Run: 2026-02-17-01KHMQE6P2CK6AEPG1NYY3K4SF

Run Details

Duration:
2m 49s
Cost:
$0.073133
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 hammered Camden like a drumline, beating the streets into slick black mirror. Harlow Quinn cut through it with her head down, breath sharp in her throat, suit jacket plastered to her ribs. The suspect—hood up, cheap nylon flashing in and out of neon—was a dark smear ahead, legs churning, skidding, recovering. He peered back once, a white blur of worry, then dropped over the curb into a tangle of market stalls lashed shut for the night. “Stop!” she shouted, pointless over the hiss of water and the rattling chain link. He bolted, and Harlow followed, her soles slapping cold puddles that swallowed the shapes of dead leaves and cigarette ends. Her calf twinged. She drove on. The worn leather of her watch strap scraped against her wrist bone when she flung her arm up to shield her face from a splash. An hour ago she’d watched him through The Raven’s Nest window, framed by green neon, watched him nod to a shadowed man in the back and slip something small and hard into his pocket. The Nest’s maps and photographs had thrown grainy nets across the barroom walls. She’d sat with her tea going cold and her eyes on the bookshelf that rumor said moved. She’d pretended to be any other late customer, and he’d pretended not to clock her. When he finally went out into the rain, she let him have five steps before she slid from her stool. “Backup en route,” her radio had said, too bright with the excitement of a uniform on a slow shift. Now its voice was muffled in her pocket under the weather. Thunder rolled. Sirens wailed somewhere else, someone else’s storm. The suspect darted left at a shuttered newsagent plastered with last decade’s promotions, right again under a railway arch with its bricks weeping black. Harlow’s lungs burned. She tasted metal and river air washed down from the canal. He stumbled on a broken pallet and recovered with a fast, panicked hop. Then the ground fell away into a lower world: a flight of worn stone steps, rain sweeping down them like a glass sheet. He took them two at a time. Harlow hit the railing, cold as bone under her palm, and hauled herself after him. Water leapt her ankles. The air grew cooler, held its breath. Camden’s glow thinned. On the landing below, a steel door nested in white-tiled wall—Tube-era tile, curved edges gone a little green with damp. Someone had scraped the graffiti off; ghosts of letters clung on. A hand-painted sigil that looked like a stylized rib cage was tacked above the handle. A man in a dark coat stood beside the door with his hands in his pockets, not moving to shelter under the lip of concrete. His hair was cropped close like hers, his expression impassive. The suspect skidded to a stop at the threshold and fumbled out something small, pale, glinting dully. He presented it. The door-keeper’s eyes flicked to it and away. He pulled the door. Warmth and noise breathed up as if a beast down below had exhaled. The suspect darted inside. Harlow reached the landing ten seconds later, chest heaving. She wiped rain out of her eyes with the back of a knuckle and stepped forward, pulling her warrant card just enough to show black leather and a flash of metal. “Police. Move.” The man didn’t. He had a thick neck under his collar and shoulders like a wardrobe. “Token.” Her brows ticked in, then up, reflexive. She glanced at the door and got a slice of yellow light and the scent of spices, crackling fat, and something like lightning trapped in a jar. Heat brushed her face. The door began to ease itself shut on a slow hinge. “What token?” she said, keeping her voice from climbing. The man’s mouth didn’t bother with a smile. “Bone.” “I’m following a suspect into a crime scene.” She lifted the card, showed the crest like it might matter under the city. Rain drummed the steps behind her, water pooling, creeping into her sock through a split seam. “No token,” he said, “no Market.” “We can do this easy,” she said. “Or I can drag six uniforms and a sergeant down here and watch you explain this to them in the wet.” He looked past her at the empty stairs rising up into the rain, then at her left wrist where her watch was ruined-dark leather and scratches, the face fogged at the edges. His gaze was slow and sure when it came back to hers. He could carry her easily. She measured the distance from his stance to her knee and filed it away like she always did—military habits from a life she hadn’t lived, but wore in her bones. From beyond the door, a voice floated up, oily-thin: “Hurry it up, Rafe. We’re not a charity.” Harlow leaned, trying to wedge her shoulder into the narrowing slice. Her heart clocked hard. She thought of Morris, of the way his last words had been clear over the phone and soaked through with noise she’d only understood later—air moving wrong, a distant hum like bees under glass. Don’t come under, he’d said, hush-flat, and then the line had gone starved. The man—Rafe—shifted. His hand came up an inch, easy pattern for a stop. Harlow’s radio chose then to crackle uselessly: half a syllable, a fizzing sibilant. She could shout. She could head-butt him and make it personal. She could go back up to the street and wait for backup that wouldn’t know where to look, watch the city swallow her lead. “Harlow?” a new voice said, close and with a thread of surprise. She snapped her head to the side. A man stepped into the door’s fading wedge against his own reflection in the wet tile. Olive skin washed gold in the market light. Short dark curls flattened by the rain. His eyes were warm brown and tired. A Saint Christopher medallion gleamed at his throat, swinging with his quick breathing. He had a battered medical bag on his shoulder, and the T-shirt clung to a scar along his left forearm like a pale riverbed. “Tomás,” she said, more breath than voice. He looked at Rafe. They had a language between them with no words. “She’s okay,” he said. “She’s with me.” Rafe’s jaw tightened, not buying it, but he didn’t slam the door. “Token.” “I vouch,” Tomás said. His accent was Sevilla softened by years. “Emergency. They called me back in. If she stays on my hip, we’ll keep the peace.” “Tommy,” someone barked from below. “The girl!” Tomás shifted his bag, raised a palm in the universal gesture—wait, hold, this is no one’s best plan—and met Harlow’s gaze. Up close he smelled faintly of antiseptic stubbornly trying to kill blood and sweat. “You don’t want to go down there,” he said quietly. It wasn’t plea or threat. It sat somewhere in the tired middle. She cut a glance at the closing gap where her suspect had threaded himself into the world beneath London that polite men pretended didn’t exist. He was ten meters ahead and falling further. She looked at Tomás’s forearm scar, at his saint. She heard Morris say not under and pictured the green neon wash of The Raven’s Nest on her hands when she’d flattened her palm against its bookshelf for some mechanism that never gave, like superstition. She had the clique in her teeth and the taste of it was chemical and old. She nodded once. “Keep out of my way then.” Tomás huffed something that might have been a laugh and stepped aside. Rafe looked like a man forced to take a stake he didn’t like. “On him,” he said to Tomás. “You bring her out if she brings trouble in.” They slid through the door together. Heat closed around Harlow’s soaked body with an almost desolate sweetness. The sound changed from rain to voices pitched low and urgent, the soft clatter and grind of work being done. The stairs curved down into a belly of old tile and new cables. Fluorescent tubes hummed. Her shoes squeaked. The Veil Market opened at the bottom like a trick, a spill of space in the hollow where a train should have screamed through. Arched ceiling, enamel signs browning at the edges: Exit, Way Out, No Smoking. Stalls knocked together from old doors and polished crates made lanes that broke and turned in unwritten patterns. Smells collided—sharp coriander, something sugar-burned, battery-metal, wet wool. Strung bulbs cast hard light on the faces moving past each other without touching. People clocked her and looked away. No uniforms, but watchful shapes with folded arms occupied the junctions. Hoods, hats pulled low. A woman at a stall strung with bones threaded on black cord cut her gaze across Harlow with appraisal and slid a drawer shut with two fingers. Harlow went still long enough to scan. She didn’t kid herself; she was what she was even out of her skin, and this place tasted for it. She edged to the lane’s shoulder, not pressing too close to a rack of vials oily with something that threw off a blue sheen. A tall kid with a shaved head hawked packets of dried plants from a crate and never stopped talking: cures, courage, clear sight, cheap tonight only. “There,” Tomás said beside her, not pointing but angling his chin to the right. “He cut left. Hood down now. Look for the trainers.” White flashed. Harlow moved. She dropped into the flow, kept her shoulders narrow, her jaw set. At a stall that stank of tannery and engine oil, a woman hammered something that looked like a piece of chain into a different shape that refused to hold unless she murmured to it. Harlow looked away, refused the story. She threaded between a hunched man licking his finger and drawing runes in ash on a tabletop and a boy with wide greased eyes gnawing a fried something on a stick. White trainers flickered again at the edge of a draped archway marked with a chalk spiral. He’d shed the nylon. His shirt stuck black to his back. Harlow pushed through the curtain and caught a different pocket of the Market: cooler, narrower, goods under glass. A woman in a black dress eyed her from behind a display of teeth small as pearls, not all of them human. “Lose the tail,” Harlow murmured, like she was talking to herself, and scanned for a second exit. The suspect slid through a service door at the far end with the assuredness of someone who’d rehearsed this path. Harlow had the sadness of a moment when she saw herself from the ceiling—forty-one, rain-slick hair cropped short, lines around her mouth cut by habit, her watch heavy with water—and how often she’d made this same choice anyway. She went through. Tomás caught the curtain before it took his face and slipped after her. The service corridor beyond forgot the Market’s pretense and went all utilitarian: bare bricks, damp shining on them like sweat, conduit snaking along the ceiling. The hum changed timbre. It got darker without permission. Footfalls pounded ahead and then softened, like the ground had changed under the suspect’s feet. Harlow’s heart put a hard fist against her sternum. She broke into a run, the tile slick. A hand reached out of the gloom and caught her elbow. She spun, weight low, ready to break a wrist. Tomás kept his grip loose enough not to get hurt. “Not that way,” he said. He was already out of breath from trailing her. “Sellers’ loading. Security will have you in seconds.” “I don’t have seconds,” she said. “Then you don’t have a suspect either.” He tipped his head down the opposite turn, where the light pooled warmer over a set of broad steps. “Cut him off at the bay.” She didn’t ask how he knew. He’d been patching this place together long enough to learn its shortcuts the way a good paramedic learned a hospital’s blind corridors. She went. Tomás let her go, then fell in two paces behind like a man who couldn’t help it. At the bottom of the steps a bay opened where an old platform curved away. Abandoned, if you were polite; repurposed, if you weren’t. Crates stacked head-high, stamped with symbols instead of addresses. A forklift older than she was ticked as it cooled. Men worked in silence too even to be union. Her suspect flashed between stacks, head lowered. The hooded figure he’d met at The Nest had arrived ahead of him and stood at the edge of the bay marked by a red line painted along the concrete—a boundary that meant something here. “Don’t,” Tomás said, low. He knew that red meant different things in different hands. Harlow ignored it. She sped up enough to draw breath to call out and then she didn’t call because every pair of eyes in the bay had turned and there was nowhere to run but on. The hooded figure lifted a small parcel wrapped in waxed paper. The exchange was quick, practiced. Harlow took two long strides and put herself in their line. “Met Police,” she said. “Hands where I can see them.” Most people in London heard those words and played the game. Nobody here did. The hooded figure kept hands low and out of sight. The suspect’s head jerked like a rabbit’s at the edge of a hedgerow. He looked smaller here, less at home. He had a slice of stubble across his jaw and a wet lash stuck to his cheek. “You don’t know where you are,” the hood said, voice genderless, cool. “I know who you’re buying from,” Harlow said. “And I know what you’ve taken up to Silas’ bar twice a week for the past month. Which means I know enough to ruin your night without trying too hard.” A laugh sailed from the shadow of the crates, thin as fishing line. Someone shifted; someone else said hush. “Detective Quinn,” the hood said then, and her name sanded itself across her without intimacy. “You keep poking your face into holes. Last time you lost someone. How much of your memory are you willing to spend on strangers?” It bit. It always did when they pulled Morris from under her ribs and pointed at him. Harlow squared her stance and heard the step behind her, small, urgent. Tomás, moved enough to be seen but not enough to be counted as part of this. “Hands,” Harlow said, to the suspect this time. “Now.” His hands came up, empty. The waxed paper was already gone. The hood must have pockets like deep water. Movement at the edge of her vision: Rafe, or a man like him, closing the gap from the right with patience, unhurried as a tide. More behind. Enforcers. The Market flexing its dog. She could show the badge and make herself a signal fire. She could wait and get buried by their politeness. She could reach for the suspect and find her hand broken. She felt the seconds slide past like fish. She thought of the file on her desk, the clique’s name threaded through assaults and disappearances like a blood vessel, pumping quietly. She thought of Morris in daylight on a pavement with coffee, grinning, that last normal morning imprinting on her as if it could protect them from later. Tomás’s voice brushed her ear. “Walk it back, Harlow.” Not an order. A line on a map. She almost did. It would have been the reasonable thing, the career thing. It would have checked a box that said Discipline and gotten her a talking-to instead of a eulogy. She saw herself do it under the station’s old lamps and she didn’t recognize the woman who turned away. She lunged. Her hand closed on the suspect’s jacket collar. He convulsed, tried to fold, tried to bite. She wrenched him sideways, away from the hood, away from the red line, away from the clean exchange that had just become a mess. Enforcers moved. The hood stepped back, hands vanishing into cloak. Someone knocked a crate. Glass chimed and a wet, sweet smell bloomed, wrong as flowers in winter. Tomás swore in Spanish, short and shocked. Harlow ducked a fist and kept her clip at the same time. The suspect’s weight was wrong, bird-boned and slippery. He twisted like he had a hinge where other men didn’t and slid out of his jacket. She came up with canvas and empty air. Rafe put a hand out to bar her. She drove her shoulder into his sternum and felt him acknowledge her for the first time as a problem. They both stayed polite for half a second out of habit, then he grabbed. “This is your line,” Tomás said from close to her left, urgent. “Decide.” The suspect sprinted for the service tunnel, head down, wet hair shivering against his neck. The hood bled into the deeper dark. The red line gleamed like a wound. Harlow found her breath, raw and hot in her chest. She met Tomás’s eyes and saw there the same thing she felt—fear shapely enough to know its own name. “Decide,” he said again, lower. She let the jacket drop. “Down,” she said, more to herself than to anyone else, and broke after the suspect, off the sanctioned lane and into the tunnel’s throat. Voices rose behind her, bodies turning to block a path that was already gone. The air cooled and leaned. She didn’t look back. She sank into the unfamiliar, the dangerous, with her watch ticking its small, stubborn seconds against her skin and Morris’s ghost at her shoulder, both of them counting.
created_at"2026-02-17T02:41:49.161781+00:00" 2/17/2026, 2:41:49 AM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency11135
moderation_latency(null)
generation_time168877
tokens_prompt914
tokens_completion5676
native_tokens_prompt810
native_tokens_completion7212
native_tokens_completion_images0
native_tokens_reasoning3392
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"
usage0.0731325
router(null)
provider_responses
0
id"resp_0e8bb8a8af3510a1016993d4c3c2788190b82f532c0c06bdfd"
status200
is_byokfalse
latency175
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771295939-H7EkT72JvMb6t2ckDcTH"
upstream_id"resp_0e8bb8a8af3510a1016993d4c3c2788190b82f532c0c06bdfd"
total_cost0.0731325
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
40.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags25
adverbTagCount7
adverbTags
0"her radio had said, too bright with the excitement of a uniform on a slow shift [too]"
1"she said, more breath than voice [more]"
2"he said quietly [quietly]"
3"Harlow murmured, like she was talking to herself, and scanned for a second exit [like]"
4"the hood said then, and her name sanded itself across her without intimacy [then]"
5"he said again, lower [again]"
6"she said, more to herself than to anyone else, and broke after the suspect, off the sanctioned lane and into the tunnel’s throat [more]"
100.0000% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount2992
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)
79.9465% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount2992
totalAiIsms6
found
0
word"churning"
count1
1
word"flickered"
count1
2
word"flicked"
count1
3
word"glinting"
count1
4
word"weight"
count2
highlights
0"churning"
1"flickered"
2"flicked"
3"glinting"
4"weight"
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
narrationSentences231
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount4
hedgeCount3
narrationSentences231
filterMatches
0"watch"
hedgeMatches
0"tended to"
1"began to"
2"tried to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences249
matches(empty)
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs70
mean42.33
std28.98
cv0.685
sampleLengths
077
165
299
339
474
582
680
74
840
92
1017
1149
129
139
1438
156
1628
1779
1817
1962
2061
2112
227
2375
247
2520
2613
2727
287
2957
3093
319
3240
3356
3477
3548
3677
3724
3856
3998
4075
4116
4277
4341
446
4532
4647
4794
4814
4963
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount6
totalSentences231
matches
0"was muffled"
1"was tacked"
2"was cropped"
3"was ruined"
4"was ticked"
5"get buried"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount1
totalVerbs493
matches
0"was talking"
100.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount2751
adjectiveStacks0
stackExamples(empty)
adverbCount86
adverbRatio0.031261359505634315
lyAdverbCount14
lyAdverbRatio0.005089058524173028
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences249
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences249
mean11.9
std8.2
cv0.689
sampleLengths
013
120
219
325
414
520
63
73
825
934
1013
1117
1215
1320
1419
1511
162
177
1824
193
2011
2113
2223
237
2415
254
267
273
2820
2911
3015
3125
3210
3317
343
358
364
3713
384
399
4031
412
423
4313
441
457
4627
474
4811
499
40.0268% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats27
diversityRatio0.30522088353413657
totalSentences249
uniqueOpeners76
65.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags25
fancyCount11
fancyTags
0"shouted (shout)"
1"she said, more breath than voice (say, more breath)"
2"someone barked from below (bark)"
3"he said quietly (say quietly)"
4"Tomás said beside her, not pointing but angling his chin to the right (say does not point angle)"
5"Harlow murmured, like she was talking to herself, and scanned for a second exit (murmur, talk scan exit)"
6"the hood said, voice genderless, cool (say, voice)"
7"the hood said then, and her name sanded itself across her without intimacy (say sand)"
8"Tomás said from close to her left, urgent (say leave)"
9"he said again, lower (say again)"
10"she said, more to herself than to anyone else, and broke after the suspect, off the sanctioned lane and into the tunnel’s throat (say, break sanction)"
89.7043%