Run: 2026-05-01-01KQHQQTM137A9VNDKWTW5TWVZ

Run Details

Duration:
1m 25s
Cost:
$0.014848
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
Detective Harlow Quinn descended the rusted emergency stairs into the abandoned Tube station beneath Camden, the beam of her Maglite slicing through air thick with mildew and something metallic that clung to the back of her throat. Her boots rang against the metal treads with the crisp rhythm of eighteen years on the force, each step measured, deliberate. The worn leather watch on her left wrist read 2:43 a.m. She had been in bed when the call came. Now the platform stretched before her like a half-forgotten dream, littered with the wreckage of stalls that had no business existing in a decommissioned Underground station. Tarps lay crumpled beside splintered tables. Glass vials glinted under the crime-scene halogens, some still leaking fluids that shimmered violet and refused to soak into the concrete. Bundles of dried herbs dangled from snapped strings, swaying though the air was dead still. A brass scale lay toppled, its pans etched with symbols that hurt to look at directly. This was no squatters’ den. This was something else entirely, something that set her teeth on edge the way the Morris case had done three years earlier. “Quinn.” DS Reynolds straightened from beside the body, wiping his hands on his trousers. His face was pale beneath the portable lights, the glow turning his skin the color of old paper. “Hell of a place to find a stiff. Thought the lads were winding me up when they said Camden Market had gone subterranean.” Quinn crouched beside the victim without answering. Male, late thirties, dressed in a long coat of indeterminate color that smelled of ozone and wet wool. His throat had been opened ear to ear, yet the blood was wrong. It had pooled beneath him in a perfect circle, as though someone had poured it there after the fact. No arterial spray on the nearby stall. No droplets on the overturned crates. The edges of the wound were cauterized, black and shiny like meat left too long on a grill. “Evidence doesn’t add up,” she murmured. Reynolds snorted. “Looks straightforward to me. Turf war. These people—” he gestured at the bizarre wares “—were running some kind of high-end dope ring. Designer drugs, maybe. Victim argues with a supplier, supplier cuts his throat, grabs what he can carry, and legs it. We’ve seen it a hundred times, just with better lighting.” Quinn’s sharp jaw tightened. She had worked with Reynolds for eleven months since Morris and still couldn’t decide if his certainty was confidence or laziness. She turned the victim’s head with a gloved finger. No defensive wounds on the hands. No bruising at the jaw. The eyes were open, brown irises already clouding, but the expression wasn’t terror. It was surprise, almost recognition. Her gaze drifted to an object lying half under the man’s outstretched hand. A small brass compass, its casing gone green with verdigris. Protective sigils had been etched into the face, tight spirals and angular marks that made her skin prickle. The needle spun lazily, then stopped, pointing not north but at a bricked-up archway twenty feet down the platform. She picked it up. The metal was warm, unnaturally so. “Found that on him?” she asked. “Next to him. Probably nicked it from one of the stalls. You see the junk they’re peddling? Looks like half a goth shop and half a chem lab.” Quinn slipped the compass into an evidence bag, but not before noting how the needle continued to strain toward the arch even inside the plastic. She stood, scanning the platform again. The market had been in full swing when the killing happened; that much was clear from the scattered coins—some of them not coins at all, but tiny bone discs carved with runes. One lay near her boot. She crouched and turned it over. The disc was still warm, as though freshly bleached. Entry token, her instincts supplied, though she couldn’t say why the thought felt true. Movement at the top of the stairs caught her eye. A woman descended, curly red hair escaping a hasty bun, round glasses catching the light. Eva Kowalski. Quinn had seen her name in the initial report: research assistant from the British Museum who had apparently phoned in the discovery after “stumbling” onto the scene while chasing a lead on restricted archives. Convenient. Eva carried her worn leather satchel across her body like body armor. Freckles stood out against skin gone sallow under the halogens. She kept tucking a strand of hair behind her left ear, a nervous tell that hadn’t stopped since she reached the platform. “Detective Quinn,” Eva said, voice pitched low, precise. Oxford diction wrapped around a faint Polish edge. “They said you were the senior officer.” Reynolds folded his arms. “Ms. Kowalski was just leaving. This is a crime scene, not a bloody library tour.” “I was the one who found him,” Eva replied, green eyes flicking to the body and away again. “I’d arranged to meet my contact here. The market moves every full moon. Tonight it was supposed to be under the old Camden lock. When I arrived, the place was already like this.” Quinn studied her. The woman’s satchel bulged with books whose spines read like an occultist’s shopping list: *Codex Esotericum*, *Veil Theory and Practice*. Not the sort of thing a museum researcher usually hauled around at half past two in the morning. “Talk me through it,” Quinn said, ignoring Reynolds’s sigh. She kept her tone neutral, the way she did when a suspect was circling the truth without quite landing on it. Eva tucked the hair again. “This is the Veil Market. Enchanted goods, banned alchemicals, information you can’t get anywhere else. My contact was going to sell me a translation of a third-century Sumerian binding rite. When I came through the entrance—bone token, if you’re wondering—he was already dead. The stall was overturned. And that—” She pointed at the compass now sealed in Quinn’s evidence bag. “That’s a shadow compass. Shade-made. It points toward the nearest active rift. The fact that it’s still spinning means the rift is close. And unstable.” Reynolds laughed once, sharp. “Rifts. Right. Look, love, with respect, we’ve got a dead man with his throat cut and a platform full of drug paraphernalia. Your fairy-tale market story is cute, but the DCI wants this wrapped before the morning papers decide we’ve got a serial killer targeting cosplayers.” Quinn raised a hand, cutting him off. She turned the compass bag over in her fingers. The needle inside jerked hard left, toward the bricked arch. She walked that way, boots scraping grit. The others followed. Up close, the bricks weren’t as solid as they appeared. A faint shimmer hung in the mortar lines, like heat haze on August tarmac. She pressed two fingers to the wall. Cold. But the compass needle thrashed as though trying to bore through the leather and plastic to reach it. “Reynolds,” she said quietly, “how do you explain the blood?” “What about it?” “No spray. Wound’s cauterized. And the pool is perfectly circular, like it was drawn with a protractor. That’s not how throats work. I’ve seen enough of them.” He shifted his weight. “Maybe the killer used a blowtorch after. Some of these chemicals they’re selling could do it. Acid, maybe.” “Acid doesn’t cauterize that cleanly. And it would have burned the floor too. Look at the concrete. Untouched.” Eva had gone very still beside her. The younger woman’s nervous habit had stopped; her hands now hung at her sides as though afraid to move. Quinn filed that away. She crouched again, playing her torch across the ground. Footprints led away from the body—two sets. One matched the victim’s worn brogues. The second set was barefoot, the prints too narrow for an adult man, the toes oddly long. They walked straight toward the shimmering wall and simply ended. No scuff marks. No retreat. Just gone. Quinn felt the old familiar twist in her gut, the same one that had kept her awake for months after Morris disappeared. Her partner had been found in an abandoned warehouse in Wapping with similar anomalies: blood in a perfect circle, no witnesses, symbols on the walls that forensics couldn’t identify. The case had been closed as “misadventure.” Quinn had never believed it. She straightened. “Ms. Kowalski. You said the market moves every full moon. How did you know where it would be tonight?” Eva hesitated, then reached into her satchel and produced a thin bone token identical to the one Quinn had seen on the ground. “Contacts. The restricted archives aren’t just books, Detective. Some of the curators… they trade. I’ve been studying the Veil for two years. Ever since I found references to it in a sealed Babylonian ledger. This place isn’t criminal in the way you think. It’s older than criminal law. But someone’s been weaponizing it. Selling rift keys to the highest bidder. My contact was going to give me names.” Reynolds muttered something about conspiracy nuts, but Quinn ignored him. She turned the compass in her hands again. The needle had settled, pointing directly at Eva now. Interesting. “The wound,” Quinn said. “You recognized it.” Eva’s freckled face creased. “It’s a severance. Not a knife. A rift blade. Cuts the soul at the same time as the flesh. That’s why the blood behaves like that. The body doesn’t realize it’s dead immediately. The circle is a containment sigil. Whoever did this didn’t want the victim’s shade coming back to talk.” Quinn felt the hairs on her arms rise. She should have been dismissing every word. Instead, pieces were sliding together in her mind with dreadful clarity. The lack of blood spatter. The barefoot prints that ended at a wall. The compass that refused to behave like a compass. And Eva Kowalski, standing in the middle of an illegal supernatural black market with a satchel full of forbidden knowledge and a perfectly reasonable explanation for being here at the exact right time. Too perfect. Quinn slipped the compass bag into her coat pocket instead of the evidence crate. Reynolds wouldn’t notice. He was already turning away to bark orders at the forensics team now picking their way down the stairs. “You think I did it,” Eva said quietly. It wasn’t a question. “I think you know more than you’re telling me,” Quinn replied, voice low. “And I think whatever’s behind that wall is connected to a case I lost three years ago. A partner. DS Morris. Same circular blood. Same wrongness.” Eva’s green eyes widened behind her glasses. For the first time, the nervousness looked genuine. “Then you’ve seen this before. The rifts are tearing. Someone’s accelerating it. The murder tonight wasn’t business. It was a message. The clique doesn’t want the archives digging any deeper.” Quinn’s grip tightened on the torch until the metal creaked. *The clique.* The same phrase her own confidential informant had used before vanishing. She looked at the shimmering bricks, at the compass needle now quivering with urgent purpose in her pocket, at the barefoot prints that should not have been able to disappear. Something was very wrong with this crime scene. Reynolds saw gang violence. The evidence saw something older, colder, and far more patient. And Detective Harlow Quinn, for the first time in three years, felt the shape of it. She turned to Eva. “You’re coming with me. We’re going to have a longer conversation about exactly what you research at that museum. And you’re going to tell me everything you know about rift blades, shadow compasses, and whoever killed this man to keep their secrets.” Eva tucked the stray curl behind her ear one last time. Her hand trembled. “Detective,” she said, “if we open that rift, we might not come back out the same. Some doors only open from one side.” Quinn gave her a thin, sharp smile that never reached her brown eyes. “Good,” she said. “Because I’ve been waiting three years to walk through the one that took Morris. And this time I’m not leaving without answers.” The compass in her pocket gave a single, decisive click, as though in agreement. Behind the bricks, something on the other side shifted, and for the first time since descending the stairs, Detective Harlow Quinn allowed herself to admit what she had tried so hard to forget. The world was larger than the Metropolitan Police. And it was bleeding through. (Word count: 1,478)
created_at"2026-05-01T12:20:42.247Z" 5/1/2026, 12:20:42 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency37734
moderation_latency(null)
generation_time84780
tokens_prompt923
tokens_completion4233
native_tokens_prompt934
native_tokens_completion5499
native_tokens_completion_images(null)
native_tokens_reasoning2889
native_tokens_cached64
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"
usage0.0148478
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provider_responses
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is_byokfalse
latency178
model_permaslug"x-ai/grok-4.20-20260309"
provider_name"xAI"
status200
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Evaluation details

Result Evaluator Details Meta Data
85.71% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags16
adverbTagCount2
adverbTags
0"she said quietly [quietly]"
1"Eva said quietly [quietly]"
dialogueSentences35
tagDensity0.457
leniency0.914
rawRatio0.125
effectiveRatio0.114
87.96% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount2077
totalAiIsmAdverbs5
found
0
adverb"lazily"
count1
1
adverb"perfectly"
count2
2
adverb"very"
count2
highlights
0"lazily"
1"perfectly"
2"very"
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)
73.52% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount2077
totalAiIsms11
found
0
word"measured"
count1
1
word"shimmered"
count1
2
word"etched"
count2
3
word"perfect"
count3
4
word"scanning"
count1
5
word"weight"
count1
6
word"familiar"
count1
7
word"trembled"
count1
highlights
0"measured"
1"shimmered"
2"etched"
3"perfect"
4"scanning"
5"weight"
6"familiar"
7"trembled"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"eyes widened/narrowed"
count1
highlights
0"eyes widened"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences132
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences132
filterMatches
0"watch"
hedgeMatches
0"try 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
maxSentenceWordsSeen68
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans3
markdownWords8
totalWords2073
ratio0.004
matches
0"Codex Esotericum"
1"Veil Theory and Practice"
2"The clique."
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions16
unquotedAttributions0
matches(empty)
50.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions69
wordCount1403
uniqueNames20
maxNameDensity1.57
worstName"Quinn"
maxWindowNameDensity3.5
worstWindowName"Quinn"
discoveredNames
Harlow3
Quinn22
Tube1
Camden1
Maglite1
Underground1
Morris3
Reynolds9
Kowalski2
British1
Museum1
Oxford1
Polish1
Theory1
August1
Wapping1
Eva14
Detective3
Metropolitan1
Police1
persons
0"Harlow"
1"Quinn"
2"Maglite"
3"Morris"
4"Reynolds"
5"Kowalski"
6"Eva"
places
0"British"
1"Oxford"
2"Wapping"
globalScore0.716
windowScore0.5
95.05% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences91
glossingSentenceCount2
matches
0"Museum who had apparently phoned in the disco"
1"as though trying to bore through the leather and plastic to reach it"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords0.965
wordCount2073
matches
0"not north but at a bricked-up archway twenty feet down the platform"
1"not coins at all, but tiny bone discs carved with runes"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount2
totalSentences151
matches
0"happened; that much"
1"walked that way"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs50
mean41.46
std27.86
cv0.672
sampleLengths
0104
185
255
388
46
554
663
770
86
928
1097
1162
1244
1323
1419
1551
1641
1730
1890
1950
2086
2110
223
2327
2422
2518
2630
2756
2863
2921
3091
3128
327
3355
3481
352
3636
3712
3839
3945
4053
4138
4246
4314
4423
4513
4625
4747
4813
493
91.97% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences132
matches
0"been opened"
1"were cauterized"
2"been etched"
3"been found"
4"been closed"
88.89% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs240
matches
0"was circling"
1"were sliding"
2"was already turning"
3"was bleeding"
86.09% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount2
semicolonCount2
flaggedSentences3
totalSentences151
ratio0.02
matches
0"The market had been in full swing when the killing happened; that much was clear from the scattered coins—some of them not coins at all, but tiny bone discs carved with runes."
1"The younger woman’s nervous habit had stopped; her hands now hung at her sides as though afraid to move."
2"Footprints led away from the body—two sets."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount771
adjectiveStacks0
stackExamples(empty)
adverbCount21
adverbRatio0.027237354085603113
lyAdverbCount7
lyAdverbRatio0.009079118028534372
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
mean13.73
std11.67
cv0.85
sampleLengths
037
121
211
39
426
56
621
715
816
95
1022
1114
1218
1323
147
1518
1613
1719
187
196
2018
216
222
2352
244
2521
269
276
285
2913
305
3113
3210
3318
3419
354
366
376
3828
3925
406
4132
425
436
449
4514
4610
4715
482
4934
58.72% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats8
diversityRatio0.3841059602649007
totalSentences151
uniqueOpeners58
28.25% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences118
matches
0"Instead, pieces were sliding together"
ratio0.008
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount31
totalSentences118
matches
0"Her boots rang against the"
1"She had been in bed"
2"His face was pale beneath"
3"His throat had been opened"
4"It had pooled beneath him"
5"he gestured at the bizarre"
6"She had worked with Reynolds"
7"She turned the victim’s head"
8"It was surprise, almost recognition."
9"Her gaze drifted to an"
10"She picked it up."
11"She stood, scanning the platform"
12"She crouched and turned it"
13"She kept tucking a strand"
14"She kept her tone neutral,"
15"She pointed at the compass"
16"She turned the compass bag"
17"She walked that way, boots"
18"She pressed two fingers to"
19"she said quietly"
ratio0.263
44.75% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount98
totalSentences118
matches
0"Detective Harlow Quinn descended the"
1"Her boots rang against the"
2"The worn leather watch on"
3"She had been in bed"
4"Tarps lay crumpled beside splintered"
5"Glass vials glinted under the"
6"A brass scale lay toppled,"
7"This was no"
8"This was something else entirely,"
9"DS Reynolds straightened from beside"
10"His face was pale beneath"
11"Quinn crouched beside the victim"
12"His throat had been opened"
13"It had pooled beneath him"
14"The edges of the wound"
15"he gestured at the bizarre"
16"Quinn’s sharp jaw tightened."
17"She had worked with Reynolds"
18"She turned the victim’s head"
19"The eyes were open, brown"
ratio0.831
42.37% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences118
matches
0"Now the platform stretched before"
ratio0.008
76.72% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences54
technicalSentenceCount5
matches
0"Now the platform stretched before her like a half-forgotten dream, littered with the wreckage of stalls that had no business existing in a decommissioned Underg…"
1"Glass vials glinted under the crime-scene halogens, some still leaking fluids that shimmered violet and refused to soak into the concrete."
2"This was something else entirely, something that set her teeth on edge the way the Morris case had done three years earlier."
3"Male, late thirties, dressed in a long coat of indeterminate color that smelled of ozone and wet wool."
4"Her partner had been found in an abandoned warehouse in Wapping with similar anomalies: blood in a perfect circle, no witnesses, symbols on the walls that foren…"
62.50% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags16
uselessAdditionCount2
matches
0"Eva said, voice pitched low, precise"
1"Quinn replied, voice low"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags11
fancyCount1
fancyTags
0"she murmured (murmur)"
dialogueSentences35
tagDensity0.314
leniency0.629
rawRatio0.091
effectiveRatio0.057
85.7504%