NC Bench
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Run: 2026-02-17-01KHMR2HRNATV5VBJ4X08CA5SJ
Run Details
Model:
Gemini 3 Flash (Preview)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
17.1s
Cost:
$0.006537
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 air in the abandoned Mornington Crescent Tube station tasted of copper and stagnant damp, a heavy, metallic
weight
that clung to the back of Harlow Quinn’s throat. She stepped over a rusted rail, the rubber soles of her boots crunching on grit that hadn't
been disturbed
by a commuter in decades. Above, the city of London hummed with the morning rush, oblivious to the labyrinth rotting beneath its feet. Quinn adjusted the worn leather strap of the watch on her left wrist, checking the time. 04:12. She’d been awake for twenty hours, but her posture remained as rigid as a parade-ground salute. At forty-one, with eighteen years of service
etched
into the lines around her eyes and the sharp set of her jaw, she had
learned that fatigue
was just another variable to be managed. "Over here, Quinn," a voice
echoed
through the vaulted tunnel. She followed the beam of a high-powered work light toward the darkness of a disused maintenance bay. Constable Miller stood by a collapsed brick wall, his breath frosting in the subterranean chill. He looked green, his youth betrayed by the way he avoided looking at the center of the room. "Report," Quinn said, her voice a low, raspy rasp. "Homeless squatters found it an hour ago," Miller said, gesturing vaguely. "They ran screaming into the street and flagged down a patrol car. It’s… it’s a mess, Ma’am." Quinn stepped into the pool of light. On the floor lay a body, or what remained of one. It was a man, middle-aged, dressed in a tailored wool coat that seemed entirely out of place in the filth of the underground. He
was sprawled
in the center of a wide, intentional circle of white powder. "Forensics says it looks like a botched robbery," Miller offered, flipping through a notebook with shaking fingers. "Wallet’s gone. Watch too. Probably bumped into the wrong crowd down here. There’s a lot of gang activity reported in the Camden tunnels lately." Quinn didn't answer. She crouched at the edge of the circle, her salt-and-pepper hair catching the harsh glare of the work lights. She didn't look at the body yet. Instead, she looked at the powder. She reached out, pinched a grain between her thumb and forefinger, and sniffed. It wasn't flour or salt. It smelled of ozone and dried lavender. "You think a street gang spent twenty minutes meticulously pouring a perfect circle of expensive alchemical salts before stabbing a man for his Rolex?" Quinn’s voice was dry. Miller stammered. "Well, maybe it’s ritualistic? Occultists? We get the odd weirdo near Halloween." "It’s June, Miller." Quinn moved her gaze to the victim. The wounds were clean, impossibly so. There was a lack of arterial spray on the walls that bothered her. In a space this narrow, a violent struggle should have painted the bricks. Instead, the blood was pooled neatly beneath the torso, as if it had been drained by gravity alone. But it was the object clutched in the victim’s cold, stiff fingers that drew her focus. It was a small brass compass, its casing thick with a green patina of verdigris. The glass face
was etched
with symbols Quinn didn't recognize—
intricate
, swirling sigils that
seemed to
shift when she tilted her head. The needle didn't point north. It spun in a slow, hypnotic rhythm, clicking like a dying heartbeat. She felt a familiar, cold shiver crawl up her spine. It was the same sensation she’d felt three years ago, standing in a warehouse in Southwark over the empty clothes of DS Morris. The official report said Morris had gone missing, likely a victim of a deep-cover betrayal. But Quinn had seen things in that warehouse—shadows that moved against the light, a silence so
profound
it felt like a physical
weight
. "Look at his pockets, Miller," Quinn commanded. The Constable leaned in, squinting. "They’re torn, Ma’am. Like I said, robbery." "The lining is torn outward," Quinn corrected, her brown eyes narrowing. "Someone didn't reach in to take something. Something reached out." She stood up and paced the perimeter of the chamber. Her mind was a filing cabinet of patterns and anomalies. This location wasn't just a tunnel. The brickwork here was different—older, reinforced with iron grates that didn't lead to any known sewer or ventilation shaft. She noticed a faint, shimmering residue on the ground, leading away from the body and toward a heavy steel door that
appeared to
have
been welded
shut years ago. Quinn pulled a pair of gloves from her pocket and snapped them on. She approached the door and noticed a small slit in the metal, just large enough to slide a coin through. On the floor beneath it lay a small piece of polished ivory—a bone token. "Miller, get on the radio. Tell dispatch I want a background check on a woman named Eva Kowalski. And find out where Aurora is. I saw them together last week near that bookshop in Bloomsbury." Miller blinked, confused. "The researcher from the British Museum? What’s she got to do with a dead body in a Tube station?" "She’s an expert in things that don't exist," Quinn said, her jaw tightening. "And right now, I’m looking at a crime scene that defies e
very
law of physics I’ve ever investigated." Quinn picked up the brass compass. As her fingers brushed the
etched
glass, the needle stopped its spinning and snapped toward the steel door with violent force. The air in the room
suddenly
grew ten degrees colder. She could hear it now—a faint, rhythmic chanting or perhaps the hum of a thousand bees, vibrating through the
very
soles of her boots. This was no random mugging. This was the entrance to something else. The "Veil Market," the informants in the shadows whispered about it like a fairy tale, a place that moved with the moon. If the victim
was holding
a Veil Compass, he wasn't a tourist. He was a customer. She looked back at Miller, who was busy trying to get a signal on his radio. He was a good kid, but he saw the world in black and white, in statutes and procedures. He didn't see the way the shadows in the corners of the room
seemed to
stretch toward the body. Quinn reached into her own jacket and pulled out a small, leather-bound notebook. She flipped to the back, to a page filled with sketches she’d made in the dark hours of her insomnia. They were drawings of the symbols she’d seen at the Morris site. She compared them to the etchings on the compass. A match. Her heart hammered against her ribs—a rare admission of adrenaline. For three years, she had been a pariah in the department, the "obsessed" detective who wouldn't let a cold case stay cold. They thought she
was mourning
. They thought she was broken. They didn't realize she
was hunting
. "Ma'am?" Miller said, holding the radio. "Dispatch says Kowalski’s record is clean. Master’s from Oxford, works in the restricted archives. But they have a flag on the name. She was picked up for trespassing on a 'protected archaeological site' in Camden last month. Case was dropped when the owner refused to press charges." "Let me guess," Quinn said, staring at the steel door. "The owner was a shell company with no physical address." "How did you know?" "Because the people Kowalski runs with don't live in the light," Quinn murmured. She tucked the compass into her evidence bag, but she didn't seal it. She felt the
weight
of it, the way it
seemed to
pull her toward the wall. She knew the protocol. She should call in the forensics team, wait for the coroner, and file a forty-page report that would be buried by her superiors by Monday morning. But the needle on the compass
was pointing
at that door with an insistence that felt like a command. She thought of Morris’s face, the way he’d laughed just before they
entered that warehouse
three years ago. She thought of the red-headed researcher, Eva, with her round glasses and her satchel full of forbidden histories, always one step ahead of the law. Quinn was a detective of the Metropolitan Police, a woman of facts and evidence. But as she looked at the bone token on the floor, she
realized that the
evidence was finally pointing somewhere the law couldn't follow. "Miller," she said, her voice turning back into the steel of a commanding officer. "Secure the perimeter. Don't let anyone—and I mean anyone—down those stairs until I come back." "Where are you going, Ma'am?" Quinn picked up the bone token. It felt warm, vibrating with a low-frequency hum that made her teeth ache. She looked at the steel door, then at the sharp, salt-and-pepper reflection of herself in the polished metal. "I'm going to find out what kind of market sells a man's life for a piece of brass," she said. She stepped toward the door, the bone token held out like a key, and for the first time in three years, Detective Harlow Quinn felt like she was finally walking in the right direction. The shadows didn't retreat as she approached; they parted, welcoming her into the dark.
created_at
"2026-02-17T02:50:23.773984+00:00"
2/17/2026, 2:50:23 AM
model
"google/gemini-3-flash-preview-20251217"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
839
moderation_latency
(null)
generation_time
17050
tokens_prompt
923
tokens_completion
2303
native_tokens_prompt
883
native_tokens_completion
2032
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
0.0065375
router
(null)
provider_responses
0
status
200
is_byok
false
latency
839
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-1771296605-wlvoa3tCIYxHJT5zlBrb"
upstream_id
(null)
total_cost
0.0065375
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
82.0513%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
13
adverbTagCount
2
adverbTags
0
"Miller said, gesturing vaguely [vaguely]"
1
"she said, her voice turning back into the steel of a commanding officer [back]"
87.1548%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1557
totalAiIsmAdverbs
2
found
0
adverb
"suddenly"
count
1
1
adverb
"very"
count
1
highlights
0
"suddenly"
1
"very"
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)
42.1965%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1557
totalAiIsms
9
found
0
word
"intricate"
count
1
1
word
"profound"
count
1
2
word
"weight"
count
3
3
word
"echoed"
count
1
4
word
"etched"
count
3
highlights
0
"intricate"
1
"profound"
2
"weight"
3
"echoed"
4
"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
95
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
4
narrationSentences
95
filterMatches
(empty)
hedgeMatches
0
"seemed to"
1
"appeared to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
3
totalSentences
109
matches
0
"learned that fatigue"
1
"entered that warehouse"
2
"realized that the"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
40
mean
38.4
std
22.48
cv
0.585
sampleLengths
0
70
1
66
2
10
3
50
4
9
5
28
6
55
7
41
8
60
9
28
10
14
11
3
12
57
13
69
14
71
15
7
16
12
17
21
18
74
19
47
20
35
21
22
22
31
23
61
24
50
25
53
26
54
27
2
28
48
29
53
30
20
31
4
32
42
33
49
34
81
35
29
36
5
37
37
38
20
39
48
98.2456%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
5
totalSentences
95
matches
0
"been disturbed"
1
"was sprawled"
2
"was pooled been drained"
3
"was etched"
4
"been welded"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
4
totalVerbs
201
matches
0
"was holding"
1
"was mourning"
2
"was hunting"
3
"was pointing"
94.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1231
adjectiveStacks
1
stackExamples
0
"small, leather-bound notebook."
adverbCount
27
adverbRatio
0.021933387489845652
lyAdverbCount
8
lyAdverbRatio
0.006498781478472786
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
109
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
109
mean
14.09
std
8.11
cv
0.575
sampleLengths
0
28
1
24
2
18
3
16
4
1
5
16
6
33
7
10
8
17
9
15
10
18
11
9
12
11
13
17
14
7
15
11
16
23
17
14
18
17
19
24
20
3
21
19
22
7
23
6
24
13
25
5
26
7
27
28
28
2
29
12
30
3
31
7
32
6
33
13
34
13
35
18
36
16
37
15
38
21
39
5
40
12
41
10
42
23
43
15
44
23
45
7
46
5
47
7
48
11
49
10
49.0741%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
12
diversityRatio
0.3611111111111111
totalSentences
108
uniqueOpeners
39
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
13
fancyCount
11
fancyTags
0
"a voice echoed through the vaulted tunnel (echo vault)"
1
"Quinn said, her voice a low, raspy rasp (say, voice)"
2
"Miller said, gesturing vaguely (say, gesture vaguely)"
3
"Miller offered, flipping through a notebook with shaking fingers (offer, flip shake)"
4
"Quinn commanded (command)"
5
"Quinn corrected, her brown eyes narrowing (correct, narrow)"
6
"Quinn said, her jaw tightening (say, tighten)"
7
"The the informants in the shadows whispered about it like a fairy tale, a place that moved with the moon. (whisper like move)"
8
"Quinn said, staring at the steel door (say, staring)"
9
"Quinn murmured (murmur)"
10
"she said, her voice turning back into the steel of a commanding officer (say, turn back)"
85.4543%