Run: 2026-10-07-01M4ATW9MNBEXXNNS9H6PM8QEX

Run Details

Duration:
2m 59s
Cost:
$0.015845
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
Detective Harlow Quinn counted the steps as she descended into the dark. One hundred and forty-seven. The same number as yesterday, though the stairs had shifted, the geography of the abandoned Camden Tube station rearranging itself under her boots like a deck of cards. She touched the leather strap of her watch—her left wrist, always—and felt the familiar tick against her pulse. Three years, four months, and eleven days since Morris had vanished into a case that shouldn't have existed, and she still counted steps like this, measuring the world for solidity. The bone token in her pocket grew warm against her thigh. It had cost her a favor and three hundred quid, but entry was entry. At the bottom, the platform stretched before her, a cathedral of Victorian tile and rusted iron, repurposed into something the Metropolitan Police didn't acknowledge in any file. The Veil Market. Stalls huddled beneath flickering gas lamps that burned violet and green, their wares glinting—crystals that hummed, vials of liquid starlight, grimoires bound in skin that wasn't quite leather. But the market was silent. No haggle of voices. No clink of enchanted coin. Only the drip of water from somewhere in the dark, and the low thrum of the Northern Line grinding overhead, a mechanical heartbeat that didn't belong. Quinn's hand drifted to her service weapon, though she knew silver bullets were useless here. The body lay near the eastern platform, slumped against a stall that sold tinctures and curses. A man. Mid-forties, dressed in a Savile Row suit now dark with something that might have been blood, or might have been the shadow of the stall's awning. His face was turned away, but she saw the spread of crimson beneath him, pooling in the grout between the tiles. "Don't touch him." The voice came from Quinn's left. She didn't turn, her eyes cataloging the scene with the precision of a soldier clearing a room. Five feet four, curly red hair catching the violet light, round glasses perched on a freckled nose. Eva Kowalski. The occult researcher. The girl who knew too much about the things that went bump in London's underbelly. Quinn stood five inches taller, her salt-and-pepper hair cropped close to her skull, her bearing rigid with military precision. "I wasn't planning to," Quinn said. She did anyway, kneeling—not crouching, kneeling, military style, one knee down, the other foot flat, weight balanced. Her coat brushed the damp floor. "You're early, Eva. Or late. Depending on when he died." Eva stood over the body, her worn leather satchel slung across her chest, books spilling from the flap like the entrails of some bibliophilic beast. She tucked a strand of red hair behind her left ear—a nervous habit Quinn had noted in three previous interviews—and adjusted her glasses. "He was a trader. Argent something. Selling nightshade extract to a... a client. Bad batch. Overdose." She said it flatly, the way people recite lines they've prepared. Quinn examined the body. The suit was expensive, but the shoes were scuffed. The hands were clean, manicured, no calluses from labor. Not a dealer's hands. She checked the pockets. Empty. No wallet, no phone, no bone token—strange, since you needed one to get down here. She lifted the man's wrist. The skin was cold, but not rigor-stiff. Dead maybe two hours. No more. "Overdose," Quinn repeated, tasting the word. "You'd know about overdoses, wouldn't you? Working with poisons at the Museum." Eva flinched. The hair-tuck again. "I research historical toxicology. Not... not recreational chemistry." "Then explain the blood." Quinn pointed. The crimson pool wasn't spreading. It sat on the tiles like a placid, too-perfect mirror, reflecting the violet lamps above without a ripple. Real blood pooled, seeped, coagulated. This looked painted. Or poured. And the spatter—Quinn moved closer, her breath shallow—there was none. No arterial spray on the wall behind him. No cast-off on his sleeve. Just the pool, contained, theatrical. "The body was moved," Quinn said. Not a question. Eva's hand went to her satchel. "He fell. The platform is uneven. He hit his head on the edge of the stall. Look." She pointed to a dark smudge on the iron bracket. Too small. Too dark. Not consistent with a fatal head wound. "He was killed elsewhere," Quinn said. "Brought here. Arranged." She stood, brushing dust from her knees, her sharp jaw set. "You know that, Eva. You've been kneeling here for twenty minutes. You've touched the body. You're contaminating evidence, and you're scared." "I'm not scared." But she was. Quinn saw the pulse flutter in Eva's throat, the way her fingers worried the leather strap of the satchel. "It's... it's a ritual killing. Or a summoning gone wrong. The Market has rules, Detective. If someone breaks them..." "Rules." Quinn laughed, a short, barking sound that echoed off the tiles. "I've spent eighteen years learning rules, Eva. And I've learned that when a scene doesn't add up, someone's lying." She walked to the center of the pool, careful not to step in it, and retrieved something glinting from the edge. Brass, small, verdigris blooming across the casing like mold. A compass. The face was etched with sigils that hurt to look at directly, protective wards twisting in geometric patterns. The Veil Compass. It pointed toward the nearest supernatural rift, according to the whispers Quinn had gathered in her investigation. She turned it over. A Shade artisan's work. Expensive. Rare. The needle was spinning. Not pointing north. Not pointing toward any rift Quinn could sense. Spinning in lazy, drunken circles, then snapping—violent, sudden—to point directly at the dead man's chest. At the still heart beneath the bloodstained shirt. "That's impossible," Eva whispered. She had gone pale, the freckles standing out stark against her skin. "It should point to the rift. It always points to the rift." "It's pointing to him," Quinn said. Her voice had gone flat, the register she used when she'd found Morris's notebook, three years ago, filled with sketches of the same sigils, the same geometric patterns. "Or he's pointing to something inside him." Quinn knelt again. She didn't need gloves—she'd stopped wearing them years ago, after Morris. She reached into the man's breast pocket. Her fingers closed around something cold and smooth. A vial. Glass, dark, containing a liquid that moved against gravity, swirling upward when she tilted it. Eva made a sound, a strangled gasp. "Don't open it. If you open it, it—" Too late. Quinn had the stopper out. The smell hit her—ozone and grave dirt and the particular copper scent of Morris's last crime scene, the one in the warehouse in Limehouse where the walls had been painted with symbols and the victim had been found standing up, eyes wide, heart stopped, as if something had reached inside and turned off the light. The liquid didn't spill. It rose, defying physics, coalescing into a sphere that hovered above the vial. And from it, Quinn heard Morris's voice, or thought she did, or perhaps just the memory of his voice, saying: It's not a murder, Harlow. It's a message. The compass needle snapped again, pointing not at the body, not at the sphere, but at Eva. Eva stumbled back, her satchel hitting the ground, books scattering. "I didn't know," she said, and her voice cracked. "I swear, I didn't know what he was carrying. I thought it was just a transaction. A delivery." Quinn stood. The sphere of liquid hovered between them, humming. She looked at Eva—the green eyes wide, the red hair disheveled, the fear real and unfeigned—and then at the body, which was beginning to twitch, the fingers curling, the chest rising in a shallow, wet breath. The overdose. The staging. The blood that hadn't behaved like blood. "It's not a killing," Quinn said, understanding crystallizing in her mind with terrible clarity. "It's a handoff. And you're the receiver, Eva. Or you were supposed to be." The body's eyes snapped open. They were brown. Not the blue of the man's driver's license photo, which Eva had shown her ten minutes ago, smiling, alive, meeting her for drinks at the British Museum café. Brown eyes, flecked with gold, staring up at the ceiling of the abandoned station. Quinn stepped back, her hand on her weapon, as the Veil Compass spun wildly, the sigils flaring with verdigris light, and the sphere of liquid above the body began to turn, pointing, waiting, hungry.
created_at"2026-10-07T09:24:57.119Z" 10/7/2026, 9:24:57 AM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency672
moderation_latency(null)
generation_time178525
tokens_prompt896
tokens_completion7861
native_tokens_prompt858
native_tokens_completion7302
native_tokens_completion_images(null)
native_tokens_reasoning5714
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.01584462
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791365097-1yLr0iJHJSp41IRhtIDx"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791365097-vH5QiGuZKhl9RzGIFUAX"
upstream_id"b34686c3e2944822ae5b02fa61f170ca"
provider_responses
0
endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id"b34686c3e2944822ae5b02fa61f170ca"
is_byokfalse
latency659
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.01584462
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags13
adverbTagCount0
adverbTags(empty)
dialogueSentences26
tagDensity0.5
leniency1
rawRatio0
effectiveRatio0
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1415
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
57.60% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1415
totalAiIsms12
found
0
word"familiar"
count1
1
word"pulse"
count2
2
word"glinting"
count2
3
word"mechanical"
count1
4
word"weight"
count1
5
word"perfect"
count1
6
word"echoed"
count1
7
word"etched"
count1
8
word"stark"
count1
9
word"grave"
count1
highlights
0"familiar"
1"pulse"
2"glinting"
3"mechanical"
4"weight"
5"perfect"
6"echoed"
7"etched"
8"stark"
9"grave"
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
narrationSentences116
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences116
filterMatches
0"watch"
hedgeMatches
0"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences128
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen56
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1400
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions13
unquotedAttributions0
matches(empty)
50.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions63
wordCount1179
uniqueNames23
maxNameDensity1.95
worstName"Quinn"
maxWindowNameDensity3.5
worstWindowName"Quinn"
discoveredNames
Harlow2
Quinn23
Camden1
Tube1
Morris5
Victorian1
Metropolitan1
Police1
Veil3
Market1
Northern1
Line1
Savile1
Row1
Kowalski1
London1
Eva11
Brass1
Compass2
Shade1
Limehouse1
British1
Museum1
persons
0"Harlow"
1"Quinn"
2"Morris"
3"Police"
4"Line"
5"Kowalski"
6"Eva"
7"Compass"
places
0"Savile"
1"London"
2"Limehouse"
3"British"
globalScore0.525
windowScore0.5
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences63
glossingSentenceCount1
matches
0"quite leather"
57.14% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.429
wordCount1400
matches
0"not at the body, not at the sphere, but at Eva"
1"not at the sphere, but at Eva"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences128
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs33
mean42.42
std27.37
cv0.645
sampleLengths
092
183
25
335
480
53
679
739
875
964
1018
1113
124
1363
149
1544
1641
1744
18111
194
2034
2128
2241
2346
2415
2562
2645
2717
2837
2957
3028
3150
3234
93.16% Passive voice overuse
Target: ≤2% passive sentences
passiveCount4
totalSentences116
matches
0"was turned"
1"were scuffed"
2"was etched"
3"been painted"
4"been found"
98.48% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs197
matches
0"wasn't spreading"
1"was spinning"
2"was beginning"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount15
semicolonCount0
flaggedSentences10
totalSentences128
ratio0.078
matches
0"She touched the leather strap of her watch—her left wrist, always—and felt the familiar tick against her pulse."
1"Stalls huddled beneath flickering gas lamps that burned violet and green, their wares glinting—crystals that hummed, vials of liquid starlight, grimoires bound in skin that wasn't quite leather."
2"She did anyway, kneeling—not crouching, kneeling, military style, one knee down, the other foot flat, weight balanced."
3"She tucked a strand of red hair behind her left ear—a nervous habit Quinn had noted in three previous interviews—and adjusted her glasses."
4"No wallet, no phone, no bone token—strange, since you needed one to get down here."
5"And the spatter—Quinn moved closer, her breath shallow—there was none."
6"Spinning in lazy, drunken circles, then snapping—violent, sudden—to point directly at the dead man's chest."
7"She didn't need gloves—she'd stopped wearing them years ago, after Morris."
8"The smell hit her—ozone and grave dirt and the particular copper scent of Morris's last crime scene, the one in the warehouse in Limehouse where the walls had been painted with symbols and the victim had been found standing up, eyes wide, heart stopped, as if something had reached inside and turned off the light."
9"She looked at Eva—the green eyes wide, the red hair disheveled, the fear real and unfeigned—and then at the body, which was beginning to twitch, the fingers curling, the chest rising in a shallow, wet breath."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1202
adjectiveStacks0
stackExamples(empty)
adverbCount33
adverbRatio0.02745424292845258
lyAdverbCount7
lyAdverbRatio0.005823627287853577
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences128
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences128
mean10.94
std9.51
cv0.87
sampleLengths
012
14
228
318
430
511
614
727
83
928
105
114
125
1326
1415
1516
162
1726
1821
193
206
2117
2217
232
243
2515
2619
276
2817
296
3010
3125
3223
3327
344
359
369
374
384
391
4015
415
427
434
442
456
4612
472
483
498
45.05% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats14
diversityRatio0.3359375
totalSentences128
uniqueOpeners43
70.92% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences94
matches
0"Only the drip of water"
1"Just the pool, contained, theatrical."
ratio0.021
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount26
totalSentences94
matches
0"She touched the leather strap"
1"It had cost her a"
2"His face was turned away,"
3"She didn't turn, her eyes"
4"She did anyway, kneeling—not crouching,"
5"Her coat brushed the damp"
6"She tucked a strand of"
7"She said it flatly, the"
8"She checked the pockets."
9"She lifted the man's wrist."
10"It sat on the tiles"
11"She pointed to a dark"
12"She stood, brushing dust from"
13"She walked to the center"
14"It pointed toward the nearest"
15"She turned it over."
16"She had gone pale, the"
17"Her voice had gone flat,"
18"She didn't need gloves—she'd stopped"
19"She reached into the man's"
ratio0.277
98.30% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount68
totalSentences94
matches
0"Detective Harlow Quinn counted the"
1"The same number as yesterday,"
2"She touched the leather strap"
3"The bone token in her"
4"It had cost her a"
5"The Veil Market."
6"Stalls huddled beneath flickering gas"
7"Quinn's hand drifted to her"
8"The body lay near the"
9"His face was turned away,"
10"The voice came from Quinn's"
11"She didn't turn, her eyes"
12"The occult researcher."
13"The girl who knew too"
14"Quinn stood five inches taller,"
15"She did anyway, kneeling—not crouching,"
16"Her coat brushed the damp"
17"Eva stood over the body,"
18"She tucked a strand of"
19"She said it flatly, the"
ratio0.723
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences94
matches(empty)
ratio0
0.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences40
technicalSentenceCount10
matches
0"Stalls huddled beneath flickering gas lamps that burned violet and green, their wares glinting—crystals that hummed, vials of liquid starlight, grimoires bound …"
1"Only the drip of water from somewhere in the dark, and the low thrum of the Northern Line grinding overhead, a mechanical heartbeat that didn't belong."
2"The body lay near the eastern platform, slumped against a stall that sold tinctures and curses."
3"Mid-forties, dressed in a Savile Row suit now dark with something that might have been blood, or might have been the shadow of the stall's awning."
4"The face was etched with sigils that hurt to look at directly, protective wards twisting in geometric patterns."
5"Glass, dark, containing a liquid that moved against gravity, swirling upward when she tilted it."
6"The smell hit her—ozone and grave dirt and the particular copper scent of Morris's last crime scene, the one in the warehouse in Limehouse where the walls had b…"
7"It rose, defying physics, coalescing into a sphere that hovered above the vial."
8"Eva stumbled back, her satchel hitting the ground, books scattering."
9"She looked at Eva—the green eyes wide, the red hair disheveled, the fear real and unfeigned—and then at the body, which was beginning to twitch, the fingers cur…"
86.54% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags13
uselessAdditionCount1
matches
0"Quinn said, understanding crystallizing in her mind with terrible clarity"
34.62% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags10
fancyCount3
fancyTags
0"Quinn repeated (repeat)"
1"Quinn laughed (laugh)"
2"Eva whispered (whisper)"
dialogueSentences26
tagDensity0.385
leniency0.769
rawRatio0.3
effectiveRatio0.231
79.7269%