Run: 2026-02-17-01KHMQRVQFW6JQX1H783TP8R9E

Run Details

Duration:
39.6s
Cost:
$0.010141
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
The green neon of the Raven's Nest bled into the rain like an accusation. Letters warped in the slick sheen of Soho pavement; the bar's window fogged with other people's breath and cigarette smoke. Harlow Quinn watched the reflection of the sign fracture over the puddles from the alley opposite, hands shoved into the pockets of a thin raincoat. She kept her shoulders square and her jaw set, the way she had been taught to carry herself when a case was raw and the city smelled of salt and diesel and something sharper that she couldn't name. Inside, through the fogged glass, men and women moved like pieces on a dim board. Old maps lined the walls, black-and-white photographs of places that once mattered. She had sat for an hour and a half on a stool at the bar, listening and cataloguing. The bookshelf in the back—the way it was offset and without reason—had been the giveaway. She'd read the room before they knew she was part of the furniture. A man in a threadbare coat—too young to have earned the lines at his mouth—rose from the back room and fumbled for the door. He glanced north with the nervous, shallow look of someone who expects pursuit. Harlow moved. The city shed its warmth and became a series of angles: the exact distance of a sprint, the angle of a leap to clear a fallen crate, where to plant a foot to avoid wet metal. She ran without thinking and with the kind of precision that made junior officers sit up in briefings. Rain spat against her face; the leather of her watch strap whispered against her wrist when she checked the time—a mechanical habit she used to measure the urgency of a moment. "Stop!" she called. Her voice split the night, sharp, purposeful. The man didn't stop. He vanished through the alley mouth like every small thing that had ever frightened the city—fast and ashamed. She pursued, boots slapping, breath a metronome. The alleyways closed in: laundry lines, a stray cat ducking under a dumpster, a broken mirror shard that threw her face at her for an instant—tired, cropped hair plastered to her scalp, eyes set and hard. She thought of DS Morris when the man slipped past a blind turn and how Morris had once said, Don't get tangled in the fancy stuff. Not everything pretty is bad. The memory skidded and exposed the rawness beneath. Morris had died on a case that didn't fit any ledger: his body found in a place that smelled like boiled iron and old leaves. Harlow had been told it was an accident. She'd learned to mistrust "accident." The man bolted across a side street and pushed through a curtain of rain to the step-down into Camden, toward a closed-off stairwell with graffiti scalloped like seaweed. She recognized the route by feel: the direction of the wind, the faint hum of a different human traffic beneath—an undertone beneath the rain that tasted like old coal. The abandoned Tube entrance loomed, its metal gate warped and tagged, but the stair beyond it was open, the darkness cut by the occasional sputter of a sodium lamp. Harlow didn't hesitate. She hit the stairs two at a time, lungs working the way they'd been trained to do in field exercises—control through exertion. The city above contracted into a smear of orange and neon; the smells changed, damp stone and oil and an undercurrent of something floral and sharp. Her shoes echoed. She felt the pace of a heartbeat in her temples as the distance closed between her and the man. He was still close enough to see the outline of shoulders under his coat. The platform was not derelict so much as repurposed. Where the tracks would have been someone had strung canvas and hung lanterns, and a low murmur of voices rose like heat. An archway led to a corridor where crude stalls lined both sides, their wares half-shadowed; jars gleamed, paper-wrapped parcels glinted, a scent like resin and frying oil threaded the damp air. The man paused at what looked like a checkpoint: two bodies, a person leaned against the tiled wall who spoke in soft syllables, and a hand that reached back into a pocket and produced a token. Harlow skidded to a stop thirty feet away and saw it—a small bone carved smooth, notched around the rim with a pattern that felt older than fashion. It fit between two fingers and gleamed with a bone-gray polish. The one holding it slid it across to the silent guard, a small ritual exchange, and the wall between them seemed to blur. The guard watched the token, then the man, then the token again. There was a quiet that would have been comical on a suburban morning and outright sacrilege here: everyone was accustomed to the market's rules. Bone token, Harlow thought. She had read the phrase once in a half-year report marked down for "local color" and dismissed it as myth. Veil Market, they called it on a forum she had skimmed in the early hours of insomnia—an underground black market beneath Camden, said to move locations every full moon, a place for enchanted goods and banned substances. She had kept the file anyway. She had a habit of keeping small things, like receipts and scraps of memory, until they built their case. The guard glanced up, eyes narrowing at the line of rain-swept space between the stair and the entrance. He wasn't uniformed; his clothes were patched in a way older than thrift. He made a small gesture of refusal, the kind you make when you want to test the law in a place that politely refuses to answer. Harlow closed the distance three steps at a time. The man with the token took a step forward; something in the ritual shifted and the seam in the air—thin as breath—opened an inch. He slipped through. The guard follow-through? His hand moved to the slot to receive the token, and the man clutched him like a choice. There was no time to think. She lunged. Her fingers closed on bone and glazing wood and the edge of a leather cuff. The man twisted; a whisper of pain, the scent of cigarette smoke and something mineral. Harlow's hand came away with the bone token in it, and for a moment she felt absurdly brave, like a burglar in a child's fantasy. "Hands," she said. It wasn't a question. It hadn't been anything since Morris. Hunters knew how to ask things simply. The guard moved to block, body broad and unremarkable, and a dozen glances cut to her from the stalls, assessing the intrusion with the sleepy contempt of people who'd seen signals before. "Lady, that's not how—" the guard began. He had the voice of someone who'd been a bouncer two lifetimes earlier. "It's evidence." Harlow's voice had the sharp edge of a person who'd trained room-clearing and paperwork and the long, slow ache of a case that didn't fit tidy boxes. "I'm Metropolitan." The claim hung, damp and implausible. In that underground breath, police meant nothing. The guard's mouth twisted. The man who'd slipped through was already shuffled away by three others, lost in the bustle of the market. Harlow felt that small, liminal panic—the kind that pushes people to take reckless things or to hold. Morris's face flashed: notched, confused, blood dark as tea in his hair. The memory steeled rather than softened her. She could wait at the stair and call it in, sound the alarm and watch the market seal itself again, watch whatever exchange she was after disappear. She could go back up, chalk a stalemate, write a report that would get filed and suffocate. Or she could step through. Her fingers closed around the bone token. It was heavier than it looked, cold as a promise. She thought of her watch, the worn leather strap, the small scratch on the face where time had scuffed against a doorframe. Eighteen years on the force had taught her the arithmetic of decisions: delay multiplies. Evidence cools. Secrets breed. "You're not from here," the guard said, softer now, as if it might be a warning or an invitation. There was a weight to the quiet, as if sound itself understood not to rouse whatever slept below. "Neither are you," Harlow said. The words were truer than anything she meant them to be. She pushed the token through the slot because she had to know. Her hand was steady—military precision had become her default when the heart suggested fleeing. The slot didn't clunk shut like a turnstile. Instead, the world inhaled. The washing of rain and distant traffic dropped away, muffled by a curtain of silk or sound. The air on the other side smelled like iron and chamomile and something that clicked at the back of her teeth. Lantern light pooled and bled across wood crates. Voices had the texture of old coins. A banner swung overhead, hand-painted sigils that made Harlow's skin prickle, and stalls bloomed from the walls like fungi after a storm. People moved with the practiced indifference of those who make their living slipping in and out of law. Some wore scarves like sigils, others had the stooped attentiveness of artisans. A woman in a shawl with silver in her hair sold moth-winged paper at a back table. A boy with a nose for the illicit adjusted bottles in a tray that glowed faintly. Jars of moonlight stacked in a stall; someone clucked when a vial cracked. It smelled of spices and old leather and something sweet that was not edible. Harlow kept her hand on the bone token in her pocket and let the market register itself. She moved with the silence she reserved for rooms where the wrong word breaks a thing. Her eyes catalogued. A man hunched over a table worked furiously with wire and bone; he chopped at a tiny skull with wet-handed concentration. A woman wrapped in shawls measured out strings that hummed when released. Nothing here was what her reports called ordinary. Near the center of the market, beneath a lamp that gave off a halo like a small sun, a small knot of bodies had gathered. One of them leaned back, fingers clamped to a wound on his forearm where blood had pooled like ink. Beside him, a man with dark curly hair moved with a steadyness that stopped Harlow mid-step. He worked with gloved hands, cloth pressed to the wound, and his face was open and young and focused. Around his neck hung something small and warm: a Saint Christopher medallion that caught the lamplight and gleamed. Harlow hadn't seen many paramedics in the underground life she'd been chasing, but something knotting in her chest recognized the motions. The hands were sure, the fingers efficient, and there was a particular tilt of the head she knew from hospital corridors—someone who had measured pain and refused to let it dominate. The man moved methodically, sewing a rag with an impossible needle, whispering directions under his breath. Her training nudged her forward. Her suspicions leaned the other way. The sight of someone tending wounds in a place that trafficked in the impossible was the kind of detail that didn't sit neatly on a paper trail. She edged closer, keeping her voice low. "Sir," she said, and it registered. He didn't look up; he just palmed a bandage and turned it like a craftsman checking a tool. The patient at his feet breathed shallow, quick, the way people do when they've been frightened into being alive. "You're not supposed to be here," Harlow said. The truth in it was twofold. He was not supposed to be here; she, perhaps, was not supposed to be here either. The medallion shifted as he bent, and for an awful, intimate second she thought of home altars and hospital corridors and the faces of people she'd helped and lost. The man straightened. He met her gaze, steady, a mild surprise and then a small, practiced caution. He had the warm brown eyes that could be sympathetic or simply tired, and there was a scar along his arm, silver and thin at the forearm, the kind a careless life leaves behind. Harlow's mouth found the words before she allowed her mind to catalogue what they implied. "You shouldn't be here," she said again. He pushed a collar down and reached instinctively for the medallion at his neck, an unconscious gesture of comfort. His hands were damp with someone else's blood. "And yet," he said, with a cadence that belied a life used to borders, "people keep finding their way." For a heartbeat, the market shifted around them. The man with the medallion smiled faintly, not warm so much as resigned. Harlow's mind traced back the night's geometry: the Raven's Nest, the secret room, the token, Morris. Questions stacked like ammunition. She should have radioed for backup. She should have retreated while she could write a clean report. Instead she tightened her grip on the bone in her pocket, the cold pressure a reminder that some doors opened only once. The decision didn't feel like courage. It felt like necessary violation. She stepped further into the market, away from the stair and the rain and the safety of law that lived above in files and hours. The noise folded around her—vendors haggling in low, musical voices, a bell that chimed like a throat clearing. The medallion gleamed as the man bent again over his task, and Harlow realized with a slow, unwelcome clarity that the world that had taken Morris didn't stop for conscience. She moved deeper, and the neon of the Raven's Nest became a memory, a bright lie she had left behind. The market watched her pass, a hundred small eyes cataloguing the intruder. Somewhere beyond a curtain of scarves she heard the soft clink of coins and something else, like a pulse. The bone token warmed in her pocket as if it were alive, and she told herself she was following a suspect, that every step was necessary. Down in the undercity, choices hardened faster than concrete. Harlow Quinn had nothing to do with sentiment. She had a case, a missing partner, and eighteen years that taught her to go where others would not. She kept walking. The market closed around her like a question that demanded an answer.
created_at"2026-02-17T02:45:28.842273+00:00" 2/17/2026, 2:45:28 AM
model"openai/gpt-5-mini-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency16673
moderation_latency(null)
generation_time39488
tokens_prompt914
tokens_completion3515
native_tokens_prompt810
native_tokens_completion4969
native_tokens_completion_images0
native_tokens_reasoning1984
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"
usage0.0101405
router(null)
provider_responses
0
id"resp_063776c38a37de0c016993d62090948196bdd051c851f31160"
status200
is_byokfalse
latency110
endpoint_id"c4f66d01-20b0-4c27-a225-438ea22fda43"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-mini-2025-08-07"
api_type"completions"
id"gen-1771296288-d6hKdBcqacwgaoxV1Q3N"
upstream_id"resp_063776c38a37de0c016993d62090948196bdd051c851f31160"
total_cost0.0101405
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
91.6667% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags8
adverbTagCount1
adverbTags
0"she said again [again]"
100.0000% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount2446
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
79.5585% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount2446
totalAiIsms5
found
0
word"loomed"
count1
1
word"silk"
count1
2
word"steeled"
count1
3
word"weight"
count1
4
word"echoed"
count1
highlights
0"loomed"
1"silk"
2"steeled"
3"weight"
4"echoed"
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
narrationSentences160
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount2
hedgeCount1
narrationSentences160
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences161
matches(empty)
68.8447% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs38
mean63.53
std24.84
cv0.391
sampleLengths
097
173
237
387
432
5120
686
787
898
997
1086
1157
1257
1363
1452
1520
1631
1772
1849
1957
2037
2142
2287
2390
2477
2597
2668
2745
2843
2959
3066
317
3246
3358
3433
3573
3677
3751
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount8
totalSentences160
matches
0"been taught"
1"get tangled"
2"been told"
3"been trained"
4"was accustomed"
5"were patched"
6"get filed"
7"been frightened"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount1
totalVerbs398
matches
0"was following"
100.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount2408
adjectiveStacks0
stackExamples(empty)
adverbCount63
adverbRatio0.02616279069767442
lyAdverbCount13
lyAdverbRatio0.005398671096345515
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences161
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences161
mean14.99
std8.96
cv0.598
sampleLengths
014
120
225
338
415
512
618
715
813
924
1013
112
1236
1318
1431
153
167
174
1818
197
2036
2126
225
238
2425
258
265
2728
2829
2929
303
3122
3226
333
3419
3514
369
3722
3831
3936
4027
4111
4223
4312
4424
454
4620
4737
486
4919
40.0621% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats16
diversityRatio0.2981366459627329
totalSentences161
uniqueOpeners48
50.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags8
fancyCount4
fancyTags
0"the guard said, softer now, as if it might be a warning or an invitation (say, be)"
1"she said, and it registered (say, register)"
2"she said again (say again)"
3"he said, with a cadence that belied a life used to borders (say, bely border)"
90.0078%