Does a model know a knit stitch is wider than it is tall?

In short

Five of six models know it. GLM 5.3 flashx drew stitches tall and said so.

Knitting chart: coffee bean cup cosy, by gpt-6.1-sol
GPT-6.1 Sol, run 2. Cells at 24 stitches by 32 rounds to 10 cm, wider than tall like a real stitch.$0.06SVGPNGcosy.svg
Knitting chart: coffee bean cup cosy, by glm-5.3-flashx
GLM 5.3 flashx, run 2. Cells taller than wide, with a note that knit stitches are about 4 by 5.$0.01SVGPNGcosy.svg

Finding

A knit stitch is wider than it is tall, so a bean drawn on square cells knits up squashed. I asked for a cup cosy chart with coffee beans "drawn so the beans come out the right shape in the finished fabric", which only works if the model knows this.

Five of six models knew that stitch is wider than it is tall. GPT-6.1 Sol, Opus 5.5, Haiku 5.5 and DeepSeek 4.1 Flash drew stitch-shaped cells in all three runs, and GPT-6 Luna in two. GLM 5.3 flashx drew tall cells instead.

But of the models that got the stitch shape right, only Sol passed every check in all three runs. The others drew beans a little too round to knit up as beans.

The 18 runs cost $0.92.

By email

How it failed

false, malformed

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