NC Bench
Overview
About
Tests
Models
Vendors
Run: 2026-02-17-01KHMQZPSPKTN5G8DNV4B31BY8
Run Details
Model:
Gemini 3 Flash (Preview)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
19.7s
Cost:
$0.007482
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
Messages
Meta
AI
The humid, ozone-thick air of the abandoned Tube station clung to Harlow Quinn’s skin like a wet shroud. She paused at the foot of the rusted escalator, her boots crunching over decades of accumulated grime and shattered glass. Fifty feet above, the Camden streets
were screaming
with the usual Friday night revelry, but down here, the silence was heavy, physical, and tasted of oxidized copper. Harlow checked the worn leather
watch
on her left wrist. 2:14 AM. She adjusted her stance, her spine clicking into the rigid, military posture that had become her default setting over eighteen years on the force. Across the cavernous platform, the flickering beam of a high-powered flashlight cut through the gloom, illuminating the arched ribs of the Victorian brickwork. “Over here, Quinn,” a voice
echoed
. Harlow moved toward the light, her eyes scanning the periphery. This wasn’t a standard crime scene. The abandoned station
was supposed
to be sealed behind four inches of reinforced steel, yet the lock on the street-level grate had been sheared off with a precision that defied a standard bolt cutter. She found Sergeant Miller standing near a hollowed-out ticket booth. He was a thick-necked man who smelled of menthol cigarettes and cheap coffee, and right now, he looked like he wanted to be anywhere else. He gestured with his light toward a pile of debris near the tracks. “Squatter dispute?” Harlow asked, her voice low and raspy. “Wish it were that simple,” Miller said. He shone the beam onto the floor. “Vandalism, maybe. Or some kind of cultist nonsense. We found the entrance open during a sweep for a missing person report.” Harlow looked down. Laid out in a perfect, concentric circle were dozens of items that didn't belong in a derelict tunnel. There were bundles of dried herbs tied with silver wire, small vials of iridescent liquid that
see
med to shimmer even in the low light, and strangely shaped curios made of bone and scrap metal. In the center of the arrangement lay a body. The victim was male, mid-twenties, dressed in expensive tactical gear that looked brand new. There wasn't a mark on him—no blood, no bruising, no signs of a struggle. His eyes were wide open, staring at the soot-stained ceiling with an expression of
profound
, frozen realization. “OD,” Miller grunted, folding his arms. “Tripping on something new. Look at the eyes. Pupils are blown. This lot, they come down here to play druid, take too much of the local supply, and their heart gives out. The junk on the floor is just window dressing.” Harlow knelt beside the body, her sharp jaw tightening. She didn't touch anything yet. She reached into her coat pocket and pulled out a pair of latex gloves, snapping them on with practiced efficiency. “The vials aren't empty, Miller. If it was an overdose, he’d have finished the stash. And look at his hands.” She pointed to the victim’s right hand. It
was clamped
shut around a small, heavy object. Gently, Harlow pried the fingers back. Nestled in the palm was a small brass compass. Its casing was thick with a green patina of verdigris, and the glass face
was etched
with
intricate
, swirling sigils that
see
med to crawl if she looked at them too long. The needle didn't point north. It spun in slow, erratic circles, clicking
softly
like the heartbeat of a dying
watch
. “A Veil Compass,” Harlow whispered, the words tasting bitter. She’d
see
n sketches of such things in the private journals Morris had left behind—the ones no one at the Yard
was supposed
to know about. “A what?” Miller asked, leaning in. “Just looks like an antique, Quinn. Probably stole it from the market up top.” “He didn't steal it,” Harlow said. She stood up, her brown eyes narrowing as she surveyed the wider room. “Look at the dust, Miller. Use your eyes.” She took the flashlight from his hand and swept it across the floor. The thick carpet of grime that covered the platform
was undisturbed
everywhere except for the direct path leading to the body. There were no footprints trailing away. No signs of the 'cultists' Miller suspected. “He came here alone,” Harlow noted. “But the circle around him... those items were placed with millimetric precision. Look at the herbs. The silver wire is braided in a pattern that requires two hands and a steady light. If he’d done it himself, he would have left more scuffs in the dust. And then there’s the bone.” She used a pen to nudge a small, white disc near the victim’s foot. It was a bone token, carved with a jagged rune. “This is an entry requirement. A key. You don't leave your key on the floor unless you aren't planning on leaving.” “So someone dumped him here,” Miller countered. “Brought him in a body bag, laid out the trinkets to freak us out.” “No,” Harlow said, her voice dropping an octave. “The dust under the herbs is clean. That means they were placed here before the soot settled from the ventilation fans, which hasn't run in forty-eight hours. But the body? The body is on top of the soot. The items were here first. He was walking toward something, Miller. He wasn't the guest here. He was the intruder.” She turned her attention to a shadow in the corner, just beyond the reach of the booth. There was a girl standing there, half-obscured by a support pillar. She was small—no more than 5'4"—with a mass of curly red hair and round glasses that reflected the flashlight’s beam. She wore a heavy coat and carried a worn leather satchel that looked fit to burst with books. Harlow’s hand moved instinctively to her holster, though she didn't draw. “Police! Show me your hands.” The girl jumped, nearly dropping her bag. She immediately tucked a stray lock of red hair behind her left ear—a nervous flick of the wrist. “I—I’m sorry! I wasn't—I’m not with him!” “Name,” Harlow barked. “Eva. Eva Kowalski,” the girl stammered, her green eyes darting toward the body on the floor. She looked more terrified than guilty, her freckled complexion gone pale. “I’m a researcher. From the British Museum. I was just... I heard rumors about the Market moving.” Harlow stepped toward her, her boots
echoing
with a sharp, rhythmic authority. “The Veil Market? You
think
this is a bazaar, Miss Kowalski? It’s a crime scene.” “It’s both,” Eva said, her voice gaining a sliver of academic courage. She gestured vaguely toward the ceiling. “The Market moves every full moon. Tomorrow is the peak. This station is a transit point. That man... he wasn't supposed to be here. He’s a Breach-Hunter. Or he was.” Harlow stopped six feet from the girl. She recognized the look in Eva’s eyes. It was the same look Morris had the night he vanished—a mixture of awe and crippling dread. “What killed him?” Eva looked at the brass compass in Harlow’s hand. “The Compass points to rifts, Detective. If he
was holding
it when the Veil thinned, and if he didn't have a bone token to ground him... the sudden shift in atmospheric pressure would have snapped his synapses. He didn't overdose. His brain just stopped recognizing the reality he
was standing
in.” Miller scoffed from the background. “Pressure? In a Tube station? Quinn, tell me you aren't listening to this.” Harlow didn't answer him. She
was looking
at the way Eva’s hands
trembled
as she clutched her satchel. The girl knew too much, but she wasn't a killer. She was a witness to something Harlow had spent three years trying to name. “You mentioned the British Museum,” Harlow said, her voice softening just enough to be dangerous. “The restricted archives?” Eva nodded
quickly
. “I... I specialize in Ancient History. Specifically, the artifacts that shouldn't exist.” Harlow looked back at the body. The coldness of the station
see
med to
see
p into her bones. Every detail that Miller had dismissed as 'junk' or 'vandalism'
was clicking
into a different, darker
mosaic
. The silver wire wasn't just metal; it was a conductor. The herbs weren't drugs; they were incense meant to mask the scent of human presence from things that hunted by smell. “Sergeant Miller,” Harlow said without turning around. “Go back to the surface. Call in the forensics team, but tell them to wait at the perimeter. Tell them there’s a possible chemical leak. I want this area cleared.” “Quinn? You can’t be serious.” “Now, Miller,” she snapped, the command slicing through the air like a blade. Reluctantly, Miller grumbled and started the long climb back up the escalator. Harlow waited until the sound of his
footsteps
faded before she turned back to Eva. “You’re going to tell me exactly how that compass works,” Harlow said, holding the verdigris-covered device up. The needle
was spinning
faster now, humming with a low-frequency vibration that made Harlow’s teeth ache. “And you’re going to tell me why a girl with a master’s degree from Oxford is lurking in an abandoned tunnel at two in the morning.” Eva swallowed hard, her gaze fixed on the compass. “Because the world isn't as solid as you
think
it is, Detective. And that man? He
was trying
to find a way through. But you don't find the Market. The Market finds you.” Harlow felt a familiar shadow stir in the back of her mind—the memory of Morris’s empty trench coat lying in a rain-slicked alley. She looked down at the compass. The sigils
were glowing
now, a faint, sickly violet light. “Well then,” Harlow said, her sharp jaw set in a grim line. “I suppose we’d better start looking for the entrance. I have eighteen years of service and a dead partner to account for, and I’m tired of
being told
I’m
see
ing ghosts.” Eva reached into her satchel and pulled out a small, leather-bound notebook. Her fingers were still shaking, but her voice was steady. “The rift is behind the ticket booth, Detective. But I should warn you. Once you
see
it, you can’t un-
see
it. That’s the first rule of the Veil.” Harlow Quinn didn't flinch. She adjusted the
watch
on her wrist, checked her service weapon, and stepped into the dark. “I’ve spent three years looking for the truth in the dark, Miss Kowalski. I’m not about to turn the lights on now.”
created_at
"2026-02-17T02:48:52.826687+00:00"
2/17/2026, 2:48:52 AM
model
"google/gemini-3-flash-preview-20251217"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
866
moderation_latency
(null)
generation_time
19570
tokens_prompt
923
tokens_completion
2675
native_tokens_prompt
883
native_tokens_completion
2347
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
0.0074825
router
(null)
provider_responses
0
status
200
is_byok
false
latency
866
endpoint_id
"6e82f652-2693-4b60-bbe0-7362d6e345f0"
provider_name
"Google AI Studio"
model_permaslug
"google/gemini-3-flash-preview-20251217"
api_type
"completions"
id
"gen-1771296512-gTW1Ljb8BZESt5x2FUAH"
upstream_id
(null)
total_cost
0.0074825
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
11
adverbTagCount
0
adverbTags
(empty)
77.1036%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1747
totalAiIsmAdverbs
4
found
0
adverb
"gently"
count
1
1
adverb
"quickly"
count
1
2
adverb
"reluctantly"
count
1
3
adverb
"softly"
count
1
highlights
0
"gently"
1
"quickly"
2
"reluctantly"
3
"softly"
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)
54.2072%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1747
totalAiIsms
8
found
0
word
"mosaic"
count
1
1
word
"trembled"
count
1
2
word
"intricate"
count
1
3
word
"profound"
count
1
4
word
"footsteps"
count
1
5
word
"echoed"
count
1
6
word
"echoing"
count
1
7
word
"etched"
count
1
highlights
0
"mosaic"
1
"trembled"
2
"intricate"
3
"profound"
4
"footsteps"
5
"echoed"
6
"echoing"
7
"etched"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
0
maxInWindow
0
found
(empty)
highlights
(empty)
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
87
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
4
hedgeCount
3
narrationSentences
87
filterMatches
0
"watch"
1
"think"
2
"see"
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
96
matches
(empty)
96.3979%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
44
mean
39.23
std
19.12
cv
0.487
sampleLengths
0
65
1
59
2
6
3
50
4
48
5
9
6
35
7
64
8
45
9
47
10
54
11
82
12
34
13
20
14
27
15
47
16
57
17
45
18
21
19
66
20
66
21
16
22
32
23
3
24
44
25
27
26
48
27
34
28
60
29
18
30
42
31
18
32
15
33
65
34
37
35
5
36
13
37
27
38
59
39
42
40
39
41
43
42
50
43
42
87.3563%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
6
totalSentences
87
matches
0
"was supposed been sheared"
1
"was clamped"
2
"was etched"
3
"was supposed"
4
"was undisturbed"
5
"being told"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
8
totalVerbs
262
matches
0
"were screaming"
1
"was holding"
2
"was standing"
3
"was looking"
4
"was clicking"
5
"was spinning"
6
"was trying"
7
"were glowing"
88.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1108
adjectiveStacks
2
stackExamples
0
"humid, ozone-thick air"
1
"small, leather-bound notebook."
adverbCount
22
adverbRatio
0.019855595667870037
lyAdverbCount
11
lyAdverbRatio
0.009927797833935019
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
96
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
96
mean
17.98
std
19.35
cv
1.076
sampleLengths
0
18
1
20
2
27
3
10
4
2
5
24
6
23
7
6
8
10
9
6
10
34
11
10
12
25
13
13
14
9
15
7
16
7
17
21
18
3
19
18
20
34
21
9
22
14
23
14
24
17
25
6
26
41
27
9
28
5
29
20
30
20
31
7
32
9
33
6
34
9
35
31
36
5
37
15
38
9
39
25
40
6
41
14
42
6
43
13
44
8
45
13
46
21
47
6
48
7
49
6
72.2222%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
4
diversityRatio
0.4583333333333333
totalSentences
96
uniqueOpeners
44
38.6364%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
11
fancyCount
6
fancyTags
0
"a voice echoed (echo)"
1
"Miller grunted, folding his arms (grunt, fold)"
2
"Harlow whispered, the words tasting bitter (whisper)"
3
"Harlow noted (note)"
4
"Miller countered (counter)"
5
"Harlow said, her voice dropping an octave (say, drop)"
89.0543%