Run: 2026-02-20-01KHXQ129HYDB4V3JV7ZB8QZ6Y

Run Details

Duration:
21.9s
Cost:
$0.004216
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 reeked of damp concrete and something older—something that clung to the back of the throat like rust. Detective Harlow Quinn stepped over the yellow police tape, her boots scuffing against the gritty platform. The air was thick with the hum of fluorescent lights strung up by the forensics team, casting jagged shadows across the peeling posters of long-defunct theatre productions. She adjusted the cuff of her leather watch, the strap worn smooth from years of use, and exhaled through her nose. Another strange one. Another scene that didn’t add up. “You’re late,” DS Tom Whitaker said, not looking up from his notebook. He was hunched over a body—or what was left of one. The victim lay sprawled near the edge of the platform, limbs twisted at unnatural angles, as if he’d been tossed aside by something stronger than gravity. His face was frozen in an expression Harlow had seen too many times: not just fear, but the dawning comprehension of something impossible. “Traffic,” Harlow lied. She’d been standing outside for five minutes, steeling herself. The station’s energy was wrong. Not just the usual weight of death, but something else—something that made the hairs on her arms prickle. She kept her voice level. “What’ve we got?” Whitaker finally looked up, his boyish face creased with the kind of frown that meant he was already leaning toward the easiest explanation. “Male, mid-thirties. No ID, but his prints flagged him as Daniel Mercer—a low-level dealer with ties to the Camden drug trade. Overdose, probably. Fents with a twist.” Harlow crouched beside the body, her sharp jaw tightening. Mercer’s pupils were blown, sure, but his skin wasn’t the waxy gray of an OD. It was mottled, like bruises blooming beneath the surface, and his fingertips—she leaned closer—were blackened, as if burned from the inside out. “He didn’t just OD,” she said. “Look at his hands.” Whitaker shrugged. “New cut. Something cooked wrong. You know how these guys are—always chasing the next high.” Harlow didn’t answer. She reached into her coat pocket and snapped on a pair of latex gloves, then carefully lifted Mercer’s left wrist. The skin there was slick with something dark and viscous, not blood. It smelled metallic, but wrong—like copper left too long in the rain. She wiped a finger against it and held it up to the light. The substance stretched like syrup, iridescent in the harsh glow. “What the hell is that?” Whitaker muttered. “Not heroin.” Harlow stood, stripping off the gloves. “Get me a tox screen, but I’m telling you, this isn’t just another junkie in the wrong place.” She turned in a slow circle, taking in the rest of the platform. The station had been abandoned for decades, but the graffiti here wasn’t the usual tagger scrawl. The symbols etched into the walls were precise, angular—almost like circuit diagrams, if circuits were drawn by someone who understood things that shouldn’t exist. Her fingers twitched. She’d seen something like them before. Three years ago. Morris’s case. She shoved the thought down. “Where’s his stash?” Whitaker jerked his chin toward a crumpled paper bag half-hidden beneath the bench. Harlow knelt again, careful not to touch it directly. Inside, nestled in a bed of torn newspaper, was a small brass compass. Its casing was etched with sigils, the metal pitted with verdigris, the needle quivering as if caught between two poles. She didn’t need to pick it up to know it wasn’t pointing north. Her breath hitched. “Detective?” She ignored Whitaker, her pulse hammering in her throat. The compass was warm, though the station was cold. She could feel it, even through the latex—a low, thrumming vibration, like a live wire humming just beyond hearing. The needle flicked wildly, then settled, pointing toward the far end of the platform, where the tunnel yawned into darkness. Toward the tracks. Harlow stood abruptly. “Where’s the rest of the team?” “Finishing up the sweep. Why?” She didn’t answer. Instead, she walked to the edge of the platform and peered into the tunnel. The rails gleamed dully, but the darkness beyond seemed… thicker. Not just absence of light, but something solid, something that pushed back when she tried to focus on it. Her fingers curled into fists. “Quinn.” Whitaker’s voice was sharp now, uneasy. “What are you looking at?” She didn’t take her eyes off the tunnel. “You ever hear of the Veil Market?” A beat of silence. Then, a nervous laugh. “Christ, not this again. You’re not still on that supernatural kick, are you? After Morris—” “Shut up.” Her voice was low, dangerous. She took a step forward, then another, her boots echoing on the concrete. The compass in the bag pulsed in time with her footsteps. The air grew heavier, pressing against her skin like a physical weight. She could taste ozone now, sharp and electric. Then she saw it. A flicker of movement in the dark. Not a rat, not a trick of the light—a shape, humanoid but wrong, its edges blurring as if it couldn’t quite hold itself together. It was there for a second, then gone, leaving only the faintest shimmer in the air, like heat rising off asphalt. Harlow’s breath came faster. She knew what she was seeing. Knew, and didn’t want to, because knowing meant Morris hadn’t been drunk when he’d sworn he saw shadows moving in the evidence locker. It meant the things he’d whispered in the hospital, his voice raw with terror, weren’t the ravings of a dying man. It meant she’d been wrong for three years. “Detective!” Whitaker’s hand closed around her arm, yanking her back. “What the hell are you doing?” She shook him off, her mind racing. The compass. The symbols. The way Mercer’s body looked like it had been hollowed out from the inside. This wasn’t an overdose. This was a transaction gone wrong. A deal made in a place that wasn’t supposed to exist. A market that moved every full moon. Her watch beeped—midnight. She turned back to the body, her gaze snagging on the paper bag. The compass had stilled, its needle now pointing at Mercer’s chest. At the blackened stain on his shirt. Harlow knelt again, this time ripping open the dead man’s collar. Beneath it, half-hidden by the fabric, was a small bone token strung on a length of frayed twine. She recognized it instantly—the same smooth, yellowed bone she’d seen in Morris’s evidence photos. The same token that had been logged into the property room and vanished the next day. Her fingers trembled as she reached for it. “Quinn, don’t—” She touched the bone. The world tilted. For a second, the station wasn’t abandoned. The walls pulsed with sickly green light, the air thick with the stench of burning herbs and something sweeter, something rotten underneath. The platform teemed with figures—some human, some not—bartering in hushed, guttural tongues. A woman with too many fingers counted out silver coins into a scale balanced on a stall of blackened wood. A man with eyes like polished river stones held up a jar of writhing shadows. And in the center of it all, a figure in a long coat, its face obscured by a wide-brimmed hat, turned toward her. Harlow gasped, jerking her hand back. The vision snapped like a rubber band, leaving her gasping on the cold concrete. The station was empty again. Silent. Whitaker was staring at her like she’d lost her mind. She had. Or she was about to. Because she knew, now, what Morris had been investigating before he died. And she knew she was the only one who could finish it. She stood on shaky legs, tucking the bone token into her pocket before Whitaker could see. “Call it in,” she said, her voice steady despite the adrenaline coursing through her. “Suspected drug-related death. But keep the team out of the tunnel.” Whitaker opened his mouth to argue, but she was already walking away, her mind racing faster than her steps. She needed to find Eva Kowalski. The red-haired researcher had been Morris’s “occult consultant” before his death—before Harlow had dismissed her as a crank, another Oxford grad chasing ghosts for tenure points. She was wrong about a lot of things, it seemed. The compass in the evidence bag pulsed again, its needle now pointing toward the station’s exit. Toward the street. Toward her. Harlow adjusted her watch, the leather strap a familiar comfort against her wrist. The hunt was on. And this time, she wasn’t letting go.
created_at"2026-02-20T14:24:58.683Z" 2/20/2026, 2:24:58 PM
model"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency305
moderation_latency(null)
generation_time21827
tokens_prompt923
tokens_completion2260
native_tokens_prompt875
native_tokens_completion1933
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"
usage0.004216
router(null)
provider_responses
0
endpoint_id"13c5002b-8c5b-490c-8a5f-52ec0242804f"
id"5378befc6b334080bebd2effba320ee4"
is_byokfalse
latency305
model_permaslug"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771597498-9ni3v5o2hJKLXTvvgxcB"
upstream_id"5378befc6b334080bebd2effba320ee4"
total_cost0.004216
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
totalTags9
adverbTagCount1
adverbTags
0"Whitaker’s hand closed around [around]"
dialogueSentences25
tagDensity0.36
leniency0.72
rawRatio0.111
effectiveRatio0.08
96.53% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1441
totalAiIsmAdverbs1
found
0
adverb"carefully"
count1
highlights
0"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)
34.07% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1441
totalAiIsms19
found
0
word"weight"
count2
1
word"etched"
count2
2
word"pulse"
count1
3
word"could feel"
count1
4
word"flicked"
count1
5
word"silence"
count1
6
word"echoing"
count1
7
word"pulsed"
count3
8
word"footsteps"
count1
9
word"electric"
count1
10
word"flicker"
count1
11
word"racing"
count2
12
word"trembled"
count1
13
word"familiar"
count1
highlights
0"weight"
1"etched"
2"pulse"
3"could feel"
4"flicked"
5"silence"
6"echoing"
7"pulsed"
8"footsteps"
9"electric"
10"flicker"
11"racing"
12"trembled"
13"familiar"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"air was thick with"
count1
highlights
0"The air was thick with"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells1
narrationSentences120
matches
0"w with terror"
95.24% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount3
hedgeCount1
narrationSentences120
filterMatches
0"watch"
hedgeMatches
0"tried to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences134
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen31
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1418
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions11
unquotedAttributions0
matches(empty)
98.70% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions39
wordCount1267
uniqueNames10
maxNameDensity1.03
worstName"Harlow"
maxWindowNameDensity2
worstWindowName"Harlow"
discoveredNames
Tube1
Harlow13
Quinn1
Tom1
Whitaker11
Mercer4
Morris5
Eva1
Kowalski1
Oxford1
persons
0"Harlow"
1"Quinn"
2"Tom"
3"Whitaker"
4"Mercer"
5"Morris"
6"Eva"
7"Kowalski"
places
0"Oxford"
globalScore0.987
windowScore1
60.71% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences84
glossingSentenceCount3
matches
0"something like them before"
1"quite hold itself together"
2"looked like it had been hollowed out from"
0.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches5
per1kWords3.526
wordCount1418
matches
0"not just fear, but the dawning comprehension of something impossible"
1"Not just the usual weight of death, but something else"
2"Not just absence of light, but something solid, something"
3"Not a rat, not a trick of the light—a shape, humanoid but wrong, its edges blurring as if it couldn’t quite hold itsel"
4"not a trick of the light—a shape, humanoid but wrong, its edges blurring as if it couldn’t quite hold itsel"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences134
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs49
mean28.94
std27.37
cv0.946
sampleLengths
094
172
243
350
456
517
670
77
888
93
102
118
1268
133
141
1557
163
179
185
1951
2012
2115
2223
2351
244
2552
2654
278
2816
2946
307
3127
327
3359
348
352
364
373
3899
3936
407
4112
4212
4341
4451
4510
4621
4717
487
76.02% Passive voice overuse
Target: ≤2% passive sentences
passiveCount10
totalSentences120
matches
0"was hunched"
1"been tossed"
2"was frozen"
3"were blown"
4"was mottled"
5"were blackened"
6"been abandoned"
7"were drawn"
8"was etched"
9"been hollowed"
10"been logged"
78.23% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs219
matches
0"wasn’t pointing"
1"was seeing"
2"was staring"
3"wasn’t letting"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount14
semicolonCount0
flaggedSentences12
totalSentences134
ratio0.09
matches
0"The abandoned Tube station reeked of damp concrete and something older—something that clung to the back of the throat like rust."
1"He was hunched over a body—or what was left of one."
2"Not just the usual weight of death, but something else—something that made the hairs on her arms prickle."
3"It was mottled, like bruises blooming beneath the surface, and his fingertips—she leaned closer—were blackened, as if burned from the inside out."
4"It smelled metallic, but wrong—like copper left too long in the rain."
5"The symbols etched into the walls were precise, angular—almost like circuit diagrams, if circuits were drawn by someone who understood things that shouldn’t exist."
6"She could feel it, even through the latex—a low, thrumming vibration, like a live wire humming just beyond hearing."
7"Not a rat, not a trick of the light—a shape, humanoid but wrong, its edges blurring as if it couldn’t quite hold itself together."
8"Her watch beeped—midnight."
9"She recognized it instantly—the same smooth, yellowed bone she’d seen in Morris’s evidence photos."
10"The platform teemed with figures—some human, some not—bartering in hushed, guttural tongues."
11"The red-haired researcher had been Morris’s “occult consultant” before his death—before Harlow had dismissed her as a crank, another Oxford grad chasing ghosts for tenure points."
88.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1285
adjectiveStacks2
stackExamples
0"heavier, pressing against her"
1"same smooth, yellowed bone"
adverbCount45
adverbRatio0.03501945525291829
lyAdverbCount10
lyAdverbRatio0.007782101167315175
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences134
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences134
mean10.58
std7.06
cv0.667
sampleLengths
021
116
227
321
43
56
612
711
826
923
103
119
125
1318
145
153
1623
1727
189
1915
2022
216
224
232
2415
253
2620
2712
2812
2913
3010
317
328
3331
3416
3524
363
376
383
392
405
413
4213
439
4413
4520
4613
473
481
499
45.77% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats12
diversityRatio0.3283582089552239
totalSentences134
uniqueOpeners44
91.74% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences109
matches
0"Instead, she walked to the"
1"Then, a nervous laugh."
2"Then she saw it."
ratio0.028
80.55% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount38
totalSentences109
matches
0"She adjusted the cuff of"
1"He was hunched over a"
2"His face was frozen in"
3"She’d been standing outside for"
4"She kept her voice level."
5"It was mottled, like bruises"
6"She reached into her coat"
7"It smelled metallic, but wrong—like"
8"She wiped a finger against"
9"She turned in a slow"
10"Her fingers twitched."
11"She’d seen something like them"
12"She shoved the thought down."
13"Its casing was etched with"
14"She didn’t need to pick"
15"Her breath hitched."
16"She ignored Whitaker, her pulse"
17"She could feel it, even"
18"She didn’t answer."
19"Her fingers curled into fists."
ratio0.349
47.16% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount90
totalSentences109
matches
0"The abandoned Tube station reeked"
1"Detective Harlow Quinn stepped over"
2"The air was thick with"
3"She adjusted the cuff of"
4"Another strange one."
5"Another scene that didn’t add"
6"DS Tom Whitaker said, not"
7"He was hunched over a"
8"The victim lay sprawled near"
9"His face was frozen in"
10"She’d been standing outside for"
11"The station’s energy was wrong."
12"She kept her voice level."
13"Whitaker finally looked up, his"
14"Harlow crouched beside the body,"
15"Mercer’s pupils were blown, sure,"
16"It was mottled, like bruises"
17"Harlow didn’t answer."
18"She reached into her coat"
19"The skin there was slick"
ratio0.826
45.87% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences109
matches
0"Because she knew, now, what"
ratio0.009
51.95% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences55
technicalSentenceCount7
matches
0"The abandoned Tube station reeked of damp concrete and something older—something that clung to the back of the throat like rust."
1"The victim lay sprawled near the edge of the platform, limbs twisted at unnatural angles, as if he’d been tossed aside by something stronger than gravity."
2"Not just the usual weight of death, but something else—something that made the hairs on her arms prickle."
3"Whitaker finally looked up, his boyish face creased with the kind of frown that meant he was already leaning toward the easiest explanation."
4"It was mottled, like bruises blooming beneath the surface, and his fingertips—she leaned closer—were blackened, as if burned from the inside out."
5"The symbols etched into the walls were precise, angular—almost like circuit diagrams, if circuits were drawn by someone who understood things that shouldn’t exi…"
6"Whitaker opened his mouth to argue, but she was already walking away, her mind racing faster than her steps."
13.89% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags9
uselessAdditionCount2
matches
0"DS Tom Whitaker said, not looking up from his notebook"
1"she said, her voice steady despite the adrenaline coursing through her"
70.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags5
fancyCount2
fancyTags
0"Harlow lied (lie)"
1"Whitaker muttered (mutter)"
dialogueSentences25
tagDensity0.2
leniency0.4
rawRatio0.4
effectiveRatio0.16
75.8147%