NC Bench
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Run: 2026-02-17-01KHMR3SRNS3PJVWMBGP23BEBX
Run Details
Model:
Gemini 2.5 Flash
Test:
Bad Writing Habits
Scenario:
Thriller: chase through city streets
Duration:
7.9s
Cost:
$0.003973
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="4417" name="Tomás Herrera" aliases="Tommy, Tomás, Herrera" pronouns="he/him" species="Human" storyRole="Support"> <eyeColor>warm brown</eyeColor> <hair>short curly dark brown</hair> <height>5'10"</height> <age>29</age> <skinTone>olive skin</skinTone> <scar>scar running along his left forearm from a knife attack</scar> <medallion>Saint Christopher medallion around his neck</medallion> <birthplace>Seville, Spain</birthplace> <description>A former paramedic who provides off-the-books medical care for the clique.</description> <backstory>Born in Seville, Spain. He moved to London to work for the NHS but lost his license after administering unauthorized treatments to supernatural patients.</backstory> </character> <location id="854" name="The Raven's Nest" aliases="the Nest, Raven, Silas' bar" realm="Earth"> <signColor>distinctive green neon sign above the entrance</signColor> <secretRoom>hidden back room accessible through a bookshelf, used for clandestine meetings</secretRoom> <description>A dimly lit bar in Soho, London. The walls are covered with old maps and black-and-white photographs.</description> </location> <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> </codex> Write a fully fleshed out scene of at least 1000 words in the thriller genre. A detective is pursuing a suspect through rain-soaked city streets at night. The chase takes them from the street level down into an underground market. The detective must decide whether to follow the suspect into unfamiliar and potentially dangerous territory. 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
Messages
Meta
AI
The rain lashed down, a cold curtain of water blurring the neon glow of Soho. Detective Harlow Quinn, her closely cropped salt-and-pepper hair plastered to her scalp, pushed through the deluge. Each stride of her 5'9" frame was precise, a soldier’s pace hammered into her by years of the Met. The worn leather
watch
on her left wrist, a ghost from another life, pressed against her skin. Three years. Three years since Morris, and tonight, the familiar tightness in her jaw meant she was close to something. Up ahead, a flash of short, curly dark brown hair – a
glint
off a Saint Christopher medallion. Tomás Herrera. The former paramedic, the off-the-books healer to London’s hidden. Quinn’s gut clenched. She knew his type: always on the edge of something illicit, always with a good reason. But good reasons didn’t explain the bodies that were turning up, the strange energy signatures her forensics teams were starting to flag. Herrera darted into an alley, his olive skin slick with rain. Quinn didn't hesitate, surging after him. The puddles in the alley were deep, splashing cold water over her shoes. The air stank of damp refuse and something coppery, like old blood. She ignored it, her focus locked on the retreating figure of Herrera. He moved with a practiced agility, dodging overflowing bins and loose bricks. Her uniform, heavy with rain, clung to her, but her military precision never faltered. He wasn’t running like a common criminal. He was running like someone who knew the city’s underbelly, someone who had
navigated
these shadowed paths many times before. He flung himself through a narrow gap between two overflowing dumpsters, a shortcut Quinn hadn't anticipated. She slammed into the wet brick, grimacing. The gap was too tight, even for her lean frame. She wheeled around, her keen eyes scanning. There. A service door, half-hidden by a overflowing skip,
slightly
ajar. She kicked it open. Darkness greeted her, thick and musty. A narrow stairwell descended into the earth, the stone steps slick and treacherous. A faint, earthy smell drifted up, mingling with the metallic tang of something alien. Herrera’s
footsteps
, though faint,
echoed
below. Quinn descended, her hand gripping the cold, damp banister. The sounds of the city faded, replaced by the drip, drip of water somewhere in the shadows, and her own pounding heart. Her hand instinctively went to her sidearm, a reassuring
weight
. She was a detective with eighteen years on the job, but this felt different. This felt like the cases Morris had
started to
whisper about, the ones that made her dismiss him as stressed, overworked. Now, she wondered if he’d simply seen it first. The stairs opened into a vast,
echoing
space. It was an abandoned Tube station, the air thick with the smell of damp earth and something else, something sweet and cloying. Murmurs, hushed conversations, drifted from the depths. Flickering lights – not electric, but the unsteady glow of oil lamps and torches – cast long,
dancing
shadows across what had once been a platform. The abandoned Tube station beneath Camden. She’d heard the whispers. The Veil Market. A place for forbidden goods, for forbidden people. And forbidden knowledge. Her sharp jaw tightened. This was far beyond unauthorized medical treatments. This was the rabbit hole Morris had fallen down. She moved
cautiously
, hugging the wall. Her keen brown eyes scanned the chaotic scene. Stalls made of salvaged wood and tarpaulins lined the platforms, displaying an array of bizarre and unsettling wares. Jars of shimmering dust,
intricate
metalwork that
seemed to
writhe with an inner light, bundles of dried herbs whose scent was
utterly
alien. Faces, half-hidden by hoods and shadows, moved through the throng. Some were human, yes, but others… she wasn’t sure. Their eyes gleamed with an unnerving intensity in the gloom. Then she saw him. Tomás Herrera, his dark brown hair still slick with rain, stood at a stall where a figure with an unnaturally pale complexion was displaying what looked like rows of carved bone tokens. The
glint
of his Saint Christopher medallion was a
beacon
in the gloom. He was haggling, his voice low, urgent. His scar, the faint line along his left forearm from a knife attack she’d read in his file, was visible as he gestured. Quinn leaned back against the rough concrete wall, trying to blend into the shadows. Her gaze lingered on the bone tokens. She knew what they were. An entry requirement. A key to this particular iteration of the Veil Market, which moved locations every full moon. Morris had mentioned them, in passing, before he’d disappeared. A chill, colder than the rain, snaked its way down her spine. Her sensible uniform felt
utterly
out of place, her badge a useless piece of metal. This was not the London she knew, the one she policed. This was something else entirely. Something ancient, something dangerous. Herrera finished his transaction, tucking a small, pouch-like object into his pocket. He turned, his gaze sweeping the crowd. For a terrifying moment, his eyes
seemed to
lock with hers, even though she was sure she was hidden.
A flicker of recognition
, then he was moving, melting into the throng of market-goers. Quinn pushed herself off the wall. She had a choice. Walk away, retreat back to the relative sanity of the rain-swept streets, and report a chase that had led her to a fantastical underground market she couldn’t even explain. Or, she could follow. The air in the market pressed in on her, a
cacophony
of strange languages, the hiss and crackle of unseen energies, the pungent smell of unknown substances. She was out of her depth. This wasn’t a mugging, or a drug deal gone wrong. This was a world she hadn’t known existed, a world her partner had died trying to understand. Her hand tightened on her sidearm. She was a detective. She pursued the truth, no matter where it led. And the truth, she realized, was down here. Here, in the
flicker
ing torchlight, among the hushed whispers and the unsettling array of enchanted goods. She took a deep breath, the stale air filling her lungs. The salt-and-pepper hair, the sharp jaw, the
unwavering
bearing—all of it spoke of a woman who didn't back down. The whispers, the strange faces, the overwhelming sense of the
uncanny
—she pushed it all aside. Her brown
eyes narrowed
, scanning the crowd for a glimpse of Herrera. She had to know. For Morris. For whatever was happening in her city, under her nose. Quinn stepped into the heart of the Veil Market, the sounds of her world fading behind her, replaced by the unsettling hum of this new, terrifying one. She was hunting. And she knew, with a certainty that chilled her to the bone, that she herself was now being hunted by something she couldn’t possibly comprehend.
created_at
"2026-02-17T02:50:55.40553+00:00"
2/17/2026, 2:50:55 AM
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
268
moderation_latency
(null)
generation_time
7886
tokens_prompt
914
tokens_completion
1744
native_tokens_prompt
852
native_tokens_completion
1487
native_tokens_completion_images
0
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"STOP"
usage
0.0039731
router
(null)
provider_responses
0
status
200
is_byok
false
latency
267
endpoint_id
"16c01e26-9b91-4d22-b487-ed35634b017d"
provider_name
"Google AI Studio"
model_permaslug
"google/gemini-2.5-flash"
api_type
"completions"
id
"gen-1771296646-4gO4zXYyv1jm0rNaaHwi"
upstream_id
(null)
total_cost
0.0039731
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
0
adverbTagCount
0
adverbTags
(empty)
65.1871%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1149
totalAiIsmAdverbs
4
found
0
adverb
"cautiously"
count
1
1
adverb
"slightly"
count
1
2
adverb
"utterly"
count
2
highlights
0
"cautiously"
1
"slightly"
2
"utterly"
100.0000%
AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
100.0000%
AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
0.0000%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1149
totalAiIsms
14
found
0
word
"cacophony"
count
1
1
word
"beacon"
count
1
2
word
"flicker"
count
1
3
word
"glint"
count
2
4
word
"uncanny"
count
1
5
word
"unwavering"
count
1
6
word
"intricate"
count
1
7
word
"weight"
count
1
8
word
"dancing"
count
1
9
word
"footsteps"
count
1
10
word
"echoed"
count
1
11
word
"echoing"
count
1
12
word
"navigated"
count
1
highlights
0
"cacophony"
1
"beacon"
2
"flicker"
3
"glint"
4
"uncanny"
5
"unwavering"
6
"intricate"
7
"weight"
8
"dancing"
9
"footsteps"
10
"echoed"
11
"echoing"
12
"navigated"
66.6667%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
2
maxInWindow
2
found
0
label
"eyes widened/narrowed"
count
1
1
label
"flicker of emotion"
count
1
highlights
0
"eyes narrowed"
1
"A flicker of recognition"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
3
matches
(empty)
0.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
2
narrationSentences
3
filterMatches
0
"watch"
hedgeMatches
0
"seemed to"
1
"started to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
3
matches
(empty)
45.1246%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
19
mean
60
std
18.48
cv
0.308
sampleLengths
0
87
1
70
2
80
3
78
4
43
5
85
6
63
7
44
8
84
9
79
10
54
11
47
12
52
13
43
14
60
15
43
16
57
17
16
18
55
0.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
3
matches
0
"was hidden. being hunted"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
7
totalVerbs
180
matches
0
"were turning were starting was running was displaying was haggling, was happening was hunting"
94.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1149
adjectiveStacks
1
stackExamples
0
"far beyond unauthorized medical treatments."
adverbCount
28
adverbRatio
0.024369016536118365
lyAdverbCount
12
lyAdverbRatio
0.010443864229765013
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
3
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
3
mean
0
std
0
cv
0
sampleLengths
0
15
1
16
2
1109
100.0000%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
0
diversityRatio
1
totalSentences
3
100.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
0
fancyCount
0
fancyTags
(empty)
74.7634%