Run: 2026-09-23-01M36P37DNJDHBV63NB69KTD47

Run Details

Duration:
31.4s
Cost:
$0.001282
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="4417" name="Tomás Herrera" aliases="Tommy, Tomás, Herrera" pronouns="he/him" species="Human" storyRole="Support"> <eyeColor>warm brown</eyeColor> <hair>short curly dark brown</hair> <height>5'10"</height> <age>29</age> <skinTone>olive skin</skinTone> <scar>scar running along his left forearm from a knife attack</scar> <medallion>Saint Christopher medallion around his neck</medallion> <birthplace>Seville, Spain</birthplace> <description>A former paramedic who provides off-the-books medical care for the clique.</description> <backstory>Born in Seville, Spain. He moved to London to work for the NHS but lost his license after administering unauthorized treatments to supernatural patients.</backstory> </character> <location id="854" name="The Raven's Nest" aliases="the Nest, Raven, Silas' bar" realm="Earth"> <signColor>distinctive green neon sign above the entrance</signColor> <secretRoom>hidden back room accessible through a bookshelf, used for clandestine meetings</secretRoom> <description>A dimly lit bar in Soho, London. The walls are covered with old maps and black-and-white photographs.</description> </location> <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> </codex> Write a fully fleshed out scene of at least 1000 words in the thriller genre. A detective is pursuing a suspect through rain-soaked city streets at night. The chase takes them from the street level down into an underground market. The detective must decide whether to follow the suspect into unfamiliar and potentially dangerous territory. 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
Rain hammered the pavement hard enough to turn the streetlamps to halos. Quinn ran through the light and out the other side, shoes skidding on the slick stones. The man ahead of her had a narrow lead and knew the streets better. He cut between two black cabs, vaulted a low bollard, and vanished into the mouth of an alley. “Police!” Quinn shouted, though the rain swallowed the word. She didn’t slow. Her left wrist struck the brick as she took the corner. The leather watch scraped; pain flashed bright and brief. Ahead, the alley dipped toward a service road, its gutters choked with leaves and cigarette ends. The suspect’s coat flapped behind him, dark and wet. He moved with a hitch in his right leg, the same hitch Quinn had seen on the grainy camera footage from the warehouse. He had taken something from the evidence locker. Not the whole package—just one small glass vial, missing from a sealed tray after a clerk left his station to answer the phone. The cameras had caught a hood, a pale hand, a flash of a scar at the wrist. Quinn had spent two nights tracing the buyer through a chain of dead ends, and now the man was running from her in Soho. That was something. He burst from the alley onto a narrow street lined with shuttered shops. The neon above a bar glowed green through the rain: THE RAVEN’S NEST. Quinn registered the old maps and black-and-white photographs in the front windows, then the man’s shoulder as he slammed through the door. She was three seconds behind. The bar was dim, warm, and quiet in the way a room got quiet when strangers entered with urgency. A few heads turned. The barman stopped polishing a glass. On the walls, framed photographs showed London streets in different decades, their corners faded. Old maps overlapped between them like patches on a worn coat. The suspect was already across the room. He kicked open a door behind the bar and plunged into the back passage. Quinn pulled her warrant card from her coat and held it up. “Metropolitan Police. Nobody move.” The barman’s expression barely changed. His eyes tracked her, then the passage. Quinn went after the suspect. The back passage stank of damp plaster and bleach. At its end stood a tall bookcase, crowded with leather-bound volumes and hardbacks swollen by age. The suspect had shoved one shelf aside. It swung inward on hidden hinges, revealing a narrow stairwell descending into darkness. He was halfway down. Quinn reached the opening in time to see his face turn upward. Rainwater shone on his cheeks. He looked past her, not at her, and for a moment she saw fear there—raw, unguarded fear. Then he dropped out of sight. The door in the bookshelf started to swing shut. Quinn caught it with one hand. Cold air rose from below, carrying a smell of wet stone, metal, and something sharp as burnt herbs. Beneath it came a murmur of voices. Not loud. Not quite voices, either; more like a crowd speaking through several closed doors at once. She drew her pistol. The rational choice was to hold the passage and call for backup. She had no idea where the stairwell led, whether the suspect had accomplices, or how much of the building’s layout was concealed behind that false bookcase. The bar could be a front. The barman could be involved. For all she knew, the whole place was part of the operation. Quinn looked back toward the bar. No one had moved. The barman had set the glass down. His face was unreadable, but his right hand had disappeared below the counter. Quinn felt the old tightening under her ribs—the moment before a bad room became a worse one. Three years ago, Morris had gone through a door like this one. A door no one else remembered seeing. They had found his coat two days later, stiff with river mud, and no trace of the man who’d worn it. She had never forgiven herself for letting him go in first. Quinn thumbed her radio. “Control, Quinn. Pursuit on foot. Suspect has entered a concealed stairwell at—” Static spat from the speaker. She tried again. “Control, do you copy?” The radio answered with a thin, wavering hiss. Then a single burst of sound—not words, but what might have been a bell tolling far underground. The stairwell door pressed against her hand, as if something below had breathed. Quinn glanced at her watch. The second hand moved. The world was still obeying its rules, for now. She stepped through. The staircase was stone, narrow enough that her shoulders nearly brushed both walls. A strip of bare bulbs ran overhead, but several had burned out, leaving islands of light. The suspect’s footfalls echoed below, uneven and quick. Quinn descended with her pistol held close, muzzle down so she wouldn’t shoot through the first dark shape that turned toward her. The air grew colder. The rain’s drumming vanished behind her, replaced by a steady underground thrum. At the bottom, the stairs opened into a tiled passage with faded signs along the walls. CAMDEN TOWN, one said, its letters crossed out by grime. An abandoned Tube station. Quinn stopped. A crowd filled the platform beyond the passage. People moved between stalls built from trestle tables and old luggage carts. Lanterns hung from cables. Their light flickered blue, yellow, and a deep red that made every face look bruised. Glass bottles crowded the tables beside bowls of powders, coiled wires, carved bones, and metal objects that seemed to shift when she looked directly at them. The voices she had heard from above belonged to dozens of traders and customers, all speaking too softly. A hand-painted sign over the platform read VEIL MARKET. The suspect shouldered through the crowd, limping hard now. People parted for him, then closed again behind him like water. Quinn came out into the open with her badge raised. “Police. Clear the way.” No one cleared it. A woman behind a stall examined Quinn’s face as if pricing it. A little man in a silver mask smiled without showing his teeth. Somewhere nearby, something tapped against glass from the inside of a jar. Quinn kept her pistol low. The rules for a crowded public place still applied, though the place itself seemed to be denying that it existed. “Suspect,” she called. “Stop where you are.” He looked back. His eyes found hers. Then he shoved a customer aside and ran for a tunnel at the far end of the platform. The crowd shifted. A stallholder swung a tray of narrow glass vials into Quinn’s path. She sidestepped it, caught the edge of a table, and felt a jar roll under her palm. Inside, something pale and finger-shaped curled away from her touch. “Don’t,” the stallholder said. “Then move.” She pushed past. The stallholder spat a word in a language Quinn didn’t recognize. Her teeth ached, suddenly and fiercely. She kept moving. At the tunnel entrance, the suspect vanished around a bend. Quinn reached the spot and found the way barred by a chain of bone tokens strung across the passage. They knocked together in the stale air. Each was carved with a different mark: a circle cut in half, a three-pronged fork, a small open eye. Beyond them, the tunnel sloped down into darkness. A man in a long grey coat stepped into her path. His eyes were clouded white. A bone token hung on a cord around his neck. “No token, no passage,” he said. “I’m pursuing a suspect.” “Everyone here is pursuing something.” Quinn raised her badge nearer his face. “You want to make this an obstruction charge?” He smiled. “You want to make this your jurisdiction?” Behind him, the crowd continued its slow circulation. No one looked surprised. No one looked afraid. That was worse than panic. Panic at least admitted danger. Quinn glanced down the tunnel. The suspect’s limping footfalls had stopped. A second later came a metallic scrape, then a sharp exhale. He was still there. Or someone was. Quinn’s pulse beat hard against her throat. She could retreat, return to the bar, and bring a team. If she could get the radio to work. If this place stayed where it was. The station had appeared under Camden, but the market moved every full moon. She had no idea whether this was the right night, or whether the stairs would even lead back to the same street. She thought of Morris again: his shoulder disappearing through a door, his voice crackling once over the radio, then nothing. Not again, she told herself. Not blind. Not alone. But there was no one behind her. Just the market and its watching faces. Quinn holstered her pistol long enough to pull a small evidence bag from her pocket. Inside sat the dull brass token she had taken from the suspect’s flat. It had been wedged behind a loose floorboard with a receipt from a shop that didn’t appear in any city directory. On the front, a circle had been cut in half. The grey-coated man’s smile faded. Quinn lifted the bag. “This get me through?” He studied the token through the plastic. “Barely.” “Good.” She pulled the token free. It was cold enough to sting. Its weight sat wrong in her palm, as though it belonged to something larger and had been broken away. She slipped it onto the corded chain. The bone tokens chimed. The grey-coated man stepped aside. Quinn drew her pistol again and crossed the threshold. The tunnel swallowed the market’s voices almost at once. Her light found wet tiles, old pipes, a strip of red paint along the floor. The air tasted of pennies. Ahead, around the bend, the suspect coughed. Quinn moved quietly now. She passed a narrow side door, then another, each marked with symbols instead of letters. At the third, her radio crackled. “Quinn,” a voice said. She froze. It was Morris’s voice. Older, roughened by static, but unmistakable. “Quinn, don’t come down here.” Her grip tightened until the pistol’s checkering bit into her palm. The radio gave a click. Then silence. She stared at the dark speaker. Her mouth had gone dry. The sound had come from the radio, but she had heard no signal after the first stairwell. No one could know that name here. No one could know the way he had said it—quiet and irritated, like she was already being unreasonable. A foot scraped around the bend. The suspect was moving again. Quinn lowered the radio. She set her jaw and followed the sound, careful not to let the tunnel choose her pace. At the bend, the red-painted line ended at a door made of black iron. It stood open by a hand’s width. Beyond it, a pale light pulsed in time with the thud of her heart. The suspect’s shadow stretched across the gap. Quinn stopped just short of the door. She could wait. Call for backup again. Find another way around, if there was one. She could go back through the market and bring help into a place that might not exist when she returned. Then the suspect gave a strangled cry. Quinn pushed the iron door open with the muzzle of her pistol. The hinge groaned. Something on the other side turned toward the sound. She stepped through anyway.
created_at"2026-09-23T08:28:41.787Z" 9/23/2026, 8:28:41 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2399
moderation_latency(null)
generation_time31409
tokens_prompt888
tokens_completion2832
native_tokens_prompt810
native_tokens_completion2402
native_tokens_completion_images0
native_tokens_reasoning0
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"
usage0.001282
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790152121-yuMe3gcohaiZoKgp2Af4"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790152121-LdoHLgAHjTeGEWWUvUmk"
upstream_id"resp_0260987d53736d47016ab38db9df8487d1966a3493210fb862"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_0260987d53736d47016ab38db9df8487d1966a3493210fb862"
is_byokfalse
latency1033
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.001282
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
totalTags5
adverbTagCount0
adverbTags(empty)
dialogueSentences19
tagDensity0.263
leniency0.526
rawRatio0
effectiveRatio0
94.77% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1912
totalAiIsmAdverbs2
found
0
adverb"softly"
count1
1
adverb"suddenly"
count1
highlights
0"softly"
1"suddenly"
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)
76.46% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1912
totalAiIsms9
found
0
word"tracing"
count1
1
word"unreadable"
count1
2
word"wavering"
count1
3
word"echoed"
count1
4
word"flickered"
count1
5
word"pulse"
count1
6
word"weight"
count1
7
word"silence"
count1
8
word"pulsed"
count1
highlights
0"tracing"
1"unreadable"
2"wavering"
3"echoed"
4"flickered"
5"pulse"
6"weight"
7"silence"
8"pulsed"
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
emotionTells3
narrationSentences194
matches
0"d with urgency"
1"looked surprised"
2"looked afraid"
98.67% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount3
hedgeCount3
narrationSentences194
filterMatches
0"watch"
1"look"
hedgeMatches
0"started to"
1"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences208
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen26
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1907
ratio0
matches(empty)
83.33% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions6
unquotedAttributions1
matches
0"Not again, she told herself."
65.49% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions38
wordCount1834
uniqueNames6
maxNameDensity1.69
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Quinn"
discoveredNames
Quinn31
Soho1
London1
Morris3
Tube1
Camden1
persons
0"Quinn"
1"Morris"
places
0"Soho"
1"London"
globalScore0.655
windowScore0.667
92.75% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences131
glossingSentenceCount3
matches
0"Not quite voices, either; more like a crowd speaking through several closed doors at once"
1"as if pricing it"
2"appeared under Camden, but the market moved every full moon"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.524
wordCount1907
matches
0"not words, but what might have been a bell tolling far underground"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount2
totalSentences208
matches
0"denying that it"
1"know that name"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs92
mean20.73
std20.33
cv0.981
sampleLengths
012
148
29
371
472
53
648
75
854
97
1014
1116
1212
135
1445
154
1640
179
186
1942
204
2161
226
2324
2457
2511
2616
275
287
2925
3013
3118
323
3359
3446
352
3683
379
3820
3914
404
4136
4225
437
4425
4542
464
472
4823
4910
96.22% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences194
matches
0"was concealed"
1"was carved"
2"were clouded"
3"been wedged"
4"been broken"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs303
matches
0"was running"
1"was still obeying"
2"was already being"
46.70% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount5
semicolonCount2
flaggedSentences7
totalSentences208
ratio0.034
matches
0"The leather watch scraped; pain flashed bright and brief."
1"Not the whole package—just one small glass vial, missing from a sealed tray after a clerk left his station to answer the phone."
2"He looked past her, not at her, and for a moment she saw fear there—raw, unguarded fear."
3"Not quite voices, either; more like a crowd speaking through several closed doors at once."
4"Quinn felt the old tightening under her ribs—the moment before a bad room became a worse one."
5"Then a single burst of sound—not words, but what might have been a bell tolling far underground."
6"No one could know the way he had said it—quiet and irritated, like she was already being unreasonable."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1848
adjectiveStacks0
stackExamples(empty)
adverbCount63
adverbRatio0.03409090909090909
lyAdverbCount7
lyAdverbRatio0.003787878787878788
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences208
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences208
mean9.17
std5.67
cv0.618
sampleLengths
012
116
214
318
49
53
611
79
816
99
1023
118
1223
1317
1424
153
1613
1713
1822
195
2019
214
226
2314
2411
257
2614
2712
284
295
307
315
329
3316
347
3513
364
3712
385
3917
406
419
426
4318
447
452
4615
474
4812
4926
43.75% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats13
diversityRatio0.27403846153846156
totalSentences208
uniqueOpeners57
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount6
totalSentences185
matches
0"Then he dropped out of"
1"Then a single burst of"
2"Somewhere nearby, something tapped against"
3"Then he shoved a customer"
4"Just the market and its"
5"Then the suspect gave a"
ratio0.032
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount49
totalSentences185
matches
0"He cut between two black"
1"She didn’t slow."
2"Her left wrist struck the"
3"He moved with a hitch"
4"He had taken something from"
5"He burst from the alley"
6"She was three seconds behind."
7"He kicked open a door"
8"His eyes tracked her, then"
9"It swung inward on hidden"
10"He was halfway down."
11"He looked past her, not"
12"She drew her pistol."
13"She had no idea where"
14"His face was unreadable, but"
15"They had found his coat"
16"She had never forgiven herself"
17"She tried again."
18"She stepped through."
19"Their light flickered blue, yellow,"
ratio0.265
78.92% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount141
totalSentences185
matches
0"Quinn ran through the light"
1"The man ahead of her"
2"He cut between two black"
3"Quinn shouted, though the rain"
4"She didn’t slow."
5"Her left wrist struck the"
6"The leather watch scraped; pain"
7"The suspect’s coat flapped behind"
8"He moved with a hitch"
9"He had taken something from"
10"The cameras had caught a"
11"Quinn had spent two nights"
12"That was something."
13"He burst from the alley"
14"The neon above a bar"
15"Quinn registered the old maps"
16"She was three seconds behind."
17"The bar was dim, warm,"
18"The barman stopped polishing a"
19"The suspect was already across"
ratio0.762
54.05% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences185
matches
0"If she could get the"
1"If this place stayed where"
ratio0.011
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences81
technicalSentenceCount4
matches
0"They had found his coat two days later, stiff with river mud, and no trace of the man who’d worn it."
1"The stairwell door pressed against her hand, as if something below had breathed."
2"She thought of Morris again: his shoulder disappearing through a door, his voice crackling once over the radio, then nothing."
3"It had been wedged behind a loose floorboard with a receipt from a shop that didn’t appear in any city directory."
25.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags5
uselessAdditionCount1
matches
0"Quinn shouted, though the rain swallowed the word"
97.37% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags5
fancyCount1
fancyTags
0"Quinn shouted (shout)"
dialogueSentences19
tagDensity0.263
leniency0.526
rawRatio0.2
effectiveRatio0.105
88.4497%