Run: 2026-02-20-01KHYA3QRQA35W2M6BHGJRN66R

Run Details

Duration:
6.5s
Cost:
$0.000308
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 beneath Camden had long since surrendered to the damp, but the air here was thicker than usual—sticky with the scent of wet stone and something else, something metallic and faintly sweet, like old coins left in a rain barrel. Detective Harlow Quinn adjusted the cuffs of her jacket as she stepped over the yellow police tape, her boots squelching in the muck. The fluorescent lights above buzzed weakly, casting long shadows that stretched like skeletal fingers across the cracked concrete. This wasn’t just another crime scene. This was a place where the rules didn’t apply. Eva Kowalski stood near the far wall, her round glasses reflecting the sickly glow of the emergency lights. She tucked a strand of curly red hair behind her ear, her freckled cheeks flushed with tension. “You’re late,” she said without looking up, her voice tight. “They found him an hour ago.” Harlow exhaled through her nose, her sharp jaw clenching. “I was tied up with a report.” She nodded toward the body sprawled on the platform tracks. A man in a rumpled suit, his tie askew, his face frozen in an expression of shock. The coroner’s tape fluttered around his neck like a noose of its own. “Who is he?” “Daniel Mercer,” Eva said, finally meeting her gaze. “Heard of him? Used to work for the Museum’s restricted archives. Disappeared two nights ago. They found him like this.” Harlow crouched beside the body, her gloved fingers brushing the man’s wrist. No pulse. No sign of struggle—just the way he’d been left. She turned her attention to the ground. Scuff marks. A single boot print, half-covered in mud. Too large to be hers. “No defensive wounds,” she murmured. “No signs of a fight.” Eva frowned. “You think he was taken?” “Not taken.” Harlow’s voice was low, precise. “He was *placed* here.” She stood, brushing dirt from her knees. “Look at the tracks. They’re too clean. No drag marks. No resistance.” She gestured to the platform. “And the position—he’s not just lying down. He’s *set* down. Like a statue.” Eva hesitated, then followed her gaze. “You think someone moved him after he died?” “Or before.” Harlow’s eyes flicked to the shadows beneath the platform. “Or neither.” She pulled a small brass compass from her pocket, its casing etched with sigils, the needle twitching restlessly. The Veil Compass. A gift from someone who knew better than to trust the surface world. She flipped it open, the needle spinning wildly before settling on a point just beyond the edge of the platform. “There’s something here,” she said. “Something that doesn’t belong.” Eva’s breath hitched. “You’re not serious.” “Dead serious.” Harlow stepped forward, her boots crunching over something small and brittle beneath her soles. A bone token. The kind used to gain entry to the Veil Market. She pocketed it without a word. “This isn’t a human crime scene. It’s a *supernatural* one.” Eva’s fingers tightened around the strap of her satchel. “You can’t say that.” “Watch me.” Harlow crouched again, this time near the edge of the platform. The tracks curved unnaturally, as if something had dragged itself beneath the surface. “See these marks? They’re not from a body. They’re from *something else*.” She traced a finger along the grooves, feeling the faint impression of claws. “And look at the dirt. It’s not just mud. There’s something in it—something *wrong*.” Eva swallowed hard. “You’re saying he was killed by something from the Veil.” “Or he was *taken* by it.” Harlow stood, her gaze sweeping over the scene. “And then brought back.” She pulled out her phone, snapping photos of the tracks, the body, the strange markings in the dirt. “We need to get this to Forensics. But we also need to get this to *someone* who knows what the hell is happening.” Eva’s voice was barely above a whisper. “You think it’s connected to the clique?” Harlow didn’t answer. She didn’t have to. The clique. The group of occult researchers and collectors who operated in the shadows of London’s elite. The ones who knew too much. The ones who might have known Daniel Mercer. She turned back to the body, her jaw set. “Mercer wasn’t just a researcher. He was digging into something. Something that got him killed.” She crouched beside him again, her fingers brushing the man’s jacket pocket. Her touch lingered. “And whatever it was, it’s still here.” A sharp *click* echoed through the station. Both women froze. The sound came from the shadows beneath the platform. Something shifted. Something moved. Eva’s breath came fast. “Harlow—” “Stay back.” Harlow’s voice was steel. She stepped forward, her hand resting on the grip of her sidearm. “Whatever this is, it’s not alone.” The shadows beneath the platform rippled. A low, guttural sound vibrated through the air—something between a growl and a whisper. The needle on the Veil Compass spun wildly, its sigils glowing faintly in the dark. Harlow didn’t hesitate. She lunged.
created_at"2026-02-20T19:58:29.153Z" 2/20/2026, 7:58:29 PM
model"mistralai/ministral-8b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency448
moderation_latency(null)
generation_time6268
tokens_prompt923
tokens_completion1355
native_tokens_prompt875
native_tokens_completion1178
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"
usage0.00030795
router(null)
provider_responses
0
endpoint_id"c85d26e1-1e0c-449b-9775-2afce7ae510b"
id"7f62c6be03e24af1b30618712cc70090"
is_byokfalse
latency448
model_permaslug"mistralai/ministral-8b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771617509-fhG3Ec0Qxu7mcMdKcnfS"
upstream_id"7f62c6be03e24af1b30618712cc70090"
total_cost0.00030795
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
totalTags15
adverbTagCount1
adverbTags
0"Harlow crouched again [again]"
dialogueSentences35
tagDensity0.429
leniency0.857
rawRatio0.067
effectiveRatio0.057
94.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount833
totalAiIsmAdverbs1
found
0
adverb"barely above a whisper"
count1
highlights
0"barely above a whisper"
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)
33.97% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount833
totalAiIsms11
found
0
word"tension"
count1
1
word"clenching"
count1
2
word"fluttered"
count1
3
word"pulse"
count1
4
word"flicked"
count1
5
word"etched"
count1
6
word"traced"
count1
7
word"whisper"
count2
8
word"echoed"
count1
9
word"vibrated"
count1
highlights
0"tension"
1"clenching"
2"fluttered"
3"pulse"
4"flicked"
5"etched"
6"traced"
7"whisper"
8"echoed"
9"vibrated"
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
narrationSentences67
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount1
narrationSentences67
filterMatches(empty)
hedgeMatches
0"try to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences85
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen44
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans8
markdownWords9
totalWords827
ratio0.011
matches
0"placed"
1"set"
2"supernatural"
3"something else"
4"wrong"
5"taken"
6"someone"
7"click"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions9
unquotedAttributions0
matches(empty)
57.72% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions33
wordCount596
uniqueNames12
maxNameDensity1.85
worstName"Harlow"
maxWindowNameDensity2.5
worstWindowName"Harlow"
discoveredNames
Tube1
Camden1
Harlow11
Quinn1
Kowalski1
Eva9
Veil3
Compass2
Market1
London1
Daniel1
Mercer1
persons
0"Camden"
1"Harlow"
2"Quinn"
3"Kowalski"
4"Eva"
5"Compass"
6"Daniel"
7"Mercer"
places
0"Veil"
1"London"
globalScore0.577
windowScore0.833
93.18% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences44
glossingSentenceCount1
matches
0"something between a growl and a whisper"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount827
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences85
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs23
mean35.96
std27.89
cv0.776
sampleLengths
099
151
259
328
454
57
648
714
876
96
1045
1113
1265
1313
1459
1514
1684
1723
185
1924
2035
213
222
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences67
matches
0"been left"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs96
matches(empty)
42.02% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount0
flaggedSentences3
totalSentences85
ratio0.035
matches
0"The abandoned Tube station beneath Camden had long since surrendered to the damp, but the air here was thicker than usual—sticky with the scent of wet stone and something else, something metallic and faintly sweet, like old coins left in a rain barrel."
1"No sign of struggle—just the way he’d been left."
2"A low, guttural sound vibrated through the air—something between a growl and a whisper."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount600
adjectiveStacks0
stackExamples(empty)
adverbCount23
adverbRatio0.03833333333333333
lyAdverbCount12
lyAdverbRatio0.02
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences85
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences85
mean9.73
std7.19
cv0.739
sampleLengths
043
123
218
36
49
518
617
710
86
99
1017
1117
1213
133
148
1520
1612
172
189
197
202
217
225
235
245
252
265
277
2811
2917
3013
316
328
3311
3420
353
3613
3720
385
394
403
413
4216
433
4410
456
4610
479
484
4913
53.33% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats8
diversityRatio0.3764705882352941
totalSentences85
uniqueOpeners32
57.47% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences58
matches
0"Too large to be hers."
ratio0.017
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount16
totalSentences58
matches
0"She tucked a strand of"
1"she said without looking up,"
2"She nodded toward the body"
3"She turned her attention to"
4"She stood, brushing dirt from"
5"She gestured to the platform"
6"She pulled a small brass"
7"She flipped it open, the"
8"She pocketed it without a"
9"She traced a finger along"
10"She pulled out her phone,"
11"She didn’t have to."
12"She turned back to the"
13"She crouched beside him again,"
14"Her touch lingered."
15"She stepped forward, her hand"
ratio0.276
0.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount56
totalSentences58
matches
0"The abandoned Tube station beneath"
1"Detective Harlow Quinn adjusted the"
2"The fluorescent lights above buzzed"
3"This wasn’t just another crime"
4"This was a place where"
5"Eva Kowalski stood near the"
6"She tucked a strand of"
7"she said without looking up,"
8"Harlow exhaled through her nose,"
9"She nodded toward the body"
10"A man in a rumpled"
11"The coroner’s tape fluttered around"
12"Eva said, finally meeting her"
13"Harlow crouched beside the body,"
14"She turned her attention to"
15"A single boot print, half-covered"
16"Harlow’s voice was low, precise"
17"She stood, brushing dirt from"
18"She gestured to the platform"
19"Eva hesitated, then followed her"
ratio0.966
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences58
matches(empty)
ratio0
58.82% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences17
technicalSentenceCount2
matches
0"The fluorescent lights above buzzed weakly, casting long shadows that stretched like skeletal fingers across the cracked concrete."
1"The group of occult researchers and collectors who operated in the shadows of London’s elite."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags15
uselessAdditionCount4
matches
0"she said, her voice tight"
1"She pulled, its casing etched with sigils, the needle twitching restlessly"
2"Harlow stood, her gaze sweeping over the scene"
3"She crouched, her fingers brushing the man’s jacket pocket"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags4
fancyCount1
fancyTags
0"she murmured (murmur)"
dialogueSentences35
tagDensity0.114
leniency0.229
rawRatio0.25
effectiveRatio0.057
79.6839%