Run: 2026-03-18-01KM0A524Z3XJ6V9BR0SED2D8E

Run Details

Duration:
30.9s
Cost:
$0.024003
Provider:
OpenAI

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 turned Soho into a smear of lights and reflections. The green neon sign above The Raven’s Nest burned through the downpour, a hard emerald slash over the doorway, and every time the wind kicked the rain sideways the letters pulsed like something alive. Quinn stood across the street with her collar up and her hands buried deep in her coat pockets, watching the front door and trying not to look like she was watching it. Eighteen years in the job had taught her how to become part of a wall, part of a curb, part of the city itself. Tonight she was a dark shape under a dead shop awning, one more shadow among a dozen. Her left wrist felt heavier than the rest of her body. She glanced down at the worn leather watch there. 11:14 p.m. She’d been there nearly two hours, long enough for the rain to soak through the seam at her shoulder and for the cold to settle into her bones. The Nest looked ordinary if you didn’t know where to look. Blacked-out windows. Old maps and monochrome photographs behind the glass when the light hit right. A narrow door that let out a breath of heat and stale beer every time it opened. But Quinn knew about the back room. Knew there was a bookshelf in the rear that slid aside for people who belonged to whatever ugly little world met there after midnight. She knew because she’d spent the last three months tracing connections between missing persons, cash drops, and a string of bodies that all seemed to pass through the same circles before they vanished. And tonight, one of those circles had just opened. The man came out through the front door with his hood up and his head down, as if he expected the rain to hide him. He was maybe thirty, medium build, dark coat, hands jammed in the pockets of a canvas satchel slung across his chest. Quinn caught only the briefest view of his face before he turned—pale cheek, sharp nose, eyes too alert for a man who wanted to look anonymous. He looked right at the street. At the parked cars. At the shape of the awning where she stood. His gaze snagged there for half a second. Quinn didn’t move. The man kept walking. Then he went fast. Not a full run yet, but that quickening stride of someone who’d seen enough to know he was already late. Quinn was off the curb before he made the corner, rain hissing under her shoes. She came out of the dark and into the light and didn’t bother pretending anymore. “Harlow!” a voice barked from the doorway behind her. One of the Nest’s regulars, maybe. She ignored it. The man cut through the narrow lane beside a closed tailor’s shop, shoulders hunched, satchel bouncing against his ribs. Quinn followed, the alley tight enough that the walls seemed to lean inward on her. Water streamed from a fire escape onto her head and down the back of her neck. The man glanced over his shoulder and saw her clearly this time. His stride broke. He bolted. Quinn swore under her breath and lengthened hers. He was faster than he’d looked, all panic and nerve now, slipping around a stack of refuse bins and splashing into the street beyond. A taxi horn blared. Someone shouted. He nearly went under the wheels of a black cab and caught himself on the bonnet with one palm before throwing himself toward the opposite pavement. Quinn hit the street half a second later and barely missed the cab herself. The driver leaned on his horn and mouthed something obscene at her through the rain-streaked windscreen. Quinn didn’t look back. She saw the man turn left into traffic and vanish between a bus and a delivery van, then reappear on the far side with his coat plastered to his back. He knew where he was going. That was the ugly thought that settled in her stomach. Not a random flight. Not a thief running blind. He had a destination. Quinn put two fingers to the earpiece clipped under her collar, then remembered she wasn’t on a clean channel tonight. No backup. No uniform support. No one she could call without explaining things she wasn’t ready to explain. The unit would want warrants, names, a tidy chain of custody. They would not accept a story about a hidden market beneath Camden that sold things you weren’t supposed to find in any evidence locker in London. The man darted across the road and into the mouth of a tube station entrance that had been shuttered for years. Quinn slowed for one fraction of a beat, just enough to read the place. Abandoned stairs descending into darkness. Graffiti layered over old station signs. A rusted barrier half-collapsed on one side. No active lights. No commuters. No reason for anyone sane to go below. Unless they weren’t going below the station at all. Unless the station was just the door. A memory flicked through her mind with the speed of a blade: a body bag on a wet pavement three years ago, DS Morris’s face already gone pale under the streetlamp, the case file full of impossible details no one had wanted to name. She had spent months trying to make the world fit into something rational after that. Rational had not answered her. Rational had not brought Morris back. The man was gone from the mouth of the station. Quinn crossed the pavement and stopped at the top of the stairs. The rain followed her down in silver threads, breaking apart on the steps. The air changed immediately. Cleaner above, damp and mineral below, with a faint undercurrent of old electricity and mildew. She could hear something distant beneath the city noise: a low murmur of voices, a clink of metal, the rattle of a trolley wheel over uneven stone. She took the first step and saw the token. It lay on the landing below, just visible in the spill of streetlight from above. Bone-white. Small. Drilled clean through the top. The thing looked wrong on the wet concrete, too bright against all that gray. The suspect had dropped it or left it deliberately, she couldn’t tell which. Bone token. The words from her informant came back with irritating clarity. You don’t get into the Market without one. Full moon nights are the worst. Don’t go in blind, Quinn. She’d told the informant that she didn’t take advice from ghosts and liars. Now she wished she’d asked for a better map. A pair of footsteps sounded somewhere below, quick and urgent, then stopped. A voice muttered in irritation, too low for her to catch the words. Another voice answered, sharper, impatient. The sounds came from deeper down, beyond the station’s dead turnstiles. Quinn placed one foot on the step below the token and paused. This was the point where the job should have become simple. Show badge. Call for units. Bring enough bodies to flood the place and drag everyone out into the light. But the light didn’t seem to reach this far, and she had no idea what waited below. Criminals she could handle. Thieves. Drug dealers. Men with knives and bad intentions. She knew their rhythm. She knew how they breathed. This was something else. She looked back once over her shoulder. Camden shimmered above in the rain, buses crawling along the road, neon reflecting in the puddles. Ordinary London. The city that pretended it had no basement. If she turned around now, she could call this in as far as she understood it. A suspicious underground meeting. A possible trafficking point. She could walk away, build a case, return with a warrant and a team. And by then the man would be gone. So would whatever he was carrying. So would the trail. Quinn’s jaw tightened. She hated decisions made in the dark. Hated how they always came down to a single blunt choice with no clean outcome. Go in, and she might walk into an ambush or stumble onto something she couldn’t explain to a judge, let alone control. Stay out, and she’d be choosing ignorance on purpose. Another sound drifted up from below. Not a voice this time. A shout. Cut short. Followed by a metallic crash, as if someone had knocked over a rack of hanging tools. Her hand moved instinctively to the inside of her coat where her weapon sat cold against her ribs. She checked the weight, then the magazine, quick and practiced, the motion so familiar it was almost calming. Military precision had saved her more than once. It gave shape to fear. Fear could be managed if every action had a purpose. She stepped over the bone token and took the stairs down. The station swallowed the daylight behind her. The air turned cold and wet and thick with other smells: diesel from generators, cheap incense, wet wool, old coins, frying oil, something metallic underneath it all that she didn’t want to identify. The walls sweated. Pipes knocked somewhere in the dark. Her footsteps sounded wrong, too loud in a place built to be hidden. The old ticket hall opened below her in pieces, first the edge of a broken sign, then a slab of platform, then a wash of light that came not from bulbs but from strings of lanterns and stripped lamps hung from cables overhead. The space was far larger than she expected, the abandoned station transformed into a marketplace of shadowed stalls and narrow aisles. Canvas awnings had been rigged beneath the cracked ceiling. Tables overflowed with glass vials, wrapped bundles, brass instruments, and goods she couldn’t name from where she stood. People moved through it with the ease of the habituated. Hooded figures. Men in expensive coats. Women with red thread tied around their wrists. A pair of children, maybe teenagers, carrying a crate between them that glowed faintly through the slats. Quinn froze on the bottom step. The Market was alive. Not bustling. Alive like an animal that knew exactly how dangerous it was and had decided that didn’t matter. Every face she could see had that same hard, watchful stillness. Every conversation seemed to stop and restart when she moved. Eyes tracked her. Not all of them with alarm. Some with amusement. Some with interest. She felt suddenly, brutally visible. There was no way to confuse her for one of them. Her coat was too plain, her posture too straight, her face too obviously police even without the badge. She could almost hear the market measuring her. Deciding whether she was a problem now or later. A vendor at the nearest stall leaned forward, peering at her from under a fringe of damp black hair. “Wrong door,” he said mildly. Quinn ignored him and scanned the aisles. The man from the Nest had to be here. He’d had the token. He’d come running straight to this hole in the city. Somewhere in the crush and the dim, he had to be— There. Near the far end of the platform, half-hidden behind a stall draped with red cloth, the same dark coat. The same satchel. He was speaking to someone she couldn’t see, his hand lifted in agitated explanation. A flash of pale bone showed between his fingers as he gestured. He had the token back in his hand now, or a second one. His head snapped up. He saw her. For a second neither of them moved. The market noise swelled around them, then seemed to recede, leaving only the pulse of Quinn’s own blood and the distant drip of water from the ceiling. The man’s face went slack with fear. Not the fear of a thief caught by a detective. Something sharper. He looked past her shoulder, toward the stairwell, as if expecting someone else to come down behind her. Quinn’s skin prickled. She turned just enough to check the stairs. Empty. When she faced forward again, the man was already backing away into the crowd. Fast. Too fast. People shifted aside for him without protest, like they knew better than to stand in his path. He ducked behind a row of hanging tarps and vanished. Quinn took one step after him, then stopped. She was past the point of pretending this was still normal. Past the point of a neat report and a tidy arrest. If she chased him farther into the Market, she’d be giving herself over to a place built to hide things from people like her. If she stayed where she was, he’d disappear and take whatever he knew with him. Another shout rang out somewhere deeper in the station. A burst of laughter answered it. Somewhere metal clanged hard enough to make the hanging lamps tremble. Quinn inhaled slowly through her nose, tasting damp concrete and something coppery beneath it. The old ache in her left shoulder, where she’d once taken a shove on a stairwell, throbbed as if warning her. She thought of Morris again, of the case that had broken open into something she still didn’t have a name for. Thought of how being careful had not saved him. Thought of all the times she’d stood at the edge of a thing she didn’t understand and let it pass because she wanted evidence more than she wanted truth. Not tonight. She adjusted her grip on the pistol, squared her shoulders, and stepped into the market after him.
created_at"2026-03-18T11:09:05.068Z" 3/18/2026, 11:09:05 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency23991
moderation_latency(null)
generation_time29735
tokens_prompt914
tokens_completion4345
native_tokens_prompt810
native_tokens_completion5199
native_tokens_completion_images0
native_tokens_reasoning2455
native_tokens_cached0
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"
usage0.024003
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_03a3abb8bd468afa0169ba87d125e8819594b7a7fe4b8f3517"
is_byokfalse
latency200
model_permaslug"openai/gpt-5.4-mini-20260317"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773832145-YuCxfukKtX4PagC159zs"
upstream_id"resp_03a3abb8bd468afa0169ba87d125e8819594b7a7fe4b8f3517"
total_cost0.024003
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags2
adverbTagCount1
adverbTags
0"he said mildly [mildly]"
dialogueSentences2
tagDensity1
leniency1
rawRatio0.5
effectiveRatio0.5
93.35% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount2256
totalAiIsmAdverbs3
found
0
adverb"deliberately"
count1
1
adverb"suddenly"
count1
2
adverb"slowly"
count1
highlights
0"deliberately"
1"suddenly"
2"slowly"
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)
73.40% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount2256
totalAiIsms12
found
0
word"pulsed"
count1
1
word"tracing"
count1
2
word"stomach"
count1
3
word"flicked"
count1
4
word"footsteps"
count2
5
word"shimmered"
count1
6
word"weight"
count1
7
word"familiar"
count1
8
word"scanned"
count1
9
word"pulse"
count1
10
word"throbbed"
count1
highlights
0"pulsed"
1"tracing"
2"stomach"
3"flicked"
4"footsteps"
5"shimmered"
6"weight"
7"familiar"
8"scanned"
9"pulse"
10"throbbed"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"let out a breath"
count1
highlights
0"let out a breath"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells1
narrationSentences210
matches
0"k with fear"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount5
narrationSentences210
filterMatches
0"watch"
hedgeMatches
0"seemed to"
1"seem to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences210
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen44
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords2255
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions9
unquotedAttributions0
matches(empty)
83.33% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions38
wordCount2252
uniqueNames9
maxNameDensity0.93
worstName"Quinn"
maxWindowNameDensity2.5
worstWindowName"Quinn"
discoveredNames
Soho1
Raven1
Nest4
Quinn21
One1
Camden2
London2
Morris3
Market3
persons
0"Raven"
1"Nest"
2"Quinn"
3"One"
4"Camden"
5"Morris"
places
0"Soho"
1"London"
2"Market"
globalScore1
windowScore0.833
97.92% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences144
glossingSentenceCount3
matches
0"her face too obviously police even without"
1"as if expecting someone else to come down behind her"
2"as if warning her"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords0.887
wordCount2255
matches
0"Not a full run yet, but"
1"not from bulbs but from strings of lanterns"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences210
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs75
mean30.07
std26.27
cv0.874
sampleLengths
044
173
250
3107
49
572
619
78
83
94
104
1150
1218
1362
143
152
1664
1764
186
1910
2013
2175
2221
2314
2431
259
267
2770
2810
2971
309
3149
322
3329
3413
359
3641
3712
3830
3939
404
4133
4238
4314
444
4556
4631
4759
4811
4962
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences210
matches
0"been shuttered"
1"was gone"
2"been rigged"
72.15% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount7
totalVerbs365
matches
0"was watching"
1"was going"
2"weren’t going"
3"was carrying"
4"was almost calming"
5"was speaking"
6"was already backing"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount2
semicolonCount0
flaggedSentences2
totalSentences210
ratio0.01
matches
0"Quinn caught only the briefest view of his face before he turned—pale cheek, sharp nose, eyes too alert for a man who wanted to look anonymous."
1"Somewhere in the crush and the dim, he had to be—"
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount2258
adjectiveStacks1
stackExamples
0"same hard, watchful stillness."
adverbCount86
adverbRatio0.03808680248007086
lyAdverbCount18
lyAdverbRatio0.007971656333038087
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences210
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences210
mean10.74
std8.07
cv0.752
sampleLengths
010
134
232
324
417
511
69
72
828
911
102
1113
1217
137
1424
1533
169
1725
1821
1926
206
214
229
238
243
254
264
2720
2815
2915
309
316
323
3319
3415
3516
3612
373
382
398
4024
414
422
4326
4414
4516
464
4730
486
4910
53.65% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats24
diversityRatio0.3904761904761905
totalSentences210
uniqueOpeners82
53.48% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences187
matches
0"Then he went fast."
1"Somewhere in the crush and"
2"Somewhere metal clanged hard enough"
ratio0.016
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount48
totalSentences187
matches
0"Her left wrist felt heavier"
1"She glanced down at the"
2"She’d been there nearly two"
3"She knew because she’d spent"
4"He was maybe thirty, medium"
5"He looked right at the"
6"His gaze snagged there for"
7"She came out of the"
8"She ignored it."
9"His stride broke."
10"He was faster than he’d"
11"He nearly went under the"
12"She saw the man turn"
13"He knew where he was"
14"He had a destination."
15"They would not accept a"
16"She had spent months trying"
17"She could hear something distant"
18"She took the first step"
19"It lay on the landing"
ratio0.257
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount133
totalSentences187
matches
0"The green neon sign above"
1"Quinn stood across the street"
2"Tonight she was a dark"
3"Her left wrist felt heavier"
4"She glanced down at the"
5"She’d been there nearly two"
6"The Nest looked ordinary if"
7"A narrow door that let"
8"She knew because she’d spent"
9"The man came out through"
10"He was maybe thirty, medium"
11"Quinn caught only the briefest"
12"He looked right at the"
13"His gaze snagged there for"
14"Quinn didn’t move."
15"The man kept walking."
16"Quinn was off the curb"
17"She came out of the"
18"a voice barked from the"
19"She ignored it."
ratio0.711
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount4
totalSentences187
matches
0"Now she wished she’d asked"
1"If she turned around now,"
2"If she chased him farther"
3"If she stayed where she"
ratio0.021
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences98
technicalSentenceCount4
matches
0"Quinn caught only the briefest view of his face before he turned—pale cheek, sharp nose, eyes too alert for a man who wanted to look anonymous."
1"Not a full run yet, but that quickening stride of someone who’d seen enough to know he was already late."
2"The old ticket hall opened below her in pieces, first the edge of a broken sign, then a slab of platform, then a wash of light that came not from bulbs but from…"
3"He looked past her shoulder, toward the stairwell, as if expecting someone else to come down behind her."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags2
uselessAdditionCount0
matches(empty)
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount1
fancyTags
0"a voice barked (bark)"
dialogueSentences2
tagDensity1
leniency1
rawRatio0.5
effectiveRatio0.5
87.3759%