Run: 2026-03-18-01KM07ZJGNNF6V6WSJTJM3SXW8

Run Details

Duration:
16.6s
Cost:
$0.013910
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
The stairwell down to the abandoned Tube station stank of wet concrete and old dust. Detective Harlow Quinn took the steps one at a time, one hand on the rail, the other on the worn leather watch at her wrist. The call had come in half an hour ago, too neat, too clipped. Possible body beneath Camden. No public access. No sign of forced entry. Camden. Beneath Camden, if the report held true. Quinn passed a broken sign that still carried half a faded line: WAY OUT. Someone had spray-painted black circles over the letters. Someone else had scratched them clean again. At the bottom, the platform opened up under strips of portable lighting. Yellow tape cut across the space in hard lines. Two uniformed constables stood at the edge of the scene with their shoulders set and their hands too near their belts. One of them stared at the tunnel mouth like it might open and swallow him. The other kept glancing at the ceiling. Quinn took in the station in one sweep. Closed ticket gates rusted shut. A row of dead adverts buckled under damp. A line of overturned market stalls, the kind she had only seen in whispers and police briefings, not in daylight reports. A stall with black velvet folded over its frame. Another with glass vials scattered across the platform like broken teeth. A smell of incense fought with the metallic tang of blood. And the body. It lay on the tiles beside a pillar, but not in any way that made sense at first glance. The dead man wore a dark coat, smart shoes, and a courier bag slung across his chest. His head rested against the pillar as if he had taken a seat and nodded off. One hand still gripped a brass disc the size of a coin. Quinn stopped beside the tape and looked across the platform. “Who called it in?” A constable jerked his chin toward a woman standing near the body. “Detective Quinn. DS Voss. CID took the initial call.” Voss wore a rain-dark coat and a face carved into hard lines. He had the look of a man who kept his irritation in the same pocket as his notebook. He turned when Quinn stepped under the lights, and his gaze flicked once to her watch before landing on her face. “Glad you made it,” he said. “You’ve got a mess.” Quinn’s eyes moved back to the corpse. “You don’t say.” Voss folded his arms. “Male, early thirties. No wallet. No phone. No witnesses who’ll give a straight answer. The market’s emptied out except for a few traders who claim they heard a noise like a train hitting stone. This station wasn’t used for anything official, so we’ve got trespass, possible homicide, and a room full of people who lie for a living.” Quinn crouched near the body, careful not to step inside the chalk lines. The dead man’s face had gone waxy around the mouth. His eyes stared at the fluorescent strip above him. No blood pooled beneath him. None on the tiles. A dark stain marked the collar of his coat, but not much more. She pointed at the hand. “What’s he holding?” Voss glanced down. “Token. Maybe for the market. One of the traders said they used bone tokens to get in.” Quinn lifted her eyes. “You asked a trader?” “He was already here when we arrived. Said he found the body. Said he didn’t touch anything.” Quinn looked at the brass disc. Too smooth. No edge wear. Not bone, not by her eye. She leaned closer, enough to catch the fine grooves across it. Protective sigils, shallow and precise. She reached for her evidence pouch, then paused. “No gloves in the bag?” Voss asked. “I’ve got gloves.” She slid them on and peeled the disc from the dead man’s fist. It came free with no resistance, like he had only rested his fingers there. The surface felt cold enough to sting. The sigils caught the light in a thin ring. A Veil Compass. She didn’t need the name from the brass. She knew the craft. Shade work. That particular clean geometry around the rim, the verdigris on the casing, the needle beneath the glass ticking in tiny, restless steps. The needle pointed away from the platform and into the tunnel beyond. Quinn turned the compass over in her palm. The needle jerked, then steadied, not toward the body, not toward the market stalls, but past the far end of the platform where the station wall had cracked open with age. Voss watched her. “Recognise it?” “Maybe.” “You’ve seen one before?” “I’ve seen things that looked like it.” She slipped the compass into an evidence pouch and stood. “Where’s the blood?” Voss frowned. “At the victim?” “There isn’t enough.” He looked back at the body, then at the stain on the collar. “Maybe he bled internally.” Quinn’s gaze tracked to the pillar. A handprint, faint and brown, sat half-hidden where someone had brushed against the old paint. Not fresh blood. Rust, maybe. Or iron-rich water. She stepped closer and crouched again, this time looking at the tile seams. The body hadn’t lain there long enough to leave a proper mark. She pointed to the toes of the dead man’s shoes. “He didn’t fall where he died.” Voss’s jaw tightened. “Why not?” “No pooling under the head. No drag marks. The coat’s not creased under the shoulder. Someone placed him here after he was dead, or he died somewhere else and was moved before blood could settle.” One of the constables shifted his weight. “But we checked the tunnel. No other body.” Quinn looked up. “I wasn’t looking for another body.” She studied the station again. The market stalls formed a loose semicircle around the central platform. Not random. People had arranged themselves around the dead man without meaning to, or they had cleared a space after finding him. A small patch of salt sat in a broken line near the stairs. Not enough for a ritual circle. Enough for a threshold. Voss followed her gaze. “We’ve got traders saying there was some sort of disturbance. One of them swore the victim staggered out of the tunnel already dead. Another says he came in holding that compass. Another says he bought something from a stall and walked straight into the wall.” Quinn’s mouth twitched. “All of them, useful.” “That’s one word for it.” She stepped to the edge of the chalk outline and bent over the dead man’s coat. A faint white residue clung to one cuff. Fine powder. She rubbed it between thumb and finger through the glove. Chalk? Ground shell? No. The grains held a sheen under the light. Bone ash. Her eyes narrowed. The collar of the coat showed the same dust. Not much. Just enough to smear. She turned toward the nearest stall, where a row of jars sat on a shelf with their labels peeled away. One jar had tipped on its side. The seal had burst. Beneath it, a scatter of powder ringed the base of the wood. Bone. Quinn looked back at Voss. “You called this a killing. I’m not convinced it began that way.” His brows drew together. “The bloke’s dead.” “Dead, yes. Killed here? That’s the question.” She walked to the stall and crouched. The tabletop held stains and scrape marks, and under them a circle had been cut into the wood with a blade or a nail. Not a symbol. A channel. Around it, tiny pale flecks clung in the grain. She touched one with a fingertip. Human tooth enamel. Her chest tightened a fraction. Voss watched her from the platform. “What?” “Where’s the trader who found him?” “Interview room upstairs.” “There’s a tunnel access behind the stalls?” “Service passage, blocked. Why?” Quinn stood and wiped her glove on a scrap of paper from her pocket. “Because your dead man didn’t come here to buy anything.” Voss’s expression hardened. “You’ve got something. Out with it.” She moved back to the body and pointed to the left wrist. The sleeve had ridden up a little, exposing a crescent of pale skin. No watch. No ring. But there, below the wrist bone, sat a thin red line. “Restraint mark,” she said. “Not from rope. Something narrow. Leather, maybe. Held tight enough to bite.” Voss looked down. “So he was grabbed.” “Yes.” “Then dragged in?” “No.” Quinn tilted her head. “Held while something was done to him.” Voss went still. “Done how?” She crouched beside the body and used two fingers to lift the dead man’s chin just enough to see his mouth. The lips had darkened at the corners. Tiny cuts scored the inside of the lower lip. He had bitten through something hard. Quinn stood again. “He swallowed.” Voss stared at her. “Swallowed what?” “A token, if I had to guess. Not this compass. Something smaller. Bone, likely. Made to open a path or seal one. He swallowed it after someone forced it in his hand.” “That’s a reach.” Quinn turned, walked three steps to the pillar, and pointed at a narrow crack in the tile at its base. A drip line ran from the crack toward the tunnel mouth, a thin dark thread lost beneath the dust. “Not a reach. Look at the stain.” Voss came closer. She knelt and ran a gloved finger just above the line without touching it. “Water doesn’t travel straight over this floor unless there’s a slope. This is a run-off line from the tunnel.” He looked to the passage she indicated. “The service tunnel?” “No. Somewhere else.” One of the constables spoke up, quieter now. “There wasn’t another entrance.” Quinn stood and faced the station wall opposite the platform, where old ceramic tiles formed a pale grid. Most of them had cracked or fallen away. One section near the far end had fresh plaster patched over it, too clean for the rest of the station. The patch sat where no platform sign had ever been needed. Her gaze fixed on the floor below it. “Who blocked that passage?” Voss opened his notebook. “Station maintenance records are useless. This place should’ve been sealed years ago.” “Then it was sealed for a reason.” Quinn walked toward the patched wall and stopped before it. She examined the plaster, the hairline fracture around its edge, the way the dust clung only to the lower seam. “Not maintenance. Cover.” Voss came up beside her. “Covering what?” Quinn pointed to the floor. There, beneath a strip of tape and a spray of grime, a square outline cut through the old tiles. A hatch. Not a public one. Smaller. Hidden under the grime and the market’s debris. The edges sat flush with the floor, but someone had forced it closed with a metal bar bent like a nail. Voss stared. “We searched the obvious access points.” “You missed this because it wasn’t obvious.” She crouched and traced the outline with a gloved finger. A faint dusting of bone ash ringed the seam. Fresh scrapes marked the corner where the bar had been levered back into place. “Someone opened this hatch,” she said. “Then they covered it before anyone arrived.” Voss looked from the hatch to the body. “The trader says he found the victim right here.” “He found what was left above ground.” Quinn rose, and for a moment the lights painted the sharp bones of her face in white and shadow. She had seen enough staged scenes to know when the stage itself had been built wrong. The dead man had not collapsed in a fight. He had not been stabbed, shot, or beaten senseless. He had passed through somewhere that should not have opened, and the evidence around him had been dressed to hide the route. She took the compass back from the evidence pouch and set it flat in her palm. The needle quivered hard, then swung, then settled toward the hatch under her feet. Voss saw the movement. His mouth flattened. “That thing points to the opening?” “To a rift, if it’s working.” “You’re telling me there’s a supernatural hole under Camden.” “I’m telling you your victim carried one in his pocket.” He rubbed a hand over the back of his neck. “Christ.” Quinn looked at the dead man again. The suit. The courier bag. The bone ash. The restraint mark. The tooth enamel on the stall. A man brought here with something in his hand, forced to swallow a token, then placed like a prop in front of a closed hatch. She clicked the compass shut and tucked it away. “He wasn’t the target,” she said. “He was the key.” Voss stared at her, then at the hatch, then back at the corpse as if the body had shifted under him. “And the trader who found him?” Quinn’s eyes narrowed. “He wasn’t a witness. He was waiting.” The constable at the tape cleared his throat. “Detective?” Quinn turned. “What now?” He looked past her to the tunnel mouth, where a draft moved cold across the platform and stirred the edges of the evidence markers. “Someone’s coming up from below.”
created_at"2026-03-18T10:31:08.07Z" 3/18/2026, 10:31:08 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1145
moderation_latency(null)
generation_time16359
tokens_prompt1149
tokens_completion3419
native_tokens_prompt1009
native_tokens_completion2923
native_tokens_completion_images0
native_tokens_reasoning120
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"
usage0.01391025
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_0973355dd9c4556a0169ba7eec25f8819398b158799307215e"
is_byokfalse
latency203
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-1773829868-EoUdB0fTXWKehbZJoAyP"
upstream_id"resp_0973355dd9c4556a0169ba7eec25f8819398b158799307215e"
total_cost0.01391025
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
totalTags8
adverbTagCount0
adverbTags(empty)
dialogueSentences78
tagDensity0.103
leniency0.205
rawRatio0
effectiveRatio0
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount2196
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
88.62% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount2196
totalAiIsms5
found
0
word"velvet"
count1
1
word"flicked"
count1
2
word"weight"
count1
3
word"traced"
count1
4
word"quivered"
count1
highlights
0"velvet"
1"flicked"
2"weight"
3"traced"
4"quivered"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches2
maxInWindow1
found
0
label"eyes widened/narrowed"
count2
highlights
0"eyes narrowed"
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
filterCount2
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)
analyzedSentences257
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen58
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords2196
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions16
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions59
wordCount1632
uniqueNames8
maxNameDensity1.53
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Quinn"
discoveredNames
Tube1
Harlow1
Quinn25
Camden3
Veil1
Compass1
Voss21
One6
persons
0"Harlow"
1"Quinn"
2"Compass"
3"Voss"
places
0"One"
globalScore0.734
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences112
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords0.911
wordCount2196
matches
0"not toward the body, not toward the market stalls, but past the far end of the platform"
1"not toward the market stalls, but past the far end of the platform"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences257
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs115
mean19.1
std18.79
cv0.984
sampleLengths
053
112
237
364
473
53
664
710
84
912
109
1151
1210
1310
1462
1554
165
173
1820
198
2017
2141
227
233
2443
253
2636
2712
2839
295
301
314
3220
335
343
3517
3642
3712
3816
395
4035
4115
429
4361
4449
457
465
4748
482
4918
95.88% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences187
matches
0"been needed"
1"been levered"
2"been built"
3"been stabbed"
4"been dressed"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs239
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences257
ratio0
matches(empty)
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1636
adjectiveStacks1
stackExamples
0"spray-painted black circles"
adverbCount43
adverbRatio0.02628361858190709
lyAdverbCount3
lyAdverbRatio0.0018337408312958435
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences257
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences257
mean8.54
std7.39
cv0.864
sampleLengths
015
125
213
34
43
55
61
77
814
98
107
1112
129
1321
1415
157
168
175
188
1921
209
2111
2211
233
2419
2517
2616
2712
2810
294
3012
319
3212
3318
3421
356
364
377
383
394
4058
4113
4210
439
445
454
4613
475
483
493
44.55% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats14
diversityRatio0.2918287937743191
totalSentences257
uniqueOpeners75
20.70% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences161
matches
0"Just enough to smear."
ratio0.006
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount41
totalSentences161
matches
0"It lay on the tiles"
1"His head rested against the"
2"He had the look of"
3"He turned when Quinn stepped"
4"His eyes stared at the"
5"She pointed at the hand."
6"She leaned closer, enough to"
7"She reached for her evidence"
8"She slid them on and"
9"It came free with no"
10"She didn’t need the name"
11"She knew the craft."
12"She slipped the compass into"
13"He looked back at the"
14"She stepped closer and crouched"
15"She pointed to the toes"
16"She studied the station again."
17"She stepped to the edge"
18"She rubbed it between thumb"
19"Her eyes narrowed."
ratio0.255
62.48% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount128
totalSentences161
matches
0"The stairwell down to the"
1"Detective Harlow Quinn took the"
2"The call had come in"
3"Quinn passed a broken sign"
4"Someone had spray-painted black circles"
5"Someone else had scratched them"
6"The other kept glancing at"
7"Quinn took in the station"
8"A row of dead adverts"
9"A line of overturned market"
10"A stall with black velvet"
11"Another with glass vials scattered"
12"A smell of incense fought"
13"It lay on the tiles"
14"The dead man wore a"
15"His head rested against the"
16"Quinn stopped beside the tape"
17"A constable jerked his chin"
18"Voss wore a rain-dark coat"
19"He had the look of"
ratio0.795
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences161
matches(empty)
ratio0
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences66
technicalSentenceCount1
matches
0"He had the look of a man who kept his irritation in the same pocket as his notebook."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags8
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags5
fancyCount0
fancyTags(empty)
dialogueSentences78
tagDensity0.064
leniency0.128
rawRatio0
effectiveRatio0
89.0968%