Run: 2026-03-09-01KK9PVM5YZ6AKKKPAH64124KA

Run Details

Duration:
2m 42s
Cost:
$0.089942
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
By the time Detective Harlow Quinn reached the bottom of the service stairs, the smell had already worked under her skin. Old dust. Wet brick. Burnt sugar. Hot metal. Not the smell of an abandoned Tube station. She stepped off the last stair and paused under a strip light that buzzed with a tired yellow shiver. The platform spread out beneath Camden in a long curve of cracked tiles and black track, but someone had dressed the ruin before the body dropped. Canvas stalls stood in crooked rows where commuters had once queued. Extension leads looped across old benches. A hand-painted sign hung from a pillar with half its letters scrubbed off. Glass jars glittered on a trestle table. A butcher’s hook swayed from a steel beam. Police tape cut across it all in bright blue bands that looked cheap against the grime. Quinn rolled one sleeve, checked the worn leather watch on her left wrist, then walked under the tape without ducking. Her coat moved with her in a straight line. She never wasted steps. DS Tom Reeves waited beside the body with two scene techs and the duty pathologist. He had his thumbs hooked in his stab vest and the expression of a man pleased to have found the shape of a case before anyone else. “Welcome to Camden’s latest lifestyle venue.” Quinn let her eyes sweep the platform before she looked at him. “Who found him?” “Transport worker. Came down with a supervisor after somebody tripped the old power relay above ground. They found the service door off the alley open. Followed the light.” She looked up. Bare bulbs hung over the stalls on twisted lengths of wire. “Generator?” Reeves jerked his chin towards the far end of the platform. “Portable. Still warm when uniforms arrived.” “Any witnesses?” “None who wanted the trouble. We pulled three runners in the tunnel. They had nothing useful and enough fake names to print a phone book.” He spread a hand at the body. “Male. Mid-thirties. Throat cut. Pockets turned out. Watch gone, wallet gone. We’re under Camden in a secret market full of stolen rubbish and homemade narcotics. I’d put rent money on a deal gone wrong.” Quinn crouched without answering him. The dead man lay on his back near an overturned stall, one arm crooked across his chest, one hand open against the tiles. His throat had been cut from left to right. Blood dried in a dark collar around his neck and soaked the front of his shirt, but the pool beneath him sat too neatly under his shoulders and head. Not enough spread. Not enough force. His eyes bulged a touch. A bruise shadowed one cheekbone. Expensive shoes. Good leather, hardly scuffed. His coat looked wrong as well—rough wool over a shirt that came from money. The pathologist lifted a brow over her mask. “Still warm when I got here. He’d been dead under an hour.” Quinn pointed at the floor beneath the man’s head. “Who put the coat there?” Reeves glanced down. “What?” “The coat.” He frowned. The dead man’s own dark coat had been folded once and slid under the back of his head, as if someone had improvised a pillow. “One of the uniforms could have nudged it.” “No.” Quinn touched the hem with a gloved finger. “No drag on the wool. No blood transfer on the outside fold. It went under him before the cut, or he was placed on it after.” Reeves shifted his weight. “Plenty of killers know their victims.” Quinn looked at the wound again. “Then they cared enough to cushion his skull and cut his throat anyway?” The pathologist knelt beside her, peered closer, then gave a small grunt. “Blood loss here never matched a live cut. If the carotid went while the heart pumped, I’d have blood halfway to the platform edge.” Reeves straightened. “He could have dropped pressure first. Drugs. Shock.” Quinn took the dead man’s wrist. His hand had begun to stiffen. A grey smear marked the inside of his thumb. Not grease. Ash, fine as face powder. “What’s in the ash?” One of the scene techs checked his notes. “Found traces on both cuffs and right hand. Haven’t run it yet.” Quinn lifted the cuff. The shirt beneath showed faint dark flecking, tiny pinpricks across the skin. Her gaze rose to the dead man’s face. There it was. Not just the throat. Faint burst vessels in the whites of the eyes. Small dots at the lids. Pressure. She pressed two fingers lightly against either side of the neck above the wound. “Look here.” The pathologist leaned in. “Bruising under the jaw.” “And here.” Quinn touched the lower lip. “Bitten from the inside.” Reeves folded his arms. “You’re building a symphony out of one bad body, Quinn.” She stood. “You’ve got a man with signs of strangulation and a theatrical throat cut after death. That’s not a symphony. That’s a correction.” Reeves gave a short laugh that didn’t survive the air. “A correction to what? Robbery still fits.” Quinn looked at the turned-out pockets. Then at the left hand. A signet ring sat on the little finger. Gold. Heavy. Untouched. “Not if the thief ignored that.” “Couldn’t shift it fast.” “Could cut it off faster than a watch strap.” The pathologist rose and peeled one glove free. “I’ll know more at post.” Quinn nodded, then moved away from the body. The platform had the stale grandeur of a place the city forgot and other people adopted. White tiles peeled from the wall in scabs. Old Underground roundels showed through layers of soot and paint. Someone had run a market here with care. Not a squat. Not a desperate sprawl. The stalls formed lanes. Lantern hooks had been fixed into the iron beams. Chalk marks on the floor divided spaces with ruler-straight edges. Even the rubbish looked curated. Dried herbs bundled with red thread. Wax stubs the colour of old teeth. Empty velvet trays. A crate full of cloudy bottles packed in sawdust. At the far end of the overturned stall, a scene tech held up an evidence bag. “Found this under the table.” Inside sat a small brass compass gone green at the edges, its face etched with fine marks too deliberate for decoration. The glass had cracked clean across one side. Reeves gave it a glance. “Add it to the prop pile.” Quinn held out her hand. The tech passed her the bag. The compass filled her palm with more weight than it had any right to carry. Verdigris stained the hinge. A smear of blood sat in the groove near the clasp. Not much. Fresh enough to keep its shine. She turned the bag. The needle trembled. Swung. Held hard against the east side of the case. Not north. Reeves noticed the angle and shrugged. “We’re under half of Camden’s wiring. Magnetics go stupid down here.” Quinn looked up. “Then why is my watch behaving?” He had no answer for that, so he gave her the one he preferred. “Novelty item. Market trash.” She walked in the direction the needle pointed. Past a stall draped in black cloth. Past a stack of folding chairs. Past a pillar where candle wax had run down the tiles in pale veins. The needle stayed fixed, tugging at her hand through the plastic. It aimed towards the wall at the edge of the platform, where a long section of old tile had cracked in a shape too clean to be age. She stopped. The wall had been bricked up decades ago. That much was obvious from the change in pattern. Original white tile, then a rectangle of patched cream and mortar, then a second skin of soot. At ground level, grime settled everywhere except a narrow arc no wider than a shoulder. Quinn crouched. “Reeves. Here.” He came over with the patience of a man humouring a bad habit. “What?” She pointed at the platform dust. Boot prints marked the floor in layers, some sharp, some smudged, dozens of them crossing and recrossing. Near the wall, the clutter thinned. Three clear prints approached the patched section. One print turned sideways. Another overlapped it. Then nothing. No return track. Reeves squinted. “People stepped around each other.” “No.” She traced the end of the last visible tread with one finger. The dust cut off in a blunt line, as if the floor itself had swallowed the step. “You’ve got approach prints and no exit. Nobody vaulted the platform edge. Nobody went over the stalls. No scuffs on the wall from a climb.” He looked past her at the tiles. “It’s a wall.” Quinn stood and rapped the heel of her torch against the patched section. Solid on the first strike. Hollow on the second, two inches to the left. A low box note came back through the brick. Reeves’ mouth tightened. “Loose backing.” She hit it again, higher this time. Hollow. The scene tech at the body glanced over. Even the pathologist looked up from her case. Quinn stepped back and scanned the mortar lines. One vertical seam had been cleaned recently. Not thoroughly. Just enough to strip away the skin of dirt. On the tile beside it, a crescent scratch shone silver under the soot. The compass needle jammed towards the same seam with such force it clicked against the glass. Quinn held the evidence bag up beside the wall. “What did uniforms log from this area?” Reeves flicked through his notebook. “Nothing special. Dust disturbance. One broken nail. Some kind of polished bone token.” “Where?” He pointed to a small evidence marker near the skirting. Quinn walked over. In the shallow groove between wall and floor sat a white disc no larger than a pound coin, cut from bone and drilled through the centre. The string that had held it had snapped. One side bore a black thumbprint. The other carried a carved mark she didn’t recognise. She looked back at the market around her. Stalls packed in rows. Exit routes narrow. One public stair. One service door. If panic had emptied the place, she should have seen crushed displays, abandoned bags, dropped stock. Instead she had neat gaps where goods had vanished fast and clean. People had cleared this platform with discipline. Not a scramble. A withdrawal. Reeves planted his fists on his hips. “All right. Secret door. Smugglers love a secret door. Still doesn’t change the dead bloke with his throat cut.” Quinn crossed back to the body, her gaze moving between the wound, the overturned stall, and the wall. The stall nearest the corpse had gone over backwards, but the items on its shelves had not scattered in the direction of the fall. They lay in a crescent beside the left leg, as if someone had tipped them there after. Under the table, dark streaks marked the tiles. Someone had wiped them in a hurry and missed the grout. Diluted blood. A lot more than lay under the victim now. She knelt again, lowered her face close to the floor, and followed the faint smear with her eyes. It ran beneath the stall, then stopped where the cleaning had ended. Past that point, the tiles kept a thin haze of shoe polish and dirt except for two broad clean bands the width of a body dragged by the shoulders. She looked over her shoulder. “Your robbery happened after someone cleaned the floor?” Reeves came closer. “You’re stretching.” Quinn pointed without looking up. “The blood under the stall got washed. The blood under him didn’t. His pockets were turned out after the move. The ring stayed because theft wasn’t the point. The coat went under his head because somebody laid him here, then cut his throat to sell the scene.” She rose, and the words landed harder now because she had built the path beneath them. “He died somewhere else on this platform. Likely by strangulation. He was moved here. The stall was tipped to give the body a story. Then whoever ran this place left through that wall.” Reeves stared at the cleaned bands on the floor, then at the hollow patch in the brick. His certainty slipped a notch. “Why stage it at all?” Quinn lifted the bagged compass. The needle held fast to the wall. “Because whatever happened behind that patch mattered more than the body.” She stepped to the bricked section once more and pressed her gloved palm against the cold tile. A thin draught slid over her skin from somewhere it should not have existed. She turned to the scene techs. “Nobody touches this wall until I’ve got photographs, plaster casts of every print, and a structural officer down here.” Then she looked at Reeves. “This wasn’t a deal gone wrong.” She tapped the hollow seam with one finger. “Your killer didn’t run. He walked straight through here.”
created_at"2026-03-09T16:28:35.399Z" 3/9/2026, 4:28:35 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency84596
moderation_latency(null)
generation_time161547
tokens_prompt1149
tokens_completion3719
native_tokens_prompt1009
native_tokens_completion5828
native_tokens_completion_images0
native_tokens_reasoning3106
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"
usage0.0899425
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_051fc7512d3f4d480169aef53382b48194aef0d8de4e1c7796"
is_byokfalse
latency196
model_permaslug"openai/gpt-5.4-20260305"
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-1773073715-1tLPdF4BluS1U5oei0kX"
upstream_id"resp_051fc7512d3f4d480169aef53382b48194aef0d8de4e1c7796"
total_cost0.0899425
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
totalTags2
adverbTagCount0
adverbTags(empty)
dialogueSentences57
tagDensity0.035
leniency0.07
rawRatio0
effectiveRatio0
97.67% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount2148
totalAiIsmAdverbs1
found
0
adverb"lightly"
count1
highlights
0"lightly"
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)
76.72% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount2148
totalAiIsms10
found
0
word"weight"
count2
1
word"symphony"
count2
2
word"velvet"
count1
3
word"etched"
count1
4
word"trembled"
count1
5
word"traced"
count1
6
word"scanned"
count1
7
word"flicked"
count1
highlights
0"weight"
1"symphony"
2"velvet"
3"etched"
4"trembled"
5"traced"
6"scanned"
7"flicked"
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
narrationSentences187
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences187
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences243
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen48
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords2147
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions1
unquotedAttributions0
matches(empty)
50.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions53
wordCount1591
uniqueNames10
maxNameDensity1.38
worstName"Quinn"
maxWindowNameDensity3.5
worstWindowName"Quinn"
discoveredNames
Detective1
Harlow1
Quinn22
Tube1
Camden1
Tom1
Reeves15
Underground1
One6
Past4
persons
0"Harlow"
1"Quinn"
2"Tom"
3"Reeves"
places
0"One"
globalScore0.809
windowScore0.5
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences116
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount2147
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences243
matches
0"Past that point,"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs137
mean15.67
std18.47
cv1.178
sampleLengths
021
18
28
390
416
533
642
76
812
93
1028
1114
121
1317
142
1525
167
1734
185
1997
208
2112
229
235
244
252
2627
278
2835
294
306
316
3213
3312
3424
352
368
3728
384
3920
4016
418
4222
4314
442
454
464
4711
484
4910
97.76% Passive voice overuse
Target: ≤2% passive sentences
passiveCount4
totalSentences187
matches
0"been folded"
1"been fixed"
2"been bricked"
3"been cleaned"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs253
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount1
semicolonCount0
flaggedSentences1
totalSentences243
ratio0.004
matches
0"His coat looked wrong as well—rough wool over a shirt that came from money."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1266
adjectiveStacks0
stackExamples(empty)
adverbCount31
adverbRatio0.02448657187993681
lyAdverbCount4
lyAdverbRatio0.00315955766192733
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences243
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences243
mean8.84
std7.19
cv0.814
sampleLengths
021
12
22
32
42
58
619
726
811
96
1013
117
128
1316
1420
159
164
1715
1827
196
2012
213
2228
233
2411
251
2611
276
282
2925
307
3134
325
3323
349
3529
363
373
385
395
402
414
4214
438
4412
459
465
473
481
492
66.39% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats7
diversityRatio0.4156378600823045
totalSentences243
uniqueOpeners101
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount7
totalSentences163
matches
0"Then at the left hand."
1"Even the rubbish looked curated."
2"Even the pathologist looked up"
3"Just enough to strip away"
4"Instead she had neat gaps"
5"A lot more than lay"
6"Then she looked at Reeves."
ratio0.043
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount32
totalSentences163
matches
0"She stepped off the last"
1"Her coat moved with her"
2"She never wasted steps."
3"He had his thumbs hooked"
4"She looked up."
5"He spread a hand at"
6"His throat had been cut"
7"His eyes bulged a touch."
8"His coat looked wrong as"
9"His hand had begun to"
10"Her gaze rose to the"
11"She pressed two fingers lightly"
12"She turned the bag."
13"He had no answer for"
14"She walked in the direction"
15"It aimed towards the wall"
16"He came over with the"
17"She pointed at the platform"
18"She traced the end of"
19"He looked past her at"
ratio0.196
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount111
totalSentences163
matches
0"She stepped off the last"
1"The platform spread out beneath"
2"Canvas stalls stood in crooked"
3"Extension leads looped across old"
4"A hand-painted sign hung from"
5"Glass jars glittered on a"
6"A butcher’s hook swayed from"
7"Police tape cut across it"
8"Quinn rolled one sleeve, checked"
9"Her coat moved with her"
10"She never wasted steps."
11"DS Tom Reeves waited beside"
12"He had his thumbs hooked"
13"Quinn let her eyes sweep"
14"She looked up."
15"Reeves jerked his chin towards"
16"He spread a hand at"
17"Quinn crouched without answering him."
18"The dead man lay on"
19"His throat had been cut"
ratio0.681
61.35% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences163
matches
0"By the time Detective Harlow"
1"If panic had emptied the"
ratio0.012
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences55
technicalSentenceCount3
matches
0"She stepped off the last stair and paused under a strip light that buzzed with a tired yellow shiver."
1"Police tape cut across it all in bright blue bands that looked cheap against the grime."
2"The dead man’s own dark coat had been folded once and slid under the back of his head, as if someone had improvised a pillow."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags2
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags0
94.9965%