Run: 2026-09-23-01M36SDF72QWZMQ4NABQG30V4P

Run Details

Duration:
3m 38s
Cost:
$0.070930
Provider:
xAI

Model input

System
You are an expert novelist with a gift for vivid, immersive prose. You write in tight third-person limited point of view with a strong narrative voice. Your prose is clean, precise, and engaging — you favor strong verbs, concrete details, and natural-sounding dialogue. You will be given a story bible (codex) containing canonical details about characters, locations, items, and lore. Use these details to ground your writing in the established world. Stay consistent with the codex. Write only the prose of the scene. Do not include titles, chapter headings, markdown formatting, or any commentary before or after the scene.
User/Human
<codex> <character id="4416" name="Detective Harlow Quinn" aliases="Quinn, Detective Quinn, Harlow" pronouns="she/her" species="Human" storyRole="Antagonist"> <eyeColor>brown</eyeColor> <hair>closely cropped salt-and-pepper</hair> <height>5'9"</height> <age>41</age> <jawline>sharp jaw</jawline> <watch>worn leather watch on her left wrist</watch> <bearing>military precision</bearing> <description>A Metropolitan Police detective with 18 years of decorated service who suspects the clique is involved in criminal activity.</description> <backstory>She lost her partner, DS Morris, during a case three years ago under unexplained circumstances that had supernatural origins she doesn't yet understand.</backstory> </character> <character id="4414" name="Eva Kowalski" aliases="Eva, Evie" pronouns="she/her" species="Human" storyRole="Best Friend"> <eyeColor>green</eyeColor> <hair>curly red</hair> <height>5'4"</height> <age>26</age> <glasses>round glasses</glasses> <satchel>worn leather satchel full of books</satchel> <freckles>freckled complexion</freckles> <nervousHabit>tucking hair behind her left ear</nervousHabit> <description>Aurora's childhood friend and an occult researcher.</description> <backstory>Moved to London two years before Aurora and works as a research assistant at the British Museum's restricted archives. She holds a master's degree in Ancient History from Oxford.</backstory> </character> <location id="856" name="The Veil Market" aliases="Veil Market, the Market, underground market" realm="Earth"> <currentLocation>abandoned Tube station beneath Camden</currentLocation> <entryRequirement>bone token</entryRequirement> <schedule>moves locations every full moon</schedule> <description>A hidden supernatural black market that sells enchanted goods, banned alchemical substances, and information.</description> </location> <item id="2004" name="Veil Compass" aliases="the Compass, shadow compass" type="Tool" origin="The Veil Market"> <casingMaterial>small brass compass</casingMaterial> <faceMarkings>face etched with protective sigils</faceMarkings> <needle>points toward the nearest supernatural rift or portal</needle> <patina>casing has a patina of verdigris</patina> <creator>crafted by a Shade artisan</creator> <description>A compass attuned to supernatural energy.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the mystery genre. A detective arrives at a crime scene in an unusual location. Something is wrong — the evidence doesn't add up. A colleague is present, offering a different interpretation. Through careful observation and deduction, the detective begins to see what others have missed. Use the codex entries above as your world reference for characters and setting. Only include the prose of the scene without any markdown or commentary.

Model response

AI
The service stairs under Camden smelled of wet iron and old tickets. Harlow Quinn took them at a measured pace, left hand on the rail, the worn leather of her watch catching the bare bulb at the second landing. The light glanced off the close crop of her salt-and-pepper hair and left her brown eyes in their own shadow. Two twenty-one. The street constable had logged the call at one. She disliked missing time. She disliked, more, the bone token cooling in her coat pocket, the twin of the one nailed above the stair mouth, which the constable had not been able to explain and which she had not tried to, not yet. At the bottom the dark broke, and the station was simply there. An abandoned platform. Dead rails. A roundel bleached to the color of a bruise. Police lamps stood at either end, and between them someone had built a market. Canvas roofs. Tables. Jars stoppered with wax. Bundles in oilcloth. A row of little cages holding nothing but shadow. The stalls ran the length of the platform as if they had always been there, which Quinn knew, from the thin file Eva Kowalski had pressed on her two days ago, was a lie of scheduling. The Veil Market moved at the full moon. The moon had been full on Tuesday. This was Friday. The Market should have been gone. "Detective." Sergeant Voss peeled himself off a pillar, raincoat shining, voice pitched for a room that did not contain a corpse. "Heart, if you ask me. Or the bottle. Squatters get in, one of them arranges his blankets like a jumble sale, and then his heart packs in. We'll have a name by morning and a form by noon." "You haven't moved him." "I know better than to spoil your evening." Voss jerked his chin toward the far stall. "Your museum consultant is already rewriting mine." Eva Kowalski rose from a crouch as Quinn approached, five-four against Quinn's five-nine, curly red hair fighting a clip, round glasses fogged at the edges from the cold. Freckles stood out across her nose. The leather satchel at her hip looked one book heavier than the stairs had enjoyed. She tucked a curl behind her left ear and did not smile. "You're late," Eva said. "I'm on time for the second story. I've already heard the first." Quinn stopped where the floor changed under her shoes. Grey street grit, carried down the stairs, ended in a clean line. Beyond it the platform wore a pale dust, fine as flour, marked by a single dragged pair of heels. She filed that. "Show me." The man lay on his side between two tables, trader's coat open, one palm up, as if he had been offering something and forgotten the end of the gesture. Quinn crouched. Old drill kept her knees together, her hands off the ground, her weight over the balls of her feet. Forty-one years old, and eighteen of them spent in rooms like this, if never quite in a room like this. She did not know his face. She looked at it only long enough to be sure she would know it later. No wound she could see without turning him. No bottle. The smell was cold stone and lamp oil, not spirits. A small brass compass lay just past his fingers. Verdigris had taken the casing in a soft green weather. The face was cut with marks, loops and bars, a geometry that refused to settle into an alphabet. The needle trembled and held, pointing down the platform toward a service door stenciled KEEP CLEAR. "All right," Quinn said. "Your version." Eva knelt opposite. Her voice dropped into the careful register she used when the archives were listening. "This is the Veil Market, or what's left when it leaves. It sells what you don't put on a charge sheet. It requires a bone token to enter. He has one in his coat. I looked. I didn't take it. The compass is the thing that matters. Shade-made. A Veil Compass. The needle finds the nearest rift. Those cuts are protective sigils. They're supposed to let you seek a crossing without being taken by it. My reading is he came after the Market moved, trusted the needle, and the protection failed. Something opened at the end of the platform. It didn't want all of him. That's why you have a body and not a disappearance." Voss made a sound that was not quite a laugh. "Or he had a dicky heart and a hobby. I like mine. Mine doesn't require a seminar." "Yours requires a bottle you haven't found," Quinn said, without looking at him. "And blankets. I don't see blankets. I see stock." She stood. The sharp line of her jaw tightened against the cold, and she squared herself the way the job had taught her before the job had a name for what she was looking at. She walked the row as she would a perimeter, eyes moving, hands still. A jar, tipped with a gloved knuckle, was light as air and sealed against nothing. An oilcloth bundle opened at one corner on folded newspaper, today's date, not goods. A tray that had read, at ten feet, as finger bones resolved into curtain rings wired to look like a collection. The cages latched from the outside and had never held so much as a feather. The canvas roofs were new. The creases in them still held the shape of a shop fold. "This was dressed," she said. "Not abandoned. Dressed. For us." Eva pushed her glasses up. Her hand hesitated at her hair and dropped. "You can't be sure. Half of what they sell is meant to pass for ordinary. That's the point of the place. And the residue of a Market can linger. I've read accounts." "You've read accounts. I'm reading a floor." Quinn nodded at the pale dust. "One set of heel marks, dragged. He was put here. He did not fall out of the air, and he did not wander a stall row looking for a door. Street grit stops at the threshold. Whoever built this did not come down those stairs tonight after the call. They were here before the dust was laid, or they used the door your compass is so devoted to." Voss shifted his weight. "So a mate staged a jumble and ran. Still a heart." "Still no bottle," Quinn said. "Come look at the instrument before you close it." She did not pick the compass up. She brought the lamp down until the brass threw a hard shadow, and she made them see it with her. The verdigris sat in the seams and the screw-heads, old, earned, the green of years in a wet pocket. The sigils did not share that age. Their grooves were bright. In the deepest cut a tiny curl of fresh brass still clung, pale as a shaving on a workshop bench. The marks had been cut through the patina, not under it. Weather had not had time to enter the lines. "You told me a Shade artisan cuts the protection into the work, and the world stains it after," Quinn said. "This was stained first. Someone bought a cheap brass compass, surplus or pawn, I don't care which, and etched a costume onto it with a new burin. Steady hand. Not a ritual hand. A careful one. The needle isn't hunting a rift. A fresh-cut face doesn't change what iron does to a needle." She crossed to the KEEP CLEAR door. Voss had taped it, which was the first useful thing he had done. She left the tape intact. Low on the frame, a crescent of scraped paint. On the concrete, in the pale dust, a clean circle the size of a palm, and a smear where the circle had been lifted in a hurry. She could picture the object without needing it in a bag yet. A magnet, or a lump of iron, set where the needle would have no choice, removed when boots hit the upper stair. "Planted," she said. "Then collected. Leave the story. Take the proof." Eva had gone quiet in the way that meant her mind was running ahead of her mouth. She tucked the curl behind her left ear again. "The token is real. I know that carving. Bone tokens aren't newspaper and curtain rings. If the token is real, the crossing could still be real. The forgery could be a desecration, not a prop. People deface sigils when they want them to fail." "Then we treat the token as evidence and not as a verdict." Quinn went back to the open hand. She did not slide the bone free. She tilted the lamp until the inner curve, the part a thumb would not polish, gave up a line of scratching so small she had nearly taken it for a crack. A letter. A year. A hyphen. Four digits. The hand that made them had been trying not to be seen by anyone who believed in doors. "Archive mark," she said. Eva's breath caught. "That isn't a maker's sign." "No. It's an acquisition number. The same shy little system that's on half the flyleaves in your satchel. Museum hand, not yours. You didn't put it on him. I can see that in your face, so don't spend the denial." Quinn held her eyes, green and startled and already recalculating. "Somebody with a key to a restricted drawer did, or somebody who lifted it from one. Your rift needs a Market that left on Tuesday, goods that were never stock, a compass forged this week, and a catalogued bone carried down here to be found. His heart needs a bottle, a blanket, and a man who died where he fell. I don't have those either." Above the platform a radio spat Voss's name and asked, bored, whether the detective had called it yet. Voss did not answer. He was looking at the dust as if it had insulted him personally. Quinn checked the watch on her left wrist. Two thirty-eight. Call at one. Magnet gone before the lamps came down. Stalls arranged for an audience that was meant to arrive with its opinions already in its mouth. A sergeant who wanted a form. A researcher who would know a Veil Compass at a glance and supply the monograph. A detective who had lost a partner, three years back, in a room that had also been tidy until it was not, and who could be counted on not to walk away from the unexplained. She felt the shape of it then, clean as a tripwire under a polite floor. Not the means of the killing. That would come in the postmortem, in the service tunnels, in whatever name the archive number returned. The purpose of the scene. It had been built to be misread. The wrongness had been given the right costume, and both readings on offer, the ordinary and the uncanny, had been invited in advance. Three years ago the unexplained had taken Morris and left her with a report that would not hold. She still did not have a name for what had happened in that room. She knew, however, the difference between a thing that refused explanation and a thing that had been fitted with one. This platform had been fitted. Every oddity was doing a job. The stalls for atmosphere. The compass for direction. The token for authority. Even Eva, whether she knew it or not, for vocabulary. "It isn't a heart," she said to Voss. "And it isn't a failed crossing. Not this one. Tell them upstairs not to open that door. Whatever was meant to be followed isn't the crime. The crime is that we were meant to follow it." Eva stood with her hand on the satchel strap, the theory she had carried down the stairs coming apart behind her glasses. She looked young in the lamp light, twenty-six and suddenly unsure of the book that had always answered. Her fingers found the curl at her left ear and left it there. Quinn did not soften it. Softening was how the next hour got lost, and she had already lost twenty minutes between a payphone and a platform. "Someone knows the literature," she said. "They knew what you would see. They knew what he would dismiss. They counted on both." She looked once more at the bright cuts in old green brass, at the dragged heels, at the number hiding in bone. The needle still shivered toward a door that had nothing behind it but a scraped circle in the dust. "That's what was missed. Not a door. A reader."
created_at"2026-09-23T09:26:43.175Z" 9/23/2026, 9:26:43 AM
model"x-ai/grok-4.7-20260916"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency741
moderation_latency(null)
generation_time217622
tokens_prompt896
tokens_completion5790
native_tokens_prompt2070
native_tokens_completion14375
native_tokens_completion_images(null)
native_tokens_reasoning11760
native_tokens_cached1152
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.0709296
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790155603-AqZY5PnFTD8BEbrLonzy"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790155603-gfN0xBp7OEy9ksLaj1n5"
upstream_id"371fec8e-e02d-9b0a-8603-e178fc416fbc"
provider_responses
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endpoint_id"c942f37a-87e1-4fa8-83d0-8c67fda4fb4a"
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is_byokfalse
latency663
model_permaslug"x-ai/grok-4.7-20260916"
provider_name"xAI"
status200
total_cost0.0709296
cache_discount0.0013824
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags17
adverbTagCount1
adverbTags
0"She looked once [once]"
dialogueSentences37
tagDensity0.459
leniency0.919
rawRatio0.059
effectiveRatio0.054
97.64% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount2123
totalAiIsmAdverbs1
found
0
adverb"suddenly"
count1
highlights
0"suddenly"
100.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found(empty)
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
81.16% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount2123
totalAiIsms8
found
0
word"measured"
count1
1
word"weight"
count2
2
word"trembled"
count1
3
word"resolved"
count1
4
word"pawn"
count1
5
word"etched"
count1
6
word"uncanny"
count1
highlights
0"measured"
1"weight"
2"trembled"
3"resolved"
4"pawn"
5"etched"
6"uncanny"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences131
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount1
narrationSentences131
filterMatches
0"watch"
1"see"
hedgeMatches
0"tried to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences151
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen116
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords2123
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions13
unquotedAttributions0
matches(empty)
97.99% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions44
wordCount1442
uniqueNames12
maxNameDensity1.04
worstName"Quinn"
maxWindowNameDensity2
worstWindowName"Quinn"
discoveredNames
Camden1
Quinn15
Eva9
Kowalski2
Veil2
Market2
Tuesday1
Friday1
Voss8
Grey1
Compass1
Morris1
persons
0"Camden"
1"Quinn"
2"Eva"
3"Kowalski"
4"Market"
5"Voss"
6"Compass"
7"Morris"
places
0"Grey"
globalScore0.98
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences89
glossingSentenceCount1
matches
0"not quite a laugh"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount2123
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences151
matches
0"share that age"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs37
mean57.38
std38.69
cv0.674
sampleLengths
0113
140
279
359
44
523
661
74
857
9111
1053
116
12132
1327
1422
15130
1610
1745
1881
1915
2014
2197
2273
2395
2411
2570
2683
274
288
29115
3035
3193
3273
3385
3444
3553
3698
86.51% Passive voice overuse
Target: ≤2% passive sentences
passiveCount7
totalSentences131
matches
0"been gone"
1"been lifted"
2"was meant"
3"been built"
4"been given"
5"been invited"
6"been fitted"
7"been fitted"
56.32% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount5
totalVerbs232
matches
0"were listening"
1"was looking"
2"was running"
3"was looking"
4"was doing"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences151
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1451
adjectiveStacks0
stackExamples(empty)
adverbCount28
adverbRatio0.019297036526533425
lyAdverbCount7
lyAdverbRatio0.004824259131633356
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences151
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences151
mean14.06
std14.48
cv1.03
sampleLengths
012
127
220
32
49
54
639
712
83
92
109
1114
122
131
144
153
169
1736
188
197
203
216
2221
2338
244
2516
267
2728
286
2915
3012
314
3221
3312
3419
353
362
3729
382
3919
4020
416
4215
438
442
4510
469
4710
4818
4916
56.95% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats19
diversityRatio0.41721854304635764
totalSentences151
uniqueOpeners63
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences111
matches(empty)
ratio0
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount27
totalSentences111
matches
0"She disliked missing time."
1"She disliked, more, the bone"
2"She tucked a curl behind"
3"She filed that."
4"She did not know his"
5"She looked at it only"
6"Her voice dropped into the"
7"She walked the row as"
8"Her hand hesitated at her"
9"She did not pick the"
10"She brought the lamp down"
11"Their grooves were bright."
12"She crossed to the KEEP"
13"She left the tape intact."
14"She could picture the object"
15"She tucked the curl behind"
16"She did not slide the"
17"She tilted the lamp until"
18"He was looking at the"
19"She felt the shape of"
ratio0.243
27.57% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount96
totalSentences111
matches
0"The service stairs under Camden"
1"Harlow Quinn took them at"
2"The light glanced off the"
3"The street constable had logged"
4"She disliked missing time."
5"She disliked, more, the bone"
6"An abandoned platform."
7"A roundel bleached to the"
8"Police lamps stood at either"
9"Jars stoppered with wax."
10"A row of little cages"
11"The stalls ran the length"
12"The Veil Market moved at"
13"The moon had been full"
14"This was Friday."
15"The Market should have been"
16"Sergeant Voss peeled himself off"
17"Voss jerked his chin toward"
18"Eva Kowalski rose from a"
19"Freckles stood out across her"
ratio0.865
45.05% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences111
matches
0"Even Eva, whether she knew"
ratio0.009
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences57
technicalSentenceCount0
matches(empty)
95.59% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags17
uselessAdditionCount1
matches
0"Quinn said, without looking at him"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags10
fancyCount0
fancyTags(empty)
dialogueSentences37
tagDensity0.27
leniency0.541
rawRatio0
effectiveRatio0
88.1594%