Run: 2026-02-17-01KHMR2NAS74G0GCHMZZY3A6ZY

Run Details

Duration:
2m 53s
Cost:
$0.075753
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 cut the air to ribbons. It hissed off the green neon of The Raven’s Nest and made the puddles on Dean Street glow an unwholesome color, as if the city had bled out underfoot. Detective Harlow Quinn stood in the lee of a crooked doorway with her coat collar up, the wet doing its best to creep down her neck. The worn leather strap of her watch had darkened with it. She didn’t mind. Nineteen years of stakeouts had taught her to befriend the discomfort and count the sounds: late-night laughter, tires spitting water, the rattle of a too-loud bass line from a car crawling by. The Raven’s Nest wore its secrets openly. Inside, old maps and black-and-white photographs fought for space on the walls, the place dim and warm even from across the street. She’d spent an evening in there last month, watching men who didn’t belong pretend that they did, noting which booth the bartender stole a glance at before answering hard questions. In the wash of the neon tonight, the door swung open and cast a slice of yellowed light, and the man she’d waited for stepped out into the rain. Tomás Herrera pulled his hood up with one hand, the motion easy. Warm brown eyes scanned the street without lingering. The Saint Christopher medallion on his throat flashed once, a dull wink where a streetlight got through the rain. His other hand kept a grip on a canvas duffel slung close against his ribs. He moved like someone who knew where ambulances should be and why they were late. Short curly hair beaded with droplets, olive skin gone ash-gray under the neon. Quinn slid off the doorway and moved with him, her steps a practice in anonymity. He cut north, shoulders hunched, the duffel careful against his ribs. She matched his pace and let him have twenty meters. The rain made it easy to be a shadow. He picked side streets and the narrowest alleys, places where laughter from a pub died painfully quick and the bins were overfull. Twice, he glanced back. The second time, his gaze slid within a breath of where she stood under a broken sign for a tailor that had gone out of business in the eighties. She felt the twinge in her knee from a long-ago sprint guttering out and told it to stop being sentimental. When he broke into a run, he did it without theatrics. One moment he was walking; the next, his pace tilted forward and lengthened. Quinn pushed off and chased, her breath steady, her hands away from the holster. Her feet hit water and jumped it before thought. A black cab nosed through an intersection and she cut in front of it, the driver’s curse swallowed by the rain. “Herrera!” she called once, because names did good work and because sometimes people made stupid choices when they heard them. He looked back, widened his stride, vanished into a slick of shadow where a scaffolding covered the sidewalk. She followed him under, pace even, the smell of wet wood and rust. He fired through the gap and into a wider road, flagged on the first bus shelter as if it had been waiting for him all night. Camden. Northern line. She knew the angles he had left. He dipped down a set of stairs that yawned open like a mouth. Quinn took them three at a time, hand scraping tile, feeling the smoothness of thousands of hands before hers. The Underground’s breath hit her in the face, hot and old, spiced faintly with ozone. She should call it in. She didn’t. Eighteen decorated years had taught her that when a lead wore a pulse this live, radio chatter only attracted other hungry things. On the concourse, he skimmed a ticket gate with the ease of someone who had planned this. He didn’t jump it. He touched something to the reader that was not an Oyster card, a small pale disk that flared cold blue, and the gate sighed open like it had been relieved of a burden. He didn’t look back at all this time. He knew where she would be. That sent a tidy lick of fear up her spine and made her close the distance too much. He reached the escalator. She hit the adjacent one and matched his run, their bodies at halves of a mirror. He took the southbound platform and listened once, head tilted. Feet on tile. Air moving in ways anyone who rode the line at night learned to read. He chose another set of stairs instead—Service Only, roped off, the sign a faded authority. He slipped under the rope like a snake, ducked his head, took the stairs two at a time and was gone. Quinn stopped at the rope, the tile sweat-cold under her palm. The rain had become distant. In the hum of the place, she heard other sounds layered under: drums muffled by distance, a bell with too many harmonics. She looked at the rope, at the fat knot in the middle of it as if somewhere a scout troop had practiced here, at her own breath flattening against the cold. Morris had been a regular man—a good one, a pain in her arse, brave because he was embarrassed to be anything else. He’d died three years ago in a disused building by the river while a man in a stained coat bled from eyes and nose and then, simply, wasn’t there anymore. There had been no camera footage that explained why. There had been no coroner’s report that made it sound like anything but an aneurism. For three years, her dreams smelled like wet rope and old stone and Morris’s last joke. Quinn ducked under the Service Only rope and went down. The stairs ran long, the walls here older tile with Victorian flourishes, grime trapped behind the glaze for a century. Her hand brushed it and came away slick. A rat retreated without panic, steps clicking like fingernails. Somewhere ahead, that layered sound grew louder: drums and chimes and something that might have been a market hawker’s voice reduced to consonants by stone. At a landing, the corridor forked. To the left, a new door with a complicated lock, the kind you couldn’t force without waking the dead. To the right, the tile gave way to brick, the curve of an old tunnel mouth, dark as it gets. The air moved from that direction, bringing smells that didn’t belong in a Tube station—earth and pepper and something iron. Quinn went right, shoulders narrowing without her say-so. Her watch vibrated, a worthless habit; she tapped the face with her knuckle, a superstition that didn’t turn the seconds back. Her hearing did that thing it did when every nerve decided the next step mattered. She crept. The figure at the gate could have been a bouncer from any nightclub except for the strings of small polished bones at his throat and the absolute lack of interest in looking alive. He stood with his weight on his heels, eyes half-lidded. Behind him, the gate had once been a barrier for paying customers. Now it was only memory and paint. On a crate beside him lay a bowl of tokens—coins, shells, bone chips, all carved or polished in some intimate way. Herrera stepped up, set his own token—a neat oval, a knuckle bone maybe, etched with a symbol she didn’t recognize—into a flat of steel in the man’s palm. The man pressed it. It chimed once, a small, high sound that made Quinn’s molars ache. He lifted the gate and Herrera passed through without breaking stride. Quinn came close enough to feel the gatekeeper’s eyes cut across her like a razor. He looked at her face, took in the hair cropped tight to the skull, the square of her shoulders, the faint military run in how her weight sat. He saw the decision sitting behind her eyes and bared his teeth like a dog grinning. He tapped the bowl with a knuckle. “Token,” he said. His voice could have been the station’s. She had none. She had a warrant card and the ghost of a partner and a watch that said with unpleasant honesty that she had been at this a long time. She kept her voice easy, lifted her empty hands. “I’m following a suspect. Police business.” “Bone,” he said, indifferent. “Or go home.” She looked past him into the tunnel. Light bloomed there, not incandescent or neon but something that floated, bluish and greenish and flickering like cold fish under the surface of a river. Stalls. A press of bodies. The glimpse-y sense of a hundred transactions. Her breath tried to do fast math and she pushed it back to a calmer column of numbers. There had to be another way in. The maintenance corridor to her left had a latch like a London back garden: cheap and old and reinforced badly after a theft thirty years ago. She looked at it, looked at the gatekeeper, and turned like she had thought better of everything. She took three slow paces and then cut down the corridor, her boots quiet. The gatekeeper’s soft laugh followed her as if carried by the draft. Her multitool slid into her palm without looking. The habit was older than some of the cuts on her hands. She worked at the lock with a careful speed and opened it on the first try, heart making sure she knew how clever she wasn’t. Inside, the corridor narrowed, ducking under a tangle of pipes and cables. She went crab-like, shoulders scraping, a ridiculous way for a decorated detective to move. She did it anyway. A hatchway opened onto a mesh catwalk. Light breathed up through the grating. She looked down and saw the Veil Market. It ran along what had once been a platform and across the tracks into an opposite platform, a long rectangle of light and color carved into London’s backbone. Stalls had grown like fungi: tarps stretched between steel columns, tables made from old door slabs, a line of mason jars gleaming with navies and greens that pulsed when you looked past them. The ceiling dripped in places, a slow weeping, and someone had arranged brass basins to catch it. Smoke hung at shoulder height, smelling of cloves and something her mind refused to name. Words in languages she didn’t have lined up inside her ear and knocked without getting anywhere. Buyers moved in knots and trickles, all of them wrong for this time of night, and then she realized wrong for the human registry at all. Some had eyes that caught light the way alley cats’ did. One woman’s mouth lingered open too long around a laugh and showed teeth filed very straight. Even in that mess, Herrera wasn’t hard to find. He stood near a stall strung with dried herbs and paper packets labeled in a hand neat enough to calm you. His profile read more like a good son than a criminal, which she supposed was the point. He had unzipped his duffel and held out something wrapped close in plastic. The stall-keeper, a man with a moustache like a knife-blade and sleeves rolled to show old ink, took it in two hands and weighed it with a care that looked like respect. Herrera’s scar peaked white along his left forearm when he let go. It gave her an anchor: a particular violence, a particular past. She had to choose between staying up here and being a pair of eyes, or dropping into the press and doing the more stupid thing. Her fingers found the rail. It was as wet as the streets had been. She climbed down a rung ladder rusted to hell and came up behind a stall selling antiques that along with being old also hummed. Her shoulder brushed a row of black-and-white photographs clipped to a wire. People in them blinked too slowly when she moved. She kept her eyes forward. “Detective,” a voice said low behind her. Her hand went to the emptiness at her hip in reflex and then to the pocket where a handcuff key had lived forever. She turned. Herrera stood there with the empty duffel and water in his eyelashes. He had come around a canvas partition silent as a ghost. Up close, he smelled like rain and disinfectant and a kind of clean sweat that said he’d been running honestly. The Saint Christopher lay cold against his chest. He didn’t reach for her, didn’t step in. He just met her eyes, those warm ones that made you want to think the best of him. “Herrera,” she said. The old habit: last names kept things from getting messy. “This isn’t where you should be,” he said, in the polite voice of a man telling someone her tire looked low. His English carried that soft Andalusian music even now. “You’re coming with me.” He looked past her, over her shoulder. Something crossed his face, not fear but calculation. “No,” he said gently. “Not tonight.” “We can do this without cuffs and fuss, or I can—” “Do you have a token?” She didn’t answer, but he read it. He spread his hands. “Then you don’t have authority here.” He stepped sideways, a dancer’s economy. The stall-keeper said something in a language that shrugged off her sense of it and set a small brass bell ringing, a tiny alert. The hum of the place shifted. Not everyone looked, but those who did had the same interest the rain had: relentless, indifferent. Herrera went into the spill of bodies, that duffel flattened against him again. She could take him. She had taken people in worse odds with less room. But the air here moved wrong and hands too ready slid under coats. A woman with a scar tattooed across her lips watched Quinn with pure curiosity. If she made a grab here, she’d be underwater immediately. Don’t be stupid, Morris had used to say in her head, not like a warning but like a prayer to a small god who didn’t have good attendance. She eased into the slipstream of Herrera’s path, keeping three paces, then two, the crowd temporarily allowing it. He stopped at a table where knives lay on velvet, their steel black up to the edges. He said a word to the seller, a boy with a saint’s face and acrylic nails, and was handed a parcel wrapped in oilcloth with delighted gravity. He tucked it into the duffel and moved on. She couldn’t hear prices. She saw only the nods, the touches, the way he threaded through this as if he had done it so often the place bent a little to let him by. He cut toward an arch at the back where bricks had been knocked out long ago. A curtain hung in it, a faded red with a pattern of vines. Two men stood there with their feet planted like furniture. They had the same look about them as the gatekeeper: not bored so much as uncaring. One wore bone earrings that ticked against his neck when she first saw him laugh at something secret. Herrera reached them and lifted his hand. The guard didn’t ask for speech. He took the bone token again, touched it to a metal plate hidden behind the curtain. It chimed, but lower this time, a sound that seemed to happen in Quinn’s chest more than in air. The men looked past Herrera at her, interest sharpening like knives coming out for a picnic. She could either close the space and make a problem loud enough to get her thrown into a dark she didn’t know the seams of, or let him go somewhere even worse. She stepped forward. One of the men moved to block her, palm up. He gestured at a small wooden sign she hadn’t seen from the angle before. Bone required, it said in neat block letters, and even the English looked imported. Below it, a dish held tokens. All of them wore their history: the notch where someone’s nail had worried at it over decades, a spit-polish shine that came from living at a throat, a little groove like a thumbprint. Herrera watched her with no triumph. “Quinn,” he said quietly. It was the first time he’d used her name like that. rain gathered on his eyelashes and hung there. “What’s behind there?” “Not for you.” “You think you get to decide that?” “No,” he said. “I think the room does.” She didn’t flinch. She didn’t look away. She breathed slow and found the place inside where she had put the last case she’d failed to solve, the last mother who’d asked her why. She took out her warrant card and held it up, a useless piece of plastic in this light. One of the men looked at it a polite second, then at her watch, then at her face. He did not move. Quinn scanned the tables beside her. On a string of charms near the antique stall, something bone-white, oval, etched with the simplest of patterns—crosshatches—hung on a fraying cord. The vendor, a woman with hair like ink spilt and fingers stained yellow at the tips, watched Quinn’s eyes find it. She tapped the trinket with one bitten nail. “That one’s spoken for,” she said. “How much?” “A story and a favor.” Quinn’s mouth thinned. Behind her, people moved as if they were on a tide she hadn’t felt before. In front of her, Herrera waited, his patience a kind of courtesy she could hate him for. Down the arch, beyond the curtain, a wash of cold air moved against her face and brought with it the smell of night in a field far from any road. It made her bones do a small, precise ache. Her hand closed on the warrant card until the plastic creaked. Morris would have called her by her first name and said, Don’t. Then he would have stepped in alongside her because that was what they did, and if they were going to be fools they would be matched set. He wasn’t here. Quinn set the card down on the edge of the table as if she were laying a bet. She took out her wallet, found cash, notes wet around the edges. She put those down too. The vendor didn’t glance at the money. The vendor kept her hand on the token and raised an eyebrow. “A story and a favor,” she repeated, and the words seemed like they were an old exchange rate no one could lower even for the police. Quinn swallowed. The tunnel’s lights gave her back nothing of herself in their reflection. She leaned in, voice low enough to be eaten instantly by the market’s hum. “A man disappeared in front of me,” she said. “Three years ago by the river. He left his wedding ring on the floor, and when I took it to his wife I had to tell her I’d lost him, and I hadn’t. He’d been taken. I don’t know by who. I’m here to find them.” She found the favor in her mouth, tasted it, hated it. “If I live through tonight, and you come to me needing one thing done under the law—one thing—you get it.” The vendor’s smile carved new lines in her face, not all of which resolved as human. She lifted the token by its cord and set it in Quinn’s palm with chilly care. It felt like bone because of course it was. Herrera shook his head, barely. “Don’t,” he said again, with no heat now, only the quiet grief of someone who patched alone too often. “Watch me,” she said. The guard held the metal plate out like a Eucharist. Quinn set the bone token against it. The chime came, and this time it was so low it might have been the rusted bones of London itself giving way. The men looked at one another. He lifted the curtain. On the other side, darkness moved like an animal shifting its weight. Quinn slid under the curtain and into it, shoulders squared, mouth dry, the watch heavy against her wrist. Her pulse went up a notch and then found its rhythm. Behind her, someone started to laugh soft, and the sound bent at the edges of what funny meant. Ahead, somewhere, Herrera’s footsteps landed, steady, a man who knew too many hallways in too many emergency rooms. Quinn could pull back. She could step out and call this in and build it case by proper case that would crumble when it brushed this world and fall as dust over her hands. Or she could put both boots on this narrow road and risk that it wanted to swallow her. She pictured the Notting Hill flat with the stack of cold case files on the chair where a guest would never sit, the tea ring on the top one. She pictured the shape of Morris’s ring on a velvet pillow in Evidence, the chain of custody between her and closure a worry-bead she’d worn smooth. She went forward, into unfamiliar and into dangerous, bone in her pocket and the taste of a promise on her tongue like something iron.
created_at"2026-02-17T02:53:03.615046+00:00" 2/17/2026, 2:53:03 AM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency30821
moderation_latency(null)
generation_time173319
tokens_prompt914
tokens_completion6135
native_tokens_prompt810
native_tokens_completion7474
native_tokens_completion_images0
native_tokens_reasoning3072
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"
usage0.0757525
router(null)
provider_responses
0
id"resp_0dd9ba171d4aad1c016993d761b3408193a16d9251a58c1b0a"
status200
is_byokfalse
latency162
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771296609-xcS0qxWiMGqXQMiTONH7"
upstream_id"resp_0dd9ba171d4aad1c016993d761b3408193a16d9251a58c1b0a"
total_cost0.0757525
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
38.0952% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags14
adverbTagCount4
adverbTags
0"he said gently [gently]"
1"he said quietly [quietly]"
2"she repeated, and the words seemed like they were an old exchange rate no one could lower even for the police [like]"
3"he said again, with no heat now, only the quiet grief of someone who patched alone too often [again, only too often]"
91.6318% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount3585
totalAiIsmAdverbs3
found
0
adverb"gently"
count1
1
adverb"slowly"
count1
2
adverb"very"
count1
highlights
0"gently"
1"slowly"
2"very"
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)
74.8954% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount3585
totalAiIsms9
found
0
word"gleaming"
count1
1
word"velvet"
count2
2
word"weight"
count3
3
word"footsteps"
count1
4
word"etched"
count2
highlights
0"gleaming"
1"velvet"
2"weight"
3"footsteps"
4"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
emotionTells1
narrationSentences248
matches
0"was embarrassed"
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount3
hedgeCount3
narrationSentences248
filterMatches
0"watch"
hedgeMatches
0"tried to"
1"seemed to"
2"started to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount3
totalSentences262
matches
0"pretend that they"
1"did that thing"
2"risk that it"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs70
mean50.8
std37.69
cv0.742
sampleLengths
0107
188
282
345
475
568
677
710
876
9106
1063
1169
1292
1310
1462
1573
1638
17138
1866
1910
2046
217
2269
2369
2475
2521
26162
27115
2825
2964
307
3125
3277
3313
3430
354
3621
3711
385
3917
4052
4164
4228
43105
4473
4596
463
4777
4829
493
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount5
totalSentences248
matches
0"been relieved"
1"was gone"
2"was embarrassed"
3"was handed"
4"been knocked"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount2
totalVerbs572
matches
0"was walking"
1"were laying"
88.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount3422
adjectiveStacks2
stackExamples
0"sweat-cold under her"
1"lay cold against his"
adverbCount102
adverbRatio0.029807130333138514
lyAdverbCount21
lyAdverbRatio0.0061367621274108705
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences262
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences262
mean13.57
std8.64
cv0.636
sampleLengths
06
129
226
311
43
532
67
722
830
929
1012
118
1219
1315
1415
1513
1615
1711
1810
199
2022
214
2229
2320
2411
2513
2614
279
2821
2920
3018
3113
3226
331
342
357
3613
3719
3815
395
402
4122
4217
434
4433
458
466
4718
484
4916
38.9313% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats29
diversityRatio0.2633587786259542
totalSentences262
uniqueOpeners69
85.7143% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags14
fancyCount5
fancyTags
0"he said, in the polite voice of a man telling someone her tire looked low (say, look)"
1"he said gently (say gently)"
2"he said quietly (say quietly)"
3"she repeated, and the words seemed like they were an old exchange rate no one could lower even for the police (repeat, seem like be lower)"
4"he said again, with no heat now, only the quiet grief of someone who patched alone too often (say again, patch)"
89.2511%