Run: 2026-03-18-01KM083THFQ5QSPT93JFBN66MR

Run Details

Duration:
37.5s
Cost:
$0.024323
Provider:
OpenAI

Model input

System
You are an expert fiction writer. Always keep the following rules in mind: - Write in past tense and use General English spelling, grammar, and colloquialisms/slang. - Write in active voice - Always follow the "show, don't tell" principle. - Avoid adverbs and cliches and overused/commonly used phrases. Aim for fresh and original descriptions. - Convey events and story through dialogue. - Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. - Skip "he/she said said" dialogue tags and convey people's actions or face expressions through their speech - Avoid mushy dialog and descriptions, have dialogue always continue the action, never stall or add unnecessary fluff. Vary the descriptions to not repeat yourself. - Put dialogue on its own paragraph to separate scene and action. - Reduce indicators of uncertainty like "trying" or "maybe" When writing text: - NEVER conclude the scene on your own, follow the beat instructions very closely. - NEVER end with foreshadowing. - NEVER write further than what I prompt you with. - AVOID imagining possible endings, NEVER deviate from the instructions. - STOP EARLY if the continuation contains what was required in the instructions. You do not need to fill out the full amount of words possible.
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <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> Continue the story using the following instructions: <instructions> 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. </instructions>

Model response

AI
Rain still clung to Camden when Detective Harlow Quinn descended the iron stair under the station service gate and stepped into the dead throat of the Tube. The air changed at once. Up top, the street had smelled of diesel, wet chip fat, and bus brakes. Down here, the station carried damp brick, hot wiring, old pennies, and something sharper that bit the back of her nose like crushed herbs left too long in a drawer. Her worn leather watch sat cold against her wrist as she checked the time, then the bone token in her hand. The shard of pale knuckle had a hole punched through it and a black cord threaded through. It had let her through the outer ward without argument. A constable in a fluorescent vest lifted the cordon for her. He looked past her shoulder, then at the token again, as if he expected it to crawl. Beyond the barrier, The Veil Market had gone still. Stalls lined the abandoned platform where the old Camden branch had once carried commuters into the city. Tarps hung slack from bent poles. Glass charms and rolled papers lay in careful rows beneath black cloths. Enchanted lanterns had gone dim, leaving the station lit by hard police floods and the sick yellow of emergency strips. A few traders stood against the wall with folded arms and closed mouths, their eyes fixed on the centre of the platform where the tape ringed a body under a silver sheet. Quinn took in the scene without slowing. Her shoes clicked once on the tiled edge, then stopped. The platform surface had been swept clean in long rectangular patches, but the dirt had not gone. Grime showed in the cracks, and old stains stared through the polish like bruises under skin. Someone had moved equipment aside in a hurry. Someone else had put it back in neat lines. That was never the hand of panic. Panic kicked chairs, trampled signs, left blood on everything. This scene looked arranged. A man in a dark coat waited beside the body with one hand on his hip and the other buried in his pocket. Detective Inspector Martin Vale, according to the name on the temporary scene board propped beside the tracks. Mid-forties, narrow face, hair shaved short at the sides, a face that had learned the shape of impatience and kept it. He watched Quinn cross the platform with the expression of a man forced to share a lift. He flicked his gaze to the token in her hand. “You took your time.” Quinn slid the cord around her fingers and let the bone tap once against her palm. “Enough time for someone to move half the market and leave the other half pretending they’d seen nothing.” Vale’s mouth tightened. He angled his head at the sheeted corpse. “Male. Found behind Stall Twelve, near the old signal cabinet. No visible ID. No sign of a struggle. My people pulled a knife and a packet of powder from his coat. Looks like a drugs handover that went bad.” Quinn looked past him to the body. The silver sheet rose over the chest and broke again at the knee where a boot showed, heel turned slightly inward. No blood had reached the edge of the sheet. No bootsprint crossed the clear patch around him. The floor beneath the body had been washed in a rough rectangle, but the tile joints still held a dull brown stain that told a different story. “Then why’s the floor cleaned around him and dirty under him?” Vale spread his hands. “The traders had a minute to tidy before we locked it down. They don’t fancy their merchandise breathing down the backs of their necks.” Quinn walked closer. The smell sharpened. Not just damp and dust now. Copper. Burnt sugar. A trace of antiseptic stripped thin by time. She crouched beside the sheet and lifted one corner with gloved fingers. The dead man’s face looked wax-pale under the station lights. He had a thin cut across the throat and a neat puncture under the left ear. His eyes had been closed by someone with a careful hand. That bothered her more than the wounds. Careful hands belonged to the living, and the living lied with them. She let the sheet fall back. “Who found him?” “A trader called Nessa. She heard a noise near the service door, came round, saw him on the floor. When she reached for help, the lights flickered. By the time she got back, half the stall shutters had come down.” “Half?” Vale nodded toward the far end of the platform where two metal shutters hung down over locked stalls. The others stood open. Some trader had already covered crates with canvas. A hanging chain swung once, then settled. “Those shutters are on a manual fail-safe. Old station gear. One jammed when the power dipped. Didn’t want to risk the rest.” Quinn rose, scanned the platform edge, then the tunnel mouth beyond the body. A yellow line of tape sealed the track bed, but the rails beyond disappeared into dark. No footprints crossed the dust on the nearest sleeper. No one had run from the tunnel. No one had stumbled out. Yet the traders kept their eyes turned that way, not at the corpse. A woman’s voice came from behind the cordon. “He wasn’t taken by a blade.” Quinn turned. Eva Kowalski stood near a pillar with her satchel hugged against her ribs, round glasses catching the floodlight. Her curly red hair had escaped its tie and curled around her cheek. She had tucked a strand behind her left ear twice already by the look of it, once by the fold of her fingers, once by the line of the hair itself, as if her body had no patience with nerves. Her freckles stood out pale against the grime-smeared light. Vale gave her a flat look. “You’re still here.” Eva pushed her glasses up her nose. “You called me down for a reason.” Quinn glanced between them. Eva worked in the British Museum’s restricted archives, buried in old records and things the city preferred not to name. If anyone on the platform could read the shape of a hidden thing, it was her. Eva stepped around a cluster of evidence markers and stopped beside Quinn, careful not to cross the line around the body. Her gaze fixed on the dead man’s ear, then the floor, then the silver sheet. “The throat cut came after he died.” Vale made a small sound through his nose. “Convenient.” Eva did not look at him. “The blood pattern’s wrong. There should have been spray on the sheet if he’d been standing. There isn’t. The puncture under the ear looks ritual. He was marked, not attacked.” Quinn crouched again, this time lower, and lifted the dead man’s sleeve with the tip of a gloved finger. A wristwatch had left a pale ring on the skin. Cheap leather strap, worn smooth. The watch itself was gone. No, not gone. The indentation on the wrist had softened at one edge, as if something broad and flat had pressed there recently. “Where’s his left hand?” Quinn asked. Vale frowned and stepped closer. “The sheet covered it.” Quinn lifted the corner farther. The left hand lay at the hip, fingers curled. The thumb was stained black beneath the nail. Not blood. Grease? Coal dust? No, finer. Verdigris, ground from aged copper. She reached into her pocket and drew out a penlight, sweeping it over the fingernails. Green flecks clung there, bright as tarnish on a church bell. She looked up toward the stalls. “Which trader sold metal today?” Vale barked a laugh with no humour in it. “Metal? We’re in an underground black market. They all sold metal.” “Not raw copper. Not brass.” Eva’s fingers tightened on her satchel strap. “Stuff from the old railway fittings. Wires. Hinges. Locks.” Quinn stood and walked to the nearest stall. A row of tiny bottles sat uncapped on a cloth. Next to them lay a tray of charms, keys, and beads made from bone and shell. The trader had marked the cloth with a chalk sigil in the corner. Her eyes moved over the goods, then stopped at a shallow scrape in the concrete behind the table. A compass casing flashed green and gold in the light. Brass. Small. Etched with protective sigils. Verdigris patina crusted the rim. The needle jerked hard to the north for a heartbeat, then spun toward the dark service tunnel beyond the signal cabinet. Quinn picked it up with two fingers. Eva’s voice lowered. “That’s a Veil Compass.” Quinn turned it over. The face markings sat sharp beneath a layer of grime. It looked expensive, handled often, and rushed. The needle shivered, then pointed straight through the wall. “Nearest rift,” Eva went on. “It tracks supernatural openings. If that’s pointing at the tunnel, then something tore through there.” Vale crossed his arms. “Or someone dropped a toy.” Quinn didn’t look at him. She kept her eyes on the compass. “Who owns it?” Eva shook her head once, then glanced toward the traders. “Could belong to anyone who trades beyond the usual rules. But if it was here, it would have been used to check the flow. People in the Market don’t leave this sort of thing lying about.” Quinn set the compass on the stall cloth and let her fingers rest on the edge of the table. The cloth had been changed after the blood. She could see it where the weave shifted at the fold. Clean cloth over old stains. She looked back at the corpse, then at the powder packet Vale had mentioned. The seal on it was intact. The packet had not been opened. A dealer carrying product into a hidden market carried it loose or hidden, not sealed and undisturbed. Showmanship. A plant. “His pockets?” she asked. Vale nodded toward an evidence tech. “Empty apart from that packet and a ledger stub. No wallet. No phone.” Quinn lifted her chin. “Check his coat lining.” The tech looked to Vale. Vale gave a slight jerk of his head. The tech bent, unzipped the body bag at the seam, and tugged the coat open. Quinn watched the inner pocket, the hem, the shoulder. Something pale flashed in the lining, then vanished when the fabric settled. “Again.” The tech opened the pocket more carefully and frowned. He reached in, pinched, and drew out a small carved sliver. Bone. Quinn took it before anyone else could. Not the entry token itself. A shaving. Freshly cut, edges clean, drilled through with a hole no bigger than a pinhead. The kind of offcut that came from a token before someone polished it smooth. Eva drew a sharp breath. “He had access.” Vale’s brow furrowed. “To a market with a gate made out of dead man’s leftovers? Great.” Quinn rolled the sliver between gloved finger and thumb. The cut ran straight, as if made by a jeweller’s saw. Someone had trimmed the token after entry. Someone who wanted the token reduced, not kept. She looked at the body again. The dead man’s collar had a pale crescent of dust along the inside seam. Not platform grime. Bone dust. He had worn the token on a cord at his neck, then stuffed the trimmed piece into his coat lining. He had not lost it. He had hidden part of it. “Not a buyer,” Quinn murmured. Vale frowned harder. “What?” Quinn walked to the service door beyond the signal cabinet. A strip of yellow tape blocked it. The door’s lock plate had a scratch running across the metal in a clean arc. Left to right. A tool. Not forced. Turned. Deliberate. The hinge pins had not been touched. She nodded toward the scratch. “He entered by token. The token got cut after. He hid the offcut because he knew someone would check his pockets.” Eva followed her glance and stopped dead. “He worked here.” “No,” Quinn answered, eyes still on the door. “He worked around here. He knew the rules, but not well enough to stay alive.” Vale rubbed a hand over the back of his neck. “You’re reaching.” Quinn turned to him at last. “No. You’re looking at the dead man and the powder packet and calling it a bust-up. But the powder’s unopened. The watch is gone. The hands were cleaned. The blood’s under him. Someone killed him somewhere else, carried him in, and used the market’s own chaos to hide the transfer.” Vale opened his mouth, then shut it. Quinn went on, voice level. “The compass didn’t point at him. It pointed at the tunnel. He didn’t die from the market’s magic. He died near something that opened in there, then somebody staged the rest to look like a theft gone sideways. The market’s a cover. The real scene sits behind that door.” Eva looked at the service door, then at the dead man, and her mouth went thin. “If it opened in there, it didn’t stay open for long.” Quinn held the bone sliver up to the light and turned it. On one side, a smear of black lacquer glinted at the edge of the cut. Not dirt. Sealant. Used on hidden compartments, collector’s boxes, and locked cases. She looked past the door, past the dark track tunnel, and fixed on the old signal cabinet bolted to the wall beside it. The cabinet’s paint had flaked in one long vertical line. Someone had dragged a narrow case behind it. The floor there had been wiped, but the wipe left a crescent of grit in the crack. Quinn stepped toward the cabinet and reached for the handle. “Open that.” The tech hesitated. Vale looked from her hand to the tunnel, then back to the body, and the line between his brows deepened as the cabinet door clicked under Quinn’s grip.
created_at"2026-03-18T10:33:27.357Z" 3/18/2026, 10:33:27 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency32203
moderation_latency(null)
generation_time36983
tokens_prompt1149
tokens_completion5022
native_tokens_prompt1009
native_tokens_completion5237
native_tokens_completion_images0
native_tokens_reasoning2341
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"
usage0.02432325
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_06db503a61703ba20169ba7f7807a88195a22c20ee1196149d"
is_byokfalse
latency820
model_permaslug"openai/gpt-5.4-mini-20260317"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773830007-2uoj460HbFUDYGLGIqs5"
upstream_id"resp_06db503a61703ba20169ba7f7807a88195a22c20ee1196149d"
total_cost0.02432325
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags5
adverbTagCount0
adverbTags(empty)
dialogueSentences44
tagDensity0.114
leniency0.227
rawRatio0
effectiveRatio0
95.69% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount2322
totalAiIsmAdverbs2
found
0
adverb"slightly"
count1
1
adverb"carefully"
count1
highlights
0"slightly"
1"carefully"
100.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found(empty)
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
89.23% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount2322
totalAiIsms5
found
0
word"flicked"
count1
1
word"flickered"
count1
2
word"scanned"
count1
3
word"etched"
count1
4
word"furrowed"
count1
highlights
0"flicked"
1"flickered"
2"scanned"
3"etched"
4"furrowed"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences189
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences189
filterMatches
0"watch"
hedgeMatches
0"try to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences228
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen51
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords2322
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions7
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions73
wordCount1809
uniqueNames14
maxNameDensity1.66
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Quinn"
discoveredNames
Camden2
Detective2
Harlow1
Quinn30
Tube1
Veil1
Market1
Inspector1
Martin1
Vale18
Kowalski1
British1
Museum1
Eva12
persons
0"Harlow"
1"Quinn"
2"Market"
3"Inspector"
4"Martin"
5"Vale"
6"Kowalski"
7"Museum"
8"Eva"
places
0"Camden"
1"British"
globalScore0.671
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences131
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount2322
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences228
matches
0"turned that way"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs110
mean21.11
std21.93
cv1.039
sampleLengths
027
197
228
39
487
567
616
74
878
910
104
1116
1218
1311
1439
1572
1611
174
1824
1935
2056
216
223
2340
241
2537
2622
2763
288
296
302
3180
326
333
347
357
3640
3736
387
398
401
416
4230
4339
4423
456
465
474
4860
496
90.41% Passive voice overuse
Target: ≤2% passive sentences
passiveCount8
totalSentences189
matches
0"been swept"
1"been washed"
2"been closed"
3"was gone"
4"been changed"
5"been opened"
6"been touched"
7"been wiped"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs296
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences228
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1812
adjectiveStacks0
stackExamples(empty)
adverbCount51
adverbRatio0.028145695364238412
lyAdverbCount5
lyAdverbRatio0.0027593818984547464
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences228
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences228
mean10.18
std8.35
cv0.82
sampleLengths
027
15
214
330
421
517
610
711
817
99
1017
116
1212
1320
1432
157
1610
1717
1816
198
209
217
229
234
2423
2517
2621
2717
2810
294
3016
3118
323
338
3439
357
3621
379
388
3927
4011
414
4224
433
443
456
461
472
488
4912
49.71% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats10
diversityRatio0.32456140350877194
totalSentences228
uniqueOpeners74
20.08% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences166
matches
0"Freshly cut, edges clean, drilled"
ratio0.006
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount29
totalSentences166
matches
0"Her worn leather watch sat"
1"It had let her through"
2"He looked past her shoulder,"
3"Her shoes clicked once on"
4"He watched Quinn cross the"
5"He flicked his gaze to"
6"He angled his head at"
7"She crouched beside the sheet"
8"He had a thin cut"
9"His eyes had been closed"
10"She let the sheet fall"
11"Her curly red hair had"
12"She had tucked a strand"
13"Her freckles stood out pale"
14"Her gaze fixed on the"
15"She reached into her pocket"
16"She looked up toward the"
17"Her eyes moved over the"
18"It looked expensive, handled often,"
19"She kept her eyes on"
ratio0.175
44.34% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount138
totalSentences166
matches
0"The air changed at once."
1"Her worn leather watch sat"
2"The shard of pale knuckle"
3"It had let her through"
4"A constable in a fluorescent"
5"He looked past her shoulder,"
6"Stalls lined the abandoned platform"
7"Tarps hung slack from bent"
8"Glass charms and rolled papers"
9"Quinn took in the scene"
10"Her shoes clicked once on"
11"The platform surface had been"
12"Grime showed in the cracks,"
13"Someone had moved equipment aside"
14"Someone else had put it"
15"That was never the hand"
16"Panic kicked chairs, trampled signs,"
17"This scene looked arranged."
18"A man in a dark"
19"Detective Inspector Martin Vale, according"
ratio0.831
30.12% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences166
matches
0"If anyone on the platform"
ratio0.006
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences76
technicalSentenceCount3
matches
0"The floor beneath the body had been washed in a rough rectangle, but the tile joints still held a dull brown stain that told a different story."
1"She had tucked a strand behind her left ear twice already by the look of it, once by the fold of her fingers, once by the line of the hair itself, as if her bod…"
2"The indentation on the wrist had softened at one edge, as if something broad and flat had pressed there recently."
25.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags5
uselessAdditionCount1
matches
0"Quinn answered, eyes still on the door"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags4
fancyCount1
fancyTags
0"Quinn murmured (murmur)"
dialogueSentences44
tagDensity0.091
leniency0.182
rawRatio0.25
effectiveRatio0.045
87.0417%