Knitting chart: coffee bean cup cosy, by claude-opus-5.5 — claude-opus-5.5 · round 2 of 2 · seed 3$0.14SVG PNG cosy.svg

A knitting chart for a coffee-bean cup cosy, by Opus 5.5, the render after round 1 — 12What the model saw after each round. The picture above is the round that was scored, round 2.

gallery/A knitting chart for a coffee-bean cup cosy/Opus 5.5, run 3

A knitting chart for a coffee-bean cup cosy: Opus 5.5

modelanthropic/claude-opus-5.5taskknitting-bean-cosy@v1, checks c1, harness h1date2026-10-11rounds2 of 8 allowed, 12 minutes on the clockcost$0.1440thinkingmediumtokens36,043 in, 5,139 out, of which 1,778 reasoningtime1 min 8 s

A real chartdecided by a number, from the filepass

Stitches wider than talldecided by a number, from the filepass

Bean knits truedecided by a number, from the filepass

Has a keydecided 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

A knitting chart for a coffee-bean cup cosy, by Opus 5.5, run 1

run 1 · 2r · $0.1768

A knitting chart for a coffee-bean cup cosy, by Opus 5.5, run 2

run 2 · 1r · $0.1113

same prompt, other modelsall 21 runs on A knitting chart for a coffee-bean cup cosy →

the prompt it was given

Make an SVG knitting chart for a cup cosy with a coffee-bean motif, drawn so the beans come out the right shape in the finished fabric.

Frozen at v1. This model got this and nothing else.

ground truth

A knit stitch is wider than it is tall, about 5 stitches to 7 rows over the same distance, so a bean drawn on square cells knits up squashed. The chart is read from the SVG: its grid, which cells are coloured, and the gauge its cells are drawn at. Each bean is then measured as it would come out in the fabric, from its stitches and rows at that gauge, and a coffee bean is 1.3 to 1.8 times as long as it is wide. How it is scored, and this run's files on GitHub.