How good are models at fixing things?

In short

Fixing is a different skillset than making

Finding

Some tasks are easier to fix than others

I sent outputs that failed back to models, told them what was wrong and asked them to fix it. Here is each task before, fixed and not fixed.

The V60

In a previous run Haiku 5.5 drew the paper filter under the dripper. I sent that failed run to the models and asked them to fix it. All models were able to fix the issue.

An exploded V60 diagram with the cone at the top, the paper filter below it and the glass server at the bottom.
Before. Haiku 5.5's V60, filter under the cone.$0.01SVGPNGv60.svg
An exploded V60 diagram: a paper filter at the top, the ridged cone below it and the glass server at the bottom, joined by dashed lines, each part labelled on the right.
Haiku 5.5, run 1. Fixed its own drawing.$0.03SVGPNGv60.svg

The knitting chart

In a previous run DeepSeek 4.1 Flash drew a bean that knits 2.4 times as long as it is wide. I asked the models to fix it and Deepseek did but Haiku did not manage to fix it.

A knitting chart of coffee beans, each bean long and thin in the grid.
Before. DeepSeek 4.1 Flash, 2.4 times too long.$0.05SVGPNGcosy.svg
A knitting chart of four coffee beans in a band: each bean is a dark brown S with tan grooves, drawn in whole stitches on a grid numbered 1 to 40 across and 1 to 44 up.
DeepSeek 4.1 Flash, run 1. Fixed.$0.24SVGPNGcosy.svg
The same knitting chart, the beans drawn wider and flatter so they spread across more stitches and fewer rows.
Haiku 5.5, run 2. Not fixed.$0.05SVGPNGcosy.svg

The Venn

In a previous run Kimi K3 put the word milkshake on the edge of a circle. The job is to move that one word clear of every line and keep it in its region. Same I sent it to the models. Kimi fixed it in one run but not in a second run.

A three-circle Venn of coffee drinks, with milkshake sitting on the outline of the green circle.
Before. Kimi K3, milkshake on the line.$0.08SVGPNGPDFvenn.tex
The same Venn, with milkshake moved clear of the lines inside its region.
Kimi K3, run 1. Fixed.$0.40SVGPNGPDFvenn.tex
The same Venn, with milkshake moved right and up and still touching the green circle.
Kimi K3, run 2. Moved, and still on the line.$0.09SVGPNGPDFvenn.tex

The spoon

GLM 5.3 FlashX drew a spoon lying across the mouth of the cup. Deepseek managed to fix it. GLM failed to fix its own previous mistake.

Before. GLM 5.3 FlashX, spoon on top.$0.04MP4stir.html
DeepSeek 4.1 Flash, run 1. Fixed.$0.28MP4stir.html
GLM 5.3 FlashX, run 1. Not fixed.$0.03MP4stir.html

GLM did manage to fix it in another run.

Repair Fixed Unchanged Board
V60 order 9 of 9 9 of 9 retired
Bean knits true 7 of 9 9 of 9 retired
Label off the edge 7 of 9 9 of 9 live
Spoon inside the cup 4 of 9 9 of 9 live

So I retired two tasks because two models cleared every run.

The 35 runs cost $3.24.

By email

How it failed

incomplete, false

Older, 19 Oct

Do models know how to stir a coffee?

Newer, 6 Nov

How does Kimi K3.1 Pro do on the five busiest tasks?