Run: 2026-02-20-01KHXQ0AZBVGSP1P94SAYNM0T9

Run Details

Duration:
28.3s
Cost:
$0.002622
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="4414" name="Eva Kowalski" aliases="Eva, Evie" pronouns="she/her" species="Human" storyRole="Best Friend"> <eyeColor>green</eyeColor> <hair>curly red</hair> <height>5'4"</height> <age>26</age> <glasses>round glasses</glasses> <satchel>worn leather satchel full of books</satchel> <freckles>freckled complexion</freckles> <nervousHabit>tucking hair behind her left ear</nervousHabit> <description>Aurora's childhood friend and an occult researcher.</description> <backstory>Moved to London two years before Aurora and works as a research assistant at the British Museum's restricted archives. She holds a master's degree in Ancient History from Oxford.</backstory> </character> <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> <item id="2004" name="Veil Compass" aliases="the Compass, shadow compass" type="Tool" origin="The Veil Market"> <casingMaterial>small brass compass</casingMaterial> <faceMarkings>face etched with protective sigils</faceMarkings> <needle>points toward the nearest supernatural rift or portal</needle> <patina>casing has a patina of verdigris</patina> <creator>crafted by a Shade artisan</creator> <description>A compass attuned to supernatural energy.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the mystery genre. A detective arrives at a crime scene in an unusual location. Something is wrong — the evidence doesn't add up. A colleague is present, offering a different interpretation. Through careful observation and deduction, the detective begins to see what others have missed. 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 abandoned Tube station smelled of damp concrete and rust, the kind of scent that clung to the back of your throat like a bad memory. Detective Harlow Quinn stepped over the police tape, her boots scuffing against the cracked tiles of what had once been Camden Town station. The overhead lights flickered, casting long shadows that stretched and twisted across the graffiti-scarred walls. Her leather watch creaked as she adjusted it, the second hand ticking with the same relentless precision she applied to every case. "Quinn, over here." The voice belonged to DS Carter, a broad-shouldered man with a face that had seen too many late nights and too little sleep. He stood near the edge of the platform, his torch beam cutting through the gloom to illuminate a body sprawled across the tracks. The victim was young, early twenties at most, his dark hair matted with blood. His limbs were splayed at unnatural angles, like a discarded marionette. Quinn crouched beside the body, her sharp jaw tightening as she took in the details. The victim’s clothes were torn, the fabric stiff with dried blood, but there were no defensive wounds on his hands. No signs of a struggle. She reached out, her gloved fingers brushing against the cold skin of his wrist. No pulse, of course, but something else caught her attention—a faint, almost imperceptible tremor beneath her fingertips. "Time of death?" she asked, her voice low. Carter consulted his notes. "ME puts it at around three this morning. No ID on him yet, but we’re running prints." Quinn nodded, her gaze drifting to the victim’s face. His eyes were open, wide and unblinking, the pupils dilated despite the harsh light. She leaned in closer, her breath fogging the air between them. There, just beneath the surface, was something else—something that didn’t belong. A faint, shimmering residue clung to his skin, like oil on water. "Carter," she said slowly, "did you notice this?" He frowned, stepping closer. "Notice what?" She pointed to the residue. "This. It’s all over him." Carter squinted, then shook his head. "I don’t see anything, Quinn. Just blood." Quinn exhaled sharply, her military precision kicking in as she forced herself to focus. She pulled a small evidence bag from her pocket and carefully scraped a sample of the residue into it. The substance clung to the plastic, swirling like smoke trapped in a bottle. "Get this to the lab," she said, sealing the bag. "Tell them to run it for anything unusual. Metals, chemicals, anything that doesn’t belong in a human body." Carter hesitated. "You think this is something more than a mugging gone wrong?" Quinn stood, her knees popping as she straightened. "I think this doesn’t add up. No defensive wounds, no signs of a struggle, and this residue—whatever it is—doesn’t look like anything I’ve seen before." Carter rubbed the back of his neck, his expression skeptical. "Maybe he was high. Some new designer drug, maybe. Or maybe he just fell." Quinn shot him a look. "Fell? From where? There’s no platform above us, no scaffolding. And even if he did, where’s the impact damage? His skull isn’t fractured, his ribs aren’t broken. He looks like he just... collapsed." Carter opened his mouth to argue, but Quinn cut him off with a sharp gesture. "Just get the sample to the lab. And check the CCTV—if there’s any footage of him coming in here, I want to see it." Carter sighed but nodded, pulling out his radio. Quinn turned back to the body, her mind racing. There was something familiar about this, something that scratched at the edges of her memory. She’d seen cases like this before—cases that didn’t fit, that defied explanation. Cases that had cost her partner his life. She reached into her coat pocket and pulled out a small brass compass, its casing etched with strange, looping sigils. The needle spun wildly for a moment before settling, pointing toward the far end of the platform. Quinn frowned. The compass wasn’t hers—it had been Morris’s, left behind in his desk after he’d vanished. She’d kept it, though she didn’t know why. It had never worked before. Not like this. She followed the needle’s direction, her boots echoing against the concrete as she moved deeper into the station. The air grew colder, the shadows thicker. The compass led her to a section of the wall where the tiles were cracked, the grout crumbling. She pressed her palm against the surface, feeling the faintest vibration beneath her fingers. "Quinn!" Carter’s voice cut through the silence. She turned to see him jogging toward her, his expression grim. "We’ve got a problem. The CCTV—it’s all static. Nothing useful." Quinn’s stomach twisted. "What about the sample?" Carter hesitated. "The lab says it’s not registering as anything they recognize. No matches in the system." Quinn exhaled sharply, her grip tightening around the compass. The needle was still pointing at the wall, its movement growing more insistent. She knew what this meant. She’d seen it before, in the weeks leading up to Morris’s disappearance. The residue, the static, the way the evidence just... vanished. She turned back to the wall, her fingers tracing the cracks. There was something here. Something hidden. "Quinn, what the hell is going on?" Carter’s voice was tight with frustration. She didn’t answer. Instead, she reached into her pocket and pulled out a small, curved bone token—another relic from Morris’s desk. She pressed it against the wall, and the moment it made contact, the tiles shimmered, dissolving like mist. A narrow passage opened before her, the air beyond thick with the scent of old magic and older secrets. Carter swore under his breath. "What the—?" Quinn stepped forward, the compass burning in her hand. The needle was spinning wildly now, pointing deeper into the darkness. She knew where this led. She’d been here before, in her nightmares. The Veil Market. She turned back to Carter, her expression grim. "Call for backup. And whatever you do, don’t follow me in there." Before he could respond, she stepped through the rift, the wall sealing itself behind her. The last thing she heard was Carter’s voice, muffled and distant, shouting her name. The market stretched out before her, a labyrinth of stalls and shadows, the air humming with the low murmur of hushed deals and whispered secrets. Quinn’s grip tightened around the compass. She was close now. Too close. And whatever was waiting for her in the dark, she knew it wasn’t human.
created_at"2026-02-20T14:24:34.809Z" 2/20/2026, 2:24:34 PM
model"mistralai/mistral-large-2512" 1/1/2512, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency454
moderation_latency(null)
generation_time27546
tokens_prompt923
tokens_completion1709
native_tokens_prompt875
native_tokens_completion1456
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"
usage0.0026215
router(null)
provider_responses
0
endpoint_id"fa718841-07ea-4b7e-b8a3-6069545c7e6a"
id"b4f48d0b7d56498cbaeab1aafc7aa7e9"
is_byokfalse
latency454
model_permaslug"mistralai/mistral-large-2512" 1/1/2512, 12:00:00 AM
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771597474-HrPzKE6jv04VJFw9bmcZ"
upstream_id"b4f48d0b7d56498cbaeab1aafc7aa7e9"
total_cost0.0026215
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
totalTags4
adverbTagCount1
adverbTags
0"she said slowly [slowly]"
dialogueSentences21
tagDensity0.19
leniency0.381
rawRatio0.25
effectiveRatio0.095
81.75% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1096
totalAiIsmAdverbs4
found
0
adverb"slowly"
count1
1
adverb"sharply"
count2
2
adverb"carefully"
count1
highlights
0"slowly"
1"sharply"
2"carefully"
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)
40.69% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1096
totalAiIsms13
found
0
word"flickered"
count1
1
word"gloom"
count1
2
word"pulse"
count1
3
word"fractured"
count1
4
word"racing"
count1
5
word"familiar"
count1
6
word"etched"
count1
7
word"echoing"
count1
8
word"silence"
count1
9
word"stomach"
count1
10
word"tracing"
count1
11
word"shimmered"
count1
12
word"the last thing"
count1
highlights
0"flickered"
1"gloom"
2"pulse"
3"fractured"
4"racing"
5"familiar"
6"etched"
7"echoing"
8"silence"
9"stomach"
10"tracing"
11"shimmered"
12"the last thing"
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
narrationSentences81
matches
0"t with frustration"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences81
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences96
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen33
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1085
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions8
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions35
wordCount862
uniqueNames9
maxNameDensity1.51
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Quinn"
discoveredNames
Tube1
Harlow1
Quinn13
Camden1
Town1
Carter13
Morris3
Veil1
Market1
persons
0"Harlow"
1"Quinn"
2"Carter"
3"Morris"
4"Market"
places
0"Camden"
1"Town"
globalScore0.746
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences57
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1085
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences96
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs34
mean31.91
std22.49
cv0.705
sampleLengths
086
174
271
38
421
557
68
76
810
913
1046
1128
1213
1333
1424
1538
1639
1752
1870
1957
2028
217
2217
2349
2417
2513
2658
277
2832
293
3020
3129
3237
3314
92.27% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences81
matches
0"were splayed"
1"were torn"
2"were cracked"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs157
matches
0"was spinning"
1"was waiting"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount5
semicolonCount0
flaggedSentences5
totalSentences96
ratio0.052
matches
0"No pulse, of course, but something else caught her attention—a faint, almost imperceptible tremor beneath her fingertips."
1"There, just beneath the surface, was something else—something that didn’t belong."
2"She’d seen cases like this before—cases that didn’t fit, that defied explanation."
3"The compass wasn’t hers—it had been Morris’s, left behind in his desk after he’d vanished."
4"Instead, she reached into her pocket and pulled out a small, curved bone token—another relic from Morris’s desk."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount869
adjectiveStacks0
stackExamples(empty)
adverbCount30
adverbRatio0.03452243958573072
lyAdverbCount7
lyAdverbRatio0.00805523590333717
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences96
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences96
mean11.3
std6.77
cv0.599
sampleLengths
026
123
215
322
426
523
614
711
815
920
105
1114
1217
138
144
1517
169
1714
1811
1911
2012
218
224
232
245
255
266
277
2814
2919
3013
3110
3218
332
3411
358
3625
3710
3814
395
4033
4115
4224
438
449
4515
4612
478
4820
4917
54.86% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.3541666666666667
totalSentences96
uniqueOpeners34
44.44% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences75
matches
0"Instead, she reached into her"
ratio0.013
70.67% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount28
totalSentences75
matches
0"Her leather watch creaked as"
1"He stood near the edge"
2"His limbs were splayed at"
3"She reached out, her gloved"
4"she asked, her voice low"
5"His eyes were open, wide"
6"She leaned in closer, her"
7"she said slowly"
8"He frowned, stepping closer."
9"She pointed to the residue."
10"She pulled a small evidence"
11"she said, sealing the bag"
12"She’d seen cases like this"
13"She reached into her coat"
14"She’d kept it, though she"
15"It had never worked before."
16"She followed the needle’s direction,"
17"She pressed her palm against"
18"She turned to see him"
19"She knew what this meant."
ratio0.373
13.33% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount67
totalSentences75
matches
0"The abandoned Tube station smelled"
1"Detective Harlow Quinn stepped over"
2"The overhead lights flickered, casting"
3"Her leather watch creaked as"
4"The voice belonged to DS"
5"He stood near the edge"
6"The victim was young, early"
7"His limbs were splayed at"
8"Quinn crouched beside the body,"
9"The victim’s clothes were torn,"
10"She reached out, her gloved"
11"she asked, her voice low"
12"Carter consulted his notes."
13"Quinn nodded, her gaze drifting"
14"His eyes were open, wide"
15"She leaned in closer, her"
16"There, just beneath the surface,"
17"A faint, shimmering residue clung"
18"she said slowly"
19"He frowned, stepping closer."
ratio0.893
66.67% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences75
matches
0"Before he could respond, she"
ratio0.013
89.29% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences40
technicalSentenceCount3
matches
0"The abandoned Tube station smelled of damp concrete and rust, the kind of scent that clung to the back of your throat like a bad memory."
1"The overhead lights flickered, casting long shadows that stretched and twisted across the graffiti-scarred walls."
2"There was something familiar about this, something that scratched at the edges of her memory."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags4
uselessAdditionCount1
matches
0"she asked, her voice low"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags3
fancyCount0
fancyTags(empty)
dialogueSentences21
tagDensity0.143
leniency0.286
rawRatio0
effectiveRatio0
80.6879%