Run: 2026-02-20-01KHY8YC0RQAB7W0W3MGYNXDFK

Run Details

Duration:
11.8s
Cost:
$0.000502
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 stairwell reeked of damp concrete and something older—something metallic, like rusted blood. Detective Harlow Quinn adjusted the strap of her satchel as she descended, her boots echoing hollowly against the cracked tiles. The air grew thicker with each step, pressing against her skin like a held breath. This wasn’t a standard crime scene. It wasn’t even a standard location. She’d been called to an abandoned Tube station beneath Camden, though the address the dispatch had given her didn’t match any official records. No signs, no markers, just a set of rusted gates at the end of a dead-end alley, guarded by a man who hadn’t spoken a word. He’d pressed a bone token into her palm—small, smooth, carved with a spiral that seemed to shift when she looked at it too long. One touch, and the gates had swung open as if on silent hinges. Now, standing in the flickering glow of a single bulb dangling from a wire, Quinn took in the scene. The body was sprawled near the center of the platform, a man in a tailored suit, his throat slit ear to ear. No signs of struggle, no defensive wounds. Just the clean, precise cut of a blade. But that wasn’t what had brought her here. It was the *other* body. Lying a few feet away, half-hidden beneath a collapsed stack of crates, was a second figure—tall, gaunt, dressed in black. The skin was too pale, the fingers too long, the joints bending at angles that made Quinn’s stomach tighten. No pulse. No breath. No blood, though the throat was just as neatly severed. She crouched, her gloved fingers brushing the collar of the second corpse. The fabric was fine, almost silk-like, but it didn’t tear under her touch. No fibers snagged. No weight to it. Like it was made of something that wasn’t quite *there*. “You’re staring at the wrong one,” a voice said from behind her. Quinn didn’t flinch. She stood slowly, turning to face the figure leaning against the wall—a younger detective, his badge reading *DS Whitaker*. He had a notepad in hand, his pen hovering over a page of scribbled notes. “This isn’t a homicide,” Whitaker continued, gesturing vaguely at the scene. “It’s a suicide. The guy in the suit did it, then—” he shrugged, “—whatever *that* is, happened after.” Quinn’s gaze flicked back to the second body. “You’re telling me a man slit his own throat, then was joined by a corpse that doesn’t bleed, doesn’t weigh anything, and wasn’t here when the first body was discovered?” Whitaker exhaled through his nose, like she was being deliberately obtuse. “Look at the angle of the blade. The first guy was right-handed. The cut’s too precise for a lefty. And the second body? That’s not a person. That’s a *thing*. Something that got dragged in after.” Quinn ignored the dismissal in his tone. She moved closer to the first body, crouching again. The suit was expensive—bespoke, probably. The cufflinks were silver, etched with a symbol she didn’t recognize. She reached for them, then hesitated. The skin around the wrists was unmarked, but the flesh beneath was too smooth, too cold. Like the second corpse. She stood abruptly. “You’ve got no photos of the scene before the second body was found?” Whitaker blinked. “Of course we do. But—” “Show me.” He hesitated, then pulled a phone from his pocket, tapping through a series of images. The first few were standard—wide shots of the platform, the body in the suit. Then, in the third photo, something shifted. In the background, near the edge of the platform, a dark shape stood just out of frame. Too tall. Too still. Quinn’s fingers tightened around the phone. “Zoom in.” Whitaker did, and the shape resolved into the second corpse, standing perfectly still, its long fingers resting at its sides. But in the next photo, taken seconds later, it was gone. “That’s impossible,” Whitaker muttered. Quinn didn’t answer. She was already moving, her boots crunching over broken glass and something wetter. She knelt beside the crates the second body had been half-buried under, running her fingers along the edges. The wood was old, warped, but the nails holding them together were fresh. Too fresh. She pulled one free, holding it up. The metal was warm to the touch. “These weren’t here before,” she said. Whitaker frowned. “What are you—?” “Someone staged this.” Quinn stood, her voice low. “The first body was killed, then the second was *placed* here. But not by the first killer. By someone else.” Whitaker’s pen stilled. “You’re saying this is a setup?” Quinn’s gaze flicked to the bone token still clutched in her pocket. “I’m saying we’re not dealing with a murder. We’re dealing with a *message*.” A sound cut through the air—a low, rhythmic *clicking*, like bones knocking together. Quinn’s head snapped toward the tunnel leading deeper into the station. The light flickered, casting long shadows that seemed to twist unnaturally. Whitaker followed her gaze, his face pale. “What the hell was that?” Quinn didn’t answer. She was already moving, her hand slipping into her satchel. Her fingers closed around the Veil Compass—small, brass, its needle spinning wildly before settling with a sharp *click*. The direction pointed straight into the dark. “Stay here,” she said. Whitaker opened his mouth to protest, but Quinn was already stepping into the tunnel, her pulse steady despite the weight of the unknown. The air grew colder, thicker, like she was stepping into a different kind of space. The walls seemed to breathe, the shadows deepening into shapes that weren’t quite right. Then she saw it. A rift. Not a door. Not a portal. A *tear* in the air, jagged and uneven, like someone had reached in and ripped a piece of the world away. And beyond it— Movement. Something was coming through. Quinn’s hand tightened around the compass. The needle spun again, then stilled, pointing deeper into the dark. She took a step forward, then another, her boots silent on the concrete. The thing that emerged from the rift was tall, its limbs too long, its skin stretched too tight over bones that didn’t quite fit. It didn’t scream. It didn’t even breathe. It just *stood*, its hollow eyes fixed on her. Then it smiled. And Quinn realized— This wasn’t the first time. She’d seen this before. In her dreams. In the moments before she’d lost Morris. In the way the light bent wrong at the edges of her vision when she wasn’t looking. The thing in the tunnel took another step forward, and Quinn’s hand flew to her side, fingers brushing the grip of her service pistol. But she didn’t draw. Not yet. Because she knew, with a certainty that settled like ice in her veins, that bullets wouldn’t stop this. Not here. Not now. The thing tilted its head, and for the first time, Quinn noticed the mark on its throat—a sigil, carved into the flesh, glowing faintly in the dark. The same sigil as the cufflinks. The same sigil as the bone token in her pocket. She exhaled slowly, her mind racing. This wasn’t a crime scene. It was a *trap*. And she’d just walked into it.
created_at"2026-02-20T19:38:04.706Z" 2/20/2026, 7:38:04 PM
model"mistralai/ministral-14b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency225
moderation_latency(null)
generation_time11630
tokens_prompt923
tokens_completion1922
native_tokens_prompt875
native_tokens_completion1637
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached128
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"
usage0.0005024
router(null)
provider_responses
0
endpoint_id"0b53717b-9af5-4de3-80af-ebedd2adf981"
id"0599a66303c04b43a9af1689485541f2"
is_byokfalse
latency225
model_permaslug"mistralai/ministral-14b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771616284-K8nmItJMbHj6IgAK6Lcg"
upstream_id"0599a66303c04b43a9af1689485541f2"
total_cost0.0005024
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
totalTags7
adverbTagCount0
adverbTags(empty)
dialogueSentences18
tagDensity0.389
leniency0.778
rawRatio0
effectiveRatio0
83.55% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1216
totalAiIsmAdverbs4
found
0
adverb"slowly"
count2
1
adverb"deliberately"
count1
2
adverb"perfectly"
count1
highlights
0"slowly"
1"deliberately"
2"perfectly"
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)
30.10% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1216
totalAiIsms17
found
0
word"echoing"
count1
1
word"standard"
count3
2
word"stomach"
count1
3
word"pulse"
count2
4
word"silk"
count1
5
word"weight"
count2
6
word"flicked"
count2
7
word"etched"
count1
8
word"resolved"
count1
9
word"rhythmic"
count1
10
word"flickered"
count1
11
word"racing"
count1
highlights
0"echoing"
1"standard"
2"stomach"
3"pulse"
4"silk"
5"weight"
6"flicked"
7"etched"
8"resolved"
9"rhythmic"
10"flickered"
11"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
emotionTells0
narrationSentences111
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount3
narrationSentences111
filterMatches(empty)
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences122
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen37
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans12
markdownWords13
totalWords1202
ratio0.011
matches
0"other"
1"there"
2"DS Whitaker"
3"that"
4"thing"
5"placed"
6"message"
7"clicking"
8"click"
9"tear"
10"stood"
11"trap"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions17
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions34
wordCount1030
uniqueNames9
maxNameDensity1.65
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Quinn"
discoveredNames
Harlow1
Quinn17
Tube1
Camden1
Whitaker10
Veil1
Compass1
Movement1
Morris1
persons
0"Harlow"
1"Quinn"
2"Whitaker"
3"Morris"
places(empty)
globalScore0.675
windowScore0.667
5.07% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences69
glossingSentenceCount4
matches
0"spiral that seemed to shift when she looked at it too long"
1"quite there"
2"shadows that seemed to twist unnaturally"
3"quite fit"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1202
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences122
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs59
mean20.37
std18.98
cv0.932
sampleLengths
060
186
219
345
45
553
642
712
837
929
1038
1147
1258
1316
147
152
1636
1721
188
1931
204
2149
2214
236
245
2528
269
2725
2835
2912
3031
317
324
3352
344
352
3630
371
384
3930
4040
413
423
435
444
453
467
4717
4830
4918
92.62% Passive voice overuse
Target: ≤2% passive sentences
passiveCount4
totalSentences111
matches
0"been called"
1"was sprawled"
2"was made"
3"was gone"
45.86% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs173
matches
0"was being"
1"was stepping"
2"was coming"
3"wasn’t looking"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount11
semicolonCount0
flaggedSentences11
totalSentences122
ratio0.09
matches
0"The stairwell reeked of damp concrete and something older—something metallic, like rusted blood."
1"He’d pressed a bone token into her palm—small, smooth, carved with a spiral that seemed to shift when she looked at it too long."
2"Lying a few feet away, half-hidden beneath a collapsed stack of crates, was a second figure—tall, gaunt, dressed in black."
3"She stood slowly, turning to face the figure leaning against the wall—a younger detective, his badge reading *DS Whitaker*."
4"The suit was expensive—bespoke, probably."
5"The first few were standard—wide shots of the platform, the body in the suit."
6"A sound cut through the air—a low, rhythmic *clicking*, like bones knocking together."
7"Her fingers closed around the Veil Compass—small, brass, its needle spinning wildly before settling with a sharp *click*."
8"And beyond it—"
9"And Quinn realized—"
10"The thing tilted its head, and for the first time, Quinn noticed the mark on its throat—a sigil, carved into the flesh, glowing faintly in the dark."
88.86% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1043
adjectiveStacks0
stackExamples(empty)
adverbCount55
adverbRatio0.052732502396931925
lyAdverbCount12
lyAdverbRatio0.011505273250239693
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences122
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences122
mean9.85
std7.26
cv0.737
sampleLengths
013
120
215
36
46
523
626
724
813
919
1022
117
128
138
145
1520
1619
172
182
1910
2012
2113
223
234
2410
2512
263
2719
2815
2911
3018
318
3230
3311
3436
357
369
375
3811
396
4016
414
423
4313
442
455
462
4715
4814
497
37.70% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats15
diversityRatio0.29508196721311475
totalSentences122
uniqueOpeners36
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount4
totalSentences95
matches
0"Just the clean, precise cut"
1"Then, in the third photo,"
2"Then she saw it."
3"Then it smiled."
ratio0.042
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount23
totalSentences95
matches
0"It wasn’t even a standard"
1"She’d been called to an"
2"He’d pressed a bone token"
3"It was the *other* body."
4"She crouched, her gloved fingers"
5"She stood slowly, turning to"
6"He had a notepad in"
7"She moved closer to the"
8"She reached for them, then"
9"She stood abruptly."
10"He hesitated, then pulled a"
11"She was already moving, her"
12"She knelt beside the crates"
13"She pulled one free, holding"
14"She was already moving, her"
15"Her fingers closed around the"
16"She took a step forward,"
17"It didn’t scream."
18"It didn’t even breathe."
19"It just *stood*, its hollow"
ratio0.242
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount68
totalSentences95
matches
0"The stairwell reeked of damp"
1"Detective Harlow Quinn adjusted the"
2"The air grew thicker with"
3"This wasn’t a standard crime"
4"It wasn’t even a standard"
5"She’d been called to an"
6"He’d pressed a bone token"
7"The body was sprawled near"
8"It was the *other* body."
9"The skin was too pale,"
10"She crouched, her gloved fingers"
11"The fabric was fine, almost"
12"a voice said from behind"
13"Quinn didn’t flinch."
14"She stood slowly, turning to"
15"He had a notepad in"
16"Whitaker continued, gesturing vaguely at"
17"Quinn’s gaze flicked back to"
18"Whitaker exhaled through his nose,"
19"Quinn ignored the dismissal in"
ratio0.716
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences95
matches
0"Now, standing in the flickering"
1"Because she knew, with a"
ratio0.021
65.22% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences46
technicalSentenceCount5
matches
0"She was already moving, her boots crunching over broken glass and something wetter."
1"The light flickered, casting long shadows that seemed to twist unnaturally."
2"She was already moving, her hand slipping into her satchel."
3"Her fingers closed around the Veil Compass—small, brass, its needle spinning wildly before settling with a sharp *click*."
4"The thing that emerged from the rift was tall, its limbs too long, its skin stretched too tight over bones that didn’t quite fit."
53.57% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags7
uselessAdditionCount1
matches
0"Quinn stood, her voice low"
38.89% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags5
fancyCount2
fancyTags
0"Whitaker continued (continue)"
1"Whitaker muttered (mutter)"
dialogueSentences18
tagDensity0.278
leniency0.556
rawRatio0.4
effectiveRatio0.222
80.2703%