Run: 2026-10-06-01M48W1VQEH2SJD8KZJF3EH41K

Run Details

Duration:
37.7s
Cost:
$0.005336
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 had turned London into something else entirely—a city of smeared neon and black glass, where the Thames ran silver and every puddle held a fractured sky. Detective Harlow Quinn pulled her collar higher and watched the man three storefronts ahead duck beneath a green neon sign. The Raven's Nest. She'd been tracking him for six hours, ever since the warehouse tip in Bermondsey, and now the trail had led her here, to this corner of Soho where the streetlamps flickered like dying things and the air smelled of spilled beer and something else, something older, something that made the hair on her neck lift despite the November cold. She checked her watch. 11:47. The leather band was cracked at the edges, worn soft by years of service. Eighteen years on the force, and she still couldn't sleep through the night without waking at 3:15, reaching for a partner who wasn't there. Morris. Three years now, and the case file still sat open on her desk at the precinct, gathering dust, gathering lies. The man—she'd learned his name was Tomás Herrera, though she suspected it was an alias, suspected most things about him—paused at the bar's entrance, glancing back. Their eyes met across the rain-slicked street. He didn't run. That was the thing that made her pause, made her gloved hand tighten on the service weapon at her hip. He simply raised one hand in a gesture that might have been greeting or warning, then slipped through the door. Quinn crossed the street. Her boots splashed through a gutter that ran red with autumn leaves. The green neon sign buzzed overhead, casting her shadow long and strange against the wet pavement. She could radio for backup. She should radio for backup. Instead she pushed through the door, into warmth that smelled of stale cigarettes and floor polish and the particular mustiness of old wood. The bar was exactly as she'd imagined from the outside—dim, cluttered, walls papered with maps and photographs in frames that had gone yellow with age. A jazz record played from somewhere, crackling and warped. Half a dozen patrons occupied the room, none of them looking up as she entered. A woman with silver hair at the bar. Two men in the corner playing cards. A figure in a hooded coat nursing something amber in a glass. Quinn moved to the bar. The bartender—a heavy man with a scar that bisected his left eyebrow—regarded her with the flat assessment of someone who had seen every kind of trouble walk through his door. "Detective Quinn." Not a question. "Silas said you might come." "Where is he?" The bartender's eyes flicked toward the back of the room, toward a bookshelf that held nothing but dusty volumes on local history. "Back room. But Detective—" He leaned closer, and she caught the scent of cloves on his breath. "You sure about this? Herrera's people, they don't take kindly to visitors. Especially not visitors with badges." "I'm not here for a social call." "Then you're here for trouble." He straightened, wiping his hands on a rag that had seen better decades. "Your funeral, Detective. Not mine." She found the bookshelf easily enough. A volume on the architecture of Christopher Wren's churches pulled free with a soft click, and behind it, a narrow passage descended into darkness. Quinn drew her weapon—a standard-issue Glock, reliable and unremarkable—and stepped through. The passage sloped downward, stone steps worn concave by centuries of use. The air grew cooler, then cold, carrying scents she couldn't identify: ozone and something organic, like a greenhouse after rain, like a hospital corridor stripped of antiseptic. Her flashlight beam caught moisture on the walls, colonies of pale fungus, the occasional scuttle of something small in the shadows. She counted forty-seven steps before the passage opened into a chamber that made her stop, made her breath catch in a way that had nothing to do with exertion. The Veil Market. She'd heard of it. Every detective in London had heard of it, the way you heard of things that existed in the spaces between the city's official maps. A black market for the supernatural, for things that shouldn't exist and did. The Metropolitan Police had a file on it, thin and mostly redacted, maintained by a unit that officially didn't exist. Quinn had read what she could get her hands on, three years ago, after Morris died in a case that the department had classified as an industrial accident and that she knew, with the certainty of someone who had held his cooling hand, was something else entirely. The chamber stretched before her like a cathedral of commerce. Stalls lined the curved walls of what had once been a Tube station—she recognized the tiling, the curved ceiling, the ghost of a platform edge now buried under commerce. Vendors hawked their wares in voices pitched low, conspiratorial. A woman sold vials of liquid that shifted color in the light. A man in a butcher's apron displayed teeth—human teeth, she thought, though she couldn't be certain—arranged in patterns on velvet. A child, no more than ten, offered maps that showed streets that didn't exist on any London atlas, streets that twisted and looped in impossible geometries. And everywhere, the crowd. Humans, mostly, though Quinn caught glimpses of other shapes in the periphery—a figure with too many joints, a face that resolved into something else when viewed directly. The market's clientele. The desperate, the curious, the damned. She moved through them, keeping her badge clipped to her coat, keeping her weapon hidden beneath her jacket. The rules here were different. She knew that. The Metropolitan Police had no jurisdiction in places like this, no authority, no protection. She was alone, and she was trespassing, and somewhere ahead of her, Tomás Herrera waited. She found him at a stall near the far wall, examining a collection of bone tokens with the focused attention of a man who had forgotten he was being hunted. The vendor—an old woman with milky eyes and fingers stained yellow—regarded Quinn with an expression that might have been amusement. "He's been asking about you, Detective," she said, not looking up from her wares. "Said you'd come. Said you'd follow." A pause. "Said you were like him, once. Before you chose the other side." Quinn stopped at the edge of the stall. Herrera turned, and she saw that he was younger than she'd expected, his olive skin unlined, his dark curls damp from the rain. The scar on his left forearm was visible where his sleeve had pushed up, a pale ribbon against brown skin. Around his neck, a medallion caught the dim light—Saint Christopher, patron of travelers, of lost causes. "Detective Quinn." His accent was soft, educated, with the faintest trace of something else beneath it. Spanish, perhaps, or the ghost of it. "I wondered if you'd actually come. Silas said you were stubborn. I hoped he was right." "Where were you on the night of October 14th? The warehouse fire in Bermondsey." Herrera's warm brown eyes didn't flinch. "I was at home. Alone. Ask my neighbors." "You were seen leaving the scene fifteen minutes before the fire started." "Seen by whom?" "That's what I'm trying to determine." Quinn stepped closer, close enough to smell him—soap and something herbal, something that reminded her of the clinic where she'd volunteered as a teenager, before the job, before Morris, before everything. "Herrera, three people died in that fire. One of them was a police informant. I need to know what you were doing there." "And if I tell you?" "Then maybe I don't arrest you. Maybe I listen to what you have to say." She let the silence stretch, watched the market continue its commerce around them, indifferent to her presence. "You're a former paramedic. You lost your license for treating patients the NHS couldn't help. I read your file, Herrera. You're not a killer. You're something else. Something I don't understand yet." For a moment, something flickered in his expression—relief, perhaps, or its opposite. "You don't understand what I am," he said quietly. "No one does. Not fully." He set down the bone token he'd been examining, turned to face her fully. "But you're close, Detective. Closer than you know. That's why I wanted to see you. That's why I led you here." "Why?" Herrera glanced toward the market's center, where a figure in a hooded coat was watching them with too much attention. "Because the people who killed your partner, Detective—they're the same people who set that fire. The same people who run this place, who profit from the boundary between your world and mine." He reached into his jacket, withdrew something that made Quinn's hand tighten on her weapon. Not a weapon. A photograph, creased and worn. "DS Morris didn't die in an accident. He was murdered. And I can prove it. I can show you who did it, and why, and how to stop them—if you're willing to go deeper than you've ever gone before." Quinn looked at the photograph. She couldn't see the image clearly in the dim light, but she saw Herrera's hand, steady now, offering. She thought of Morris, of the case file, of three years spent chasing shadows through a city that had never been only what it appeared to be. She thought of the choice in front of her: to walk away, to radio for backup, to let this go the way so many things went, unresolved, unavenged. Or to take the photograph, to follow him further into the dark, to become something she wasn't sure she was prepared to be. The rain was still falling above, indifferent to her decision. The market hummed around her, ancient and patient and hungry. "Show me," she said. Herrera smiled, and for the first time, she saw that it reached his eyes, that it was not entirely an act. "Then we'd better go. The full moon is rising, and the market moves when it does. We don't want to be caught between locations." He turned and walked deeper into the crowd, and Quinn followed, leaving the world she knew behind, stepping into the dark where the city's secrets waited, patient and terrible, for someone brave enough—or foolish enough—to find them.
created_at"2026-10-06T15:06:59.191Z" 10/6/2026, 3:06:59 PM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency629
moderation_latency(null)
generation_time37654
tokens_prompt888
tokens_completion2559
native_tokens_prompt843
native_tokens_completion2279
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.00533635
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791299219-5R0VKaR6TThyLBzTH3tk"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791299219-vghv0jRmvqF687xDkwwO"
upstream_id"aaeb315fd0414e82b65e201e34511b36"
provider_responses
0
endpoint_id"540e63db-cc7c-4556-bb67-d449579bcf1a"
id"aaeb315fd0414e82b65e201e34511b36"
is_byokfalse
latency629
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.00533635
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
totalTags9
adverbTagCount1
adverbTags
0"he said quietly [quietly]"
dialogueSentences30
tagDensity0.3
leniency0.6
rawRatio0.111
effectiveRatio0.067
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1733
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)
71.15% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1733
totalAiIsms10
found
0
word"fractured"
count1
1
word"flickered"
count2
2
word"warmth"
count1
3
word"eyebrow"
count1
4
word"flicked"
count1
5
word"standard"
count1
6
word"velvet"
count1
7
word"resolved"
count1
8
word"silence"
count1
highlights
0"fractured"
1"flickered"
2"warmth"
3"eyebrow"
4"flicked"
5"standard"
6"velvet"
7"resolved"
8"silence"
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
narrationSentences91
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences91
filterMatches
0"watch"
hedgeMatches
0"appeared to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences109
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen59
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1712
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions10
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions48
wordCount1374
uniqueNames22
maxNameDensity0.87
worstName"Quinn"
maxWindowNameDensity1.5
worstWindowName"Quinn"
discoveredNames
London3
Thames1
Harlow1
Quinn12
Raven1
Nest1
Bermondsey1
Soho1
November1
Tomás2
Herrera7
Christopher2
Wren1
Glock1
Veil1
Market1
Metropolitan2
Police2
Morris4
Tube1
Saint1
Spanish1
persons
0"Harlow"
1"Quinn"
2"Raven"
3"Tomás"
4"Herrera"
5"Christopher"
6"Wren"
7"Police"
8"Morris"
9"Saint"
places
0"London"
1"Thames"
2"Bermondsey"
3"Soho"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences69
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1712
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount2
totalSentences109
matches
0"saw that he"
1"saw that it"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs38
mean45.05
std33.33
cv0.74
sampleLengths
0110
164
276
365
476
535
610
73
856
97
1023
1141
1260
1329
143
15108
16106
1740
1855
1950
2034
2167
2239
2314
2414
2512
263
2760
285
2964
3061
311
32114
33101
3420
354
3645
3737
93.70% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences91
matches
0"was cracked"
1"being hunted"
2"was prepared"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs223
matches
0"was trespassing"
1"was watching"
2"was still falling"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount19
semicolonCount0
flaggedSentences13
totalSentences109
ratio0.119
matches
0"The rain had turned London into something else entirely—a city of smeared neon and black glass, where the Thames ran silver and every puddle held a fractured sky."
1"The man—she'd learned his name was Tomás Herrera, though she suspected it was an alias, suspected most things about him—paused at the bar's entrance, glancing back."
2"The bar was exactly as she'd imagined from the outside—dim, cluttered, walls papered with maps and photographs in frames that had gone yellow with age."
3"The bartender—a heavy man with a scar that bisected his left eyebrow—regarded her with the flat assessment of someone who had seen every kind of trouble walk through his door."
4"Quinn drew her weapon—a standard-issue Glock, reliable and unremarkable—and stepped through."
5"Stalls lined the curved walls of what had once been a Tube station—she recognized the tiling, the curved ceiling, the ghost of a platform edge now buried under commerce."
6"A man in a butcher's apron displayed teeth—human teeth, she thought, though she couldn't be certain—arranged in patterns on velvet."
7"Humans, mostly, though Quinn caught glimpses of other shapes in the periphery—a figure with too many joints, a face that resolved into something else when viewed directly."
8"The vendor—an old woman with milky eyes and fingers stained yellow—regarded Quinn with an expression that might have been amusement."
9"Around his neck, a medallion caught the dim light—Saint Christopher, patron of travelers, of lost causes."
10"\"That's what I'm trying to determine.\" Quinn stepped closer, close enough to smell him—soap and something herbal, something that reminded her of the clinic where she'd volunteered as a teenager, before the job, before Morris, before everything."
11"For a moment, something flickered in his expression—relief, perhaps, or its opposite."
12"He turned and walked deeper into the crowd, and Quinn followed, leaving the world she knew behind, stepping into the dark where the city's secrets waited, patient and terrible, for someone brave enough—or foolish enough—to find them."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1396
adjectiveStacks0
stackExamples(empty)
adverbCount40
adverbRatio0.02865329512893983
lyAdverbCount14
lyAdverbRatio0.01002865329512894
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences109
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences109
mean15.71
std11.06
cv0.704
sampleLengths
028
120
23
359
44
51
614
724
81
920
1026
117
123
1320
1420
154
1612
1716
185
195
2023
2125
229
2315
248
257
2612
275
2830
295
305
313
3222
3317
3417
357
3618
375
386
3924
4011
4112
4227
4321
4429
453
464
4724
4813
4920
53.09% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats11
diversityRatio0.37962962962962965
totalSentences108
uniqueOpeners41
38.31% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences87
matches
0"Instead she pushed through the"
ratio0.011
91.26% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount28
totalSentences87
matches
0"She'd been tracking him for"
1"She checked her watch."
2"Their eyes met across the"
3"He didn't run."
4"He simply raised one hand"
5"Her boots splashed through a"
6"She could radio for backup."
7"She should radio for backup."
8"He leaned closer, and she"
9"He straightened, wiping his hands"
10"She found the bookshelf easily"
11"Her flashlight beam caught moisture"
12"She counted forty-seven steps before"
13"She'd heard of it."
14"She moved through them, keeping"
15"She knew that."
16"She was alone, and she"
17"She found him at a"
18"she said, not looking up"
19"His accent was soft, educated,"
ratio0.322
28.97% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount75
totalSentences87
matches
0"The rain had turned London"
1"Detective Harlow Quinn pulled her"
2"The Raven's Nest."
3"She'd been tracking him for"
4"She checked her watch."
5"The leather band was cracked"
6"The man—she'd learned his name"
7"Their eyes met across the"
8"He didn't run."
9"That was the thing that"
10"He simply raised one hand"
11"Quinn crossed the street."
12"Her boots splashed through a"
13"The green neon sign buzzed"
14"She could radio for backup."
15"She should radio for backup."
16"The bar was exactly as"
17"A jazz record played from"
18"A woman with silver hair"
19"A figure in a hooded"
ratio0.862
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences87
matches(empty)
ratio0
0.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences51
technicalSentenceCount12
matches
0"She'd been tracking him for six hours, ever since the warehouse tip in Bermondsey, and now the trail had led her here, to this corner of Soho where the streetla…"
1"That was the thing that made her pause, made her gloved hand tighten on the service weapon at her hip."
2"Instead she pushed through the door, into warmth that smelled of stale cigarettes and floor polish and the particular mustiness of old wood."
3"The bartender—a heavy man with a scar that bisected his left eyebrow—regarded her with the flat assessment of someone who had seen every kind of trouble walk th…"
4"The bartender's eyes flicked toward the back of the room, toward a bookshelf that held nothing but dusty volumes on local history."
5"A black market for the supernatural, for things that shouldn't exist and did."
6"Quinn had read what she could get her hands on, three years ago, after Morris died in a case that the department had classified as an industrial accident and th…"
7"A child, no more than ten, offered maps that showed streets that didn't exist on any London atlas, streets that twisted and looped in impossible geometries."
8"Humans, mostly, though Quinn caught glimpses of other shapes in the periphery—a figure with too many joints, a face that resolved into something else when viewe…"
9"She moved through them, keeping her badge clipped to her coat, keeping her weapon hidden beneath her jacket."
10"She found him at a stall near the far wall, examining a collection of bone tokens with the focused attention of a man who had forgotten he was being hunted."
11"The vendor—an old woman with milky eyes and fingers stained yellow—regarded Quinn with an expression that might have been amusement."
13.89% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags9
uselessAdditionCount2
matches
0"she said, not looking up from her wares"
1"He set down, turned to face her fully"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags3
fancyCount0
fancyTags(empty)
dialogueSentences30
tagDensity0.1
leniency0.2
rawRatio0
effectiveRatio0
79.6788%