NC Bench
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Run: 2026-02-17-01KHMQHV6MR7CP7CHZ2SWFAWYT
Run Details
Model:
Gemini 3 Pro (Preview)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
48.7s
Cost:
$0.049226
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 descent into the bowels of Camden did not smell like a typical crime scene. It smelled of ozone, copper, and something cloyingly sweet, like rotting gardenias. Detective Harlow Quinn adjusted the collar of her trench coat, the damp subterranean air clinging to her skin. She stopped at the rusted iron gate that technically marked the end of the maintenance tunnels and the beginning of the Metropolitan line’s forgotten history. Harlow checked the worn leather
watch
on her left wrist. Midnight. Right on schedule. She despised this. She despised the shadowy corners of London that didn't appear on any municipal map, and she despised that eighteen years of decorated service hadn't prepared her for the sheer absurdity of what lay beyond this gate. She reached into her pocket and withdrew the evidence she wasn’t supposed to have: a small, yellowed bone token, carved with a symbol that made her eyes water if she looked at it too long. She pressed it against the cold iron lock. There was no click, no mechanical release. Just a sudden, sickening drop in air pressure, and the gate swung inward with a groan that sounded entirely too human. "Police," she muttered to the empty dark, stepping through. "Though I doubt anyone here gives a toss." The Veil Market was supposedly abandoned, a ghost station beneath the chaotic high street, but the silence here was heavy, expectant. The tiled walls, curving up into the darkness of the tube tunnel, were slick with moisture. Makeshift stalls constructed from scavenged sleepers and heavy canvas lined the platform, but they were empty. The peddlers of enchanted trash and illicit alchemical substances had scattered, likely tipped off before she even parked her car. Except for one. At the far end of the platform, illuminated by a single, sputtering electric lantern, a figure stood over a heap of dark fabric. As Harlow approached, her boots
echoing
with military precision against the concrete, the figure turned. "You're late, Detective," Eva Kowalski said. Harlow stopped ten feet away. "And you are trespassing, Ms. Kowalski. This is an active crime scene." "It's a forgotten tunnel. Legally, it's a gray area." Eva adjusted her round glasses, her fingers trembling
slightly
as she tucked a loose strand of curly red hair behind her left ear. She looked entirely out of place in the gloom, dressed in a thick wool sweater and clutching a worn leather satchel to her chest as if it contained the crown jewels. "Besides, I knew you’d need a translator." Harlow
clenched her jaw
. The sharp line of her face remained impassive, but she
was irritated
. Eva was a friend of the targets Harlow
was monitoring
—that clique of occult dabblers—but the girl was also, frustratingly, the most reliable academic source Harlow had found for these "unexplained" incidents. "I need a witness statement," Harlow said, stepping past her to look at the body. "And then I need you to clear out." "It’s not a body, Harlow. Not
really
." Harlow looked down and felt a familiar, cold knot tighten in her gut. It was a man, or it had been. He
was seated
in a folding chair behind a stall laden with jars of cloudy fluid. But where his skin should have been, there was only gray, porous stone. He had
been calcified
, frozen in a scream, his hands clawing at his throat. "Petrification," Harlow noted, pulling a pair of nitrile gloves from her pocket. She kept her tone flat, clinical. "Rapid onset, judging by the posture. Chemical agent?" "Alchemical backlash," Eva corrected, crouching down beside the statue. She opened her satchel and pulled out a notebook, scribbling furiously. "He was likely trading in instability salts. If you mix them with the wrong binding agent... poof. Statue." Harlow scanned the stall. "Accidental death, then? That’s your assessment?" "It’s the only thing that makes sense. The Veil Market moves every full moon. The energy here is chaotic. Accidents happen." Harlow didn't answer immediately. She crouched on the other side of the victim, her eyes narrowing. She had learned a long time ago, after DS Morris had died screaming in a room locked from the inside, that the obvious answer in these cases was usually a
facade
. She looked at the ground. The dust on the platform was thick, disturbed by the scuffle of many feet—the fleeing patrons. But around the chair, the dust
was settled
in a peculiar way. "You're looking at the magic," Harlow said quietly. "You're dazzled by the impossible nature of the corpse." "It is impossible," Eva insisted. "There isn't a poison on earth that turns a man to limestone in seconds." "I'm not looking at the stone, Eva. I'm looking at the geometry." Harlow pointed to the floor. "Look at his feet. The heels are dug in. He pushed back." "He was in pain." "He was terrified before the transformation started." Harlow stood up and walked a slow circle around the stall. "If he dropped a beaker of your 'instability salts,' the splash pattern would be radial. It would hit his legs, maybe his lap. But look at him. The calcification is total. Even the back of his neck. He was engulfed." Harlow reached out, hesitating for a fraction of a second, before touching the victim's jacket pocket. The stone fabric felt rough, like sandpaper. She fished inside the petrified opening. Her fingers brushed against cold metal. She pulled out a small brass object. It was heavy, coated in a patina of verdigris that stained her latex glove. "A Veil Compass," Eva breathed, leaning in. "A Shade artisan made that. They’re rare." "It's a navigational tool?" Harlow asked, turning it over. The face
was etched
with sigils that made her headache pulse. "It points to supernatural rifts. Portals. Strong sources of energy." Harlow looked at the needle. It
wasn't spinning
wildly, nor was it pointing North. It was locked hard to the left, pointing directly at the tiled wall of the tube station, specifically at a faded advertisement for a West End show that closed in 1994. "It's broken," Eva said. "There’s no rift there. That’s just solid earth behind the tiles." "Is it?" Harlow walked toward the wall. "You said this was an accident. But if I possess a device that detects dangerous energy, and I’m handling dangerous energy, wouldn't I be
watch
ing it?" "I suppose." "He wasn't looking at his wares," Harlow deduced, looking back at the statue. "His head is turned. He was looking at *you*, or rather, where you’re standing." Eva took a nervous step back, clutching her satchel tighter. "I didn't do this." "I know. You don't have the stomach for it." Harlow turned back to the wall. "The compass is pointing here. The victim was looking here. And the dust..." She shone her flashlight along the floor where the wall met the concrete. There was a gap in the grime. A perfect, clean arc, as if a door had swung open and scraped the floor clean, then swung shut again. But there was no door. Just grimy ceramic tiles. "Someone stepped out of this wall," Harlow said, her voice dropping an octave. "They didn't buy anything. They opened a door that shouldn't exist, threw a casing—or a spell, or whatever term you prefer—at the victim, and then stepped back inside." Eva walked over, her eyes wide behind her glasses. She reached out, her hand hovering over the tiles. "A pocket dimension? Or a fold in the ley line? That requires massive power. The kind of power that..." She trailed off. "That what?" Harlow pressed. "That the Market doesn't allow. The wards here suppress high-level magic to prevent... well, exactly this." Harlow looked at the compass in her hand. The needle
was vibrating
now, a low buzzing sound emanating from the brass casing. "The wards didn't fail," Harlow said, the pieces clicking together in her mind with the cold logic of a case file. "They were bypassed. Someone had a key." She turned to look at Eva. "Your friends. The ones you research with. Where were they tonight?" Eva flinched. "Aurora? She was at the shop. I swear. This has nothing to do with them." "You're a bad liar, Ms. Kowalski. You tuck your hair behind your ear when you're nervous." Eva’s hand froze halfway to her temple. She lowered it
slowly
. "It’s not them, Harlow. They break rules, yes, but they don't kill." "Everyone kills given the right motivation," Harlow said, pocketing the compass. "This victim was a fence, wasn't he? Moving stolen goods?" "He dealt in artifacts," Eva admitted quietly. "Things dug up from places best left alone." Harlow looked back at the petrified man. "He found something. Something he thought he could sell. But the buyer didn't want to pay." She walked back to the victim and examined the stall's surface. In the center of the table,
amidst
the dust, was a circular clean spot the size of a grapefruit. "Something was taken," Harlow said. "He had it right here on the table." She looked at the compass again. The needle hadn't moved. It was still accusing the wall. Harlow walked to the wall and pressed her hand against the cold tiles. She expected solid stone, but for a fleeting second, the surface rippled under her palm like surface tension on water. She jerked her hand back. The sensation was electric, a static shock that traveled up her arm and settled in her teeth. "It's not a door," Harlow realized. "It's a residue." Eva gasped. "The compass isn't pointing at a rift. It's attuned to the specific signature of the energy that passed through here. It’s pointing at the *trail*." "So, if I follow where this needle points..." "It will lead you to whatever caused the breach," Eva finished. "Or whoever." Harlow looked down the dark tunnel. The needle shifted
slightly
, correcting its course as she moved, pointing deeper into the blackness of the abandonment, away from the wall now that the immediate signature had faded. It wanted her to go deeper into the tunnel system. "This wasn't a transaction," Harlow said, her voice hard. "It was a retrieval operation. Military precision. In and out through a wall, secure the asset, neutralize the witness." She turned to Eva. "Go home, Eva. Lock your door." "You're going after them?" Eva asked, horror dawning on her freckled face. "Harlow, if they can turn a man to stone with a gesture..." "Then they clearly have something to hide," Harlow cut in. She pulled her coat tighter, her hand brushing the holster at her hip—a mundane weapon for a magical war, but it was all she had. "And I have a badge that says I'm stupid enough to ask what it is." Harlow turned and began simply walking into the dark, following the trembling brass needle. She didn't look back to see if Eva obeyed. She knew the girl wouldn't leave. Curiosity was a more dangerous disease than anything sold in this market. As she walked, the needle steadied. It pointed straight ahead, into the suffocating dark of the tunnel. Harlow’s thumb brushed the face of the compass. She thought of Morris, and the hole in the world that had swallowed him. "One step at a time," she whispered to the damp air. The hunt was on.
created_at
"2026-02-17T02:41:48.105965+00:00"
2/17/2026, 2:41:48 AM
model
"google/gemini-3-pro-preview-20251117"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3248
moderation_latency
(null)
generation_time
48628
tokens_prompt
923
tokens_completion
3404
native_tokens_prompt
883
native_tokens_completion
3955
native_tokens_completion_images
0
native_tokens_reasoning
1395
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
0.049226
router
(null)
provider_responses
0
status
200
is_byok
false
latency
3248
endpoint_id
"c9badacd-c552-40a2-86e6-4b4e8dd4318f"
provider_name
"Google AI Studio"
model_permaslug
"google/gemini-3-pro-preview-20251117"
api_type
"completions"
id
"gen-1771296058-PJV76lBrFG6RWsXPnRnW"
upstream_id
(null)
total_cost
0.049226
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
23
adverbTagCount
2
adverbTags
0
"Harlow said quietly [quietly]"
1
"Eva admitted quietly [quietly]"
78.8023%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1887
totalAiIsmAdverbs
4
found
0
adverb
"slightly"
count
2
1
adverb
"slowly"
count
1
2
adverb
"really"
count
1
highlights
0
"slightly"
1
"slowly"
2
"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)
78.8023%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1887
totalAiIsms
4
found
0
word
"facade"
count
1
1
word
"amidst"
count
1
2
word
"echoing"
count
1
3
word
"etched"
count
1
highlights
0
"facade"
1
"amidst"
2
"echoing"
3
"etched"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"clenched jaw/fists"
count
1
highlights
0
"clenched her jaw"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
117
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
0
narrationSentences
117
filterMatches
0
"watch"
hedgeMatches
(empty)
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
156
matches
0
"monitoring—that clique"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
66
mean
28.48
std
18.41
cv
0.646
sampleLengths
0
70
1
53
2
71
3
17
4
73
5
3
6
38
7
6
8
17
9
70
10
47
11
23
12
7
13
64
14
26
15
38
16
10
17
21
18
47
19
33
20
17
21
19
22
29
23
4
24
58
25
35
26
21
27
14
28
20
29
10
30
45
31
15
32
33
33
2
34
27
35
14
36
41
37
36
38
41
39
40
40
4
41
16
42
22
43
28
44
17
45
17
46
16
47
23
48
21
49
15
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
5
totalSentences
117
matches
0
"was irritated"
1
"was seated"
2
"been calcified"
3
"was settled"
4
"was etched"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
3
totalVerbs
220
matches
0
"was monitoring"
1
"wasn't spinning"
2
"was vibrating"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1234
adjectiveStacks
0
stackExamples
(empty)
adverbCount
36
adverbRatio
0.029173419773095625
lyAdverbCount
21
lyAdverbRatio
0.017017828200972446
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
156
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
156
mean
12.05
std
7.86
cv
0.652
sampleLengths
0
15
1
12
2
18
3
25
4
10
5
1
6
3
7
3
8
36
9
35
10
8
11
7
12
21
13
9
14
8
15
21
16
16
17
16
18
20
19
3
20
23
21
15
22
6
23
5
24
12
25
32
26
31
27
7
28
4
29
12
30
31
31
15
32
8
33
7
34
13
35
8
36
16
37
13
38
14
39
12
40
6
41
8
42
9
43
11
44
18
45
4
46
6
47
21
48
4
49
12
40.3846%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
17
diversityRatio
0.3076923076923077
totalSentences
156
uniqueOpeners
48
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
23
fancyCount
17
fancyTags
0
"she muttered to the empty dark, stepping through (mutter step)"
1
"Harlow said, stepping past her to look at the body (say, step look)"
2
"Harlow noted, pulling a pair of nitrile gloves from her pocket (note, pull)"
3
"Eva corrected, crouching down beside the statue (correct, crouch)"
4
"Harlow said quietly (say quietly)"
5
"Eva insisted (insist)"
6
"Eva breathed, leaning in (breathe, lean in)"
7
"Harlow deduced, looking back at the statue (deduce, look back)"
8
"Harlow said, her voice dropping an octave (say, drop)"
9
"pressed (pressed)"
10
"Harlow said, the pieces clicking together in her mind with the cold logic of a case file (say, click)"
11
"Harlow said, pocketing the compass (say, pocket)"
12
"Eva admitted quietly (admit quietly)"
13
"Harlow realized (realize)"
14
"Eva finished (finish)"
15
"Harlow cut in (harlow cut in)"
16
"she whispered to the damp air (whisper)"
88.1170%