Run: 2026-09-23-01M36NSCZ2168VPBQ7ZGBFXQPT

Run Details

Duration:
55.1s
Cost:
$0.001850
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
The station entrance was behind a boarded-up bakery and down a flight of steps that smelled of wet brick. Detective Harlow Quinn stopped at the foot of them, checked the worn leather watch on her left wrist, and listened. Above, Camden traffic growled through the street. Below, water ticked steadily from a pipe into a puddle. “Not much of a welcome,” said Mercer behind her. “It’s not meant to be.” Quinn took the bone token from her coat pocket. It was small enough to pass for a piece of knucklebone, though someone had carved a crooked eye into one end. The token felt cold against her palm. At the tunnel mouth, she held it up. A draft stirred the hair at her temples. Somewhere beyond the brick, a metal door unlatched. Mercer gave a low whistle. “Still don’t like that.” “You don’t have to like it.” She stepped through first. The abandoned Tube station opened around them in a long, tiled throat. Its name had been scraped off the walls; only the pale ghost of the letters remained. At the far end, market lanterns gleamed between the pillars. Stalls crowded the old platform, stacked with cloudy bottles, iron cages, bundles of dried herbs. A woman in a silver veil watched the detectives pass without stopping her conversation. Somewhere in the dark, a bell rang once. The Veil Market had been beneath Camden for months. It would move again at the next full moon. Quinn had learned that much from a source who had insisted on being paid in old teeth. Tonight the market had gone quiet around the crime scene. A man lay on his back beside the ticket kiosk, coat arranged neatly beneath him. His open eyes caught the lantern light. One dark hole marked the front of his shirt, just below the collarbone. A narrow knife, wrapped in clear evidence plastic, rested on a crate several feet away. Quinn crouched. She did not touch the body. “Name’s Silas Rook,” Mercer said. “Market broker. Three vendors heard an argument around nine. One says Rook threatened to expose someone. They heard a crash, then a door slam. No one saw a thing.” “Convenient.” “People here don’t like the police.” “People anywhere don’t like the police.” Mercer folded his arms. He was broad through the shoulders, his tie already loosened. “The knife’s got his blood on it. We have prints on the handle, probably his. There’s a trail from the east tunnel to the body. Our working theory is the killer came in that way, stabbed him, dropped the weapon, went back out. We haven’t cleared the tunnel yet.” Quinn glanced past him. The tunnel mouth was a black rectangle at the station’s eastern end. “And the blood?” “Drops start there. A few here, a few there. Gets heavier near the body. Rook walked in wounded, or the killer dragged him.” “Which?” “We’ll know when the path team finishes.” Quinn looked at the floor instead. Dust and old grit covered the tiles. The blood drops were dark, nearly black, and stood out cleanly against the gray. Between them lay footprints: a heavy tread, heel-to-toe, leading from the tunnel to the body. She followed them with her eyes. “How many?” “Three sets,” Mercer said. “We’ve marked one.” “No. How many footsteps?” He frowned. “Same thing.” “Not here.” The prints were evenly spaced. Each one pressed the same depth into the dust. No scuffs, no heel slips, no shift of weight around the blood. The tread pattern was crisp enough to show the little split at the back of the left heel. It repeated with such exactness that Quinn could have laid tracing paper over each print and found them identical. She moved closer without stepping into the scene. “Someone wore the boots in the prints,” Mercer said. “Someone made the prints.” He looked at her. Quinn pointed to the nearest. “There’s no drag of grit between steps. No disturbance where a foot lifted. And look at the dust inside the tread. It’s all the same color. If he walked through this much grime, he’d have picked up something—blood, damp, market ash. He didn’t walk. Somebody stamped these.” Mercer glanced along the trail. His jaw tightened. “Why?” “To make us look at the tunnel.” The body’s right hand lay open on the tiles. A brass compass had rolled against his wrist. Its casing was green with verdigris, and its face was etched with tiny marks Quinn couldn’t read. The needle trembled, though the station air was still. “Don’t touch that,” said Mercer. “I’m not.” A technician had already photographed it and set a scale beside it. Quinn shifted her stance. The needle swung toward the eastern tunnel. She took two steps left. The needle turned with her. Not north, then. She remembered a conversation with a frightened vendor, weeks ago: a compass that pointed to the nearest tear in the world. She’d dismissed the story as market superstition. She’d dismissed plenty of things, over the years. Some of them had cost people their lives. “Evidence bag it,” Mercer said. “Looks like a cheap prop.” Quinn watched the needle settle. It did not point toward the tunnel now. It aimed at a tiled wall behind the body. “Get the photos first,” she said. Mercer lowered his voice. “We’ve got a dead man, a knife, and a trail that leads to the only exit. The simplest answer is usually the right one.” “The simplest answer is the one someone wants you to stop looking at.” She turned to the body. Rook’s coat was damp at the shoulders. His hair, too, clung to his forehead, though the station air was dry. Blood had run from the wound across his shirt and into the fabric beneath him. Yet there was almost none on the tiles. A small pool had gathered near his ribs, no more than a saucer’s worth. Quinn leaned close enough to see the skin around his mouth. Blue-gray at the edges. His lips were parted. He wore a brass ring on his little finger, and a smear of pale dust marked the knuckle. “Time of death?” she asked. “Coroner says between eight and ten. Body’s still warm.” Quinn looked at the shirt front again, then at the coat. “Turn him.” Mercer’s expression hardened. “We don’t move the body until the coroner—” “Photograph first. Then turn him.” The technician glanced at Mercer. Mercer held Quinn’s gaze for a moment, then nodded once. They worked carefully. The coat lifted with the body. The fabric beneath Rook’s back was dry. When they rolled him onto his side, the front of his shirt showed a deep stain from the wound. His chest did not. Quinn saw Mercer notice it. “He was face-down.” “For a while,” she said. “The lividity’s set across his front. See the discoloration along the chest and cheek? He died somewhere else, face-down, and was moved here after.” “Then the killer dragged him through the tunnel.” “No drag marks. No blood trail from a dead man. And no reason to lay him out so carefully afterward.” Mercer stood, scanning the station. “They carried him.” “Through the market, past every stall, without a single witness seeing them?” The silver-veiled woman at the nearest stall had gone still. Her hands rested on the counter beside a row of green glass bottles. Quinn noticed a pale line around her right wrist, as if she had recently worn something tight. When Quinn met her gaze, the woman looked away. The compass needle shifted again. It pointed unwaveringly at the tiled wall. Quinn crossed to it. The tiles were intact, though a faint seam ran vertically between two of them. The dust at the baseboard had been swept into a shallow crescent. She crouched and examined the floor. More pale residue marked the grout—chalk, perhaps, or lime. It clung to the hem of Rook’s coat. Mercer came up behind her. “You think there’s a door.” “I think someone wants us to think there is.” “Then the footprints are a distraction, the compass is a distraction, and the body was moved through a hidden exit?” “Maybe.” She touched the tile with the back of a gloved finger. It felt no different from the others. “Or the footprints were made to point at the tunnel because the killer didn’t use the tunnel.” “That leaves us with an invisible passage.” “It leaves us with a dead man who was killed somewhere else and placed in a spot where his blood could be used to tell a story.” Quinn looked back at Rook’s hand. The pale dust on his knuckle matched the residue in the grout. Not chalk. Something finer, with a faint metallic glitter. She glanced at the compass. It pointed at the wall, but the needle had begun to quiver. “Why stage the body here?” Mercer asked. “So we’d believe he was killed in the station. So we’d follow the fake trail out. So we wouldn’t ask where he was actually killed.” “Where, then?” Quinn looked at the silver-veiled woman. The woman’s fingers had curled around the edge of her stall. “Somewhere in this market,” she said. The lanterns guttered in a draft that came from the sealed wall. For one breath, the tiles blurred, their edges bending inward as if seen through water. Then the wall was solid again. Mercer had seen it. His face had gone blank. Quinn felt the old pressure behind her ribs, the warning that had come too late for Morris three years ago. She kept her eyes on the seam in the tiles. “Lock down every stall,” she said. Mercer recovered first. “On what grounds?” Quinn stood. The compass needle steadied, still pointing at the wall. “On the grounds that somebody killed Rook, moved his body through a place that shouldn’t exist, and left us a trail that ends exactly where they wanted us to stop looking.” The silver-veiled woman backed away from her counter. Quinn drew her sidearm. “No one leaves.”
created_at"2026-09-23T08:23:19.788Z" 9/23/2026, 8:23:19 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5314
moderation_latency(null)
generation_time55080
tokens_prompt896
tokens_completion2948
native_tokens_prompt835
native_tokens_completion3533
native_tokens_completion_images0
native_tokens_reasoning1386
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.00185
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151799-ZC1htiHUHNTSk00FLNc8"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151799-imW2lNfsSNb6JwrFPrgH"
upstream_id"resp_03ddecc768102c0e016ab38c77ef2087d1a7250757fdce1e96"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_03ddecc768102c0e016ab38c77ef2087d1a7250757fdce1e96"
is_byokfalse
latency415
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.00185
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags11
adverbTagCount0
adverbTags(empty)
dialogueSentences59
tagDensity0.186
leniency0.373
rawRatio0
effectiveRatio0
94.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1668
totalAiIsmAdverbs2
found
0
adverb"carefully"
count2
highlights
0"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)
82.01% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1668
totalAiIsms6
found
0
word"footsteps"
count1
1
word"weight"
count1
2
word"tracing"
count1
3
word"etched"
count1
4
word"trembled"
count1
5
word"scanning"
count1
highlights
0"footsteps"
1"weight"
2"tracing"
3"etched"
4"trembled"
5"scanning"
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
narrationSentences134
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount0
narrationSentences134
filterMatches
0"watch"
1"notice"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences180
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen49
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1666
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions15
unquotedAttributions0
matches(empty)
47.32% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions53
wordCount1120
uniqueNames9
maxNameDensity2.05
worstName"Quinn"
maxWindowNameDensity3.5
worstWindowName"Quinn"
discoveredNames
Harlow1
Quinn23
Camden2
Mercer19
Tube1
Veil1
Market1
Rook4
Morris1
persons
0"Harlow"
1"Quinn"
2"Mercer"
3"Veil"
4"Market"
5"Rook"
6"Morris"
places(empty)
globalScore0.473
windowScore0.5
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences86
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1666
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount2
totalSentences180
matches
0"learned that much"
1"exactness that Quinn"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs91
mean18.31
std16.85
cv0.92
sampleLengths
039
117
29
35
445
516
69
76
84
975
1035
1110
1250
138
1434
151
166
176
1863
1919
2023
211
227
2342
248
257
264
274
282
2963
308
319
324
334
3452
359
367
3743
385
392
4023
4110
423
4344
4410
4522
466
4728
4813
495
92.17% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences134
matches
0"been scraped"
1"being paid"
2"was etched"
3"were parted"
4"been swept"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs186
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount1
semicolonCount1
flaggedSentences2
totalSentences180
ratio0.011
matches
0"Its name had been scraped off the walls; only the pale ghost of the letters remained."
1"More pale residue marked the grout—chalk, perhaps, or lime."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1128
adjectiveStacks0
stackExamples(empty)
adverbCount42
adverbRatio0.03723404255319149
lyAdverbCount10
lyAdverbRatio0.008865248226950355
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences180
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences180
mean9.26
std7.16
cv0.774
sampleLengths
019
120
27
310
49
55
69
721
87
98
108
118
125
134
146
154
1612
1716
1810
1915
2014
218
229
239
2417
2510
2615
277
2813
2915
302
316
325
3329
341
356
366
374
3810
3949
404
4112
423
4323
441
457
466
477
4814
4915
59.07% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats7
diversityRatio0.37777777777777777
totalSentences180
uniqueOpeners68
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount4
totalSentences119
matches
0"Somewhere beyond the brick, a"
1"Somewhere in the dark, a"
2"More pale residue marked the"
3"Then the wall was solid"
ratio0.034
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount35
totalSentences119
matches
0"It was small enough to"
1"She stepped through first."
2"Its name had been scraped"
3"It would move again at"
4"His open eyes caught the"
5"She did not touch the"
6"He was broad through the"
7"She followed them with her"
8"It repeated with such exactness"
9"She moved closer without stepping"
10"He looked at her."
11"His jaw tightened."
12"Its casing was green with"
13"She took two steps left."
14"She remembered a conversation with"
15"She’d dismissed the story as"
16"She’d dismissed plenty of things,"
17"It did not point toward"
18"It aimed at a tiled"
19"She turned to the body."
ratio0.294
35.63% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount101
totalSentences119
matches
0"The station entrance was behind"
1"Detective Harlow Quinn stopped at"
2"Quinn took the bone token"
3"It was small enough to"
4"The token felt cold against"
5"A draft stirred the hair"
6"Mercer gave a low whistle."
7"She stepped through first."
8"The abandoned Tube station opened"
9"Its name had been scraped"
10"Stalls crowded the old platform,"
11"A woman in a silver"
12"The Veil Market had been"
13"It would move again at"
14"Quinn had learned that much"
15"Tonight the market had gone"
16"A man lay on his"
17"His open eyes caught the"
18"A narrow knife, wrapped in"
19"She did not touch the"
ratio0.849
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences119
matches(empty)
ratio0
95.24% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences45
technicalSentenceCount3
matches
0"The station entrance was behind a boarded-up bakery and down a flight of steps that smelled of wet brick."
1"She remembered a conversation with a frightened vendor, weeks ago: a compass that pointed to the nearest tear in the world."
2"Quinn noticed a pale line around her right wrist, as if she had recently worn something tight."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags11
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags10
fancyCount0
fancyTags(empty)
dialogueSentences59
tagDensity0.169
leniency0.339
rawRatio0
effectiveRatio0
90.1818%