Run: 2026-07-08-01KX1KMSTTKRZ0HD6CV0ZR8494

Run Details

Duration:
3m 24s
Cost:
$0.023002
Provider:
xAI

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 rain came down in hard, slanted sheets that turned every street to black glass. Detective Harlow Quinn cut through it with the same measured stride she had carried through eighteen years of Metropolitan Police work, boots striking the pavement in a steady, military cadence that matched the thudding of her heart. Water streamed from the short salted tips of her hair and ran cold beneath her collar. The worn leather strap of her watch pressed against the inside of her left wrist each time her arm swung forward. One-seventeen a.m. She did not need the luminous dial to know the night was thinning into something leaner and more dangerous. Ahead of her, no more than thirty metres and losing ground slower than he should have for a man half her age, Tomás Herrera vaulted a low iron railing and dropped into the pedestrian underpass that snaked beneath Camden High Street. His olive skin gleamed under the flickering fluorescent tubes. Rain had plastered his short curly hair flat against his skull. The Saint Christopher medallion around his neck swung free for a second, silver flashing like a struck coin, before he stuffed it beneath his soaked shirt. Quinn saw the long pale scar ringing his left forearm when he braced himself against the tiled wall and shoved off again. She cleared the railing one-handed, never breaking stride. The underpass smelled of wet concrete and stale urine. Her brown eyes stayed locked on the bobbing shape of his shoulders. “Police! Freeze!” Her voice cracked against the tiles and came back three times smaller. He did not freeze. He never did. Herrera exploded out the far end of the underpass and into the open rain again, cutting left toward the canal. Quinn followed, shoulder clipping a wheeled suitcase abandoned by some sleepy tourist. Pain flared, bright and useful. She filed it away and kept going. Neon from the all-night kebab shop bled pink and green across the pavement; every reflection fractured under her boots. A delivery van honked and swerved. She ignored it. Herrera slipped between two parked cars and vaulted a chain-link fence that bordered a construction pit. The landing jostled something free from his jacket pocket. A small white object skittered across wet tarmac and vanished into a storm drain before Quinn could identify it. Bone, she thought, though she could not have said why the word arrived so cleanly. The rain thickened, narrowing the world to the ten metres of asphalt between them. Quinn’s lungs burned clean. She had lost partners and sleep and any remaining innocence about what moved under London after dark, but she had not lost her wind. Three years since DS Morris vanished into an alley much like this one and never walked out. The unexplained circumstances still sat under her ribs like a second heartbeat. Herds of wild theories had grown from that silence, and every one of them circled men like Tomás Herrera who came and went from places with soft edges and harder secrets. He cut right again, down a service lane that ran between shuttered shopfronts. The lane dead-ended against an iron grille half-rusted open. Beyond it yawed the black mouth of a disused Tube stairwell, its tiles scabbed with decades of grime and <!-- something darker. Herrera did not hesitate. He yanked the grille wider, slipped inside, and was gone into the wet dark. Quinn slammed into the iron bars half a breath later. The grille screeched and held. Rain hammered the metal above her head. She tasted copper and old fear. The stairwell exhaled a cold breath smelling of damp earth, ozone, and something sweet like spilled perfume left too long on skin. Somewhere below, a generator coughed to life and then settled into a low mechanical growl. Voices—not quite human, or perhaps only human after a long conversation with something else—drifted up the stone steps. She should call it in. Protocol was clear. Backup. Containment. Wait for the cavalry. The radio mic clipped to her coat felt heavy with the knowledge that Control would send a van full of uniforms who had never stood over an unexplained body and smelled the aftertaste of magic they refused to name. They would stamp around, frighten the rats, and declare the place empty. Herrera would be gone. Whatever bone token had parted those iron bars for him would go with him, and tomorrow the whole underground market would pack its tents and relocate under a different full moon, just as the whispers claimed it always did. Her fingers found the cold rungs of the grille. The leather of her watchband creaked when she tightened her grip. Military precision told her to catalogue every risk: unknown terrain, multiple hostiles, possible weapons both ordinary and otherwise, no line of sight, no exit strategy once the dark sealed behind her. The same precision also made her catalogue the alternative: letting a man she suspected of fencing enchanted goods and worse simply disappear into the folds of the city that had already swallowed her partner. She thought of Morris’s empty desk three years empty. Of the way the official record still pretended he had simply walked off duty and vanished into ordinary night. Of the way her own superiors had looked at her when she refused to sign that fiction. Quinn swung the grille wide enough for her shoulders and stepped through. The stairwell dropped steep which. Water cascaded down the walls in thin black sheets. Her boots found worn edges of steps that might once have led office workers to the Northern Line and now led only deeper. The generator’s growl grew louder. Blue emergency lighting studded the walls at irregular intervals, casting her shadow long and fractured. She counted heartbeats instead of metres. Twenty or so, then the stairs opened onto a tiled concourse that had not felt a scheduled train in thirty years. Canvas stalls and iron cages filled the abandoned platforms. Lanterns of greenish flame hung from the dead overhead lines, throwing light the colour of old bruises. The air was thick with incense and chemicals that made the inner corners of her eyes itch. People—or things wearing people-shapes—moved between the stalls with the easy confidence of those who belonged in the dark. One stall offered glass jars of lightless liquid that shifted and stirred when she glanced at them too long. Another sold knives whose blades smoked faintly, the steel engraved with glyphs that written themselves into new patterns when the lanternlight hit them just so. A vendor with too many joints in his fingers held up a string of human teeth filed into points; the nearest shopper laughed, the laugh not quite pitched right for a human throat. Herrera was already halfway down the left-hand platform, speaking low and rapid to a woman whose skin had the faint pearlescent sheen of something that had spent too long under water. He passed something across—another of those pale tokens—and received a small brass key in return. The woman nodded toward a black doorway set into the far bulkhead, a doorway Quinn was certain had not existed a moment earlier. She kept to the deeper shadow along the wall. The rain soaked coat was heavy now, but she welcomed the weight; it kept her movements silent. Her right hand hovered near the internally carried service weapon, though every instinct screamed that ordinary nine-millimetre rounds might be little better than costed metal confetti down here. The scar on Herrera’s forearm glowed pale under the green lanterns as he flexed his hand. The Saint Christopher medallion winked once as he turned toward the new door. Quinn’s pulse settled into the familiar cold rhythm that came just before a door breached into the unknown. She could still reverse course, climb those stairs, and pretend the next train would not arrive at five and deliver nothing but ordinary sleepwalkers. Or she could step forward into the market that should not exist, follow the man who sold pieces of it, and find out what the bone tokens opened when no one with a badge was watching. She drew a slow breath that smelled of rain and ozone and something older. Then she left the wall and walked into the green light after him.
created_at"2026-07-08T19:35:28.868Z" 7/8/2026, 7:35:28 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency120559
moderation_latency(null)
generation_time192999
tokens_prompt914
tokens_completion2694
native_tokens_prompt1016
native_tokens_completion3527
native_tokens_completion_images(null)
native_tokens_reasoning1899
native_tokens_cached128
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"
usage0.023002
router(null)
provider_responses
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endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
is_byokfalse
latency161
model_permaslug"x-ai/grok-4.5-20260708"
provider_name"xAI"
status(null)
1
endpoint_id"78a73286-52c4-4d1d-9d13-c1870c25b143"
id"698148bc-8ed3-966a-a055-3186dc50a815"
is_byokfalse
latency101
model_permaslug"x-ai/grok-4.5-20260708"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783539328-kh69l9cp3ZseMN0Gc0de"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783539328-gp5REkrDJ0Mmdi8UGci8"
upstream_id"698148bc-8ed3-966a-a055-3186dc50a815"
total_cost0.023002
cache_discount0.000192
upstream_inference_cost0
provider_name"xAI"
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
totalTags1
adverbTagCount0
adverbTags(empty)
dialogueSentences1
tagDensity1
leniency1
rawRatio0
effectiveRatio0
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1381
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)
71.04% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1381
totalAiIsms8
found
0
word"measured"
count1
1
word"fractured"
count2
2
word"silence"
count1
3
word"mechanical"
count1
4
word"weight"
count1
5
word"pulse"
count1
6
word"familiar"
count1
highlights
0"measured"
1"fractured"
2"silence"
3"mechanical"
4"weight"
5"pulse"
6"familiar"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"air was thick with"
count1
highlights
0"The air was thick with"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences90
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences90
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences90
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen41
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1376
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions0
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions36
wordCount1374
uniqueNames17
maxNameDensity0.66
worstName"Quinn"
maxWindowNameDensity1.5
worstWindowName"Quinn"
discoveredNames
Harlow1
Quinn9
Metropolitan1
Police1
Tomás2
Herrera8
Camden1
High1
Street1
Saint2
Christopher2
London1
Morris2
Tube1
Control1
Northern1
Line1
persons
0"Harlow"
1"Quinn"
2"Police"
3"Tomás"
4"Herrera"
5"Saint"
6"Christopher"
7"Morris"
8"Control"
places
0"Camden"
1"High"
2"Street"
3"London"
4"Northern"
globalScore1
windowScore1
82.43% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences74
glossingSentenceCount2
matches
0"not quite human, or perhaps only human after a long conversation with something else—drifted up the stone steps"
1"not quite pitched right for a human throat"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1376
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences90
matches
0"sign that fiction"
75.23% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs17
mean80.94
std33.45
cv0.413
sampleLengths
0110
1109
250
3131
4102
562
683
7108
885
945
1012
1184
12138
1369
1483
1578
1627
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences90
matches
0"was gone"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs229
matches
0"was thinning"
1"was watching"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount6
semicolonCount3
flaggedSentences7
totalSentences90
ratio0.078
matches
0"Neon from the all-night kebab shop bled pink and green across the pavement; every reflection fractured under her boots."
1"Beyond it yawed the black mouth of a disused Tube stairwell, its tiles scabbed with decades of grime and <!-- something darker."
2"Voices—not quite human, or perhaps only human after a long conversation with something else—drifted up the stone steps."
3"People—or things wearing people-shapes—moved between the stalls with the easy confidence of those who belonged in the dark."
4"A vendor with too many joints in his fingers held up a string of human teeth filed into points; the nearest shopper laughed, the laugh not quite pitched right for a human throat."
5"He passed something across—another of those pale tokens—and received a small brass key in return."
6"The rain soaked coat was heavy now, but she welcomed the weight; it kept her movements silent."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1389
adjectiveStacks0
stackExamples(empty)
adverbCount45
adverbRatio0.032397408207343416
lyAdverbCount8
lyAdverbRatio0.005759539236861051
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences90
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences90
mean15.29
std9.55
cv0.625
sampleLengths
015
137
216
321
42
519
641
79
811
926
1022
118
129
1312
1414
154
163
1720
1812
195
207
2119
226
233
2416
259
2619
2715
2814
294
3024
3117
3212
3331
3413
359
3622
374
3814
3910
405
417
426
4322
4415
4518
465
473
481
491
67.04% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats3
diversityRatio0.4222222222222222
totalSentences90
uniqueOpeners38
76.63% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences87
matches
0"Somewhere below, a generator coughed"
1"Then she left the wall"
ratio0.023
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount24
totalSentences87
matches
0"She did not need the"
1"His olive skin gleamed under"
2"She cleared the railing one-handed,"
3"Her brown eyes stayed locked"
4"Her voice cracked against the"
5"He did not freeze."
6"He never did."
7"She filed it away and"
8"She ignored it."
9"She had lost partners and"
10"He cut right again, down"
11"He yanked the grille wider,"
12"She tasted copper and old"
13"She should call it in."
14"They would stamp around, frighten"
15"Her fingers found the cold"
16"She thought of Morris’s empty"
17"Her boots found worn edges"
18"She counted heartbeats instead of"
19"He passed something across—another of"
ratio0.276
40.46% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount73
totalSentences87
matches
0"The rain came down in"
1"Detective Harlow Quinn cut through"
2"Water streamed from the short"
3"The worn leather strap of"
4"She did not need the"
5"His olive skin gleamed under"
6"Rain had plastered his short"
7"The Saint Christopher medallion around"
8"Quinn saw the long pale"
9"She cleared the railing one-handed,"
10"The underpass smelled of wet"
11"Her brown eyes stayed locked"
12"Her voice cracked against the"
13"He did not freeze."
14"He never did."
15"Herrera exploded out the far"
16"Quinn followed, shoulder clipping a"
17"Pain flared, bright and useful."
18"She filed it away and"
19"Neon from the all-night kebab"
ratio0.839
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences87
matches(empty)
ratio0
70.22% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences59
technicalSentenceCount6
matches
0"Detective Harlow Quinn cut through it with the same measured stride she had carried through eighteen years of Metropolitan Police work, boots striking the pavem…"
1"Ahead of her, no more than thirty metres and losing ground slower than he should have for a man half her age, Tomás Herrera vaulted a low iron railing and dropp…"
2"Herrera slipped between two parked cars and vaulted a chain-link fence that bordered a construction pit."
3"The radio mic clipped to her coat felt heavy with the knowledge that Control would send a van full of uniforms who had never stood over an unexplained body and …"
4"The same precision also made her catalogue the alternative: letting a man she suspected of fencing enchanted goods and worse simply disappear into the folds of …"
5"Herrera was already halfway down the left-hand platform, speaking low and rapid to a woman whose skin had the faint pearlescent sheen of something that had spen…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags1
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags0
86.1013%