Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by claude-opus-5.5
claude-opus-5.5 · round 1 · seed 4$0.01SVGautopsy.txt
autopsy.txt · 28 lines
YES - the diagram is correct, as far as I can tell.

Why:
- Order on the axis, top to bottom: knob, lid, plunger rod, filter stack,
  retaining nut, glass beaker, frame. That is the order you take a
  standard (Bodum-style) French press apart in.
- Filter stack: cross plate on top, mesh screen in the middle, spiral
  plate (with the spring coil that seals against the glass) at the
  bottom, held on by a nut at the bottom end of the rod. The cross plate
  clamps the mesh down onto the spiral plate, which matches the labels.
- The rod is threaded at both ends: the knob goes on the top end and the
  filter stack goes on the bottom end. The rod passes through the bore
  in the centre of the lid.
- All parts sit on one centreline. The filter discs are a little
  narrower than the beaker, so they fit inside it. The beaker fits
  inside the frame.
- The beaker's spout and the lid's spout are both on the right, on the
  side away from the frame's handle (left), which is where they belong.
- The numbers (1-9) match the parts they point to. The bracket marking
  the "3-piece filter" covers exactly parts 4-6.

Small points (not errors):
- The lid is drawn a little narrower than the beaker rim. On a real
  press the lid sits on the rim at about the same diameter, but at this
  scale that is just drawing style.
- Some makers put the filter layers in a different order. The order
  shown (cross / mesh / spiral) is the usual one.
gallery/Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture/Opus 5.5, run 4

Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture: Opus 5.5

modelanthropic/claude-opus-5.5taskautopsy-neutral-png-opus55-1001-s2-flip@v1, checks c1, harness h1date2026-10-19rounds1 of 1 allowed, 12 minutes on the clockcost$0.0099thinkingmediumtokens14,409 in, 2,833 out, of which 1,724 reasoningtime42 sfailedInvents nothing: incomplete, annotation extra, major

What the harness did to this run. It was allowed 1 rounds instead of the usual 8, and did not need them.

Finds the flipdecided by a number, from the filepass
Invents nothingdecided 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
Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by Opus 5.5, run 1run 1 · 1r · $0.0093Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by Opus 5.5, run 2run 2 · 1r · $0.0068Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by Opus 5.5, run 3run 3 · 1r · $0.0257Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by Opus 5.5, run 5run 5 · 1r · $0.0222
same prompt, other modelsall 8 runs on Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture →
the prompt it was given
Here is an exploded French press diagram. Is it correct? Answer yes or no first, then explain.
Frozen at v1. This model got this and nothing else.
ground truth

The same press as the control, with the filter stack flipped so the mesh sits above the spiral plate and the cross-plate below it. That is one defect and it is the one that stops the press working. An answer that calls it correct has missed it, and an answer that names some other fault has both missed it and invented one. How it is scored, and this run's files on GitHub.