Run: 2026-07-09-01KX41AQT69SZQ5BC44ZNNQ1EQ

Run Details

Duration:
16.5s
Cost:
$0.015834
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 turned Soho into a smear of black glass and sodium light. Detective Harlow Quinn ran through it with her coat open and one hand pressed against the radio at her shoulder. Water streamed from her closely cropped salt-and-pepper hair into her eyes. Her boots struck the pavement in hard, measured impacts, military precision trying to impose order on a city that had none. Ahead, the suspect cut between two taxis and vanished beneath the green neon sign of the Raven’s Nest. Quinn swore and accelerated. A cab horn blared behind her. Someone shouted. The wet street shone with reflected lamps, red buses, and the trembling green raven above the bar entrance. She crossed without looking, shouldering through a knot of tourists beneath a striped awning. One of them grabbed at her coat. She tore free. “Metropolitan Police!” she shouted, though the rain swallowed most of it. The man ahead glanced back. He wore a dark wool coat and no hat. Quinn saw a pale, narrow face, a slash of cheekbone, and eyes that caught the green neon with an oily brightness. He had been watching the Raven’s Nest from across the street for eleven minutes. He had taken an envelope from a woman in a silver veil. Then, when Quinn stepped out of the unmarked car, he had run. Not the first suspect she had chased through London. Not even the strangest. But he had left no footprints. Quinn hit the Raven’s door as it swung inward and entered a wall of heat, smoke, and low music. Old maps covered the walls between black-and-white photographs of dead Soho streets. Glassware glittered behind the bar. Conversations faltered as every face turned toward her. The suspect was already halfway across the room. “Stop!” He shoved a chair into a woman’s knees. She cried out. The man vaulted the bar, scattering bottles. A bartender ducked. Quinn pulled her warrant card from her pocket and flashed it at him as if the rectangle of plastic could stop anything. He grinned. Then he disappeared behind a bookshelf at the far end of the room. Quinn reached the shelves a second later. The books were dusty spines and false histories: atlases, railway guides, bound newspapers from years before the war. She ran her fingers along the edges. Nothing. Behind her, the bar erupted. “Out of the way.” She shoved through the crowd. A broad-shouldered man in a black shirt stood behind the counter, his expression carved from stone. Silas, if the reports were right. Owner of the Raven’s Nest. Occasional fence. Frequent liar. He had the kind of stillness Quinn distrusted in anyone, and especially in a man who ran a bar where three known criminals had disappeared from police surveillance in the past year. “Where did he go?” she demanded. Silas wiped rainwater from the bar with a folded cloth. “Who?” Quinn’s jaw tightened. She turned back to the bookshelf. A young man with olive skin and short, curly dark hair stood beside it, holding a glass of water in one hand. He wore a Saint Christopher medallion at his throat. His gaze tracked the empty space beside the books, then flicked to Quinn. Tomás Herrera. Former paramedic. License revoked after unauthorized treatment of patients whose injuries, according to the official report, were “medically inexplicable.” Quinn had found his name in three case files connected to the same clique she had been investigating for six months. He knew something. “Move,” she said. Tomás did not. His left forearm showed beneath a rolled sleeve. A scar ran along it, pale and jagged, like someone had tried to open him from wrist to elbow. “Detective,” he said. “Where is he?” “You’re in a private establishment.” “He ran behind this shelf.” “That happens.” Quinn leaned close enough to smell rain, cheap coffee, and the sharp medicinal tang clinging to his clothes. “I can arrest you for obstruction.” Tomás’s warm brown eyes remained steady. “Then do it.” Behind him, the bookshelf gave a faint click. Quinn saw his expression change—not fear, exactly. Calculation. She seized the nearest book and yanked. The shelf swung inward with a groan, revealing a narrow passage lit by a single amber bulb. The crowd went quiet. Silas said, “That room is not open to the public.” Quinn drew her service pistol. “Then stay out of my way.” She stepped through. The passage smelled of damp stone and candle wax. The bookshelf swung shut behind her, cutting off the bar’s noise. Quinn’s breathing sounded too loud in the cramped corridor. Ahead, the suspect’s shoes slapped over old boards. She ran. The passage ended at a steep iron staircase descending into darkness. Quinn slowed at the first step. Below, water dripped steadily. Something moved in the black, quick and light, then stopped. The suspect’s voice floated upward. “You should go back, Detective.” Quinn angled her weapon toward the sound. “Come up with your hands where I can see them.” A laugh echoed through the stairwell. It sounded wrong—too deep, too close, as if someone had whispered directly into her ear. Quinn descended. The staircase shuddered beneath her weight. The air grew colder with every step. At the bottom, she found a brick tunnel running beneath the city. Pipes crossed the ceiling. Rainwater ran in narrow channels along the floor. The suspect stood at the far end beside a rusted service door. He held a small object in his hand. A bone token. Quinn knew it from photographs in a confiscated notebook: a thin disc carved from something that had once been part of a human skeleton, marked with a symbol like an eye split down the middle. The Veil Market. A hidden black market that moved through London on every full moon. Enchanted goods, banned alchemical substances, information bought and sold beyond the reach of ordinary law. The market was supposed to be beneath Camden tonight. Quinn had spent two months trying to prove it existed. The suspect pressed the token against the door. The metal rippled. Quinn fired. The shot cracked through the tunnel. The suspect jerked sideways. The bullet struck the door, throwing off a burst of blue sparks. He slipped through the opening as it peeled apart like wet paper. Quinn reached the threshold and stopped. Beyond lay an abandoned Tube platform, vast and dim beneath a vaulted ceiling. The old station signs had been torn away, leaving pale rectangles on soot-black tile. Lanterns burned along the platform in colors that had no business existing—violet, green, a cold white that seemed to cast shadows upward. People moved among stalls. Not people, all of them. A woman with silver scales along her throat haggled over a jar of black fluid. A man whose face was hidden behind a veil of moth wings displayed knives that whispered to one another in their wooden case. A child-sized figure in a velvet coat offered teeth on a velvet cushion. The Veil Market breathed beneath Camden. The suspect glanced back from the edge of the crowd. A dark stain spread across his sleeve where the bullet had grazed him. He smiled, then disappeared between two stalls. Quinn remained in the doorway, pistol raised. Her radio hissed against her shoulder. “Detective Quinn, report.” The control room sounded distant, normal, painfully human. “We have a unit approaching the Raven’s Nest. Do you require assistance?” She stared into the market. No uniformed officer could follow her here. No ordinary warrant would mean anything. The people below did not look at the police as authority. They looked at her as meat that had wandered into a butcher’s shop. Behind her, Tomás emerged from the tunnel. He had followed her after all. His face had gone pale, but his hand rested over the Saint Christopher medallion. “You need to leave,” he said. Quinn kept her eyes on the crowd. “You know this place.” “I know enough to be afraid of it.” “Who is he?” “Not a man you can arrest.” “I shot him.” “You grazed him.” “Same principle.” Tomás came to stand beside her, careful not to cross the threshold. “The Market is protected. It moves every full moon. Tonight it’s here. If they decide you don’t belong, the door won’t open again.” Quinn’s left wrist ached beneath the leather strap of her watch. She looked down. The second hand had stopped. For one instant, she was back in the alley three years earlier, standing over DS Morris’s abandoned coat while the rain ran red into the gutter. Morris had vanished between one breath and the next. No body. No blood trail. No explanation. The case had been buried beneath paperwork and quiet warnings. But Quinn remembered the sound that came afterward. A door closing where there had been no door. The same cold pressure now filled her ears. “Detective,” Tomás said, more urgently. “This is not a police operation anymore.” She could turn back. She could return to the bar, call for units, lock down the street, and build a case from the outside. She could pretend the impossible was only an illusion produced by exhaustion, rain, and too many months spent chasing a clique that knew how to make people disappear. Or she could follow the man who might know what happened to Morris. The suspect had reached the far end of the platform. He paused beneath a dead station clock and looked back at her. For a moment, his face changed. It became older. Hollow-cheeked. Wet with rain that could not be falling underground. Morris’s face. Quinn’s hand tightened around the pistol. The image vanished. The suspect slipped through a curtain of red beads and was gone. “Damn it,” Quinn whispered. Tomás caught her sleeve. “Don’t.” She looked at his hand, then at him. “If you’re going to stop me, you’ll need more than a warning.” “I’m trying to keep you alive.” “Then tell me what’s through that curtain.” “People who buy and sell things that should never be owned.” “Information?” “Sometimes.” “Then he’s carrying something I need.” Tomás studied her face. “What?” “The truth.” The words came out flatter than she expected. The truth about Morris. About the unexplained gaps in the case files. About why every witness connected to the clique eventually recanted, vanished, or died in ways London’s records described as unfortunate coincidence. Tomás released her sleeve. “Stay close to the lights,” he said. “Don’t touch anything. Don’t accept food, drink, gifts, or promises. If anyone asks your name, give them a false one.” Quinn stepped across the threshold. The market’s noise struck her at once: chattering voices, clinking glass, the wet hiss of things alive in tanks. The air tasted of iron and burned sugar. A vendor with antlers curling from his temples leaned toward her. “Detective,” he murmured. Quinn kept walking. The lights flickered behind her. The doorway narrowed. Tomás swore and hurried after her. Quinn reached the red curtain just as the last strip of the tunnel folded shut. Stone replaced the opening. No door. No seam. Only a blank wall filmed with condensation. The radio on her shoulder crackled. “Quinn? Detective Quinn, respond.” She lifted it, but before she could answer, another voice spoke through the static. Morris. “Harlow,” it whispered. “Don’t let them find the bone.”
created_at"2026-07-09T18:13:08.044Z" 7/9/2026, 6:13:08 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1902
moderation_latency(null)
generation_time16238
tokens_prompt914
tokens_completion3231
native_tokens_prompt810
native_tokens_completion2504
native_tokens_completion_images0
native_tokens_reasoning96
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"
usage0.015834
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_05e4c884fd2247cd016a4fe4b4250c8196891aaeb1e12c2d85"
is_byokfalse
latency273
model_permaslug"openai/gpt-5.6-luna-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620788-4uJpgosCOWTNWCrptt1r"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620788-QFgVKeI5ELduEC3Z2Ddl"
upstream_id"resp_05e4c884fd2247cd016a4fe4b4250c8196891aaeb1e12c2d85"
total_cost0.015834
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
totalTags14
adverbTagCount0
adverbTags(empty)
dialogueSentences48
tagDensity0.292
leniency0.583
rawRatio0
effectiveRatio0
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1878
totalAiIsmAdverbs0
found(empty)
highlights(empty)
100.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found(empty)
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
78.70% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1878
totalAiIsms8
found
0
word"measured"
count1
1
word"impose"
count1
2
word"flicked"
count1
3
word"echoed"
count1
4
word"weight"
count1
5
word"velvet"
count2
6
word"flickered"
count1
highlights
0"measured"
1"impose"
2"flicked"
3"echoed"
4"weight"
5"velvet"
6"flickered"
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
narrationSentences190
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount3
narrationSentences190
filterMatches
0"watch"
hedgeMatches
0"tried to"
1"seemed to"
2"happened to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences224
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen38
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1875
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions16
unquotedAttributions0
matches(empty)
50.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions75
wordCount1640
uniqueNames16
maxNameDensity1.89
worstName"Quinn"
maxWindowNameDensity3.5
worstWindowName"Quinn"
discoveredNames
Soho2
Harlow1
Quinn31
Raven4
Nest3
London3
Silas3
Saint2
Christopher2
Herrera1
Tomás10
Veil2
Market2
Camden2
Tube1
Morris6
persons
0"Harlow"
1"Quinn"
2"Raven"
3"Silas"
4"Saint"
5"Christopher"
6"Herrera"
7"Tomás"
8"Morris"
places
0"Soho"
1"London"
globalScore0.555
windowScore0.5
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences121
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1875
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences224
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs130
mean14.42
std15.64
cv1.085
sampleLengths
012
152
218
34
450
511
65
768
813
96
1044
118
121
1343
142
1513
1633
175
189
1963
206
2111
229
2344
242
2540
263
273
283
2927
303
313
325
335
342
3524
369
378
388
3924
404
4110
425
436
443
4537
462
4711
486
4914
96.03% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences190
matches
0"was supposed"
1"been torn"
2"was hidden"
3"been buried"
4"was gone"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs280
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount0
flaggedSentences3
totalSentences224
ratio0.013
matches
0"Quinn saw his expression change—not fear, exactly."
1"It sounded wrong—too deep, too close, as if someone had whispered directly into her ear."
2"Lanterns burned along the platform in colors that had no business existing—violet, green, a cold white that seemed to cast shadows upward."
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1651
adjectiveStacks1
stackExamples
0"short, curly dark hair"
adverbCount38
adverbRatio0.02301635372501514
lyAdverbCount12
lyAdverbRatio0.0072683222289521504
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences224
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences224
mean8.37
std6.31
cv0.754
sampleLengths
012
120
211
321
418
54
66
72
818
914
107
113
1211
135
149
1521
1614
1712
1812
199
204
216
2219
2312
245
258
268
271
288
293
307
313
3222
332
3413
357
3618
377
381
395
409
4116
426
435
442
452
4632
476
4810
491
41.82% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats23
diversityRatio0.3125
totalSentences224
uniqueOpeners70
61.35% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences163
matches
0"Then, when Quinn stepped out"
1"Then he disappeared behind a"
2"Only a blank wall filmed"
ratio0.018
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount36
totalSentences163
matches
0"Her boots struck the pavement"
1"She crossed without looking, shouldering"
2"She tore free."
3"she shouted, though the rain"
4"He wore a dark wool"
5"He had been watching the"
6"He had taken an envelope"
7"He shoved a chair into"
8"She cried out."
9"She ran her fingers along"
10"She shoved through the crowd"
11"He had the kind of"
12"She turned back to the"
13"He wore a Saint Christopher"
14"His gaze tracked the empty"
15"He knew something."
16"His left forearm showed beneath"
17"She seized the nearest book"
18"She stepped through."
19"It sounded wrong—too deep, too"
ratio0.221
48.96% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount134
totalSentences163
matches
0"Detective Harlow Quinn ran through"
1"Water streamed from her closely"
2"Her boots struck the pavement"
3"Quinn swore and accelerated."
4"A cab horn blared behind"
5"The wet street shone with"
6"She crossed without looking, shouldering"
7"She tore free."
8"she shouted, though the rain"
9"The man ahead glanced back."
10"He wore a dark wool"
11"Quinn saw a pale, narrow"
12"He had been watching the"
13"He had taken an envelope"
14"Quinn hit the Raven’s door"
15"Glassware glittered behind the bar."
16"Conversations faltered as every face"
17"The suspect was already halfway"
18"He shoved a chair into"
19"She cried out."
ratio0.822
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences163
matches(empty)
ratio0
62.21% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences62
technicalSentenceCount7
matches
0"Her boots struck the pavement in hard, measured impacts, military precision trying to impose order on a city that had none."
1"Quinn pulled her warrant card from her pocket and flashed it at him as if the rectangle of plastic could stop anything."
2"He had the kind of stillness Quinn distrusted in anyone, and especially in a man who ran a bar where three known criminals had disappeared from police surveilla…"
3"It sounded wrong—too deep, too close, as if someone had whispered directly into her ear."
4"Quinn knew it from photographs in a confiscated notebook: a thin disc carved from something that had once been part of a human skeleton, marked with a symbol li…"
5"A man whose face was hidden behind a veil of moth wings displayed knives that whispered to one another in their wooden case."
6"She could pretend the impossible was only an illusion produced by exhaustion, rain, and too many months spent chasing a clique that knew how to make people disa…"
89.29% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags14
uselessAdditionCount1
matches
0"she shouted, though the rain swallowed most of it"
45.83% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags11
fancyCount5
fancyTags
0"she shouted (shout)"
1"she demanded (demand)"
2"Quinn whispered (whisper)"
3"he murmured (murmur)"
4"it whispered (whisper)"
dialogueSentences48
tagDensity0.229
leniency0.458
rawRatio0.455
effectiveRatio0.208
85.6061%