NC Bench
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Run: 2026-02-17-01KHMR5MVVKF96PEN1ZDZMTJH1
Run Details
Model:
Gemini 2.5 Flash Lite
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
12.1s
Cost:
$0.000923
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 Tube station tasted of damp concrete and something else, something coppery and foul. Detective Harlow Quinn ducked under a sagging section of the ceiling, her hand brushing against a slick, yielding surface. She paused, the faint beam of her penlight catching a smear of what looked like congealed blood. Or something close to it. It pulsed faintly, a sickly, internal light. "Anything?" Detective Inspector Thorne's voice boomed from further in, his tone laced with impatience. Thorne was a man who believed in efficiency and clean crime scenes, a
stark
contrast to the grimy reality of this place. "Just… dust and darkness, sir," Harlow replied, her voice tight. She swept the light across the platform. Graffiti, faded and nearly illegible, covered the tiled walls. The tracks, long since drained of any purpose, lay empty and disused. They were deep beneath Camden, a place the public didn’t even know existed, let alone its current, disturbing function. The Veil Market. A place whispered about in hushed tones, if at all. She’d never believed the rumors, not until the intel had landed on her desk, a cryptic note about illegal dealings and… something else. Something Thorne had dismissed as fanciful nonsense. "Well, find something," Thorne grunted. "The uniforms said they saw a light down here. Called it in. Thought it was squatters at first. Now… this." He gestured vaguely with his own flashlight, the beam cutting through the
oppressive
gloom. Harlow moved deeper into the station, her worn leather
watch
glinting
under the artificial light. She noticed the discarded crates first, piled haphazardly near a defunct ticket booth. Strange symbols,
etched
into the wood,
seemed to
shimmer in the periphery of her vision. She touched one, and a faint tremor ran through her fingertips. "Odd carvings on these," she murmured. "Superstitious nonsense," Thorne scoffed. "Probably some urban art project gone wrong. Focus on the body, Quinn." The body. It
was sprawled
near the edge of the platform, a
stark
silhouette against the decaying concrete. A young woman, no older than twenty-five, dressed in expensive, though now torn, clothing. A single, precise wound marred her chest, something that looked too clean for a street-level stabbing. Harlow knelt, her knees protesting the damp chill. Thorne stood over her, his shadow a hulking presence. "Anything we can use?" he asked. "Not at first glance," Harlow said, her eyes scanning the victim. No purse. No identification. The usual essentials
seemed to
be missing, but the sheer theatricality of the scene felt wrong. It was too clean, too… staged. "Looks like robbery. But why bring her down *here*?" "People do stupid things when they're scared," Thorne said. "And this is a pretty scary place. Especially if you don't know your way around." Harlow noticed a faint, shimmering outline around the body, like heat rising from asphalt. "Sir, do you see that?" Thorne squinted. "See what? More graffiti?" "No," Harlow said, her voice dropping. "It's… like a distortion. Around her." She traced the outline with her penlight, the beam almost bending around the anomaly. It wasn't a trick of the light. It was something else. "Energy readings are off the charts," a new voice said, calm and measured, cutting through Thorne's bluster. Eva Kowalski emerged from the shadows, her curly red hair a
beacon
in the dimness, thick round glasses perched on her nose. She clutched a worn leather satchel, its contents no doubt brimming with arcane texts. Eva, her childhood friend, an occult researcher who worked at the British Museum's restricted archives. Harlow had called her in as a last resort. Thorne had been… less than welcoming to her presence. "And who the bloody hell are you?" Thorne demanded, turning his full attention to Eva. "Eva Kowalski," she said, her voice
unwavering
. "Research assistant. I understand this location has… unique properties." She gestured to the distorted air. "There's a residual energetic signature. Something powerful." Thorne let out a disbelieving snort. "Energetic signature? This is a crime scene, not a séance, Ms. Kowalski." "Detective Quinn," Eva ignored Thorne, her green eyes meeting Harlow's. "The victim… there are traces of ectoplasmic residue. And the wound… it's consistent with a
spectral
blade." Harlow blinked. Spectral blade. It sounded like something from one of Eva's books, but the description fit the unnervingly clean cut. "Ectoplasmic residue?" she repeated, a knot forming in her stomach. This was the kind of thing that had happened three years ago. The unexplained circumstances. DS Morris. "Yes," Eva confirmed, her expression serious. "The Veil Market. It's active tonight. This is where they hold their sessions when the moon is full. Things get… traded. Sometimes, people get hurt." "Traded? Sessions?" Thorne threw his hands up. "This is a murder investigation, not a fantasy convention. Quinn, keep your friend focused. The victim’s belongings. Did you find anything on her person?" Harlow searched the victim again, meticulously. Her fingers brushed against something small and cold tucked into the woman’s boot. She pulled it out. A tarnished brass compass, its face
etched
with protective sigils. The casing had a patina of verdigris, and the needle, instead of pointing north,
quivered
erratically, then settled, not towards the exit, but deeper into the cavernous darkness of the abandoned station. "A compass?" Thorne’s voice dripped with sarcasm. "What, did she get lost?" "This isn't just any compass, sir," Eva said, peering at it. "Look at the markings. They're wards. And the needle… it's not pointing north. It's pointing towards a… breach." Harlow’s breath hitched. Breach. Like the one… like the one that had taken Morris. “A breach where, Eva?” Eva pointed with a slender finger. “That way. Towards the old maintenance tunnels. The market… it’s mobile. It moves. But the portals, the rifts… they leave traces. And this compass," she looked at Harlow intently, "it’s a Veil Compass. Crafted by a Shade artisan. It’s attuned to supernatural energy. Drifting needles mean a portal is near. Or something has come through one.” Thorne stared at the compass, then at the empty tracks, then at his uniformed officers milling about the entrance. He was a man of logic, of observable facts. This… this was beyond his understanding. "A Shade artisan? Supernatural energy? Are you playing me, Detective Quinn?" "No, sir," Harlow said, her voice firm, finding a resolve she hadn't felt in years. "I think Ms. Kowalski might be onto something. The victim was here for a reason. And this compass… it's leading us somewhere." She looked at Eva. "What kind of breach causes ectoplasmic residue?" "Anything that disrupts the veil between worlds," Eva explained, her brow
furrowed
in concentration. "But this much… it suggests a powerful entity. Or a significant event. The market might have been raided. Or something escaped." Harlow’s mind raced. Morris. The case had gone cold, officially. Unexplained disappearance. But she’d seen things, felt things, that defied rational explanation. Whispers of shadows, of impossible cold, of a presence that wasn't human. She'd dismissed it as trauma, as grief playing tricks on her mind. But here, in this place, the
echoes
were starting
to resonate. "So, you're saying this woman was killed by… something that came through a rip in reality?" Thorne asked, his voice a low growl, but his eyes, for the first time, held a
flicker
of something other than impatience. Doubt, perhaps. Or fear. "Or by someone who deals with such things," Eva corrected. "The criminals who operate here are not your average thugs, Inspector. They traffic in items imbued with magic, in substances that can alter perception, or worse. And they have… unusual protection." Harlow stood, the Veil Compass clutched in her hand. The needle
trembled
, a silent, insistent lure pulling her toward the darkness of the maintenance tunnels. "We follow the compass," she stated, her gaze fixed on the tunnel entrance. "That’s our next step." Thorne hesitated, then nodded curtly. "Fine. But stay sharp, Quinn. I don't like surprises. And I *
really
* don't like ghosts." He looked at Eva. "And you. Stick close to Detective Quinn. If any of that 'ectoplasmic residue' tries to get clever, let her handle it." Harlow ignored Thorne’s jab, her mind already miles away, back three years. Morris. He’d been investigating something… strange. Something he’d refused to discuss with her. He’d mentioned shadows, too. And a compass. She’d thought he
was losing
his grip. Now, holding this tarnished brass in her hand, she wasn’t so sure. The Veil Market. The breach. The
spectral
blade. It was all starting to connect, a horrifying
tapestry
woven from nightmares. "Let's go," she said to Eva, her voice steadier than she expected, her military precision kicking in. The Compass pulsed faintly in her palm, a silent promise of answers, and a grim warning of what those answers might entail. The investigation had just taken a sharp, unexpected turn into the impossibly real.
created_at
"2026-02-17T02:52:00.395086+00:00"
2/17/2026, 2:52:00 AM
model
"google/gemini-2.5-flash-lite"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
212
moderation_latency
(null)
generation_time
12045
tokens_prompt
923
tokens_completion
2375
native_tokens_prompt
883
native_tokens_completion
2086
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
0.0009227
router
(null)
provider_responses
0
status
200
is_byok
false
latency
212
endpoint_id
"ce839073-aa24-4f29-8358-15b319bd05ec"
provider_name
"Google AI Studio"
model_permaslug
"google/gemini-2.5-flash-lite"
api_type
"completions"
id
"gen-1771296707-PYrVLAqsXA0toAguIbrc"
upstream_id
(null)
total_cost
0.0009227
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
21
adverbTagCount
1
adverbTags
0
"she looked at Harlow intently [intently]"
93.2019%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1471
totalAiIsmAdverbs
1
found
0
adverb
"really"
count
1
highlights
0
"really"
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
1471
totalAiIsms
17
found
0
word
"tapestry"
count
1
1
word
"beacon"
count
1
2
word
"flicker"
count
1
3
word
"glinting"
count
1
4
word
"trembled"
count
1
5
word
"quivered"
count
1
6
word
"oppressive"
count
1
7
word
"spectral"
count
3
8
word
"unwavering"
count
1
9
word
"stark"
count
2
10
word
"furrowed"
count
1
11
word
"echoes"
count
1
12
word
"etched"
count
2
highlights
0
"tapestry"
1
"beacon"
2
"flicker"
3
"glinting"
4
"trembled"
5
"quivered"
6
"oppressive"
7
"spectral"
8
"unwavering"
9
"stark"
10
"furrowed"
11
"echoes"
12
"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
119
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
2
narrationSentences
119
filterMatches
0
"watch"
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
138
matches
(empty)
99.8574%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
37
mean
39.7
std
19.83
cv
0.5
sampleLengths
0
66
1
36
2
100
3
39
4
60
5
16
6
48
7
23
8
46
9
24
10
19
11
6
12
37
13
17
14
69
15
15
16
29
17
18
18
27
19
48
20
31
21
31
22
65
23
12
24
29
25
18
26
62
27
45
28
48
29
35
30
57
31
42
32
41
33
42
34
45
35
71
36
52
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
119
matches
0
"was sprawled"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
2
totalVerbs
162
matches
0
"were starting"
1
"was losing"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
996
adjectiveStacks
0
stackExamples
(empty)
adverbCount
33
adverbRatio
0.03313253012048193
lyAdverbCount
15
lyAdverbRatio
0.015060240963855422
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
138
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
138
mean
10.64
std
8.3
cv
0.78
sampleLengths
0
18
1
19
2
17
3
5
4
7
5
14
6
22
7
10
8
7
9
9
10
12
11
19
12
3
13
10
14
21
15
2
16
7
17
5
18
34
19
15
20
13
21
15
22
11
23
6
24
4
25
12
26
2
27
16
28
14
29
16
30
8
31
9
32
6
33
11
34
2
35
2
36
16
37
5
38
1
39
9
40
9
41
15
42
14
43
5
44
2
45
4
46
6
47
20
48
7
49
4
59.6618%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
11
diversityRatio
0.4057971014492754
totalSentences
138
uniqueOpeners
56
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
21
fancyCount
16
fancyTags
0
"Thorne grunted (grunt)"
1
"she murmured (murmur)"
2
"Thorne scoffed (scoff)"
3
"Harlow said, her eyes scanning the victim (say, scan)"
4
"Harlow said, her voice dropping (say, drop)"
5
"demanded (demand)"
6
"she said, her voice unwavering (say, unwaver)"
7
"Eva ignored Thorne, her green eyes meeting Harlow's (ignore)"
8
"Eva confirmed, her expression serious (confirm)"
9
"Eva said, peering at it (say, peer)"
10
"she looked at Harlow intently (look)"
11
"Harlow said, her voice firm, finding a resolve she hadn't felt in years (say, does not feel)"
12
"Eva explained, her brow furrowed in concentration (explain, furrow)"
13
"Eva corrected (correct)"
14
"she stated, her gaze fixed on the tunnel entrance (state, fix)"
15
"she said to Eva, her voice steadier than she expected, her military precision kicking in (say expect)"
85.4542%