NC Bench
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Run: 2026-02-17-01KHMRAR7TJ2ZX02QQHM5KNBGK
Run Details
Model:
Gemini 2.5 Flash Lite
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
10.5s
Cost:
$0.000903
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 hung thick and cloying, a miasma of damp earth and something vaguely metallic, like spilled pennies. Detective Harlow Quinn ducked beneath a sagging corrugated metal sheet, its rust blooming like some grotesque, airborne fungus. Her breath plumed in the frigid air, the meager beam of her flashlight cutting a jittery path through the gloom. Eighteen years on the force, and she’d never quite gotten used to the stench of places the light forgot. This place, however, was a new level of wrong. They’d found the body an hour ago, dumped in a forgotten alcove of what looked like an abandoned Underground station. Not just abandoned, though. Chiseled graffiti, unlike anything she’d seen on the surface, snaked across the grimy tiles, depicting impossible geometries and unsettling, multi-limbed figures. The station itself felt…wrong. The damp chill wasn’t just a product of neglect; it seeped into her bones, a primal cold that had little to do with the London autumn. “Anything on forensics?” Quinn’s voice, tight and clipped,
echoed
unnervingly in the confined space. A figure detached itself from the shadows near a support pillar, his uniform jacket pulled tight against the cold. Detective Sergeant Ben Carter. Young, eager, and prone to jumping to conclusions. Quinn tolerated him, more or less. He was a breath of fresh, if sometimes misguided, air. “Just the preliminary, Guv’nor,” Carter said, his face pale in the dim light. He gestured with a gloved hand. “Victim’s name is Silas Croft. Petty thief, according to the intel. Found him slumped against this wall.” He indicated a dark stain that had soaked into the grimy concrete. “Single stab wound, clean. Looks like a knife, but no weapon found. No witnesses, naturally. Not exactly a tourist hotspot.” Quinn walked
slowly
, her worn leather
watch
catching the faint spill of light. She
cataloged
e
very
thing: the unnatural stillness of the air, the way the shadows
seemed to
cling to the edges of her vision, the complete absence of even the skittering of vermin. Most crime scenes, even the grim ones, had a certain chaotic energy. This one felt…sterile. Designed. “And the entry?” she asked, her eyes scanning the grimy floor, meticulously avoiding the chalk outlines. “How did our perp get him down here? There are no obvious access points from street level, and whoever cleaned up has done a thorough job.” Carter shrugged, a movement that
seemed to
betray a
flicker
of unease. “That’s what’s bothering me, Guv. The access. We found a grate further down the line. Heavily reinforced. We had to bring in the specialized team to get it open. It was locked from the *inside*. Whoever brought Croft here, they didn’t leave by the way they came in.” He ran a hand through his already disheveled hair. “Or they didn’t leave at all.” Quinn’s gaze sharpened. “Locked from the inside. Then how did they get *out*?” She knelt beside the stain, pulling on a pair of latex gloves. The concrete felt unnaturally cold, not just the ambient chill, but a deep, absorbing cold. She scraped a tiny sample into a sterile vial. It looked like blood, but the texture seemed…off. Too fine-grained. “The victim’s found with a single stab wound, no weapon, and the only apparent entry was locked from the inside,” Quinn mused aloud. Her mind was already sifting through the impossible. “This isn’t a standard mugging gone wrong, Carter. This is something else.” “Something else?” Carter
echoed
, a hint of his usual bravado returning. “You think it’s one of *them*? The cultists who’ve been messing around in the East End? Remember that missing kid last month? The one with the strange symbols carved into his bedroom door?” Quinn didn’t dismiss it. Last year, during that mess with the disappearance of DS Morris, she’d seen things she still couldn’t explain. Things that defied logic, science, and her
carefully
curated perception of reality. She’d lost her partner, her best friend, to a darkness she hadn’t yet defined. She wouldn’t let another lead slip through her fingers because it didn't fit the standard procedural manual. “The symbols,” Quinn said, her eyes scanning the walls again. “What do you know about them?” “Not much,” Carter admitted. “Occult stuff. Urban legend mostly. They say there are hidden markets for illegal magical artifacts, ancient texts…places like this might be involved.” He gestured vaguely. “The Veil Market, they call it. Moves e
very
full moon.” Quinn’s sharp jawline tightened. A hidden market. Access locked from the inside. A body that felt…wrong. Things
were beginning
to click, unsettlingly so. “And this place,” she said, standing up and shining her light on a section of wall that seemed more intact than the rest. “It’s not just an abandoned Tube station, is it?” Carter followed her gaze. “No, Guv. The intel suggests this is one of the Market’s old haunts. They rotate their locations. This one’s been dormant for a while.” Quinn moved closer, her flashlight beam
dancing
over the tiles. She saw it then, faint but undeniable. A hairline crack, almost invisible, tracing a perfect circle around a section of the wall. It wasn't structural damage. It was deliberate. “Carter,” she said, her voice low. “Get me a pry bar. A sturdy one.” He hesitated. “Guv, the forensics team…” “The forensics team is looking for a murderer, Carter,” Quinn interrupted, her voice hard. “I’m looking for a ghost. And ghosts don’t always leave the kind of evidence you’re expecting.” Minutes later, Carter returned with a heavy-duty crowbar. Quinn took it, its cold metal a
stark
contrast to the impossible chill of the surroundings. She inserted the edge of the pry bar into the hairline fracture and applied pressure. It didn’t budge. She braced her shoulder against it, gritting her teeth. Slowly, with a groan that
seemed to
reverberate through the
very
earth, the section of the wall
began to
yield. It wasn’t solid concrete behind it. It was…space. The crack widened, revealing a gap. Quinn shone her light inside. It was small, a cramped cavity barely large enough for a person to squeeze through. And on the floor of this hidden recess lay a small, tarnished brass object. “What
is that?” Carter
breathed, peering over her shoulder. Quinn reached in, her gloved fingers closing around the object. It was a compass, but unlike any compass she’d ever seen. Its casing, a dull brass verdigris,
was etched
with
intricate
, protective sigils. The face was not mother-of-pearl but a dark, opaque material, and where the cardinal directions should have been, there were odd, angular symbols. As she pulled it out, the needle, impossibly thin and sharp,
quivered
. It didn’t point north. It
quivered
, then
slowly
,
deliberately
, swung towards the far end of the abandoned platform, towards a dark, gaping tunnel mouth that looked like it led to nowhere. “A Veil Compass,” Quinn said, her voice barely a whisper. “The intel mentioned them. Tools used to
navigate
the…in-between places. They point to supernatural rifts.” Carter stared at the compass, then at the tunnel mouth. His face was a mixture of
apprehension
and a dawning, dangerous curiosity. “So the killer…they didn’t leave through the grate. They went
through *that*.” He
pointed to the tunnel. “And the locked grate was a misdirection?” Quinn shook her head
slowly
, her gaze fixed on the compass. The needle pulsed with a faint, internal light. “No. Not a misdirection. A seal. They didn't lock it from the inside to keep us out. They locked it from the inside to keep *something else* in.” She looked at the bloodstain on the wall, then back at the hidden cavity. “Croft wasn’t killed here, Carter. He was dragged here, then…something else happened. Something that left him here to be found. The wound was the least of his problems.” She turned the compass over in her palm. The cold radiating from it was not the simple physical cold of the abandoned station. This was deeper, as if the object itself held a piece of whatever lay beyond. “The killer didn’t leave,” Quinn repeated, her deduction solidifying into an unshakeable certainty. “They’re still here. Or rather, *it* is. And this compass…it’s showing us where to look.” She met Carter's wide, fearful eyes. “Are you with me, Sergeant?” Carter swallowed, his gaze flicking between the pulsing compass and the yawning maw of the tunnel. He drew a shaky breath and squared his shoulders, a nascent military precision replacing his youthful eagerness. “Yes, Guv. Lead the way.” Quinn adjusted her grip on the Veil Compass, its needle
unwavering
, pointing toward the unknown. The true investigation, she knew, had just begun. The mundane world was a thin veneer, and underneath it, something ancient and dangerous was stirring. And she, guilt of her partner’s fate gnawing at her,
was determined
to face it, whatever the cost.
created_at
"2026-02-17T02:54:45.568631+00:00"
2/17/2026, 2:54:45 AM
model
"google/gemini-2.5-flash-lite"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
221
moderation_latency
(null)
generation_time
10454
tokens_prompt
923
tokens_completion
2355
native_tokens_prompt
883
native_tokens_completion
2036
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
0.0009027
router
(null)
provider_responses
0
status
200
is_byok
false
latency
221
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-1771296874-ymYGfWXysny4nWxdDuF4"
upstream_id
(null)
total_cost
0.0009027
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
33.3333%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
10
adverbTagCount
3
adverbTags
0
"Quinn said, her eyes scanning the walls again [again]"
1
"she said, standing up and shining her light on a section of wall that seemed more intact than the rest [more]"
2
"Quinn said, her voice barely a whisper [barely]"
52.2510%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1466
totalAiIsmAdverbs
7
found
0
adverb
"carefully"
count
1
1
adverb
"deliberately"
count
1
2
adverb
"slowly"
count
4
3
adverb
"very"
count
1
highlights
0
"carefully"
1
"deliberately"
2
"slowly"
3
"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)
11.3233%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1466
totalAiIsms
13
found
0
word
"flicker"
count
1
1
word
"quivered"
count
2
2
word
"cataloged"
count
1
3
word
"unwavering"
count
1
4
word
"intricate"
count
1
5
word
"stark"
count
1
6
word
"apprehension"
count
1
7
word
"dancing"
count
1
8
word
"echoed"
count
2
9
word
"etched"
count
1
10
word
"navigate"
count
1
highlights
0
"flicker"
1
"quivered"
2
"cataloged"
3
"unwavering"
4
"intricate"
5
"stark"
6
"apprehension"
7
"dancing"
8
"echoed"
9
"etched"
10
"navigate"
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
97
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
4
narrationSentences
97
filterMatches
0
"watch"
hedgeMatches
0
"seemed to"
1
"began to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
2
totalSentences
115
matches
0
"is that?” Carter"
1
"through *that*.” He"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
34
mean
43
std
21.78
cv
0.506
sampleLengths
0
84
1
75
2
14
3
47
4
68
5
60
6
42
7
75
8
13
9
46
10
43
11
44
12
65
13
16
14
39
15
23
16
32
17
28
18
39
19
14
20
6
21
30
22
79
23
40
24
9
25
56
26
43
27
25
28
46
29
89
30
38
31
39
32
38
33
57
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
2
totalSentences
97
matches
0
"was etched"
1
"was determined"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
1
totalVerbs
165
matches
0
"were beginning"
94.7209%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1021
adjectiveStacks
0
stackExamples
(empty)
adverbCount
47
adverbRatio
0.04603330068560235
lyAdverbCount
15
lyAdverbRatio
0.014691478942213516
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
115
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
115
mean
12.71
std
8.68
cv
0.683
sampleLengths
0
18
1
18
2
20
3
19
4
9
5
20
6
4
7
21
8
4
9
26
10
14
11
19
12
4
13
8
14
6
15
10
16
13
17
6
18
29
19
20
20
13
21
31
22
12
23
3
24
1
25
16
26
26
27
12
28
57
29
6
30
3
31
10
32
12
33
15
34
9
35
8
36
2
37
23
38
8
39
12
40
11
41
33
42
4
43
18
44
12
45
14
46
17
47
10
48
6
49
4
62.8986%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
6
diversityRatio
0.40869565217391307
totalSentences
115
uniqueOpeners
47
25.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
10
fancyCount
6
fancyTags
0
"Quinn mused aloud (muse)"
1
"Quinn said, her eyes scanning the walls again (say, scan)"
2
"Carter admitted (admit)"
3
"she said, standing up and shining her light on a section of wall that seemed more intact than the rest (say, stand up shine seem more)"
4
"Quinn interrupted, her voice hard (interrupt)"
5
"Quinn repeated, her deduction solidifying into an unshakeable certainty (repeat, solidify)"
81.1487%