Run: 2026-09-23-01M36NKFX68HD9TMQ2KA8W4CQA

Run Details

Duration:
1m 16s
Cost:
$0.002635
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 bone token was warm in Quinn’s palm by the time she reached the platform. It had been cold at the entrance, a sliver of old bone with a hole drilled through one end. The uniform at the top of the stairs had looked at it, looked at Quinn, and stepped aside. Now the token held the heat of her hand, though the abandoned station breathed damp and chill around her. Beyond the temporary police cordon, the Veil Market crowded the platform in a maze of canvas awnings and low tables. Lanterns burned without smoke. A woman in a blue veil sold jars of something that shifted like oil. Somewhere farther down, a man struck a tuning fork against the rail, and the note went on too long. The market had moved beneath Camden with the full moon. Aboveground, the station was bricked up and forgotten. Down here, someone had been killed. “Detective.” DS Calder stood beside the body, gloved hands hooked in his belt. He had the careful, blank expression he wore when he believed he’d already solved something. Quinn stopped outside the chalk line and took in the scene. A man sat slumped against a tiled pillar. His coat was dark with damp at the shoulders. One hand lay open on the platform; the other rested in his lap, curled around a small brass compass. Blood spread in a neat black pool beneath him. A narrow knife protruded from his chest. The crowd watched from behind the cordon. Nobody looked frightened. In the Market, Quinn had learned, people saved fear for things that could reach them. “Name?” she asked. “Ilyan Sore. Information broker, by the look of his stall.” Calder nodded toward a shuttered booth across the platform. “One of the traders found him an hour ago. No one saw anything.” “No one saw anything,” Quinn repeated. Calder’s mouth twitched. “They’re not exactly keen on police.” Eva Kowalski stood just beyond him, her worn leather satchel held close against her hip. Her curls had escaped their pins, and she tucked a strand behind her left ear as Quinn approached. The round lenses of her glasses caught the lantern light. “You asked for me,” Eva said. “I asked for someone who knows what that thing is.” She glanced at the compass in the dead man’s hand. “It’s a Veil Compass.” Calder gave a short laugh. “A compass that points toward the Veil?” “Not the Veil,” Eva said. “The nearest supernatural rift or portal. It was made by a Shade artisan. The sigils on the face are protective.” “Handy,” Calder said. “A murder weapon that gives directions.” “It isn’t a weapon.” “Neither is a spoon. Doesn’t stop someone using it.” Quinn studied the body rather than either of them. Ilyan Sore looked to be in his fifties. His face had gone waxy, mouth slack, eyes shut. The blood had dried almost black where it edged the pool. His clothes were otherwise surprisingly clean. The knife sat at a steep angle. No defensive wounds showed on his hands. His left cuff was unbuttoned, the fabric folded back. A pale line circled his wrist. “Watch?” Quinn asked. Calder crouched beside the body. “Stolen, maybe. His stall was ransacked. We found the drawers open and half the stock gone.” “Who found him?” “Woman called Nessa Pell. Runs the booth next door. She says she heard nothing.” “Did she touch him?” “She says she checked for a pulse.” Quinn moved closer to the chalk line. “And this?” Calder followed her gaze. Someone had drawn a circle around Sore in white powder, broken by the body’s legs. Marks branched from it in short, angular strokes. It looked like a ritual sign, if you did not look too hard. “Market people reckon he opened a breach,” Calder said. “Then something came through and killed him. Compass points at the wall behind him.” Eva’s head tilted. “It may be pointing at a rift.” “May be,” Quinn said. “Or someone wants us to think so.” She stepped over the line. The station floor was filmed with dust except where boots had trampled it. The crowd’s footprints formed a ragged fan around the scene. The chalk marks had been drawn over several of them. Quinn looked again at the blood. “Where’s the spray?” Calder straightened. “There wasn’t much.” “From a wound in the chest?” “Knife went straight in. Maybe it hit the heart.” “Then there should be more blood on the shirt.” She crouched without touching anything. The black pool had spread beneath Sore’s right hip, but the shirt around the knife was only darkened in a small, tight ring. Blood had soaked the lining of his coat at the back. Not the front. “Maybe he bled out before he fell,” Calder said. “Then why is the blood under him?” He looked down. She could see the calculation begin, then stall. His attention shifted to the compass, to the wall, to the knife—the objects the scene had arranged for him. Quinn lifted her eyes to Eva. “How close does the compass need to be?” “It depends on the rift. Usually it’ll react within a few feet.” “Usually.” Eva tucked her hair behind her ear again. “The needle should settle toward the strongest point.” Quinn took a clean evidence marker from the kit and leaned over the compass. The case was brass, green with verdigris along its rim. Fine sigils had been etched around the face. The needle pointed toward the tiled wall behind Sore. “Could it be made to point somewhere else?” Quinn asked. “Not without damaging it.” “And does it move when you turn it?” “It should.” Eva hesitated. “Yes.” Quinn nudged the casing a quarter turn with the edge of the marker. The needle swung, shivered, and returned to its former direction. Calder folded his arms. “There you are.” Quinn moved the compass again, this time turning it almost all the way around. The needle found the same line through the tiles. “Rift behind the wall,” Eva said softly. “Or the compass is working,” Quinn said. “That doesn’t tell us how Sore died.” The back of her neck tightened. For a moment she was somewhere else: a service tunnel, three years earlier; Morris’s radio hissing; a dark shape where the map promised solid brick. Quinn shut the memory away. The facts in front of her were facts. Whatever had taken her partner, it had left a trail. She had only failed to read it in time. She focused on the body. The soles of Sore’s boots were clean. Not pristine, but clean enough to show their scuffed leather clearly. The platform around him was dust-coated, and the market crowd had churned it into gray mud. Yet the boots had no dust on the heels, no streaks from dragging, no grit caught in their seams. His coat was wet across the back, but the shoulder touching the tiled pillar was dry. The damp had soaked through from inside the lining, not from the wall. Someone had laid him down on a wet surface and then moved him. Quinn followed the faintest mark away from the body: two parallel lines in the dust, so light they disappeared where the crowd had crossed them. They ran toward the shuttered booth, then vanished beneath a spill of white powder. “Calder, don’t step there.” He froze. Quinn crouched and examined the tracks. A thin line of rust marked one groove. Near the wall, the dust held two small crescents where something heavy had turned. “Trolley,” she said. “Could be old,” Calder replied. “The rust isn’t. It’s on top of the dust.” She glanced at Sore’s body. “He was carried in on something with narrow wheels. The chalk was added afterward.” Eva bent beside her, careful not to cross the scene. “The circle is meant to look as if he was at the center of a summoning.” “Or to make us look at the circle instead of the tracks.” Quinn rose and walked to the back of the booth. Its canvas curtain hung straight, but the floor behind it was bare. She swept her torch across the lower wall. Old tiles, cracked grout, the soot-shadow of a long-removed bench. Nothing. Then she saw the clean rectangle. Dust covered every tile around it, thick enough to soften the pattern. One section, waist-high and two tiles wide, had been wiped clean. At its base, a rusted metal ring lay flat against the wall. The ring had scraped a shallow arc through the dust. “Does that wall lead anywhere?” she asked. Calder came up behind her. “Maps say the service tunnel was sealed in the seventies.” “Maps say the station is sealed.” She hooked two fingers through the ring and pulled. The tile panel shifted outward with a dry click. Behind it lay a narrow maintenance recess, black with age. A fresh streak of damp ran down the iron track. Something had rolled through recently. Eva leaned in, her expression gone pale. “That passage might connect to the lower service line. If there’s a rift in this station, it could—” “Not this one,” Quinn said. She pointed to the floor. The trolley tracks led to the panel. They did not lead back toward the body. Whoever had brought Sore here had come through the hidden passage, pushed the body into the open, and returned the trolley the way they had come. But the chalk circle, the compass, the knife—all of it was arranged to make the opposite story feel obvious. A man killed by a breach. A body delivered by the supernatural. No ordinary route, no ordinary killer. Quinn looked at the dry tiled wall the compass indicated. The needle still pointed there from the evidence marker’s position. “Someone wanted us to find the rift,” she said. “They wanted us staring at the wall.” Calder’s gaze followed hers to the open panel. “Then the person who killed him knew about the passage.” “And had time to move him through it.” Quinn nodded toward the blood pooled beneath Sore. “He didn’t die here. The blood was already on him when he was placed. The scene was dressed afterward.” Eva was watching the tracks, not the compass now. “The Market’s full of people who could know these tunnels.” “Then we start with the person who found him,” Quinn said. Calder glanced back toward the cordon. “Nessa Pell?” “She told you she heard nothing?” “That’s right.” Quinn looked down at the scraped ring, at the rust left on the rail, at the patch of damp on Sore’s coat. The passage behind the wall smelled faintly of wet stone—and something sharper beneath it. Machine oil. “Ask her what she was doing with a trolley tonight,” Quinn said. Calder’s expression changed. “We haven’t told anyone about the tracks.” “No,” Quinn said. “But she told you she found him and checked his pulse. So she was close enough to see the knife, the blood, and the compass. Did she tell you about the rift?” He hesitated. “She said she thought he’d come through one.” Quinn stared at him. “How did she know where the compass was pointing?” The market’s lanterns hissed in the damp air. Beyond the cordon, Nessa Pell stood beside her shuttered booth, watching them. Her hands were folded over a dark apron. Quinn noticed the pale grease on her right thumb. Then the matching crescent on the trolley rail. “Keep her there,” she said. “And nobody touches that booth.” Calder moved toward the cordon. Eva stayed beside Quinn, silent now, one hand tight on the strap of her satchel. Behind the wall, the old passage waited in darkness. The compass needle held steady toward the tiled seam, insisting on a mystery that had nothing to do with the body at their feet. For the first time since she had entered the station, Quinn knew which way to look.
created_at"2026-09-23T08:20:06.189Z" 9/23/2026, 8:20:06 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency25753
moderation_latency(null)
generation_time75781
tokens_prompt896
tokens_completion3146
native_tokens_prompt835
native_tokens_completion5103
native_tokens_completion_images0
native_tokens_reasoning2561
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"
usage0.002635
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151606-g8WEPHdpX8CFSAGYebLT"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151606-hMFCpfUVLkWSyvRlTwTt"
upstream_id"resp_0f7d2555521e0240016ab38bb648d487d197d00cfe6279f366"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_0f7d2555521e0240016ab38bb648d487d197d00cfe6279f366"
is_byokfalse
latency420
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.002635
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
totalTags25
adverbTagCount1
adverbTags
0"Eva said softly [softly]"
dialogueSentences78
tagDensity0.321
leniency0.641
rawRatio0.04
effectiveRatio0.026
97.48% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1982
totalAiIsmAdverbs1
found
0
adverb"softly"
count1
highlights
0"softly"
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)
84.86% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1982
totalAiIsms6
found
0
word"chill"
count1
1
word"pulse"
count2
2
word"etched"
count1
3
word"pristine"
count1
4
word"churned"
count1
highlights
0"chill"
1"pulse"
2"etched"
3"pristine"
4"churned"
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
narrationSentences160
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences160
filterMatches
0"feel"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences213
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen32
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1979
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions30
unquotedAttributions0
matches(empty)
16.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions78
wordCount1421
uniqueNames11
maxNameDensity2.25
worstName"Quinn"
maxWindowNameDensity4.5
worstWindowName"Quinn"
discoveredNames
Quinn32
Veil1
Market2
Camden1
Calder17
Kowalski1
Sore9
Eva12
Morris1
Nessa1
Pell1
persons
0"Quinn"
1"Veil"
2"Market"
3"Calder"
4"Kowalski"
5"Sore"
6"Eva"
7"Morris"
8"Pell"
places(empty)
globalScore0.374
windowScore0.167
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences112
glossingSentenceCount1
matches
0"looked like a ritual sign, if you did not"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.505
wordCount1979
matches
0"Not pristine, but clean enough to show their scuffed leather clearly"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences213
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs105
mean18.85
std15.28
cv0.811
sampleLengths
015
156
257
324
41
538
652
725
83
932
106
119
1243
136
1410
1514
1612
1725
189
194
209
2143
2229
233
2421
253
2614
274
287
299
3040
3123
3210
3311
3438
356
363
375
386
399
409
4142
429
437
4430
4514
4612
471
4816
4941
85.53% Passive voice overuse
Target: ≤2% passive sentences
passiveCount9
totalSentences160
matches
0"was bricked"
1"been killed"
2"was unbuttoned"
3"was filmed"
4"been drawn"
5"been etched"
6"been wiped"
7"was arranged"
8"were folded"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs245
matches
0"was watching"
75.79% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount3
flaggedSentences5
totalSentences213
ratio0.023
matches
0"One hand lay open on the platform; the other rested in his lap, curled around a small brass compass."
1"His attention shifted to the compass, to the wall, to the knife—the objects the scene had arranged for him."
2"For a moment she was somewhere else: a service tunnel, three years earlier; Morris’s radio hissing; a dark shape where the map promised solid brick."
3"But the chalk circle, the compass, the knife—all of it was arranged to make the opposite story feel obvious."
4"The passage behind the wall smelled faintly of wet stone—and something sharper beneath it."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1428
adjectiveStacks0
stackExamples(empty)
adverbCount42
adverbRatio0.029411764705882353
lyAdverbCount7
lyAdverbRatio0.004901960784313725
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences213
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences213
mean9.29
std5.39
cv0.58
sampleLengths
015
119
218
319
420
54
614
719
810
98
106
111
1212
1315
1411
158
169
1719
189
197
207
213
2215
233
2419
2513
266
273
286
2915
3018
3110
326
3310
3410
354
365
377
385
3920
403
416
424
439
449
458
469
4711
486
497
57.12% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.3568075117370892
totalSentences213
uniqueOpeners76
74.63% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences134
matches
0"Somewhere farther down, a man"
1"Then she saw the clean"
2"Then the matching crescent on"
ratio0.022
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount25
totalSentences134
matches
0"It had been cold at"
1"He had the careful, blank"
2"His coat was dark with"
3"Her curls had escaped their"
4"She glanced at the compass"
5"His face had gone waxy,"
6"His clothes were otherwise surprisingly"
7"His left cuff was unbuttoned,"
8"It looked like a ritual"
9"She stepped over the line."
10"She crouched without touching anything."
11"He looked down."
12"She could see the calculation"
13"His attention shifted to the"
14"She had only failed to"
15"She focused on the body."
16"His coat was wet across"
17"They ran toward the shuttered"
18"She glanced at Sore’s body"
19"Its canvas curtain hung straight,"
ratio0.187
57.01% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount108
totalSentences134
matches
0"The bone token was warm"
1"It had been cold at"
2"The uniform at the top"
3"Lanterns burned without smoke."
4"A woman in a blue"
5"The market had moved beneath"
6"Aboveground, the station was bricked"
7"DS Calder stood beside the"
8"He had the careful, blank"
9"Quinn stopped outside the chalk"
10"A man sat slumped against"
11"His coat was dark with"
12"Blood spread in a neat"
13"A narrow knife protruded from"
14"The crowd watched from behind"
15"Nobody looked frightened."
16"Calder nodded toward a shuttered"
17"Calder’s mouth twitched."
18"Eva Kowalski stood just beyond"
19"Her curls had escaped their"
ratio0.806
74.63% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences134
matches
0"Now the token held the"
1"Whoever had brought Sore here"
ratio0.015
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences62
technicalSentenceCount0
matches(empty)
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags25
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags21
fancyCount1
fancyTags
0"Quinn repeated (repeat)"
dialogueSentences78
tagDensity0.269
leniency0.538
rawRatio0.048
effectiveRatio0.026
90.7904%