NC Bench
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Run: 2026-02-17-01KHMPE8X106YA34JXPJEFPH3M
Run Details
Model:
GPT-4o Mini (temp=1)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
26.1s
Cost:
$0.000998
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 damp air of the abandoned Tube station clung to Detective Harlow Quinn’s skin as she stepped into the inky shadow of the long-forgotten platform. Flickering fluorescent lights buzzed overhead, casting a sickly glow that barely illuminated the scene before her. The smell of mildew mixed with something metallic — blood, perhaps. She inhaled deeply, forcing herself to focus through the remnants of her late lunch that threatened to rise. At the far end of the platform, her colleague, Detective Leo Parker, squatted over something on the ground, his face scrunched in concentration. The
flicker
of his flashlight danced across the concrete, illuminating a series of strange markings
etched
into the walls, like runes lost to time. Quinn wiped a bead of sweat from her brow, her gaze darting around the station. The air pulsed with an energy that was out of place, sparking a nagging sensation in her gut. Something was
very
wrong. “Over here, Quinn,” Leo called, drawing her closer. As she approached, he gestured at a pool of dark fluid pooling around an object that had no business being here—an old leather satchel, crumpled and half-hidden beneath a tangle of discarded newspapers. Quinn rose to her full height, her jaw tightening. She scanned the area, recognizing the signature of someone who had made a hurried departure. “What do you make of this?” Leo asked, his voice hushed, a mix of awe and
apprehension
. Quinn crouched beside the satchel and plucked it from the ground with dry fingers, feeling the
weight
of it against her palm. “Someone didn’t want to be found.” She opened it, the zipper barely budging against the rust that clung to it like a bad habit. Inside were scraps of parchment, hastily scribbled notes, and torn pages from old tomes. “Looks like someone was doing a little light reading in the occult,” Leo said, trying to lighten the mood, but Quinn merely frowned as she sifted through the contents. “Or trying to hide something much worse.” As she removed a thick, yellowed page, the symbols she recognized from her years of experience with magical anomalies screamed out: binding rituals. The ink was dark, flowing like blood in
intricate
patterns across the paper. “This isn’t just any old research, Leo. These pages are a map. A guide.” “And the blood?” he asked, eyebrows raised as he nodded toward the growing puddle beneath the satchel. Quinn stood, eyeing the markings. “It doesn’t fit. Blood usually speaks of a struggle or desperation, but there’s no sign of forced entry or anything disturbed other than this.” She pointed at the satchel, frowning. “And what’s a satchel doing down here? This station hasn't seen foot traffic in years.” Leo followed her gaze, his confidence faltering. “You think someone intentionally left it? To lead us somewhere?” “Or to cover their tracks,” she replied, her brow
furrowing
. “I need to talk to someone who knows the area better — maybe find out if any missing persons align with this spot.” “You could call Eva,” Leo suggested, pulling out his phone. “She knows e
very
thing about the subcultures in this city. If there’s anything to be found, she’ll know.” Quinn hesitated. Eva Kowalski was friendly, trusted; she was also an occult researcher burdened by a fascination with the
very
things Quinn had distanced herself from since the loss of her partner, DS Morris. “I think it’s too dangerous to involve her,” Quinn said finally, shoving the satchel back to the ground. “If whatever took Morris is responsible for this, I wouldn’t put her at risk.” But the pleading in Leo’s eyes made Quinn relent. “Alright. Call her. But keep it to the facts. We can't risk scaring her off.” Leo nodded, tapping furiously on the screen. The silence between them thickened as Quinn’s mind buzzed with possibilities, piecing together the fragments of information like a misaligned puzzle. Was the blood here a lure? Had the bodies
been taken
elsewhere? Without realizing she was moving, Quinn stepped toward the edge of the platform, the light from her flashlight sweeping the deserted tunnel that yawned in the dark, eager to swallow the secrets hidden within. Each step forward sent tendrils of anxiety gracing her spine. Leo’s voice pulled her back. “Quinn!” She turned
sharply
. He
was pointing
up at the wall behind the satchel. “Look!” Drawing her flashlight toward the markings, she stepped closer and felt the hairs on the back of her neck prickle. These weren't just random symbols; they were protective sigils — the type used by those who dabbled in supernatural craft to guard against breaches. “Someone may have intended for whatever happened here to be hidden,” Quinn murmured, recognizing the faint signs of a rift. “Or to contain something. But it’s been broken. That’s where the blood comes in.” “Broken?” Leo
echoed
, sounding faintly incredulous. “You mean there’s an actual... rift?” “Yeah, a portal,” she replied, casting a quick look down the tunnel again. “But that doesn’t explain why we’d find human blood and these notes.” Her fingers danced over the leather of the satchel. “Something or someone used this passage. This leads somewhere larger.” “Larger?” Leo stepped back
slightly
. “So, what, you think they’re going to come back here?” Quinn could feel the
weight
of the unsettling atmosphere pushing down on her, squeezing out any bravado she
was trying
to maintain. “Maybe. If their plan disrupted, they might. It’s worth investigating. The Veil Market has been rumored to shift locations, and it’s about time for a full moon … This could be linked.” “Then we should definitely call in the cavalry,” Leo said, scratching his head. “We can't go in without backup, right?” Before Quinn could respond, a
flicker
ing light caught her eye deep within the tunnel. A pinpoint of illumination danced as if beckoning her forward, subsections of the darkness writhing like spirits beneath the surface. Instinct kicked in, compelling her to move, the pulse of a detective's intuition pushing her toward the unknown. The shadows shifted as she approached, her heart racing, blood rushing in her ears. “Forget backup,” she said, her voice low and fierce. “We need to see this for ourselves.” “Quinn—” Ignoring Leo, she stepped into the tunnel, drawn deeper into the whispers of the dark, where the rift lay waiting, its secrets open and inviting. A new thread of determination wove through her; the quiet, desperate promise to uncover the truth for Morris and anyone lost in the abyss that this mystery held. The riddle of the Veil, the truth veiled in shadows, lay just ahead, and she would not turn back now.
Evaluation details
Result
Evaluator
Details
Meta Data
42.4242%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
11
adverbTagCount
3
adverbTags
0
"Leo said, trying to lighten the mood, but Quinn merely frowned as she sifted through the contents [merely]"
1
"Quinn said finally, shoving the satchel back to the ground [finally]"
2
"she replied, casting a quick look down the tunnel again [again]"
63.6033%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1099
totalAiIsmAdverbs
4
found
0
adverb
"sharply"
count
1
1
adverb
"slightly"
count
1
2
adverb
"very"
count
2
highlights
0
"sharply"
1
"slightly"
2
"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)
27.2066%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1099
totalAiIsms
8
found
0
word
"flicker"
count
1
1
word
"intricate"
count
1
2
word
"apprehension"
count
1
3
word
"furrowing"
count
1
4
word
"weight"
count
2
5
word
"echoed"
count
1
6
word
"etched"
count
1
highlights
0
"flicker"
1
"intricate"
2
"apprehension"
3
"furrowing"
4
"weight"
5
"echoed"
6
"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
56
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
0
narrationSentences
56
filterMatches
(empty)
hedgeMatches
(empty)
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
73
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
32
mean
34.34
std
20.51
cv
0.597
sampleLengths
0
70
1
84
2
8
3
57
4
17
5
60
6
29
7
57
8
17
9
50
10
17
11
33
12
27
13
66
14
24
15
40
16
44
17
6
18
14
19
44
20
34
21
12
22
44
23
15
24
54
25
20
26
34
27
32
28
16
29
1
30
53
31
20
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
56
matches
0
"been taken"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
2
totalVerbs
154
matches
0
"was pointing"
1
"was trying"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
787
adjectiveStacks
0
stackExamples
(empty)
adverbCount
25
adverbRatio
0.03176620076238882
lyAdverbCount
12
lyAdverbRatio
0.015247776365946633
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
73
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
73
mean
15.05
std
8.47
cv
0.563
sampleLengths
0
25
1
16
2
11
3
18
4
23
5
24
6
15
7
18
8
4
9
8
10
33
11
9
12
15
13
17
14
22
15
24
16
14
17
29
18
30
19
13
20
14
21
17
22
5
23
30
24
15
25
7
26
10
27
10
28
23
29
10
30
17
31
2
32
32
33
18
34
14
35
9
36
15
37
7
38
21
39
6
40
6
41
34
42
10
43
5
44
1
45
3
46
10
47
1
48
20
49
24
98.1735%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
0
diversityRatio
0.589041095890411
totalSentences
73
uniqueOpeners
43
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
11
fancyCount
8
fancyTags
0
"Leo called, drawing her closer (call, draw)"
1
"Leo said, trying to lighten the mood, but Quinn merely frowned as she sifted through the contents (say, try lighten merely frown sift)"
2
"she replied, her brow furrowing (reply, furrow)"
3
"Leo suggested, pulling out his phone (suggest, pull out)"
4
"Quinn said finally, shoving the satchel back to the ground (say finally, shove)"
5
"Quinn murmured, recognizing the faint signs of a rift (murmur, recognize)"
6
"she replied, casting a quick look down the tunnel again (reply, cast)"
7
"Leo said, scratching his head (say, scratch)"
84.2004%