Run: 2026-02-17-01KHMQFSQ1QG9E8PTCJ0C5Y8YV

Run Details

Duration:
1m 25s
Cost:
$0.055500
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 made the city feel rinsed raw, as if London had been scrubbed down to brick and nerve. Detective Harlow Quinn stood half in shadow across the street from The Raven’s Nest and watched water ribbon off the awning and run in sheets down the glass. The bar’s distinctive green neon sign burned through the weather like a chemical flare, painting the puddles and passing faces sickly emerald. Quinn didn’t flinch. She held her posture the way she’d learned long before she ever wore a detective’s badge—spine straight, shoulders quiet, weight balanced on the balls of her feet. Military precision, they’d called it, like it was a compliment and not a warning. Her closely cropped salt-and-pepper hair was damp at the edges where the rain had found its way under her collar. She checked her worn leather watch—left wrist, as always—more from habit than need. Time didn’t matter as much as movement. The Raven’s Nest had been a whisper on her board for weeks: a dim Soho bar with old maps and black-and-white photographs wallpapering the walls, a place where men who didn’t want to be seen liked to be seen by the right people. There were rumors of a back room too, a hidden one behind a bookshelf, the sort of theatrical secrecy criminals loved. Quinn had never trusted theatricality. It was either an attempt to impress or to distract. Usually both. The door opened and a wedge of warm light spilled onto the wet pavement. Laughter followed—muffled, then snuffed by rain. A man stepped out alone, hunched against the weather, and for a second she only saw his silhouette: average height, lean build, shoulders set like someone used to carrying weight that wasn’t his own. Then he turned under the awning and the light caught his face. Tomás Herrera. Warm brown eyes, olive skin, short curly dark hair plastered darker by rain. He had a Saint Christopher medallion at his throat that flashed silver as he adjusted the collar of his jacket. It looked out of place on him, too earnest, too old-world. Quinn had seen it in photographs, in the file she’d built on the clique that used the Nest like a clubhouse. Former paramedic. Seville. Lost his license. Now he was always on the edge of things—never the headline, always in the background with clean hands and dirty favors. Quinn watched him glance up and down the street. Not casual. Not the quick look of someone checking for traffic. It was the sweep of someone trained to find threats, or at least to fear them. He stepped off the curb. Quinn moved at the same time. She crossed behind a passing cab, the rain hammering the roof loud enough to cover her footfalls. She closed the distance fast, careful not to look like she was closing the distance. Herrera walked with purpose, cutting diagonally through the flow of pedestrians, slipping between umbrellas as if he’d mapped their trajectories. He wasn’t drunk. He wasn’t lost. He was heading somewhere he didn’t want anyone else to follow. Quinn felt the familiar tightening behind her ribs. Three years ago she’d felt it on a different street, in a different storm, watching DS Morris disappear through a door that shouldn’t have been there. She’d arrived half a minute too late and spent the rest of her nights replaying that half minute like a broken loop. Herrera turned abruptly into a narrow lane, and Quinn followed, boots splashing through shallow water. The buildings pressed close here, old brick sweating rain. The air smelled like wet dust and fried food and the sour metal tang of the city’s veins. Herrera looked back. Their eyes caught. Just for a heartbeat. Something moved across his face—not surprise, exactly. Recognition, and a decision. He ran. Quinn surged after him, her breath already controlled, her mind stripping away anything that wasn’t the chase. The lane spilled out onto a wider street, traffic gliding like dark fish. Herrera vaulted a low barrier, shoes skidding on slick metal, and cut between two idling cars. Horns blared. A driver shouted. Quinn didn’t slow. She planted a hand on the barrier and swung over it with efficiency that felt older than her body, the muscle memory of drills and pursuit training rising to meet her. “Herrera!” she called, voice sharp enough to cut through the rain. “Met Police. Stop!” He didn’t even glance back. He was fast, but not reckless; he took corners tight, avoided puddles deep enough to steal footing, kept his center of gravity low. The scar along his left forearm flashed pale as his sleeve rode up when he pumped his arms. He’d been hurt before, and he didn’t want to be again. Soho gave way in pieces—neon and nightlife thinning, streets stretching longer and darker. Quinn’s lungs burned pleasantly. She lived for this clarity, this clean line between hunter and hunted. It was the paperwork afterward that made her old. Herrera ducked under scaffolding, water pouring off planks in silver curtains. Quinn followed, and the world narrowed to the slap of shoes, the roar of rain, and the wet gleam of streetlights smeared across her vision. He cut into a side street that rose toward Camden, the gradient subtle but insistent. Quinn’s watch ticked against her pulse. She could have called for backup. She could have let uniformed officers flood the area, close roads, turn it into a net. But nets caught everything. She wanted Herrera. She wanted the truth that he carried like a second skin. Ahead, Herrera veered toward an alley mouth that looked like nothing—just a gap between buildings, a service corridor with a dumpster and a chain-link fence at the far end. No lights. No signs. The sort of place a mugger would love. Quinn’s instincts flared. Herrera reached the fence and didn’t stop. He slipped through a narrow opening she hadn’t noticed, a section pulled loose from its frame. He vanished into darkness beyond. Quinn was a few seconds behind. She shoved through, chain-link scraping her shoulder. Cold metal snagged her coat; she yanked free and kept going. The alley narrowed, then dropped. Stairs descended steeply, slick with rain and algae, disappearing into an underpass that shouldn’t have been there—not here, not like this. A faint draft rose up from below, damp and stale, carrying the smell of old stone and electricity and something else, a note like burnt sugar that made her tongue feel strange. Herrera’s footsteps echoed ahead, faster now, as if he’d been holding back until he reached this point. Quinn took the stairs two at a time, palm skimming the wall for balance. Her mind ticked through the city map she carried in her head. Camden. There were abandoned Tube access points, sealed service tunnels, forgotten entrances. She’d been in plenty of them on cases—drugs, runaway kids, bodies dumped where no one looked. But this… this felt wrong in a way she couldn’t file neatly. At the bottom, the passage opened onto a wide corridor lined with stained tile. Old London Transport signage hung crooked, the letters faded. An abandoned Tube station, by the look of it—platform edge just visible ahead, the tracks swallowed by darkness. Water dripped from the ceiling in steady rhythm, like a clock. Herrera slowed near a metal door set into the wall by the platform. It was painted the same dull gray as the tiles and would have been invisible if he hadn’t gone straight to it. He reached into his pocket. Quinn stopped behind a pillar, half concealed, breath quiet. She watched his hands. He pulled out something small and pale, cupped in his fingers. For a second she thought it was a coin. Then it caught the light—no, not coin. Bone. A token carved from bone, polished smooth, etched with tiny markings that made her eyes strain to follow. Herrera pressed it against the door. There was no keyhole. No scanner. No visible mechanism. The bone token touched metal and the door responded like flesh, shivering under his hand. The gray surface rippled, and for a moment Quinn’s stomach dipped as if she’d stepped off a ledge. A low hum filled the corridor, not loud enough to hear with her ears so much as feel in her teeth. The air thickened, tasting of ozone and wet earth. The door opened inward without a sound. Light spilled out—warm, flickering, the color of candleflame and old gold. It painted Herrera’s face in shifting shadows and turned the Saint Christopher medallion into a bright, accusing eye. He slipped through. The door began to close. Quinn moved. She shot from behind the pillar and jammed her boot into the gap, catching the edge just before it sealed. The metal—if it was metal—pushed back like muscle. It tried to close on her foot with patient, relentless force. Quinn swore under her breath and shoved, shoulder to the door, muscles bunching. The door yielded grudgingly, opening enough for her to slide through. The air changed the moment she crossed the threshold. It wasn’t just warmer. It was alive. It hummed with voices and motion, a dense weave of sound that made the abandoned station behind her feel like a dead shell. The smell hit her next—incense, spices, sweat, machine oil, old paper, and something sharp and clean like crushed pine needles. She stood in what had once been another platform, deeper underground, the architecture unmistakably Tube—curved ceiling, tiled walls—but transformed. Stalls crowded the space, makeshift counters and hanging curtains, strings of lights that glowed without visible bulbs. People moved shoulder to shoulder, some in raincoats, some in clothes that looked like costume or ritual, some in suits too expensive to belong down here. There were faces she could place—human, tired, greedy. And there were faces she couldn’t make sense of, features subtly wrong in a way that made her eyes want to slide away. Quinn’s hand went instinctively to the inside of her coat where her badge and gun sat heavy and reassuring. She didn’t pull either. Not yet. A badge meant authority, but authority only worked where people believed in it. A gun meant violence, and violence down here looked like it would come back on her like a tide. Herrera was already melting into the crowd, moving with the ease of someone who’d been here before. He didn’t look back. He trusted this place to swallow him. Quinn took a step forward and felt the floor vibrate faintly beneath her boots, as if trains still ran somewhere below, ghost rails carrying ghost cargo. She scanned faces, exits, threats. A tall man with a shaved head watched her too closely from beside a stall draped in dark cloth. A woman with glittering eyes—literal glitter, like powdered glass—laughed too loud at something whispered into her ear. A boy no older than sixteen carried a tray of small jars that pulsed with soft blue light; he flinched when Quinn’s gaze touched him and hurried away. There was a rhythm to the crowd, an unspoken etiquette. People didn’t shove. They flowed. They gave space in tight places as if guided by rules Quinn didn’t know. She forced herself to walk, not chase. She kept her shoulders relaxed, her head level. Predators could smell fear, but so could opportunists. As she moved deeper, she saw what was being sold. Not just drugs and stolen phones. Glass vials filled with swirling smoke that moved against gravity. Bundles of dried herbs tied with red thread, the air around them shimmering faintly. Knives with blades that seemed to drink the light. A stack of old books whose pages turned on their own, whispering as they flipped. Information, too. A man behind a cage of wire and brass leaned in close to a customer and spoke into his ear, and the customer’s face went gray with shock. The man smiled like he’d been paid in more than money. This wasn’t a drug den. This was a market. Quinn’s pulse stayed steady because she made it stay steady. Inside, a cold awareness uncoiled in her gut. DS Morris. The unexplained circumstances. The way the official reports had never matched what she’d seen on that night. The way witnesses had looked through her when she asked the wrong questions, as if something nudged their attention away. She’d told herself there was a rational explanation. There always was. There had to be. And yet here she was, standing under Camden in a place that didn’t belong on any map, watching a boy sell light in jars. Herrera slipped around a stall hung with strings of bone—tokens like the one he’d used, clicking softly when they touched. Quinn followed at a distance, threading through the crowd. She caught flashes of him: dark hair, quick shoulders, the silver glint of his medallion. He stopped at a counter where an old woman sat on a crate, her hands wrapped around a cup steaming with something dark. Her eyes lifted to Herrera, then flicked to Quinn with a sharpness that made Quinn’s skin prickle. The woman said something in a language Quinn didn’t recognize. Herrera answered softly, urgent. The old woman’s gaze stayed on Quinn. Her lips pulled back, not quite a smile. Herrera turned then, just enough to see Quinn fully. For a fraction of a second, his face opened—fear, frustration, and something like resignation. He shook his head once, small but clear, as if warning her off. Quinn didn’t stop. Herrera broke away again, moving faster, and the crowd seemed to part for him, not like courtesy but like obedience. Quinn pushed through, but the flow resisted her now. A shoulder bumped her hard enough to sting. Someone’s elbow caught her ribs. A murmured word brushed her ear—too close, too intimate—though she couldn’t make out what it said. She could turn back. She could retreat through the door before it decided she didn’t belong and sealed behind her forever. She could go back to the wet streets and radio for uniforms, pretend this place was just a strange cellar full of eccentric criminals, file it as a lead and not a revelation. She pictured DS Morris’s last look—quick, distracted, confident. He’d trusted her to cover him. He’d walked into the unknown and not come back. Quinn’s jaw tightened until it ached. Her sharp jawline had been called hard; she’d always taken it as proof she was built to endure. She checked her watch again, the worn leather slick under her thumb. The second hand moved as if nothing had changed. Quinn moved forward. A man stepped into her path, close enough that she could smell his breath—mint and rot. He wore a long coat that didn’t get wet, though droplets fell all around him. “You’re not carrying a token,” he said, voice mild. Quinn met his gaze, brown eyes steady. “I’m looking for someone.” The man’s smile showed too many teeth. “Everyone down here is looking.” Quinn shifted her stance a fraction, grounding herself, ready if she needed to strike. “Move.” He didn’t. His eyes flicked to her coat, lingering where her weapon sat hidden. “This isn’t your city,” he said softly, as if offering advice. Quinn leaned in just enough that he had to focus on her, on the human threat she represented. “It’s my case.” For a moment, the man hesitated. Something moved behind his eyes—calculation, maybe amusement. Then he stepped aside with exaggerated politeness. Quinn slipped past him, heart steady, and kept Herrera in sight. Ahead, the market corridor narrowed into a darker passage, the light thinning, the crowd thickening. Herrera disappeared into it without slowing, swallowed by shadow and sound. Quinn reached the mouth of the passage and paused. Beyond it, the market noise changed pitch, becoming lower, more intimate, like voices shared in a room where secrets had weight. The air coming from that tunnel felt colder, threaded with that same burnt-sugar scent that had clung to the door above. It raised the fine hairs on her arms. This was the line. She could feel it—street level behind her, rules and radios and reinforcements. Whatever lay ahead, deeper underground, where a bone token opened doors and the market sold things that didn’t exist in her reports, was something else entirely. Quinn inhaled once, tasting incense and metal, and let the breath out slow. Then she stepped into the dark after Tomás Herrera, and the shadows closed around her like water.
created_at"2026-02-17T02:41:17.100269+00:00" 2/17/2026, 2:41:17 AM
model"openai/gpt-5.2-20251211"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8328
moderation_latency(null)
generation_time84860
tokens_prompt914
tokens_completion4254
native_tokens_prompt810
native_tokens_completion3863
native_tokens_completion_images0
native_tokens_reasoning379
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"
usage0.0554995
router(null)
provider_responses
0
id"resp_069f4f0a9ea36c96016993d4f7a1008195acdce5a039f47d8c"
status200
is_byokfalse
latency195
endpoint_id"f00142c2-6a93-49ce-9e36-5593b904ce3b"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.2-20251211"
api_type"completions"
id"gen-1771295991-HlbUvPJXmTbbbCBvDvkj"
upstream_id"resp_069f4f0a9ea36c96016993d4f7a1008195acdce5a039f47d8c"
total_cost0.0554995
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
22.2222% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags3
adverbTagCount1
adverbTags
0"he said softly, as if offering advice [softly]"
89.1814% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount2773
totalAiIsmAdverbs3
found
0
adverb"softly"
count3
highlights
0"softly"
100.0000% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found(empty)
100.0000% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
63.9380% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount2773
totalAiIsms10
found
0
word"flicked"
count2
1
word"glint"
count1
2
word"unspoken"
count1
3
word"weight"
count3
4
word"footsteps"
count1
5
word"echoed"
count1
6
word"etched"
count1
highlights
0"flicked"
1"glint"
2"unspoken"
3"weight"
4"footsteps"
5"echoed"
6"etched"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences236
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount6
hedgeCount4
narrationSentences236
filterMatches
0"feel"
1"watch"
hedgeMatches
0"began to"
1"tried to"
2"seemed to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences241
matches(empty)
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs88
mean31.1
std24.19
cv0.778
sampleLengths
068
184
281
354
412
594
636
75
86
969
1056
1142
123
137
1411
152
1685
1714
1857
1938
2036
2143
2218
2341
243
2528
2624
275
2853
2917
3054
3112
3252
3340
3413
3546
366
379
3863
397
4029
413
425
432
4439
4524
469
4750
4893
4957
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount5
totalSentences236
matches
0"been scrubbed"
1"was painted"
2"being sold"
3"been paid"
4"been called was built"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount3
totalVerbs518
matches
0"was closing"
1"was heading"
2"was, standing"
81.6432% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount2747
adjectiveStacks3
stackExamples
0"short curly dark hair"
1"same burnt-sugar scent"
2"lay ahead, deeper underground,"
adverbCount111
adverbRatio0.04040771751001092
lyAdverbCount24
lyAdverbRatio0.008736803785948308
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences241
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences241
mean11.36
std7.63
cv0.672
sampleLengths
018
128
222
33
427
514
620
713
87
943
1021
115
1210
132
1414
156
1634
1712
182
1913
2020
2111
2221
232
241
253
2621
279
282
299
3016
315
326
3317
3415
3520
363
373
3811
398
4026
4122
4215
439
4418
453
463
474
487
494
37.5519% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats30
diversityRatio0.2697095435684647
totalSentences241
uniqueOpeners65
8.3333% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags3
fancyCount2
fancyTags
0"he said, voice mild (say, voice)"
1"he said softly, as if offering advice (say softly, offer)"
82.5218%