A serving tray where four tables will only take three drinks, by glm-5.3-flashx
glm-5.3-flashx · round 2 of 2 · seed 1$0.03SVGPNGtray.svg
tray.svg · 117 lines
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  <text x="480" y="46" text-anchor="middle" font-family="Georgia, serif" font-size="30" fill="#f2e6c8">Order Tray — Six Drinks for Six Tables</text>

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  <!-- ===== Row 1 (hot drinks) ===== -->

  <!-- Cup 1: Table 1 — Decaf cortado (dairy, hot) -->
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    <text x="200" y="399" text-anchor="middle" font-family="Arial, sans-serif" font-size="14" fill="#e8d8b0">Decaf cortado</text>
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  <!-- Cup 2: Table 2 — Decaf oat vanilla latte (oat, decaf, vanilla, hot) -->
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    <text x="500" y="380" text-anchor="middle" font-family="Arial, sans-serif" font-size="18" font-weight="bold" fill="#f2e6c8">Table 2</text>
    <text x="500" y="399" text-anchor="middle" font-family="Arial, sans-serif" font-size="12.5" fill="#e8d8b0">Decaf oat vanilla latte</text>
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  <!-- Cup 3: Table 3 — Filter coffee (black, hot) -->
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    <text x="790" y="380" text-anchor="middle" font-family="Arial, sans-serif" font-size="18" font-weight="bold" fill="#f2e6c8">Table 3</text>
    <text x="790" y="399" text-anchor="middle" font-family="Arial, sans-serif" font-size="14" fill="#e8d8b0">Filter coffee</text>
  </g>

  <!-- ===== Row 2 (cold drinks + black hot) ===== -->

  <!-- Cup 4: Table 4 — Vanilla cortado (dairy, vanilla, hot) -->
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    <text x="200" y="590" text-anchor="middle" font-family="Arial, sans-serif" font-size="18" font-weight="bold" fill="#f2e6c8">Table 4</text>
    <text x="200" y="609" text-anchor="middle" font-family="Arial, sans-serif" font-size="14" fill="#e8d8b0">Vanilla cortado</text>
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  <!-- Glass 5: Table 5 — Iced oat latte (oat, cold) -->
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  <!-- Glass 6: Table 6 — Cold brew (black, cold) -->
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    <text x="790" y="590" text-anchor="middle" font-family="Arial, sans-serif" font-size="18" font-weight="bold" fill="#f2e6c8">Table 6</text>
    <text x="790" y="609" text-anchor="middle" font-family="Arial, sans-serif" font-size="14" fill="#e8d8b0">Cold brew</text>
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round 1 of 2
A serving tray where four tables will only take three drinks, by GLM 5.3 FlashX, the render after round 1
12What the model saw after each round. The picture above is the round that was scored, round 2.

A serving tray where four tables will only take three drinks: GLM 5.3 FlashX

modelz-ai/glm-5.3-flashxtaskcup-allocation-impossible@v2, checks c1, harness h1date2026-11-08rounds2 of 8 allowed, 12 minutes on the clockcost$0.0270thinkingmediumtokens53,740 in, 5,733 out, of which 1,951 reasoningtime1 min 11 s
Says it cannot be donedecided by a number, from the filepass
Reuses nothingdecided by a number, from the filepass

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
the prompt it was given
I'm a barista and I have six drinks ready to go out: - Vanilla cortado: dairy milk, vanilla syrup, hot - Decaf cortado: dairy milk, decaf, hot - Decaf oat vanilla latte: oat milk, decaf, vanilla syrup, hot - Iced oat latte: oat milk, cold - Cold brew: black, cold - Filter coffee: black, hot There are six tables, and each one has asked for something: - Table 1 only drinks dairy milk - Table 2 wants decaf - Table 3 wants vanilla - Table 4 wants dairy milk - Table 5 wants something cold - Table 6 wants black coffee Each table gets one drink. Each drink goes to one table. Draw the tray as tray.svg. Label every cup with its table number and the drink's name.
Frozen at v2. This model got this and nothing else.
ground truth

Tables 1, 2, 3 and 4 together will only take the three drinks A, B and C, so no serving of all six exists, and the checker confirms that with its own perfect-matching solver. The right answer says so and draws nothing. Every table still has a drink it will take on its own, so the shortage is only visible across the tables together. How it is scored, and this run's files on GitHub.