Run: 2026-07-09-01KX410465M2PKSP5AP3WR32KV

Run Details

Duration:
55.1s
Cost:
$0.084930
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
The man came out of the Raven’s Nest at 11:47 p.m., glanced once at the rain, and ran. Harlow Quinn saw the decision happen in his face. One instant Tomás Herrera stood beneath the green neon raven with his collar turned up, a compact medical case in his right hand. The next his warm brown eyes found her across Wardour Street, and whatever calculation he made sent him hard into the crowd. Quinn was moving before the first taxi horn sounded. “Herrera!” He shouldered past two men sheltering under a pub awning. Quinn cut between them, boots striking wet pavement with military rhythm. Rain needled her scalp and slid cold beneath her collar. Herrera dodged around a knot of tourists, clipped a rubbish bin, recovered without losing the medical case. Fast. Younger by twelve years and not wearing half a police station’s worth of resentment in his knees. Quinn gained on him anyway. A bus rolled through the intersection, throwing a grey sheet across the pavement. Herrera vanished behind it. Quinn ran into the spray, one hand raised against the filthy water, and reached the crossing as the bus cleared. He was gone. She stopped beneath a flickering shop sign and listened past the rain, engines, laughter and the electronic chirp of a pedestrian signal. Her pulse hammered against the worn leather watch on her left wrist. Forty seconds since he had bolted. He had not crossed the main road. He had not doubled back. A metal door banged in the alley to her right. Quinn drew her baton and went in. The alley squeezed between a restaurant kitchen and a building wrapped in scaffolding. Grease shone in the gutters. High above, rain rattled on tarpaulin. Herrera’s dark coat flashed at the far end. “Police!” she shouted. “Stop!” He looked back. Short, wet curls clung to his forehead. A silver chain had worked free of his shirt, and the Saint Christopher medallion at his throat caught a slash of yellow security light. Then he kicked through a gate. Quinn followed, slamming her shoulder into the wet iron before it could rebound. She emerged onto Brewer Street in time to see him wrench open the passenger door of a black cab halted in traffic. No. Driver’s side. Herrera leaned inside. The cabbie recoiled, hands rising. Herrera said something, sharp and urgent, then threw a wad of notes across the dashboard and pulled the door shut. The cab jerked forward. Quinn sprinted alongside it and struck the rear window with her baton. Herrera twisted in his seat. For one breath their eyes locked through rain-streaked glass. He did not look guilty. He looked terrified. The cab mounted the kerb, scraped past a delivery van and shot north. Quinn memorised the plate, dragged out her phone and called it in while running toward her unmarked car. “Control, Quinn. Suspect mobile in black cab, registration Lima Charlie—” Static swallowed the next syllable. She stopped. Checked the screen. No service. In central Soho. The phone’s compass spun in a slow, useless circle. Behind her, above the entrance to the Raven’s Nest, green neon hummed in the rain. The stylised bird seemed to turn its head as the tubes flickered. Quinn shoved the phone into her coat. Three weeks watching Herrera. Former paramedic. Licence revoked after a disciplinary hearing so heavily redacted it might as well have been a confession. He bought hospital-grade sutures with cash, visited assault victims who never reported their injuries, and met twice a month inside a Soho bar whose hidden back room had not appeared on any building plan since 1928. Tonight he had left carrying a case. Tonight, for the first time, he had run. And in Quinn’s inside pocket lay a photograph recovered from DS Morris’s flat after his death: Morris outside the Raven’s Nest, three years younger, Herrera blurred in the background beneath that same green sign. She reached her car. The radio worked where the phone had not. Automatic number-plate cameras caught the cab turning onto Charing Cross Road, then Tottenham Court Road. Northbound. Quinn pulled into traffic with the blue light hidden behind her grille flashing, no siren. The wet streets opened reluctantly. Headlamps stretched in long white wounds across the tarmac. At Mornington Crescent, control lost the cab. Not slowed. Not turned off. Lost. Quinn continued toward Camden. The rain thickened, drowning the windscreen faster than the wipers could clear it. She passed shuttered shops, kebab counters glaring white at empty pavements, terraces whose dark windows reflected her lights. Camden at midnight still had a pulse, but tonight the storm had driven it underground. A few figures hurried under umbrellas. Water foamed against the kerbs. She found the cab abandoned beside a boarded entrance to an old Tube station. The driver sat behind the wheel. Quinn parked across his nose and approached from the rear, baton low. The cab’s engine was running. Its wipers beat back and forth. The driver stared straight ahead, both hands fixed at ten and two. She tapped the glass. He screamed. His whole body convulsed. He struck the horn and held it, filling the street with a flat mechanical blare. “Police.” Quinn displayed her warrant card. “Open the door.” He fumbled twice before finding the lock. When Quinn pulled it open, a sour smell rolled out. “He put something in here,” the driver said. His pupils were huge. “Who?” “The Spanish bloke. He put something in here.” Herrera’s wet notes lay scattered over the dashboard. Among them sat a pinch of grey powder. Quinn did not touch it. “Where did he go?” The driver pointed toward the station entrance. “Down.” Metal sheets covered the old doors. Council warnings declared the site unsafe. A chain looped through the handles, secured with a heavy padlock. The chain had not been cut. It lay open on the pavement like a shed snakeskin. Quinn looked back at the driver. “Stay in the vehicle. Ambulance is coming.” “Don’t go down there.” “What did he say to you?” The man turned his swollen pupils toward her. Rain drummed on the cab roof. “He said they’d started bidding.” Quinn took her torch from her belt and entered the station. The smell changed at once. Wet concrete. Rust. Old electricity. The city became a muffled weight above her. Herrera had left prints in the dust, damp ovals descending the broad tiled stairwell. Quinn followed. Her beam swept over cracked cream tiles and faded posters half-stripped from the walls. A woman in a 1960s dress smiled from beneath a beard of mould. Somewhere below, water dripped with maddening regularity. Her radio hissed. “Control, Quinn. Entering the disused Camden station after suspect. Request armed response and transport officers to—” A voice whispered through the static. Not control. “Harlow.” She stopped halfway down the steps. The name came again, stretched thin by interference. “Harlow, don’t.” Her hand tightened around the radio. Morris had always clipped the first syllable of her name when he was afraid. Not “Har-low,” the way everyone else said it. “H’low.” Barely a breath. This voice did the same. Quinn switched the radio off. For three years, she had kept the final recording from Morris’s body camera on a private drive. Four minutes of darkness. His breathing. A scrape like nails along stone. Then Morris saying her name and firing six rounds at something no camera could see. The official inquiry called it a fatal disorientation episode. The body had never been recovered. At the foot of the stairs, Herrera’s footprints ended before a tiled wall. Quinn crouched. No return prints. No door. Her torch found a crude bird scratched into one tile, wings spread around a circular depression. A token lay in the drain beneath it. She picked it up with gloved fingers. Bone, yellowed with age, cut into a disc no larger than a ten-pence piece. One side bore the same bird. The other held a symbol like an eye stitched shut. Evidence, she thought. Bait, corrected the part of her that had survived eighteen years in the Met. Herrera had dropped it. Accidentally or not, it fit the depression. Quinn stood alone beneath London, listening to water count the seconds. Procedure said hold the scene. Wait for backup. Herrera was a flight risk, not an immediate threat. She did not know the structure. She did not know whether the air was safe. She did not know why a dead man’s voice had come through her radio. Procedure had also signed off on Morris’s death with no body, no explanation and thirty-two missing minutes from the evidence log. She pressed the bone token into the wall. The tile bit her. Quinn jerked back. A bright bead of blood welled through a slit in her glove and soaked into the token. Deep inside the wall, something unlocked with a sound like a long exhalation. A seam appeared. The tiled section swung inward. Beyond it, a second staircase plunged through red darkness. Noise rose from below: voices, hundreds of them, layered over bells, the clink of glass and the low, restless murmur of trade. The air smelled of hot metal, incense, animal musk and something medicinally sweet. Quinn drew her telescopic baton. After a second’s thought, she drew her service pistol as well. She descended. The tunnel opened without warning onto a disused platform transformed beyond recognition. Stalls crowded the tracks under patched awnings. Gas lamps burned blue and violet. Bare bulbs floated overhead with no wires, drifting in currents Quinn could not feel. Buyers moved shoulder to shoulder between tables piled with stoppered bottles, cages, black flowers and objects wrapped in oilcloth. Some wore evening clothes. Some wore robes. Some hid their faces behind porcelain masks. One tall figure had antlers. Quinn blinked. The antlers remained. A woman behind the nearest stall sliced open a pomegranate. Tiny teeth gleamed among the seeds. Quinn lowered the pistol beside her leg, concealing it against her coat. Every instinct told her to turn around. Every year of training told her she had entered an environment she could neither control nor explain. Her skin prickled under the weight of glances. Conversations dimmed around her and resumed in whispers. At the stair’s base stood a narrow booth fashioned from old railway sleepers. A man inside extended a six-fingered hand. “Token.” Quinn showed him the bloodied disc. He sniffed it. His eyes were covered by a strip of black silk, but his head tracked her perfectly. “Not yours,” he said. “I found it.” “That is often how doors find people.” “I’m looking for a man.” “Everyone is.” “Tomás Herrera.” At the name, the six-fingered hand withdrew. The booth keeper leaned back. “Then you are late.” Quinn stepped closer. “Where is he?” A bell rang deeper in the market. The crowd shifted toward an archway at the far end of the platform. Above it, old Underground lettering showed through soot: NORTHBOUND. Two masked attendants pushed open iron gates. Herrera appeared between them. His coat was gone. Blood streaked his olive left forearm, tracing the pale line of an older knife scar. The medical case remained handcuffed to his right wrist. He struggled once, hard, but the attendants held him. “Lot seventy-three,” a voice announced beyond the arch. “A physician’s hand, once disgraced. Saint-bound. Human.” Herrera’s head snapped up. He saw Quinn. Shock crossed his face, followed by fury. “What are you doing?” he shouted. The market stilled. Quinn brought up her pistol. Herrera lunged against his captors. “Don’t let them see you bleed!” The booth keeper seized Quinn’s injured hand. His grip was cold and impossibly strong. All across the platform, heads turned toward the scent of her blood. The thing with antlers smiled. Quinn drove her baton into the booth keeper’s wrist. Bone cracked. His grip loosened, and she tore free as the first gas lamp went out. Then the second. Darkness raced toward her along the platform. Herrera shouted her name. And from somewhere inside that advancing blackness, Morris answered.
created_at"2026-07-09T18:07:20.27Z" 7/9/2026, 6:07:20 PM
model"openai/gpt-5.6-sol-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3285
moderation_latency(null)
generation_time54965
tokens_prompt914
tokens_completion3305
native_tokens_prompt810
native_tokens_completion2696
native_tokens_completion_images0
native_tokens_reasoning104
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"
usage0.08493
router(null)
provider_responses
0
endpoint_id"a54c5de0-89bf-4ad7-a212-cf977eed918a"
id"resp_0c67d6d8a6522a2f016a4fe35855388196a10664eec4105058"
is_byokfalse
latency237
model_permaslug"openai/gpt-5.6-sol-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620440-7rPGjQP4m1xNDBDTd4Mb"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620440-RaR7WAfgKOTdng0oUeUI"
upstream_id"resp_0c67d6d8a6522a2f016a4fe35855388196a10664eec4105058"
total_cost0.08493
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags6
adverbTagCount0
adverbTags(empty)
dialogueSentences33
tagDensity0.182
leniency0.364
rawRatio0
effectiveRatio0
94.99% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1998
totalAiIsmAdverbs2
found
0
adverb"reluctantly"
count1
1
adverb"perfectly"
count1
highlights
0"reluctantly"
1"perfectly"
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)
72.47% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1998
totalAiIsms11
found
0
word"pulse"
count2
1
word"flickered"
count1
2
word"mechanical"
count1
3
word"weight"
count2
4
word"structure"
count1
5
word"porcelain"
count1
6
word"silk"
count1
7
word"tracing"
count1
8
word"raced"
count1
highlights
0"pulse"
1"flickered"
2"mechanical"
3"weight"
4"structure"
5"porcelain"
6"silk"
7"tracing"
8"raced"
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
emotionTells2
narrationSentences226
matches
0"looked terrified"
1"was afraid"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences226
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences251
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen37
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1998
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions10
unquotedAttributions1
matches
0"And from somewhere inside that advancing blackness, Morris answered."
59.14% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions91
wordCount1871
uniqueNames25
maxNameDensity1.82
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Quinn"
discoveredNames
Raven3
Nest3
Quinn34
Tomás1
Herrera18
Wardour1
Street2
Saint1
Christopher1
Brewer1
Soho2
Morris7
Charing1
Cross1
Road2
Tottenham1
Court1
Mornington1
Crescent1
Camden2
Tube1
Met1
London1
Underground1
One3
persons
0"Quinn"
1"Tomás"
2"Herrera"
3"Saint"
4"Christopher"
5"Morris"
6"Underground"
places
0"Wardour"
1"Street"
2"Brewer"
3"Soho"
4"Charing"
5"Cross"
6"Road"
7"Tottenham"
8"Court"
9"Mornington"
10"Crescent"
11"Camden"
12"Met"
13"London"
14"One"
globalScore0.591
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences141
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.501
wordCount1998
matches
0"neither control nor"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences251
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs142
mean14.07
std14.39
cv1.023
sampleLengths
018
19
245
39
41
548
618
75
837
93
1052
1110
127
1332
144
1534
166
1735
183
1928
204
2126
225
233
2431
2510
265
275
282
293
3036
317
3259
3315
3434
354
3653
377
386
394
4057
4114
426
4335
444
452
4619
479
4817
498
99.05% Passive voice overuse
Target: ≤2% passive sentences
passiveCount4
totalSentences226
matches
0"was gone"
1"been recovered"
2"were covered"
3"was gone"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs331
matches
0"was running"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences251
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1879
adjectiveStacks0
stackExamples(empty)
adverbCount40
adverbRatio0.021287919105907396
lyAdverbCount7
lyAdverbRatio0.0037253858435337944
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences251
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences251
mean7.96
std5.62
cv0.707
sampleLengths
018
19
223
322
49
51
610
711
810
917
101
1117
125
1313
144
1520
163
1722
1812
196
207
215
2210
237
2413
255
266
278
283
291
303
317
3224
336
3413
3522
361
372
383
395
4020
414
4212
435
449
455
463
4713
4818
4910
56.71% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats11
diversityRatio0.3665338645418327
totalSentences251
uniqueOpeners92
99.01% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount6
totalSentences202
matches
0"Then he kicked through a"
1"Somewhere below, water dripped with"
2"Barely a breath"
3"Then Morris saying her name"
4"Accidentally or not, it fit"
5"Then the second."
ratio0.03
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount39
totalSentences202
matches
0"He shouldered past two men"
1"He was gone."
2"She stopped beneath a flickering"
3"Her pulse hammered against the"
4"He had not crossed the"
5"He had not doubled back."
6"He looked back."
7"She emerged onto Brewer Street"
8"He did not look guilty."
9"He looked terrified."
10"He bought hospital-grade sutures with"
11"She reached her car."
12"She passed shuttered shops, kebab"
13"She found the cab abandoned"
14"Its wipers beat back and"
15"She tapped the glass."
16"His whole body convulsed."
17"He struck the horn and"
18"He fumbled twice before finding"
19"His pupils were huge."
ratio0.193
66.44% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount159
totalSentences202
matches
0"The man came out of"
1"Harlow Quinn saw the decision"
2"The next his warm brown"
3"Quinn was moving before the"
4"He shouldered past two men"
5"Quinn cut between them, boots"
6"Rain needled her scalp and"
7"Herrera dodged around a knot"
8"Quinn gained on him anyway."
9"A bus rolled through the"
10"Herrera vanished behind it."
11"Quinn ran into the spray,"
12"He was gone."
13"She stopped beneath a flickering"
14"Her pulse hammered against the"
15"He had not crossed the"
16"He had not doubled back."
17"A metal door banged in"
18"Quinn drew her baton and"
19"The alley squeezed between a"
ratio0.787
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences202
matches(empty)
ratio0
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences71
technicalSentenceCount0
matches(empty)
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags6
uselessAdditionCount0
matches(empty)
59.09% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags5
fancyCount3
fancyTags
0"she shouted (shout)"
1"a voice announced (announce)"
2"he shouted (shout)"
dialogueSentences33
tagDensity0.152
leniency0.303
rawRatio0.6
effectiveRatio0.182
90.2301%