Run: 2026-03-12-01KKHZKXP88MJCAGF1YMKPBANY

Run Details

Duration:
23.1s
Cost:
$0.028083
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="4417" name="Tomás Herrera" aliases="Tommy, Tomás, Herrera" pronouns="he/him" species="Human" storyRole="Support"> <eyeColor>warm brown</eyeColor> <hair>short curly dark brown</hair> <height>5'10"</height> <age>29</age> <skinTone>olive skin</skinTone> <scar>scar running along his left forearm from a knife attack</scar> <medallion>Saint Christopher medallion around his neck</medallion> <birthplace>Seville, Spain</birthplace> <description>A former paramedic who provides off-the-books medical care for the clique.</description> <backstory>Born in Seville, Spain. He moved to London to work for the NHS but lost his license after administering unauthorized treatments to supernatural patients.</backstory> </character> <location id="854" name="The Raven's Nest" aliases="the Nest, Raven, Silas' bar" realm="Earth"> <signColor>distinctive green neon sign above the entrance</signColor> <secretRoom>hidden back room accessible through a bookshelf, used for clandestine meetings</secretRoom> <description>A dimly lit bar in Soho, London. The walls are covered with old maps and black-and-white photographs.</description> </location> <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> </codex> Write a fully fleshed out scene of at least 1000 words in the thriller genre. A detective is pursuing a suspect through rain-soaked city streets at night. The chase takes them from the street level down into an underground market. The detective must decide whether to follow the suspect into unfamiliar and potentially dangerous territory. 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
Rain hammered the streets of central London, each drop a cold needle against Detective Harlow Quinn’s skin. She ran with the clipped efficiency her nineteen years on the force had drilled into her bones, shoulders square, elbows tight, boots slapping through puddles that reflected the sickly glow of sodium lamps and the occasional red smear of a passing bus. Her closely cropped salt-and-pepper hair was plastered to her skull, water streaming down the sharp line of her jaw and into the collar of her sodden coat. The worn leather watch on her left wrist read 11:49. She didn’t need to check it again; time had become a secondary concern the moment Tomás Herrera had bolted from the side door of the Raven’s Nest. The bar’s distinctive green neon sign had flickered behind her like a warning as she gave chase. She had been watching the place for three nights running, nursing black coffee in a doorway across the street, convinced the clique used its hidden back room for more than quiet drinks. Then Herrera had stepped out, olive face half-hidden by a raised hood, Saint Christopher medallion catching the light for a single betraying second. She had called his name once. He had looked straight at her with those warm brown eyes—eyes that had clearly recognized the detective who’d been circling his associates for weeks—and he had run. “Metropolitan Police!” she shouted again, voice raw. “Tomás, stop!” He didn’t. The scar along his left forearm flashed as he swung around a corner onto Charing Cross Road, coat flapping. Quinn lengthened her stride, military precision keeping her balanced even as the rain turned the pavement into black glass. Her breath came steady but hard; she was forty-one, not twenty-five, yet the old training still held. What held less steadily was the cold knot in her stomach that had formed the moment she realized where he was leading her. North. Toward Camden. The streets blurred past in wet streaks of neon and shadow: shuttered cafes, late-night kebab shops spilling yellow light, the occasional drunk weaving out of her path. She kept her eyes locked on the back of Herrera’s head, on the dark curls now flattened by rain. Every time he glanced back she saw the same expression—fear, yes, but something else. Resignation. As though he knew exactly how this chase had to end. Her mind flickered, unbidden, to DS Morris. Three years ago almost to the day. Same kind of night, same sense of wrongness threading through the ordinary. Morris had gone into an alley after a suspect and simply never come out. The official report called it a disappearance. Quinn knew better. She had seen the photographs the forensics team never explained: charred circles on the brickwork, a smell like ozone and burnt cinnamon. She had never spoken of it aloud. Speaking it aloud would mean admitting she was chasing something that refused to stay inside the lines of ordinary crime. Herrera cut east onto a side street, then north again, boots splashing through flooded gutters. Quinn’s lungs burned, but she closed the gap by half a dozen meters. The buildings grew shabbier, the bright heart of Soho giving way to the scruffier edges of Camden. The rain seemed to fall harder here, as if the city itself wanted to blind her. She vaulted a low barrier, landed cleanly, and kept running. Ahead, Herrera dodged between two market stalls that had been closed for the night, their tarps flapping like wounded birds. He was heading for the old Tube entrance—the one the public had been barred from for years. Graffiti covered the shuttered gates, but Quinn saw immediately that one panel had been pried loose. Herrera wrenched it open just enough to slip through, the metal screeching in protest. She reached the gap ten seconds later, heart hammering against her ribs. She paused, one hand on the cold iron. Water poured off the brim of the entrance awning and sheeted across her shoulders. Inside: darkness thick enough to swallow sound. She could still hear his footsteps echoing down the stairwell, growing fainter. If she went in alone, without backup, without even a radio signal that would reach the surface, she would be breaking every protocol she had spent two decades enforcing. She thought of Morris again. Thought of the way his unsolved file still sat in her desk drawer like an accusation. Thought of the clique and the things they whispered about when they thought no one was listening—markets that weren’t on any map, goods that shouldn’t exist, people who healed wounds that should have killed them. “Damn you, Tommy,” she muttered, and shoved the gate wider. The stairwell smelled of wet concrete and something sharper, like crushed herbs and hot metal. Emergency lights flickered at long intervals, painting the walls in sickly amber. Quinn drew her baton but left her firearm holstered; she wasn’t here to shoot a medic, even a bent one. She moved down the steps quickly, ears straining. The footsteps had stopped. That was worse. At the bottom the tunnel opened into a wider space, the old platform long since stripped of its tracks. But it was no longer abandoned. Lanterns hung from makeshift rigging, casting a sickly green-gold light across dozens of stalls that had not been there on any official survey. The air hummed with low voices and the rustle of strange merchandise. A woman with silver wires threaded through her braids sold vials that swirled with living light. A man missing three fingers haggled over a set of brass scales that weighed shadows instead of objects. Quinn’s skin crawled. This was the Veil Market. She had heard the name twice in three years—both times from informants who later recanted or disappeared. She scanned the crowd for Herrera’s curly head and the flash of his medallion. There—twenty meters ahead, pushing through a knot of figures cloaked in oilskin. He glanced back once more, eyes wide with something like apology, then slipped behind a stall draped in black velvet. Quinn surged forward. A vendor thrust a bone token at her—an actual human knucklebone stamped with a sigil—and barked, “Entry’s not free, love.” She ignored him, shouldering past. The token clattered to the ground behind her. She didn’t care. Rules here weren’t her rules. The market pressed in on every side. Strange smells fought for dominance: myrrh, gun oil, something sweet and rotting. A cage of glass jars contained what looked like living tattoos that crawled across the glass seeking new skin. Quinn kept moving, breath shallow, eyes never still. Her sharp jaw was clenched so tightly it ached. Every instinct screamed that she had crossed a threshold she could not uncross. The rational part of her—the part that had earned eighteen commendations—insisted she turn around, call for armed backup, and seal the whole place. The rest of her remembered Morris’s empty desk. She spotted Herrera again near a stall selling banned alchemical salts. He was breathing hard, hand pressed to his side where a fresh stitch must have pulled. The scar on his forearm stood out stark against wet olive skin. For the first time he didn’t run. Instead he met her gaze across fifteen feet of flickering lantern light. “Detective Quinn,” he said, voice carrying just far enough. The Spanish accent was faint but present, softened by years in London. “You shouldn’t be here.” “Neither should you, Herrera. You’re coming with me.” He gave a tired smile that didn’t reach his warm brown eyes. “Some doors only open one way tonight.” A vendor nearby extinguished his lantern with a snap of his fingers. The sudden drop in light swallowed Herrera’s shape. Quinn lunged, baton raised, but her foot caught on a loose flagstone. She stumbled, catching herself against a table laden with maps that showed streets that had never existed. When she looked up, the crowd had shifted like water closing over a dropped stone. Herrera was gone. She spun in a slow circle, pulse roaring in her ears. The market seemed larger now, stretching deeper into abandoned tunnels she hadn’t noticed before. Faces turned toward her—some curious, some hostile, some not quite human in the uncertain light. Rainwater still dripped from her hair onto the dusty platform floor, each droplet sounding unnaturally loud. Quinn straightened, military bearing locking her spine. She wiped her mouth with the back of a wet sleeve and felt the weight of her watch like an anchor. Forty-one years old. Widowed in every way that mattered when Morris vanished. She had spent three years telling herself the world still made sense if she just kept digging. The digging had brought her here, to a place that smelled of magic and menace and the unmistakable copper tang of fresh blood from some unseen transaction. She could climb the stairs, call for a response team, and spend the next six months trying to convince her superiors that an underground black market existed beneath Camden. Or she could keep walking forward, deeper into the unknown, chasing the last living thread that might explain what had happened to her partner. Her brown eyes narrowed. The sharp line of her jaw flexed once. Quinn rolled her shoulders, checked the baton in her grip, and stepped past the last circle of lantern light into the darker reaches of the Veil Market. The crowd parted for her the way water parts for a blade. Somewhere ahead, a Saint Christopher medallion glinted once in the gloom, then vanished around a corner only the lost were meant to take. She followed.
created_at"2026-03-12T21:35:35.63Z" 3/12/2026, 9:35:35 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency12479
moderation_latency(null)
generation_time22975
tokens_prompt914
tokens_completion2458
native_tokens_prompt907
native_tokens_completion4647
native_tokens_completion_images0
native_tokens_reasoning2717
native_tokens_cached896
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0280832
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"9d461d46-78aa-97f9-01b4-706a5a86474c"
is_byokfalse
latency257
model_permaslug"x-ai/grok-4.20-beta-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773351335-hihIxhW7zEvnPIC1KFh1"
upstream_id"9d461d46-78aa-97f9-01b4-706a5a86474c"
total_cost0.0280832
cache_discount0.0016128
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags4
adverbTagCount1
adverbTags
0"she shouted again [again]"
dialogueSentences8
tagDensity0.5
leniency1
rawRatio0.25
effectiveRatio0.25
93.77% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1605
totalAiIsmAdverbs2
found
0
adverb"quickly"
count1
1
adverb"tightly"
count1
highlights
0"quickly"
1"tightly"
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)
50.16% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1605
totalAiIsms16
found
0
word"streaming"
count1
1
word"flickered"
count3
2
word"stomach"
count1
3
word"sense of"
count1
4
word"footsteps"
count2
5
word"echoing"
count1
6
word"scanned"
count1
7
word"velvet"
count1
8
word"stark"
count1
9
word"pulse"
count1
10
word"roaring"
count1
11
word"weight"
count1
12
word"gloom"
count1
highlights
0"streaming"
1"flickered"
2"stomach"
3"sense of"
4"footsteps"
5"echoing"
6"scanned"
7"velvet"
8"stark"
9"pulse"
10"roaring"
11"weight"
12"gloom"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"eyes widened/narrowed"
count1
highlights
0"eyes narrowed"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences114
matches(empty)
92.73% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount2
narrationSentences114
filterMatches
0"watch"
hedgeMatches
0"seemed to"
1"happened to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences118
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen42
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1593
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions5
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions51
wordCount1561
uniqueNames20
maxNameDensity0.77
worstName"Quinn"
maxWindowNameDensity1.5
worstWindowName"Quinn"
discoveredNames
London2
Detective1
Harlow1
Quinn12
Tomás1
Herrera10
Raven1
Nest1
Saint2
Christopher2
Charing1
Cross1
Road1
Camden3
Morris5
Soho1
Tube1
Veil2
Market2
Spanish1
persons
0"Harlow"
1"Quinn"
2"Tomás"
3"Herrera"
4"Raven"
5"Saint"
6"Christopher"
7"Morris"
8"Market"
places
0"London"
1"Charing"
2"Cross"
3"Road"
4"Camden"
5"Soho"
globalScore1
windowScore1
45.83% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences96
glossingSentenceCount4
matches
0"something like apology, then slipped behind"
1"looked like living tattoos that crawled a"
2"seemed larger now, stretching deeper into abandoned tunnels she hadn’t noticed before"
3"not quite human in the uncertain light"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1593
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences118
matches
0"screamed that she"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs31
mean51.39
std34.59
cv0.673
sampleLengths
0123
1105
29
380
43
572
699
791
859
970
1056
1110
1262
13119
1446
1544
1691
178
1858
1925
208
2119
2267
2356
2457
2527
2653
2712
2839
2923
302
83.72% Passive voice overuse
Target: ≤2% passive sentences
passiveCount7
totalSentences114
matches
0"was plastered"
1"been closed"
2"been barred"
3"been pried"
4"was clenched"
5"was gone"
6"were meant"
75.62% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount5
totalVerbs268
matches
0"was leading"
1"was chasing"
2"was heading"
3"was listening"
4"was breathing"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount12
semicolonCount3
flaggedSentences12
totalSentences118
ratio0.102
matches
0"She didn’t need to check it again; time had become a secondary concern the moment Tomás Herrera had bolted from the side door of the Raven’s Nest."
1"He had looked straight at her with those warm brown eyes—eyes that had clearly recognized the detective who’d been circling his associates for weeks—and he had run."
2"Her breath came steady but hard; she was forty-one, not twenty-five, yet the old training still held."
3"Every time he glanced back she saw the same expression—fear, yes, but something else."
4"He was heading for the old Tube entrance—the one the public had been barred from for years."
5"Thought of the clique and the things they whispered about when they thought no one was listening—markets that weren’t on any map, goods that shouldn’t exist, people who healed wounds that should have killed them."
6"Quinn drew her baton but left her firearm holstered; she wasn’t here to shoot a medic, even a bent one."
7"She had heard the name twice in three years—both times from informants who later recanted or disappeared."
8"There—twenty meters ahead, pushing through a knot of figures cloaked in oilskin."
9"A vendor thrust a bone token at her—an actual human knucklebone stamped with a sigil—and barked, “Entry’s not free, love.” She ignored him, shouldering past."
10"The rational part of her—the part that had earned eighteen commendations—insisted she turn around, call for armed backup, and seal the whole place."
11"Faces turned toward her—some curious, some hostile, some not quite human in the uncertain light."
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1581
adjectiveStacks1
stackExamples
0"stark against wet olive"
adverbCount60
adverbRatio0.03795066413662239
lyAdverbCount15
lyAdverbRatio0.009487666034155597
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences118
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences118
mean13.5
std7.99
cv0.592
sampleLengths
017
142
227
310
427
517
632
723
86
927
107
112
122
1319
1419
1517
1623
171
182
1927
2019
2114
221
2311
247
257
2612
2714
287
293
3022
317
3220
3315
3413
3517
3616
3710
3820
3917
4016
4114
4212
438
4414
457
4612
4729
485
4916
64.69% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats7
diversityRatio0.423728813559322
totalSentences118
uniqueOpeners50
91.74% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences109
matches
0"Then Herrera had stepped out,"
1"Instead he met her gaze"
2"Somewhere ahead, a Saint Christopher"
ratio0.028
91.56% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount35
totalSentences109
matches
0"She ran with the clipped"
1"Her closely cropped salt-and-pepper hair"
2"She didn’t need to check"
3"She had been watching the"
4"She had called his name"
5"He had looked straight at"
6"she shouted again, voice raw"
7"Her breath came steady but"
8"She kept her eyes locked"
9"Her mind flickered, unbidden, to"
10"She had seen the photographs"
11"She had never spoken of"
12"She vaulted a low barrier,"
13"He was heading for the"
14"She reached the gap ten"
15"She paused, one hand on"
16"She could still hear his"
17"She thought of Morris again."
18"she muttered, and shoved the"
19"She moved down the steps"
ratio0.321
60.92% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount87
totalSentences109
matches
0"She ran with the clipped"
1"Her closely cropped salt-and-pepper hair"
2"The worn leather watch on"
3"She didn’t need to check"
4"The bar’s distinctive green neon"
5"She had been watching the"
6"She had called his name"
7"He had looked straight at"
8"she shouted again, voice raw"
9"The scar along his left"
10"Quinn lengthened her stride, military"
11"Her breath came steady but"
12"The streets blurred past in"
13"She kept her eyes locked"
14"Every time he glanced back"
15"Her mind flickered, unbidden, to"
16"Morris had gone into an"
17"The official report called it"
18"Quinn knew better."
19"She had seen the photographs"
ratio0.798
91.74% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences109
matches
0"As though he knew exactly"
1"If she went in alone,"
ratio0.018
36.68% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences74
technicalSentenceCount11
matches
0"She ran with the clipped efficiency her nineteen years on the force had drilled into her bones, shoulders square, elbows tight, boots slapping through puddles t…"
1"He had looked straight at her with those warm brown eyes—eyes that had clearly recognized the detective who’d been circling his associates for weeks—and he had …"
2"Speaking it aloud would mean admitting she was chasing something that refused to stay inside the lines of ordinary crime."
3"She could still hear his footsteps echoing down the stairwell, growing fainter."
4"If she went in alone, without backup, without even a radio signal that would reach the surface, she would be breaking every protocol she had spent two decades e…"
5"Thought of the clique and the things they whispered about when they thought no one was listening—markets that weren’t on any map, goods that shouldn’t exist, pe…"
6"Lanterns hung from makeshift rigging, casting a sickly green-gold light across dozens of stalls that had not been there on any official survey."
7"A cage of glass jars contained what looked like living tattoos that crawled across the glass seeking new skin."
8"The rational part of her—the part that had earned eighteen commendations—insisted she turn around, call for armed backup, and seal the whole place."
9"The digging had brought her here, to a place that smelled of magic and menace and the unmistakable copper tang of fresh blood from some unseen transaction."
10"Or she could keep walking forward, deeper into the unknown, chasing the last living thread that might explain what had happened to her partner."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags4
uselessAdditionCount2
matches
0"she shouted again, voice raw"
1"he said, voice carrying just far enough"
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags4
fancyCount3
fancyTags
0"she shouted again (shout)"
1"she muttered (mutter)"
2"A vendor thrust (a vendor thrust)"
dialogueSentences8
tagDensity0.5
leniency1
rawRatio0.75
effectiveRatio0.75
75.7721%