Run: 2026-02-20-01KHXQ3RW5VK4CDV05ZVT82Z0H

Run Details

Duration:
30.8s
Cost:
$0.004570
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 came down in sheets, turning London’s neon glow into a smeared watercolor of blues and reds. Detective Harlow Quinn didn’t slow her pace. Her boots splashed through ankle-deep puddles, each step deliberate, measured—military precision honed over two decades of chasing men who thought they could outrun the law. The suspect, a wiry figure in a black hoodie, darted around the corner of a shuttered kebab shop, his breath ragged. She heard it over the drumming rain, the way a predator hears the panic in its prey. She rounded the corner just as he vaulted over a stack of milk crates, sending them clattering. Harlow didn’t bother with the crates. She took the alley at a sprint, her leather watch strap damp against her wrist, the salt-and-pepper stubble of her hair plastered to her scalp. The suspect’s silhouette flickered under a flickering streetlamp—just long enough for her to see the glint of something metallic in his hand. A knife? A token? She couldn’t tell, but the way he clutched it told her it was worth the chase. “Police!” she barked, voice cutting through the downpour. “Stop now!” He didn’t. Of course he didn’t. He skidded left into the mouth of an underground station, the green tilework slick with rain. Harlow followed, her fingers brushing the grip of her service weapon. She wouldn’t draw—not yet. Not unless she had to. The station was abandoned, the turnstiles rusted open, the air thick with the scent of damp concrete and something older, something metallic and faintly electric, like the aftertaste of a storm. The suspect’s footsteps echoed ahead of her, slapping against the stairs. Harlow descended, her free hand trailing the grimy wall for balance. The fluorescent lights buzzed overhead, casting a sickly yellow pallor over the graffiti-scarred tiles. At the bottom, the platform stretched into darkness, the tracks long since removed, replaced by a labyrinth of stalls and makeshift tents. The Veil Market. She’d heard the whispers, of course. Every cop in London had. A black market for things that shouldn’t exist—potions in glass vials, charms made of bone, information traded in hushed tones. The kind of place where men like her suspect disappeared into the shadows and never came back out. Harlow hesitated at the edge of the platform. The suspect was already weaving through the crowd, his hood pulled low. The market hummed with activity—hooded figures bartering over jars of swirling mist, a woman with too many teeth offering a vial of something black and viscous to a nervous buyer. The air smelled of burnt herbs and copper. She exhaled sharply. Three years ago, she’d lost Morris chasing a lead just like this—into the dark, into the unknown. They’d found his body two days later in a back alley, his eyes wide and unseeing, his skin marked with symbols that made the coroner cross herself. The case had been buried before Harlow could dig too deep. But she’d seen enough to know the world was sharper at the edges than she’d been taught. A hand clamped onto her shoulder. Harlow spun, her pistol drawn in one fluid motion, the muzzle pressing into the soft flesh under a man’s jaw. He didn’t flinch. Warm brown eyes met hers, steady, unarmed. Tomás Herrera. The Saint Christopher medallion at his throat caught the dim light as he raised his hands slowly, palms out. “Easy, Detective,” he said, his voice low, accented with the rolling cadence of Seville. “You don’t want to do that here.” Harlow didn’t lower the gun. “You know this place.” It wasn’t a question. Tomás’s gaze flicked toward the crowd, then back to her. The scar on his forearm—white against his olive skin—twitched as he tensed. “Better than you do.” “Then you know what he’s carrying.” She jerked her chin toward the suspect, now vanished into the press of bodies. Tomás exhaled through his nose. “A bone token. Gets you past the deeper stalls. The kind that sell things you *really* don’t want to see.” Harlow’s finger tightened on the trigger. “I don’t care what he’s buying. I care what he’s running from.” “Then you’re already in over your head.” Tomás’s voice dropped. “This isn’t your jurisdiction, Detective. Not anymore.” She knew what he meant. The Veil Market didn’t play by her rules. But Morris’s face flashed in her mind—his last case file, the one she’d “misplaced” before Internal Affairs could shred it. The symbols scrawled in the margins. The same ones she’d seen tattooed on a corpse last week, drained of blood but still warm. Harlow holstered her weapon. “Take me to him.” Tomás’s jaw worked. For a second, she thought he’d refuse. Then he gave a sharp nod. “Stay close. And *do not* touch anything.” She followed him into the throng, her shoulders brushing against cloaked figures who eyed her with open hostility. A man with a face like cracked leather hissed something in a language she didn’t recognize. Tomás answered in the same tongue, his voice smooth, placating. The man melted back into the shadows. “What’d you say?” Harlow muttered. “That you’re with me. And that I’d gut anyone who lays a finger on you.” Tomás didn’t look back. “They respect violence here. Not badges.” The deeper they went, the thicker the air became, cloying with the scent of incense and something darker—damp earth and old blood. The stalls here didn’t sell trinkets. They sold *things*. A jarred heart pulsed lazily on a bed of straw. A mirror reflected a face that wasn’t hers. Harlow averted her eyes. Then she saw him. The suspect—no, the *target*—was hunched over a table, sliding the bone token across the wood. The vendor, a gaunt woman with fingers like spider legs, plucked it up and examined it before producing a small wooden box. The target opened it, and even from ten feet away, Harlow felt the *wrongness* of whatever was inside. A low, resonant hum filled her skull, like a tuning fork struck against bone. Tomás grabbed her arm. “We need to go. *Now.*” Harlow shook him off. “Not without him.” She moved before Tomás could stop her, shoving through the crowd. The target snapped the box shut just as she reached him, his eyes wide, pupils blown black with fear—or something worse. She grabbed his collar, slamming him against the table. The wooden box skittered across the floor. “Police,” she snarled. “You’re under arrest.” The target laughed, a wet, rattling sound. Then his skin *split*. Not like a cut. Like a seam unraveling. His mouth stretched too wide, his jaw unhinging, and something *black* and *glistening* spilled out— Harlow recoiled, her training screaming at her to *shoot*, but her fingers wouldn’t obey. Tomás yanked her back just as the thing that had been a man lunged, its limbs bending in ways that made her stomach heave. The vendor hissed, her spider-fingers weaving through the air. The humming in Harlow’s skull became a shriek. Then the lights went out. Not the fluorescents—they still buzzed overhead, weak and yellow. But the *other* light, the one that had been casting long, wrong shadows, snuffed out like a candle. The market erupted into chaos. Stalls overturned. Glass shattered. Harlow’s boots slipped on something slick—blood? Oil? She didn’t want to know. Tomás dragged her toward the stairs, his breath coming fast. “We’re leaving. *Now.*” Harlow twisted free. “I’m not—” “You’re *not a cop here*,” he snapped, his voice raw. “You’re *prey*. That thing you just saw? It’s the *least* of what’s down here. And you’ve just made yourself interesting.” Harlow’s pulse hammered in her throat. She could still see Morris’s body, the symbols carved into his flesh. Still hear the way his voice had sounded on the radio that last night—*static-laced, wrong*. Tomás grabbed her wrist, his grip iron. “I’m not losing another one to this place.” She let him pull her up the stairs, her mind racing. The wooden box. The bone token. The way the target’s skin had *split*. At the top, the rain hit her like a slap. Harlow gasped, bending double, her hands on her knees. The street was empty. No suspects. No monsters. Just the drumming rain and the distant wail of a police siren. Tomás didn’t let go of her. “You need to forget you saw any of this.” Harlow straightened, wiping rain from her face. Her watch read 3:17 AM. The night was still young. “Tell me what he was buying,” she said. Tomás’s expression darkened. “A way to cross the Veil. Permanently.” She knew what that meant. Three years ago, Morris had been researching the same thing. Harlow met Tomás’s gaze. “I need to know where it leads.” “Somewhere you *can’t* follow.” His voice was low, urgent. “Detective, whatever you’re chasing—it’s chasing you back.” She looked down at her hands. They were steady. “Then it’s a good thing,” she said, “I’ve got a head start.”
created_at"2026-02-20T14:26:27.346Z" 2/20/2026, 2:26:27 PM
model"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency282
moderation_latency(null)
generation_time30700
tokens_prompt914
tokens_completion2396
native_tokens_prompt840
native_tokens_completion2117
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)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.00457
router(null)
provider_responses
0
endpoint_id"13c5002b-8c5b-490c-8a5f-52ec0242804f"
id"874e94920dc4448da4cca86a7cfe9e36"
is_byokfalse
latency282
model_permaslug"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771597587-3oHLfccbWOHNLqpdojpN"
upstream_id"874e94920dc4448da4cca86a7cfe9e36"
total_cost0.00457
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags11
adverbTagCount0
adverbTags(empty)
dialogueSentences33
tagDensity0.333
leniency0.667
rawRatio0
effectiveRatio0
86.66% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1499
totalAiIsmAdverbs4
found
0
adverb"sharply"
count1
1
adverb"slowly"
count1
2
adverb"really"
count1
3
adverb"lazily"
count1
highlights
0"sharply"
1"slowly"
2"really"
3"lazily"
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)
49.97% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1499
totalAiIsms15
found
0
word"measured"
count1
1
word"predator"
count1
2
word"flickered"
count1
3
word"glint"
count1
4
word"electric"
count1
5
word"footsteps"
count1
6
word"echoed"
count1
7
word"flicked"
count1
8
word"pulsed"
count1
9
word"unraveling"
count1
10
word"glistening"
count1
11
word"stomach"
count1
12
word"shattered"
count1
13
word"pulse"
count1
14
word"racing"
count1
highlights
0"measured"
1"predator"
2"flickered"
3"glint"
4"electric"
5"footsteps"
6"echoed"
7"flicked"
8"pulsed"
9"unraveling"
10"glistening"
11"stomach"
12"shattered"
13"pulse"
14"racing"
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
narrationSentences134
matches
0"k with fear"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount0
narrationSentences134
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences155
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen31
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans18
markdownWords23
totalWords1479
ratio0.016
matches
0"really"
1"do not"
2"things"
3"target"
4"wrongness"
5"Now."
6"split"
7"black"
8"glistening"
9"shoot"
10"other"
11"Now."
12"not a cop here"
13"prey"
14"least"
15"static-laced, wrong"
16"split"
17"can’t"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions11
unquotedAttributions0
matches(empty)
63.45% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions54
wordCount1271
uniqueNames13
maxNameDensity1.73
worstName"Harlow"
maxWindowNameDensity3
worstWindowName"Harlow"
discoveredNames
London2
Harlow22
Quinn1
Veil2
Market2
Morris4
Herrera1
Saint1
Christopher1
Seville1
Tomás15
Internal1
Affairs1
persons
0"Harlow"
1"Quinn"
2"Market"
3"Morris"
4"Herrera"
5"Saint"
6"Christopher"
7"Tomás"
8"Affairs"
places
0"London"
1"Seville"
globalScore0.635
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences83
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1479
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences155
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs53
mean27.91
std23.33
cv0.836
sampleLengths
088
190
210
36
467
561
649
758
875
96
1051
1121
129
134
1426
1520
1625
1718
1817
1956
208
2123
2251
235
2425
2553
264
2769
289
297
3048
316
3211
3323
3455
355
3648
3713
385
3930
4033
4115
4224
4339
4415
4517
468
4710
4815
4911
97.41% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences134
matches
0"was abandoned"
1"been buried"
2"been taught"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs223
matches(empty)
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount17
semicolonCount0
flaggedSentences15
totalSentences155
ratio0.097
matches
0"Her boots splashed through ankle-deep puddles, each step deliberate, measured—military precision honed over two decades of chasing men who thought they could outrun the law."
1"The suspect’s silhouette flickered under a flickering streetlamp—just long enough for her to see the glint of something metallic in his hand."
2"She wouldn’t draw—not yet."
3"A black market for things that shouldn’t exist—potions in glass vials, charms made of bone, information traded in hushed tones."
4"The market hummed with activity—hooded figures bartering over jars of swirling mist, a woman with too many teeth offering a vial of something black and viscous to a nervous buyer."
5"Three years ago, she’d lost Morris chasing a lead just like this—into the dark, into the unknown."
6"The scar on his forearm—white against his olive skin—twitched as he tensed."
7"But Morris’s face flashed in her mind—his last case file, the one she’d “misplaced” before Internal Affairs could shred it."
8"The deeper they went, the thicker the air became, cloying with the scent of incense and something darker—damp earth and old blood."
9"The suspect—no, the *target*—was hunched over a table, sliding the bone token across the wood."
10"The target snapped the box shut just as she reached him, his eyes wide, pupils blown black with fear—or something worse."
11"His mouth stretched too wide, his jaw unhinging, and something *black* and *glistening* spilled out—"
12"Not the fluorescents—they still buzzed overhead, weak and yellow."
13"Harlow’s boots slipped on something slick—blood?"
14"Still hear the way his voice had sounded on the radio that last night—*static-laced, wrong*."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1290
adjectiveStacks0
stackExamples(empty)
adverbCount33
adverbRatio0.02558139534883721
lyAdverbCount5
lyAdverbRatio0.003875968992248062
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences155
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences155
mean9.54
std6.64
cv0.696
sampleLengths
018
17
225
321
417
517
66
725
822
92
102
1116
128
132
142
154
1616
1711
184
195
2031
2111
2211
2314
2422
253
266
275
2820
2918
308
3112
3230
338
343
3517
3627
3711
3817
396
4020
413
427
432
4419
4514
467
475
484
494
40.32% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats15
diversityRatio0.2645161290322581
totalSentences155
uniqueOpeners41
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount7
totalSentences121
matches
0"Of course he didn’t."
1"Then he gave a sharp"
2"Then she saw him."
3"Then his skin *split*."
4"Then the lights went out."
5"Still hear the way his"
6"Just the drumming rain and"
ratio0.058
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount30
totalSentences121
matches
0"Her boots splashed through ankle-deep"
1"She heard it over the"
2"She rounded the corner just"
3"She took the alley at"
4"She couldn’t tell, but the"
5"she barked, voice cutting through"
6"He skidded left into the"
7"She wouldn’t draw—not yet."
8"She’d heard the whispers, of"
9"She exhaled sharply."
10"They’d found his body two"
11"He didn’t flinch."
12"he said, his voice low,"
13"It wasn’t a question."
14"She jerked her chin toward"
15"She knew what he meant."
16"She followed him into the"
17"They sold *things*."
18"She moved before Tomás could"
19"She grabbed his collar, slamming"
ratio0.248
42.64% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount101
totalSentences121
matches
0"The rain came down in"
1"Detective Harlow Quinn didn’t slow"
2"Her boots splashed through ankle-deep"
3"The suspect, a wiry figure"
4"She heard it over the"
5"She rounded the corner just"
6"Harlow didn’t bother with the"
7"She took the alley at"
8"The suspect’s silhouette flickered under"
9"She couldn’t tell, but the"
10"she barked, voice cutting through"
11"He skidded left into the"
12"Harlow followed, her fingers brushing"
13"She wouldn’t draw—not yet."
14"The station was abandoned, the"
15"The suspect’s footsteps echoed ahead"
16"Harlow descended, her free hand"
17"The fluorescent lights buzzed overhead,"
18"The Veil Market."
19"She’d heard the whispers, of"
ratio0.835
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences121
matches(empty)
ratio0
74.18% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences52
technicalSentenceCount5
matches
0"Her boots splashed through ankle-deep puddles, each step deliberate, measured—military precision honed over two decades of chasing men who thought they could ou…"
1"A black market for things that shouldn’t exist—potions in glass vials, charms made of bone, information traded in hushed tones."
2"They’d found his body two days later in a back alley, his eyes wide and unseeing, his skin marked with symbols that made the coroner cross herself."
3"She followed him into the throng, her shoulders brushing against cloaked figures who eyed her with open hostility."
4"Tomás yanked her back just as the thing that had been a man lunged, its limbs bending in ways that made her stomach heave."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags11
uselessAdditionCount3
matches
0"she barked, voice cutting through the downpour"
1"he said, his voice low, accented with the rolling cadence of Seville"
2"he snapped, his voice raw"
28.79% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags7
fancyCount4
fancyTags
0"she barked (bark)"
1"Harlow muttered (mutter)"
2"she snarled (snarl)"
3"he snapped (snap)"
dialogueSentences33
tagDensity0.212
leniency0.424
rawRatio0.571
effectiveRatio0.242
79.4472%