major, cause: repair, near miss: 1 of 8 drinks out of their region or missing, its note said this very thing was right · No label on an edge: unreadable, geometry collides, minor, near miss: 1 of 8 labels on an edge, its note said this very thing was right
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 filefail
No label on an edgedecided by a number, from the filefail

There is no post about this one, since only some results need one, so the picture, the source and the scoring are here instead.

its other runs
A three-set coffee Venn diagram, by Claude Haiku 5.5, run 1run 1 · 1r · $0.0031A three-set coffee Venn diagram, by Claude Haiku 5.5, run 3run 3 · 1r · $0.0030
same prompt, other modelsall 61 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.