Run: 2026-10-07-01M4AV6YR3AC5BM7XR3X6B5TXJ

Run Details

Duration:
2m 15s
Cost:
$0.010442
Provider:
Mistral

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 didn't fall in Soho so much as it assaulted, coming down in sheets that turned the cobblestones into mirrors of fractured neon. Detective Harlow Quinn stood beneath the green sign of The Raven's Nest, her salt-and-pepper hair plastered flat against her skull, water streaming down the sharp planes of her jaw and into the collar of her trench coat. She was five-foot-nine of military precision, forty-one years old and still carrying the bearing of eighteen years on the Metropolitan Police. On her left wrist, the leather band of her watch had darkened to near-black, the ticking mechanism a metronome against the storm. Inside, the bar smelled of stale beer and old parchment, the walls crowded with black-and-white photographs and yellowed maps that seemed to watch the patrons with blind, milky eyes. Quinn had been nursing a whiskey in the back room for three hours, the hidden space behind the bookshelf, waiting. She had known the clique would meet here. They always did. The side door opened. Tomás Herrera emerged into the alley like a man who knew he was already dead. His olive skin gleamed under the streetlamps, dark curly hair slicked to his forehead, rain immediately beading on his sharp cheekbones. At his throat, the silver Saint Christopher medallion caught the light—a talisman that wouldn't save him now. On his left forearm, the puckered scar tissue from the old knife attack twisted as he pushed off the wall, sleeve rolled up against the downpour. He looked back. Quinn's brown eyes locked onto his. She didn't shout. She didn't need to. She simply moved. Her boots hit the wet pavement with the sharp crack of a starter's pistol. Tomás ran. The chase took them through the labyrinth of London's night. Past shuttered sex shops and the ghosts of Soho's jazz age, down streets where the rain turned the gutters into rushing rivers. Quinn kept pace, her military training overriding the protest of her forty-one-year-old knees. She was a machine of pursuit, salt-and-pepper hair plastered to her head, the leather watch on her wrist counting seconds that felt like hours. Tomás was fast for a man carrying the weight of a guilty conscience, his scarred forearm pumping as he cut through Chinatown, then north toward the canal, his sneakers splashing through puddles that swallowed the neon reflections whole. He knew where he was going. She knew he knew. They reached Camden as the rain intensified, a curtain of water that turned the world into a watercolor blur. The crowds thinned. The streets grew older, the buildings giving way to Victorian brick and rusted iron. Tomás didn't slow. He veered toward the abandoned Tube station, the entrance to Camden Town long sealed with corrugated metal and warning signs, a mouth of darkness beneath the railway arches. Quinn followed him to the threshold. The station yawned before them, a cathedral of decay. Water dripped from the concrete ceiling in a rhythm that mocked her watch. The air down here was different—thick, metallic, smelling of ozone and something else, something ancient and hungry. This was the Veil Market, the supernatural black market that moved with the lunar cycle, that traded in enchanted goods and banned alchemical substances and secrets that should have stayed buried. It required a bone token to enter. It was a place where the laws of physics bent and broke. Tomás stopped at the rusted gate. He reached into his jacket and produced a small, yellowed object—a finger bone, curved and polished by handling. He pressed it against a panel of corroded metal. With a sound like grinding teeth, the gate swung open, revealing stairs that spiraled down into the dark. Quinn halted at the top of the steps. Her hand rested on the service weapon at her hip, the leather of her holster slick with rain. The military precision in her bearing warred with the chaos in her chest. Protocol screamed at her to radio for backup, to secure the perimeter, to wait for a tactical unit. Eighteen years of service had taught her the value of procedure, of not walking into a supernatural black market alone at midnight in a city that had already swallowed too many good officers. But three years ago, DS Morris had died in her arms during a case that made no sense, a death that had involved whispers and shadows and blood that didn't behave like blood. The official report said heart attack. Quinn knew better. She had seen the sigils carved into the floorboards, the way Morris's eyes had gone wide with terror at something she couldn't see. The clique had been there. They knew what had happened. They knew what waited in places like this. She thought of her watch ticking on her left wrist, the steady rhythm of time marching toward a reckoning she had been running from for three years. Quinn descended the stairs. The darkness swallowed her whole. The temperature dropped twenty degrees in as many steps. The sound of the rain above faded to a distant memory, replaced by the drip of water on stone and the low hum of something electrical and wrong. Her boots found the platform of the abandoned station, and she emerged into a cavern of impossible light. The Veil Market sprawled before her like a fever dream. Stalls lined the old tracks, draped in velvet and shadow, their wares glowing with bioluminescent fungi and captured starlight. Creatures moved between the vendors—some humanoid, some not—trading in vials of liquid shadow and grimoires bound in skin that wasn't quite leather. The air tasted of copper and incense. A sign flickered overhead, written in a language that predated Latin, advertising information for sale, potions that could mend broken bones or break unbreakable wills. Quinn moved through the crowd with military precision, her sharp jaw set, her brown eyes scanning. She was a shark in a school of strange fish, and she didn't care if she was seen. She had followed a suspect into the belly of the supernatural world, and she would not stop until she had answers. There. Near a stall selling teeth that chattered in glass jars, Tomás Herrera paused. The Saint Christopher medallion glinted as he turned, his olive skin pale in the unnatural light, the scar on his forearm visible beneath his rolled sleeve. He was looking at something on the counter—a vial of silver liquid that pulsed like a heartbeat. Quinn pushed through the crowd, her boots ringing against the concrete platform. The market seemed to notice her, the chatter dying down as she approached, dozens of eyes—human and otherwise—turning in her direction. She didn't flinch. She had faced worse than this. She had faced the dark, and she had come back. She stepped into the light, rain still dripping from her salt-and-pepper hair, her leather watch ticking steady and true on her left wrist, and she reached for her cuffs. Tomás looked up. His warm brown eyes met hers, and for a moment, the noise of the market rushed back in—a tide of whispers and hisses and the clink of enchanted gold. He knew she was there. He knew what she wanted. And Quinn Quinn smiled, sharp and cold as the London rain, because the hunt was finally over, and the truth was waiting in the dark.
created_at"2026-10-07T09:30:46.42Z" 10/7/2026, 9:30:46 AM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency636
moderation_latency(null)
generation_time134923
tokens_prompt888
tokens_completion5178
native_tokens_prompt831
native_tokens_completion4726
native_tokens_completion_images(null)
native_tokens_reasoning3362
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"stop"
service_tier"default"
usage0.01044242
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791365446-6gVS8cku0imekI7KnYp6"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791365446-jTLsGTjDSASRvNqOCJht"
upstream_id"070ed2392da74576bc949ffca894cb83"
provider_responses
0
endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id"070ed2392da74576bc949ffca894cb83"
is_byokfalse
latency607
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.01044242
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"
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
totalTags0
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1228
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)
67.43% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1228
totalAiIsms8
found
0
word"fractured"
count1
1
word"streaming"
count1
2
word"weight"
count1
3
word"pumping"
count1
4
word"velvet"
count1
5
word"flickered"
count1
6
word"scanning"
count1
7
word"pulsed"
count1
highlights
0"fractured"
1"streaming"
2"weight"
3"pumping"
4"velvet"
5"flickered"
6"scanning"
7"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
emotionTells1
narrationSentences84
matches
0"e with terror"
23.81% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount5
hedgeCount2
narrationSentences84
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)
analyzedSentences84
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen39
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1219
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions2
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions47
wordCount1219
uniqueNames21
maxNameDensity0.98
worstName"Quinn"
maxWindowNameDensity1.5
worstWindowName"Quinn"
discoveredNames
Soho2
Harlow1
Quinn12
Raven1
Nest1
Metropolitan1
Police1
Herrera2
Saint2
Christopher2
London2
Chinatown1
Camden2
Victorian1
Tube1
Town1
Veil2
Market2
Morris2
Latin1
Tomás7
persons
0"Harlow"
1"Quinn"
2"Raven"
3"Herrera"
4"Saint"
5"Christopher"
6"Market"
7"Morris"
8"Latin"
9"Tomás"
places
0"Soho"
1"London"
2"Chinatown"
3"Camden"
4"Victorian"
5"Town"
globalScore1
windowScore1
32.81% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences64
glossingSentenceCount3
matches
0"maps that seemed to watch the patrons with blind, milky eyes"
1"felt like hours"
2"quite leather"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1219
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences84
matches
0"cycle, that traded"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs25
mean48.76
std32.73
cv0.671
sampleLengths
0104
160
24
379
43
516
616
7107
810
967
106
1189
1251
1390
1483
1527
164
1760
1883
1955
2057
2152
2229
2342
2425
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences84
matches
0"was seen"
99.50% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs199
matches
0"was going"
1"was looking"
2"was waiting"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount9
semicolonCount0
flaggedSentences7
totalSentences84
ratio0.083
matches
0"At his throat, the silver Saint Christopher medallion caught the light—a talisman that wouldn't save him now."
1"The air down here was different—thick, metallic, smelling of ozone and something else, something ancient and hungry."
2"He reached into his jacket and produced a small, yellowed object—a finger bone, curved and polished by handling."
3"Creatures moved between the vendors—some humanoid, some not—trading in vials of liquid shadow and grimoires bound in skin that wasn't quite leather."
4"He was looking at something on the counter—a vial of silver liquid that pulsed like a heartbeat."
5"The market seemed to notice her, the chatter dying down as she approached, dozens of eyes—human and otherwise—turning in her direction."
6"His warm brown eyes met hers, and for a moment, the noise of the market rushed back in—a tide of whispers and hisses and the clink of enchanted gold."
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1243
adjectiveStacks1
stackExamples
0"different—thick, metallic, smelling"
adverbCount17
adverbRatio0.013676588897827836
lyAdverbCount5
lyAdverbRatio0.004022526146419952
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences84
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences84
mean14.51
std9.56
cv0.659
sampleLengths
024
137
221
322
429
520
68
73
84
915
1021
1117
1226
133
146
153
164
173
1814
192
2010
2122
2213
2324
2438
256
264
2719
283
2914
303
3128
326
339
3413
3517
3631
377
3812
396
4018
419
4218
438
4418
4513
4618
4733
4833
496
36.11% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats13
diversityRatio0.30952380952380953
totalSentences84
uniqueOpeners26
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences82
matches(empty)
ratio0
54.15% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount34
totalSentences82
matches
0"She was five-foot-nine of military"
1"She had known the clique"
2"They always did."
3"His olive skin gleamed under"
4"He looked back."
5"She didn't shout."
6"She didn't need to."
7"She simply moved."
8"Her boots hit the wet"
9"She was a machine of"
10"He knew where he was"
11"She knew he knew."
12"They reached Camden as the"
13"He veered toward the abandoned"
14"It required a bone token"
15"It was a place where"
16"He reached into his jacket"
17"He pressed it against a"
18"Her hand rested on the"
19"She had seen the sigils"
ratio0.415
14.88% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount73
totalSentences82
matches
0"The rain didn't fall in"
1"Detective Harlow Quinn stood beneath"
2"She was five-foot-nine of military"
3"Quinn had been nursing a"
4"She had known the clique"
5"They always did."
6"The side door opened."
7"Tomás Herrera emerged into the"
8"His olive skin gleamed under"
9"He looked back."
10"Quinn's brown eyes locked onto"
11"She didn't shout."
12"She didn't need to."
13"She simply moved."
14"Her boots hit the wet"
15"The chase took them through"
16"Past shuttered sex shops and"
17"Quinn kept pace, her military"
18"She was a machine of"
19"Tomás was fast for a"
ratio0.89
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences82
matches(empty)
ratio0
0.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences50
technicalSentenceCount12
matches
0"The rain didn't fall in Soho so much as it assaulted, coming down in sheets that turned the cobblestones into mirrors of fractured neon."
1"Inside, the bar smelled of stale beer and old parchment, the walls crowded with black-and-white photographs and yellowed maps that seemed to watch the patrons w…"
2"At his throat, the silver Saint Christopher medallion caught the light—a talisman that wouldn't save him now."
3"Tomás was fast for a man carrying the weight of a guilty conscience, his scarred forearm pumping as he cut through Chinatown, then north toward the canal, his s…"
4"They reached Camden as the rain intensified, a curtain of water that turned the world into a watercolor blur."
5"This was the Veil Market, the supernatural black market that moved with the lunar cycle, that traded in enchanted goods and banned alchemical substances and sec…"
6"With a sound like grinding teeth, the gate swung open, revealing stairs that spiraled down into the dark."
7"Eighteen years of service had taught her the value of procedure, of not walking into a supernatural black market alone at midnight in a city that had already sw…"
8"She thought of her watch ticking on her left wrist, the steady rhythm of time marching toward a reckoning she had been running from for three years."
9"Creatures moved between the vendors—some humanoid, some not—trading in vials of liquid shadow and grimoires bound in skin that wasn't quite leather."
10"A sign flickered overhead, written in a language that predated Latin, advertising information for sale, potions that could mend broken bones or break unbreakabl…"
11"Near a stall selling teeth that chattered in glass jars, Tomás Herrera paused."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags0
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags0
74.0894%