The Standings → Claude Opus 5 (xhigh)
Anthropic
xhigh reasoning effort · via Claude CLI · judged by Claude Sonnet 5 · the setting shown on the standings; also run at high75.5 medium71.5
Results from run ‘first’: ten items, ten verdicts.
Claude Opus 5 (xhigh) scores 80 on craft, 17 points above the field’s 63 and 12 points short of the authors themselves. Its shape differs from the field’s: relatively strong on the author’s voice and sentence-level prose, relatively weak on momentum. On the mechanical checks it kept to the brief’s word range on 7 of 10 items.
The record: 10 items · 10 verdicts · 0 errors · 2,450 words on average · est. generation cost $3.07
Eight dimensions, each 0–100, averaged over ten items; the author’s real chapter was in the room every time.
Craft by dimension, 0–100 · judged by Sonnet 5 beside the author’s real chapter
The authors themselves average 93 on the five writing dimensions, the field 63, this model 80. Hover or focus a bar for the field and the authors on that dimension.
The judge’s one-sentence best quality and worst flaw for each chapter, written for a general reader.
Best The narration has real wit and control from the first sentence, catching Sir Walter's vanity in a single well-turned ironic line.
Worst The pivot to the letting idea feels a little too logically signposted (Shepherd tries plan after plan) rather than sparked by the moment, so it reads slightly mechanical.
Best The moment Mary steps out onto the dark moor is vividly physical and sensory, and it captures her stubborn fearlessness better than any line of exposition could.
Worst A few of the interpretive touches, like comparing Craven's glance at Mary to looking at an unwanted piece of furniture, are a shade more explicit and modern-literary than Burnett's own plain style.
Best Georgette's return scene, sitting alone eating a hard-boiled egg after being dropped by the rich young men, makes her feel like a real person rather than a loose thread to tie off.
Worst The final walk along the river runs on a bit past the point where the night's emotional weight has already landed, so the very last stretch loses some of its punch.
Best Poirot's unhurried, seemingly trivial investigation of the grounds — rescuing a snail, admiring flower beds, chatting about tomatoes — captures his character precisely and pays off in a genuinely eerie closing riddle.
Worst The opening weather description ('smelt of wet earth and lime blossom') is more lyrical and scene-painting than Christie's usually brisk, unadorned style.
Best The image of the forbidden uncle's name lying in the house 'like a dead rat behind a wainscot' is a vivid, perfectly period piece of writing.
Worst It stops to explain the whole backstory of the seven-and-sixpence debt in full, which drains some charm from what works better left as a running mystery.
Best The final telegram is a genuinely unsettling twist that quietly recasts an earlier reassuring letter as a forgery, without breaking the no-supernatural rule.
Worst The characters sometimes explain exactly how they feel instead of letting the reader work it out from what they do.
Best The Senior Conservative Club scene, where Eve unknowingly criticises Lord Emsworth to his own face before he reveals "I am Emsworth," is a sharp, well-built comic reversal that lands exactly in the book's register.
Worst The umbrella-and-note return is written as two disconnected fragments (the note is composed at a post office, then the umbrella alone is handed to the porter) so the actual moment of leaving the note is never shown, only confirmed after the fact.
Best The bank scene and the widow's hotel visit are both driven by sharp, evasive dialogue that reveals character through what people won't say, rather than through the narrator explaining them.
Worst Near the end the narrator lapses into a little too much tidy, philosophical explaining of the mystery to himself, which is wordier and more reflective than the clipped, say-nothing-extra voice the rest of the chapter earns.
Best The telegram passage nails Léonce's stiff, transactional voice in one line, and the lady in black's closing remark ("It is the ones who are not afraid of it that it takes") gives real menace to an otherwise quiet scene.
Worst The narration often states the point outright right after showing it (e.g., flatly saying "She did not tell anybody" immediately after we've already seen her hide it), so discoveries feel explained rather than felt.
Best The argument between the narrator and Ogilvy feels like two stubborn, real people talking past each other, surrounded by a wonderfully specific crowd of gawkers with competing theories.
Worst The burned boy's injury is described in more graphic, gory detail ('seared to the bone') than fits the calm, understated voice used everywhere else in the piece.
Headline, compliance and craft for each chapter, 0–100.
| Item | Headline | Compliance | Craft | Words |
|---|---|---|---|---|
| Persuasion item 001 · after ch. 1 · Jane Austen | 86.0 | 100 | 86 | 2,403 |
| The Secret Garden item 013 · after ch. 2 · Frances Hodgson Burnett | 85.2 | 100 | 85 | 2,253 |
| The Sun Also Rises item 021 · after ch. 3 · Ernest Hemingway | 82.9 | 100 | 83 | 2,072 |
| The Mysterious Affair at Styles item 017 · after ch. 3 · Agatha Christie | 81.0 | 100 | 81 | 2,594 |
| The Moonstone item 011 · after ch. 8 · Wilkie Collins | 79.9 | 100 | 80 | 2,845 |
| Dracula item 015 · after ch. 5 · Bram Stoker | 79.6 | 100 | 80 | 2,645 |
| Leave It to Psmith item 022 · after ch. 3 · P. G. Wodehouse | 77.2 | 95 | 81 | 3,169 |
| Red Harvest item 023 · after ch. 2 · Dashiell Hammett | 75.1 | 100 | 75 | 2,342 |
| The Awakening item 016 · after ch. 7 · Kate Chopin | 73.6 | 100 | 74 | 1,716 |
| The War of the Worlds item 006 · after ch. 1 · H. G. Wells | 71.9 | 90 | 80 | 2,459 |
Words written per item, against each brief’s maximum.
Word count per item vs. brief maximum · run ‘first’
Seven of ten items landed inside their brief’s word range. The Moonstone and Dracula and Leave It to Psmith ran over by 45 and 45 and 369 words respectively.
Each verdict names the chapter’s single worst flaw, with evidence. Quoted verbatim from run ‘first’.
The umbrella-and-note return is written as two disconnected fragments (the note is composed at a post office, then the umbrella alone is handed to the porter) so the actual moment of leaving the note is never shown, only confirmed after the fact.
Near the end the narrator lapses into a little too much tidy, philosophical explaining of the mystery to himself, which is wordier and more reflective than the clipped, say-nothing-extra voice the rest of the chapter earns.
The narration often states the point outright right after showing it (e.g., flatly saying "She did not tell anybody" immediately after we've already seen her hide it), so discoveries feel explained rather than felt.
A few of the interpretive touches, like comparing Craven's glance at Mary to looking at an unwanted piece of furniture, are a shade more explicit and modern-literary than Burnett's own plain style.
Automated screening results across the ten outputs.