Run: 2026-02-17-01KHMR9BYJ2W07Q3BXZVM8NT47

Run Details

Duration:
1m 41s
Cost:
$0.062501
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="4414" name="Eva Kowalski" aliases="Eva, Evie" pronouns="she/her" species="Human" storyRole="Best Friend"> <eyeColor>green</eyeColor> <hair>curly red</hair> <height>5'4"</height> <age>26</age> <glasses>round glasses</glasses> <satchel>worn leather satchel full of books</satchel> <freckles>freckled complexion</freckles> <nervousHabit>tucking hair behind her left ear</nervousHabit> <description>Aurora's childhood friend and an occult researcher.</description> <backstory>Moved to London two years before Aurora and works as a research assistant at the British Museum's restricted archives. She holds a master's degree in Ancient History from Oxford.</backstory> </character> <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> <item id="2004" name="Veil Compass" aliases="the Compass, shadow compass" type="Tool" origin="The Veil Market"> <casingMaterial>small brass compass</casingMaterial> <faceMarkings>face etched with protective sigils</faceMarkings> <needle>points toward the nearest supernatural rift or portal</needle> <patina>casing has a patina of verdigris</patina> <creator>crafted by a Shade artisan</creator> <description>A compass attuned to supernatural energy.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the mystery genre. A detective arrives at a crime scene in an unusual location. Something is wrong — the evidence doesn't add up. A colleague is present, offering a different interpretation. Through careful observation and deduction, the detective begins to see what others have missed. 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
Detective Harlow Quinn stopped at the lip of the stairwell and let the air tell her what the briefing hadn’t. The Camden night above had been wet, all diesel and fried onions and nightclub bass. Down here it was different—cold stone, iron dust, something faintly sweet that shouldn’t have existed in an abandoned Tube station. A smell like bruised violets left in a glass. A uniform constable hovered by the taped-off entrance, trying not to look like he was hovering. His torch beam wobbled when it found Quinn’s face. “Detective Inspector Quinn,” he said, too loud in the tiled throat of the stairs. “They’re down on the platform, ma’am. It’s… odd.” Odd was what people said when they didn’t have the words and didn’t want to confess it. Quinn’s jaw tightened. She checked her left wrist out of habit—not for time, not really, but for steadiness. The worn leather watch had been with her through eighteen years of scenes like this. It hadn’t helped three years ago, either. It had ticked on, indifferent, while DS Morris stopped existing. She stepped under the tape with military precision, not because the tape mattered but because routines did. Routines kept you upright when the ground decided to shift. The stairs spiraled down into shadow. Old posters peeled off the walls in damp curls. The tiles were soot-stained, the way the city’s forgotten places always were, as if memory left residue. A smear of chalk marked the last step, a lazy arrow drawn by someone who’d wanted to be found. At the bottom, the corridor widened—and the corridor was wrong. It should have ended in boarded doors and rusted signage. Instead there were strings of paper lanterns hanging from conduit and bent rebar, glowing with a warm light that didn’t flicker like electricity. The air carried a low murmur, like a crowd heard through a wall. And there were stalls. Quinn slowed without meaning to, every instinct pushing back. A butcher’s slab laid with jars of dark liquid, a table of tarnished rings arranged in neat circles, a rack of coats that looked too heavy for a London autumn. The vendors weren’t there now, but the place held their presence the way a theatre held an audience after the curtain fell. This wasn’t a squat. This wasn’t a rave. It was the Veil Market, exactly where it had no business being. A man’s voice called from ahead. “Quinn. Over here.” Detective Sergeant Anwar Patel stood beside a crude cordon made of crime-scene tape tied to a lamppost that hadn’t been there last month. Patel’s suit was damp at the knees; he’d already done the crawling work. His expression was careful, as if he’d decided what he believed and didn’t want the scene to contradict him. Behind him, on the platform edge, another figure waited just outside the cordon: Eva Kowalski, the only civilian Quinn tolerated at anything resembling a scene, mostly because Eva’s usefulness was infuriatingly high and her fear was honest. Her curly red hair had escaped its tie and frizzed in the damp. Round glasses sat slightly crooked on her freckled nose. She clutched her worn leather satchel like it was a shield. Eva tucked hair behind her left ear when she saw Quinn, a nervous little reset. “Harlow,” she said, as if greeting her in a café and not under Camden with a body. Patel frowned at Eva, then at Quinn. “I didn’t authorize—” “I did,” Quinn said, and kept walking. She didn’t look back to see if Patel resented it. She could feel it anyway. The body lay on the platform between the yellow line and the track bed, positioned with a deliberation that made Quinn’s skin crawl. Male. Mid-thirties. Clothes too clean for a down-and-out but too cheap for a commuter. There was a gash across his throat—ugly, open, theatrical. And there was almost no blood. Quinn crouched. The tiles beneath the man’s head were dry except for a faint, glossy crescent at the edge of his collar. Not a pool. Not spatter. Not the mess a severed artery insisted on making. Patel hovered at her shoulder. “It looks like he got here after the cut,” he said. “Or someone cleaned up.” Quinn traced the line of the wound with her eyes, not touching. The edges weren’t ragged. They were… crisp, as if the flesh had been sliced with something very sharp and very clean, then held open for display. She’d seen knife wounds in alleys and kitchens and stairwells. This had the tidiness of a demonstration. “Temperature?” Quinn asked. “Cold,” Patel said. “But it’s freezing down here.” Quinn looked at the man’s hands. Fingernails intact. No defensive cuts. No bruised knuckles. His left palm was smeared with something grey-black, like charcoal ground into skin. “Bag the hands,” Quinn said. “And his boots.” Patel’s eyebrows rose. “Boot prints? There’s barely any dust.” “Exactly,” Quinn said. The platform was filthy in the way abandoned stations got filthy—centuries of soot and grit and flaked paint. But around the body, the tiles were scuffed clean in a tight oval, as if the dirt had been rubbed away by something dragged in a circle. Quinn stood and let her gaze widen. The stalls that lined the platform weren’t random. They formed a corridor that funnelled toward the body. Someone had turned the market into a stage and placed their prop in the centre. Eva edged closer, peering past the tape. “They shouldn’t be here,” she said quietly. Patel heard, of course. His mouth tightened. “Here we go.” Eva didn’t rise to it. She rarely did. She shifted her satchel to her other shoulder, the leather creaking. “The Veil Market moves every full moon. That’s… that’s one of the rules. It doesn’t stay put.” “Rules,” Patel echoed, flat. “Right.” Quinn watched him, watched the way his eyes refused to rest on anything that didn’t have a mundane label. Patel was good police. He could build a case, could read a room. He just didn’t have space in his brain for the idea that the room might be lying. “Tonight isn’t a full moon,” Quinn said. Patel shrugged. “Maybe your underground goth bazaar got its calendar wrong.” Eva’s green eyes flashed. “It isn’t a bazaar.” Quinn cut in before it spiraled. “What did uniforms see when they first came down?” Patel exhaled. “They were responding to a 999 call. Anonymous. Said there was a body in the old station. When they got here, this…” He gestured at the lanterns and stalls like he couldn’t decide if they were real enough to be insulting. “Was already set up. No one else present. No CCTV. No witnesses willing to talk.” “Willing,” Quinn repeated. Patel’s silence said yes. Quinn walked the perimeter. Her shoes made almost no sound; the station seemed to swallow noise. She paused beside a stall where glass vials lay in velvet hollows. Some were empty, some filled with liquids that caught lantern light and held it. One vial was tipped on its side, its stopper missing, a smear of iridescent residue dried on the table. Quinn didn’t touch it. The residue looked like oil in a puddle, all colours and refusal to be one thing. She moved on, scanning. The platform wall opposite the tracks was painted with old adverts and newer graffiti. A section of graffiti—thick black strokes in the shape of a crown—looked wetter than the rest. The paint gleamed. She stepped closer, tilting her head. The black wasn’t paint. It had depth, like a stain had sunk into brick and kept going. Her watch ticked in her ear. The second hand marched on, stubborn. Quinn knelt by the wall. The air here was colder, the kind of cold that didn’t come from drafts but from absence. She held her breath and listened. The murmur beneath the station’s silence rose for a moment, like distant voices leaning toward a door. Eva came up behind her, careful to stay outside the cordon until Quinn waved her in. Her shoes—practical boots—made a soft scuff on the tiles. “Do you feel that?” Eva asked. Quinn didn’t answer. She was looking at the base of the wall where brick met tile. There were scratches—fresh, pale gouges that cut through grime. Curved, as if made by something pulled free with desperate force. Patel crouched beside them, reluctantly pulled in by the undeniable. “Could be a dragged body,” he said. “Not with that curve,” Quinn said. “And not there.” She stood and looked back at the corpse. The man lay as if laid down, not dragged. His clothes weren’t torn. His boots—cheap black leather—were clean, except for the grey-black smear on the left sole. Quinn walked back to the body and crouched by his feet. She leaned close, ignoring Patel’s frown, and angled her torch at the sole. The tread was packed not with mud but with fine powder, grey and glittering. It clung in tiny facets. Eva breathed in sharply. “That looks like—” “Don’t,” Patel warned, irritated. “Don’t say fairy dust.” Eva’s mouth tightened. She pushed her glasses up with one finger, then, without thinking, tucked hair behind her left ear again. “It’s ash,” she said, controlled. “But not from fire. It’s… it’s the kind you get near rifts. Where something has crossed.” Quinn felt the old memory stir, unpleasantly vivid. Morris in the rain, laughing at something she’d said. Morris leaning too close to a case file, frowning. Morris stepping into a shadow between two parked cars because there had been a sound. A shape. A wrongness. And then Quinn calling his name until her throat tore and the alley stayed stubbornly empty. She forced her focus back to the present, to the details she could hold. “Bag it,” she told Patel. “Carefully.” Patel looked like he wanted to argue, but he motioned to the crime scene techs waiting further down the platform. They moved in with gloved hands and plastic evidence bags, their faces set in that careful neutrality people wore when they didn’t understand what they were seeing but understood it was above their pay grade. Quinn’s eyes caught something half-hidden beneath the corpse’s right elbow: a small brass compass, dulled with verdigris. It lay face-up, as if placed for discovery, its casing etched with tiny protective sigils that made her vision snag when she tried to count them. The needle trembled. Not north-south. It quivered as if impatient. Quinn didn’t touch it with her bare hand. She pulled on gloves, then slid the compass out. The metal was cold enough to bite through latex. Eva leaned in, unable to help herself. “That’s a Veil Compass,” she whispered. “Shade-crafted. It points to the nearest rift or portal.” Patel stared at the compass, then at Quinn. “You’re telling me the killer left a magic compass?” “I’m telling you,” Quinn said, watching the needle, “that someone wanted us to look in a specific direction.” The needle jerked, decisive, and pointed not at the tracks or the tunnel but at the wall with the black crown stain. Quinn held the compass steady and walked toward the wall. The needle held, unwavering. The closer she got, the more the air tightened, as if the station was bracing. Patel followed, reluctant but hooked now. “So what, he got his throat cut and then… walked through a wall?” “No,” Quinn said. “He got his throat cut somewhere else, or he didn’t get it cut at all.” Eva’s brows knit. “Harlow?” Quinn stopped an arm’s length from the stained brick. The compass needle vibrated so hard it blurred. The protective sigils on the compass face seemed to catch the lantern light and throw it back wrong, like the light didn’t like being near them. “Look at the wound,” Quinn said. “No arterial spray. No pooling. If he bled, he didn’t bleed here.” Patel folded his arms. “So he was killed elsewhere and dumped.” “Dumped through what?” Quinn asked. She gestured at the wall, at the scratches, at the scuffed-clean oval on the tiles. “There’s no drag trail. No blood trail. And this market—” she let her gaze sweep the lanterns, the empty stalls, the residue of strange commerce “—shouldn’t be here tonight. Someone set it. Someone held it in place.” Eva’s voice came soft. “To anchor a crossing.” Quinn didn’t look at her. She watched the black stain. The longer she stared, the less it behaved like paint and the more it behaved like a doorway pretending to be brick. Patel scoffed, but it sounded forced. “Or it’s a gang message. The compass is a prop. The stalls are props. Theatre.” “Theatre costs money,” Quinn said. “And time. And the kind of confidence you only get if you know the audience will show.” She thought of the anonymous call. Of the chalk arrow on the steps. Of a body posed like an offering. Of the compass placed in a dead man’s elbow crook as neatly as a clue in a puzzle box. Patel’s gaze flicked to her, sharp. “You think this is for you.” Quinn felt the truth of it settle, heavy but clean. “I think someone knows I can see the seams,” she said. “And they want me to pull.” Eva shifted, hugging her satchel closer. “It could be a warning.” Quinn’s mouth went tight. “Or an invitation.” She raised the compass until it was level with the stain. The needle nearly snapped toward it. For a second, in the glossy black, Quinn saw something that wasn’t her reflection. A sliver of light that wasn’t lantern light. A pale corridor bending away, impossible geometry. A shadow moving like a person deciding whether to step closer. Her pulse kicked. She held still. She refused to flinch first. Patel didn’t see it. His eyes narrowed at the wall, but he only saw brick and graffiti and Quinn’s stubborn attention. “Quinn,” he said, a little quieter now, “we need to call this in. Get forensics, get—” “We have forensics,” Quinn said. “What we need,” Eva murmured, “is to know who can force the Market to stay put.” Quinn lowered the compass and closed her gloved hand around it, feeling the faint tremor of its insistence. The sigils pressed into her palm through latex like raised scars. Her mind went, unbidden, to a file she kept locked in her desk drawer: Morris’s case notes, photos of an alley that looked ordinary until you stared too long. Reports dismissed with bureaucratic comfort—missing person, presumed dead. The sharp, silent absence that had taken up residence in her life. She looked at the corpse again. The man’s face was slack, eyes half-open in a dull question. He hadn’t fought because he hadn’t understood what was happening until it was done. Quinn knew the feeling. “This isn’t a dump,” she said. “It’s a drop.” Patel’s frustration sharpened. “Drop from where?” Quinn stared at the wall stain, at the scratches, at the compass needle twitching like a hound scenting blood. “From the other side,” she said. The words tasted like metal in her mouth. She turned to Patel, letting him see only what she needed him to see: confidence, control, the polished authority that made people follow even when they didn’t believe. “Seal the entrances,” she said. “No one in without my say. And get me a list of who called it in. I want the number, the tower ping, anything. Whoever invited us here thinks they’re clever.” “And you?” Patel asked, suspicion threaded through the question. Quinn slid the Veil Compass into an evidence bag, then into her coat pocket anyway, feeling its pull through fabric. “I’m going to prove they’re not.” Eva caught her eye, worry there, and something else—recognition, maybe, that Quinn was standing closer to the edge than she admitted. Quinn didn’t reassure her. Reassurance was a luxury. She glanced at her watch again as if it could tell her what came next. The second hand kept marching, steady as a heartbeat. The station murmured around them, lanterns breathing warm light into cold air. The stalls stood empty, patient, like teeth in a grin. Something had held the Veil Market in place when it wanted to move. Something had dragged a man through a seam in the world and left him like a note. Quinn faced the stained wall once more. She didn’t touch it—not yet. She let the wrongness press against her skin and memorized it. This time, she told herself, she would be the one doing the hunting.
created_at"2026-02-17T02:55:30.897523+00:00" 2/17/2026, 2:55:30 AM
model"openai/gpt-5.2-20251211"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency18014
moderation_latency(null)
generation_time100926
tokens_prompt923
tokens_completion4520
native_tokens_prompt835
native_tokens_completion4360
native_tokens_completion_images0
native_tokens_reasoning704
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"
usage0.06250125
router(null)
provider_responses
0
id"resp_06356fefe03a3772016993d83d77cc8196bfc1654e709fbd42"
status200
is_byokfalse
latency163
endpoint_id"f00142c2-6a93-49ce-9e36-5593b904ce3b"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.2-20251211"
api_type"completions"
id"gen-1771296829-VMfnNJDPQciGUvMjvsDp"
upstream_id"resp_06356fefe03a3772016993d83d77cc8196bfc1654e709fbd42"
total_cost0.06250125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags32
adverbTagCount3
adverbTags
0"he said, too loud in the tiled throat of the stairs [too]"
1"she said quietly [quietly]"
2"he said, a little quieter now [little]"
74.7566% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount2773
totalAiIsmAdverbs7
found
0
adverb"carefully"
count1
1
adverb"reluctantly"
count1
2
adverb"sharply"
count1
3
adverb"slightly"
count1
4
adverb"really"
count1
5
adverb"very"
count2
highlights
0"carefully"
1"reluctantly"
2"sharply"
3"slightly"
4"really"
5"very"
80.0000% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found
0"Patel"
100.0000% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
71.1504% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount2773
totalAiIsms8
found
0
word"flicker"
count1
1
word"flicked"
count1
2
word"trembled"
count1
3
word"quivered"
count1
4
word"velvet"
count1
5
word"unwavering"
count1
6
word"echoed"
count1
7
word"etched"
count1
highlights
0"flicker"
1"flicked"
2"trembled"
3"quivered"
4"velvet"
5"unwavering"
6"echoed"
7"etched"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"eyes widened/narrowed"
count1
highlights
0"eyes narrowed"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences240
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount4
hedgeCount3
narrationSentences240
filterMatches
0"watch"
1"see"
hedgeMatches
0"seemed to"
1"tried to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount1
totalSentences277
matches
0"feel that?” Eva"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs116
mean23.66
std16.29
cv0.688
sampleLengths
020
144
225
322
417
550
627
751
810
946
104
1161
128
1312
149
1555
1670
1732
1810
1922
2046
216
2236
2320
2455
253
268
2727
288
299
303
3145
327
3332
3414
3510
3636
375
3849
397
4011
418
4215
4358
443
454
4661
4720
4837
4923
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount4
totalSentences240
matches
0"been sliced"
1"was smeared"
2"were scuffed been rubbed"
3"was tipped"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount6
totalVerbs443
matches
0"was hovering"
1"was looking"
2"were seeing"
3"was bracing"
4"was happening"
5"was standing"
100.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount2320
adjectiveStacks0
stackExamples(empty)
adverbCount68
adverbRatio0.029310344827586206
lyAdverbCount19
lyAdverbRatio0.008189655172413794
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences277
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences277
mean9.91
std7.03
cv0.71
sampleLengths
020
115
220
39
416
59
614
78
817
93
1015
1115
127
1310
1417
1510
166
179
1817
1919
2010
2110
2223
2313
244
259
2630
2722
284
294
3012
316
323
3323
3413
3519
3637
3713
389
3911
4015
4117
427
433
447
4510
465
4723
481
491
40.6137% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats26
diversityRatio0.26353790613718414
totalSentences277
uniqueOpeners73
96.8750% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags32
fancyCount10
fancyTags
0"he said, too loud in the tiled throat of the stairs (say, tiled)"
1"she said, as if greeting her in a café and not under Camden with a body (say, greet)"
2"Quinn said, and kept walking (say, keep walking)"
3"she said quietly (say quietly)"
4"Patel echoed, flat (echo)"
5"Quinn repeated (repeat)"
6"Patel warned, irritated (warn, irritate)"
7"she whispered (whisper)"
8"Quinn said, watching the needle (say, watch)"
9"Eva murmured (murmur)"
91.9645%