Run: 2026-07-25-01KYCWHZA7X85094EFWH6WEEN5

Run Details

Duration:
6.8s
Cost:
$0.003295
Provider:
Google AI Studio

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 air down in the abandoned Camden Tube station tasted of copper, damp ballast, and something thick and chemical, like charred bone. Detective Harlow Quinn stood on the soot-stained platform where the tracks had long ago been ripped up, her heavy boots crunching on gravel that glittered oddly under the harsh beam of a constable’s flashlight. Around her, the Metropolitan Police crime scene unit moved like ghosts through the cavernous dark, casting long, distorted shadows against the grimy tiled walls. Harlow didn't care about the shadows. She cared about the corpse sprawled six feet from the edge of the platform. She checked the time, her thumb brushing the worn leather watch on her left wrist. Five minutes past two in the morning. Eighteen years on the force, decorated twice over, and she had never seen a homicide quite like this. The victim was a young man, face frozen in a rictus of terror, chest hollowed out as if a heavy plow had torn right through his ribs. But there was no blood on the ballast. Not a single drop to account for the catastrophic trauma. Sergeant Vance stepped up beside her, holding a styrofoam cup of lukewarm tea that he hadn't touched. Vance was a good copper, thorough and steady, but he had the irritating habit of swallowing the easiest explanation whole. Quiet one tonight, isn't it, Detective? Vance muttered, blowing a plume of white steam into the freezing air. Looks like a turf war gone wrong. Gang initiation, probably. Some local thugs hauled him down here through the maintenance tunnel, carved him up, and dumped the body where it wouldn't be found for weeks. Clean cut, too. Like they used a surgical saw. Harlow didn't look at him. She kept her eyes fixed on the victim's left hand, which was curled rigidly inward. A sharp, calculated line defined her jaw as she studied the placement of the limbs. Surgical saw, Vance? she asked, her voice flat, clipped with military precision. Vance blinked. Well, look at the sternum. Clean edges. No jagged bone fragments. Harlow crouched, bringing her face down to the level of the platform edge. The beam of her torch swept across the concrete, picking out a scattering of small, pale objects half-buried in the grime. They weren't spent casings or cigarette butts. They were knuckle bones, meticulously carved with jagged geometric runes. Look closer, Vance. If a gang of South London dealers dragged a screaming kid down a half-mile of pitch-black subterranean tunnel, where are the drag marks? She pointed her light at the pristine dust layering the tracks behind the body. Footprints there are, sure. Lots of them. But they’re all facing inward, in a circle. And none of them lead back to the maintenance door. It’s like they materialized out of thin air. Vance shifted his weight, his boots grinding on the gravel. People panic, boss. They walk in circles when they're cornered. And the dust down here—it settles thick. It could've drifted over their tracks. Harlow stood up, her five-foot-nine frame towering over the sergeant. She turned her brown eyes on him, sharp and unyielding. Dust doesn't fall upward, Sergeant. And it certainly doesn't fill in boot prints selectively while leaving the victim’s heels suspended two inches above a trough of stagnant water. She walked past him, circling the perimeter of the dead man. Her gaze caught on a faint, shimmering residue coating the damp brickwork behind the platform. It wasn't oil. It had a faint, iridescent violet sheen to it, smelling faintly of ozone and old pennies. It reminded her of something she’d tried to forget for three agonizing years—the damp chill that had settled into the air the night DS Morris vanished from a locked basement in Soho, leaving behind no footprints, no struggle, and no answers. They didn't dump him here, Vance, Harlow said softly, the realization hardening in her chest. This was a threshold. They brought him here to pay a toll. A toll? Vance let out a dry, nervous cough. Come on, Harlow. You've been staring at cold case files for too long. There are no tolls in Camden except the congestion charge. This is a homicide. A brutal, human homicide. Is it? Harlow reached into her trench coat pocket and pulled out a small, heavy object. It was a brass compass with a thick patina of verdigris, its face etched with intricate protective sigils. She didn't flip it open—she didn't need to. The casing was vibrating faintly against her palm, a rapid, frantic ticking sensation like the heartbeat of a trapped bird. It pointed straight down the dead-end tunnel toward the sealed iron gates that led deeper into the subterranean maze beneath the city, toward the rumors the old informants whispered about when they were drunk enough to forget themselves. The Veil Market. Vance stared at the brass instrument in her hand, his brow furrowing. What is that? An antique? It's a reminder that we only see what we're trained to see, Vance, Harlow said, her voice dropping to a dangerous whisper. She pocketed the compass and straightened her posture, the rigid discipline of her service falling back over her like armor. The evidence didn't add up because they weren't playing by the rules of the Metropolitan Police. But if there was one thing Harlow Quinn knew about shadows, it was that they always led back to someone holding a light. Secure the perimeter, she commanded, turning on her heel. And don't let forensics touch those carved bones until I get a proper bag. We're going down the maintenance tunnel.
created_at"2026-07-25T14:58:33.937Z" 7/25/2026, 2:58:33 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency320
moderation_latency(null)
generation_time6745
tokens_prompt896
tokens_completion1397
native_tokens_prompt883
native_tokens_completion1212
native_tokens_completion_images0
native_tokens_reasoning0
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"
usage0.0032949
router(null)
provider_responses
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endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"Gs9karzBA5jVjMcPrZK9mAY"
is_byokfalse
latency320
model_permaslug"google/gemini-3.5-flash-lite-20260721"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784991513-WNq8DKyOzyklWXXcq0oS"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784991513-QorlGHlcy8y3gjBdCqTr"
upstream_id"Gs9karzBA5jVjMcPrZK9mAY"
total_cost0.0032949
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags0
94.65% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount935
totalAiIsmAdverbs1
found
0
adverb"softly"
count1
highlights
0"softly"
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)
51.87% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount935
totalAiIsms9
found
0
word"calculated"
count1
1
word"pristine"
count1
2
word"weight"
count1
3
word"chill"
count1
4
word"etched"
count1
5
word"intricate"
count1
6
word"furrowing"
count1
7
word"reminder"
count1
8
word"whisper"
count1
highlights
0"calculated"
1"pristine"
2"weight"
3"chill"
4"etched"
5"intricate"
6"furrowing"
7"reminder"
8"whisper"
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
narrationSentences82
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences82
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)
analyzedSentences82
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen42
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords932
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions3
unquotedAttributions0
matches(empty)
83.33% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions40
wordCount932
uniqueNames15
maxNameDensity1.18
worstName"Vance"
maxWindowNameDensity2.5
worstWindowName"Vance"
discoveredNames
Camden2
Tube1
Harlow10
Quinn2
Metropolitan2
Police2
Vance11
Detective2
South1
London1
Sergeant2
Morris1
Soho1
Veil1
Market1
persons
0"Harlow"
1"Quinn"
2"Vance"
3"Sergeant"
4"Morris"
places
0"Camden"
1"South"
2"London"
3"Soho"
globalScore0.91
windowScore0.833
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences59
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount932
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences82
matches
0"was that they"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs20
mean46.6
std26.55
cv0.57
sampleLengths
080
120
285
337
462
535
612
713
851
973
1033
1148
1286
1327
1440
15103
1617
1722
1859
1929
88.15% Passive voice overuse
Target: ≤2% passive sentences
passiveCount4
totalSentences82
matches
0"been ripped"
1"was curled"
2"cornered"
3"trained"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs156
matches
0"was vibrating"
1"weren't playing"
38.33% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount0
flaggedSentences3
totalSentences82
ratio0.037
matches
0"And the dust down here—it settles thick."
1"It reminded her of something she’d tried to forget for three agonizing years—the damp chill that had settled into the air the night DS Morris vanished from a locked basement in Soho, leaving behind no footprints, no struggle, and no answers."
2"She didn't flip it open—she didn't need to."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount942
adjectiveStacks0
stackExamples(empty)
adverbCount23
adverbRatio0.024416135881104035
lyAdverbCount10
lyAdverbRatio0.010615711252653927
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences82
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences82
mean11.37
std8.39
cv0.738
sampleLengths
022
134
224
36
414
515
67
718
827
98
1010
1117
1220
136
1412
157
163
1725
183
196
205
2115
2215
233
249
252
265
272
284
2913
3021
317
3210
333
3423
3514
364
373
388
3910
408
4110
423
437
447
456
4610
4710
485
4923
76.42% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.4878048780487805
totalSentences82
uniqueOpeners40
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences77
matches(empty)
ratio0
90.13% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount25
totalSentences77
matches
0"She cared about the corpse"
1"She checked the time, her"
2"She kept her eyes fixed"
3"she asked, her voice flat,"
4"They weren't spent casings or"
5"They were knuckle bones, meticulously"
6"She pointed her light at"
7"It’s like they materialized out"
8"They walk in circles when"
9"It could've drifted over their"
10"She turned her brown eyes"
11"She walked past him, circling"
12"Her gaze caught on a"
13"It wasn't oil."
14"It had a faint, iridescent"
15"It reminded her of something"
16"They didn't dump him here,"
17"They brought him here to"
18"You've been staring at cold"
19"It was a brass compass"
ratio0.325
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount54
totalSentences77
matches
0"The air down in the"
1"Detective Harlow Quinn stood on"
2"Harlow didn't care about the"
3"She cared about the corpse"
4"She checked the time, her"
5"The victim was a young"
6"Sergeant Vance stepped up beside"
7"Vance was a good copper,"
8"Vance muttered, blowing a plume"
9"Looks like a turf war"
10"Gang initiation, probably."
11"Some local thugs hauled him"
12"Harlow didn't look at him."
13"She kept her eyes fixed"
14"A sharp, calculated line defined"
15"she asked, her voice flat,"
16"Harlow crouched, bringing her face"
17"The beam of her torch"
18"They weren't spent casings or"
19"They were knuckle bones, meticulously"
ratio0.701
64.94% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences77
matches
0"If a gang of South"
ratio0.013
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences41
technicalSentenceCount2
matches
0"Detective Harlow Quinn stood on the soot-stained platform where the tracks had long ago been ripped up, her heavy boots crunching on gravel that glittered oddly…"
1"It reminded her of something she’d tried to forget for three agonizing years—the damp chill that had settled into the air the night DS Morris vanished from a lo…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags0
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags0
89.5940%