NC Bench
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Run: 2026-02-17-01KHMPG96V1KHJZ2X3AXEE76TX
Run Details
Model:
GPT-4o Mini (temp=1)
Test:
Bad Writing Habits
Scenario:
Thriller: chase through city streets
Duration:
14.9s
Cost:
$0.001017
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="4417" name="Tomás Herrera" aliases="Tommy, Tomás, Herrera" pronouns="he/him" species="Human" storyRole="Support"> <eyeColor>warm brown</eyeColor> <hair>short curly dark brown</hair> <height>5'10"</height> <age>29</age> <skinTone>olive skin</skinTone> <scar>scar running along his left forearm from a knife attack</scar> <medallion>Saint Christopher medallion around his neck</medallion> <birthplace>Seville, Spain</birthplace> <description>A former paramedic who provides off-the-books medical care for the clique.</description> <backstory>Born in Seville, Spain. He moved to London to work for the NHS but lost his license after administering unauthorized treatments to supernatural patients.</backstory> </character> <location id="854" name="The Raven's Nest" aliases="the Nest, Raven, Silas' bar" realm="Earth"> <signColor>distinctive green neon sign above the entrance</signColor> <secretRoom>hidden back room accessible through a bookshelf, used for clandestine meetings</secretRoom> <description>A dimly lit bar in Soho, London. The walls are covered with old maps and black-and-white photographs.</description> </location> <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> </codex> Write a fully fleshed out scene of at least 1000 words in the thriller genre. A detective is pursuing a suspect through rain-soaked city streets at night. The chase takes them from the street level down into an underground market. The detective must decide whether to follow the suspect into unfamiliar and potentially dangerous territory. 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 rain fell hard against the pavement, a relentless torrent that turned the streets of Soho into a shimmering
mosaic
of blurred lights and shadowy figures. Detective Harlow Quinn sprinted down Great Windmill Street, her worn leather
watch
slapping against her wrist with each frantic step. Dark curls of salt-and-pepper hair clung to her forehead, the air thick with the scent of moisture and asphalt as she focused on the fleeing silhouette ahead. “Stop!” Her voice cut through the night, harsh and urgent. The suspect—a wiry man cloaked in a damp black jacket—glanced over his shoulder, eyes wide with something akin to dread. He quickened his pace, darting into a darker alley. Quinn pushed herself harder, her sharp jaw set in determination. She could almost taste the adrenaline spiking her pulse, a rush that drove her onward, even as deep-seated memories of her partner, DS Morris, clawed at the edges of her focus. She couldn't think of him now. Not with this lead slipping away. As the man turned the corner, Quinn skidded to a halt, nearly losing her footing on the slick cobblestones. She confronted the mouth of the alley, a void that
seemed to
drink in light and sound. The walls
were streaked
with graffiti, the air a chaotic blend of city sounds muffled by the rain. An instinct burned within her—a survival instinct honed over eighteen years on the force, whispering warnings as her gut twisted. This was no ordinary chase. The underbelly of Soho was alive with disturbances she had only begun to comprehend. “Where are you going?” she shouted. He didn’t answer, just disappeared into the shadows, but she could hear his
footsteps
echo
down the cobbled pathway. Without further hesitation, Quinn advanced into the alley, the walls pressing in as if the city itself dared her to turn back. Deeper into the darkness, the rain softened to a dull patter muffled by the roofs above. The alley twisted and turned as if testing her resolve, but she pressed on, heart hammering against her ribs. What the hell is wrong with this man? She thought of the reports—an increase in strange occurrences, unexplainable disappearances. The sensation of something supernatural
loomed
larger in her mind with each step. Suddenly, the narrow passageway opened up into a vast underground space. Quinn’s shoes crunched on the damp ground, the moisture rising in a musty cloud. Flickering bulbs illuminated entrancing murals on the walls—ancient scenes of
otherworldly
beings, arcane symbols, and figures whose kind she couldn’t remember from any case file. Sensing a shift in energy, she reached for her service sidearm, fingers grazing the cold metal as she scanned the room. The air crackled with
anticipation
, thick like fog, and she felt it—the pulse of the Veil Market. She had heard whispers about it, murmurs concealed in shadows. A place where the boundaries of reality bent and twisted, only accessible when the moon beckoned. Yet here she was, face to face with its threshold, feeling the gravity of secrets that lay hidden beneath London’s feet. Focus, Quinn. The suspect was still somewhere, fleeing between the stalls of oddities and enchantments. She spotted flashes of color—vials carved from opal, crystals pulsating with inner light. Off to one side, a seller grinned at her from beneath wild hair, showcasing an array of bone charms. Quinn’s
eyes narrowed
, heart racing as she beheld the shifting figures that flitted through the stalls, traders half in shadow, half in light, exchanging oddities like currency. She'd seen stranger things in her day, but something about this felt different, dangerous, and yet intoxicating. A sudden movement caught her attention. The suspect! He darted into a darkened corner of the market, pushing through a lime-green curtain that screeched across its rail like nails on a chalkboard. Quinn followed instinctively, feet moving before her brain could catch up. She slipped through the curtain, ignoring the pocket of cool air that washed over her, and found herself in a narrow corridor lined with heavy wooden doors. “Stop! I swear, I’ll shoot!” she yelled, the threat escalating in a desperate bid to halt him. She took cautious steps forward, half-tempted to push through one of the doors, but a sickening awareness froze her in place. The market could be a breeding ground for peril—she was acutely aware of the supernatural nuances lying just beneath the surface. The man she pursued ducked into the far end of the hallway, pulse quickening as she pressed onward, knees bent, ready for anything. Quinn could hear the thrum of bass from the market outside, mixing with the distant murmur of hushed bartering—an energy that felt both addictive and
foreboding
. She reached the last door, a sapwood slab that showed signs of wear, and paused, hand hovering just above the handle. What lay behind it was uncertain, but
apprehension
clawed at the back of her throat. Quinn leaned in closer, catching snippets of conversation flitting through the door like shimmering motes of dust. “...last month’s cargo... valuable... unexpected... the other side...” Their words floated through her mind, vague but pulsing with urgency. With a deep breath, she pushed through the door, disgraced by the uncertainty of her own actions, and entered a dimly lit room where the air swirled with scents both spicy and earthy. A table was set in the center, timber heavy laden with an array of items that might as well be plucked from the fringes of a fever dream: a jar of preserved dragonfly wings,
gleaming
stones that hummed
softly
, and a dagger blacker than the night sky. Quinn’s gaze snapped around the room, fingers tightening around her weapon as she steadied her nerves, the
echo
es of her decision heavy in her mind. Should she confront this world of the unknown, chase the suspect straight into the abyss, or turn back to the safety of familiar streets? The
weight
of her badge pressed down hard in her pocket, but it was her commitment to justice—and the restless ghost of Morris—that pulled her deeper into the undercurrents of intrigue. “Where’s the damn man?” she hissed, scanning the faces that turned toward her with bemusement. Some
were cloaked
in shadow, others curious, yet the intensity of their gaze added to her unease. She wasn’t just a detective here; she was an uninvited guest in a realm ruled by rules she had yet to grasp. It wasn’t just about the pursuit anymore. It was about a choice—one that could either lead her to answers or bury her in the labyrinth of darkness—and she could feel the invisible thread of destiny weaving tighter around her. As quiet laughter
echo
ed through the air, Quinn squared her shoulders and pushed away from the threshold. She would confront the abyss, face the unknown, and reclaim what had
been wronged
. Nothing could deter her from the truth—nothing, not even the labyrinthine paths of this hidden market, not even the secrets dripping from the rafters like the rain falling above. The chase wasn’t over; it had only just begun.
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
2
adverbTagCount
0
adverbTags
(empty)
83.1791%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1189
totalAiIsmAdverbs
2
found
0
adverb
"softly"
count
1
1
adverb
"suddenly"
count
1
highlights
0
"softly"
1
"suddenly"
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
1189
totalAiIsms
12
found
0
word
"mosaic"
count
1
1
word
"gleaming"
count
1
2
word
"foreboding"
count
1
3
word
"otherworldly"
count
1
4
word
"loomed"
count
1
5
word
"anticipation"
count
1
6
word
"apprehension"
count
1
7
word
"weight"
count
1
8
word
"footsteps"
count
1
9
word
"echo"
count
1
10
word
"echoed"
count
1
11
word
"echoes"
count
1
highlights
0
"mosaic"
1
"gleaming"
2
"foreboding"
3
"otherworldly"
4
"loomed"
5
"anticipation"
6
"apprehension"
7
"weight"
8
"footsteps"
9
"echo"
10
"echoed"
11
"echoes"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"eyes widened/narrowed"
count
1
highlights
0
"eyes narrowed"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
66
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
1
narrationSentences
66
filterMatches
0
"watch"
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
67
matches
(empty)
36.0675%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
17
mean
68.82
std
19.01
cv
0.276
sampleLengths
0
73
1
92
2
93
3
47
4
67
5
71
6
64
7
91
8
70
9
59
10
85
11
25
12
91
13
80
14
54
15
39
16
69
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
3
totalSentences
66
matches
0
"were streaked"
1
"were cloaked"
2
"been wronged"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
0
totalVerbs
186
matches
(empty)
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1167
adjectiveStacks
0
stackExamples
(empty)
adverbCount
31
adverbRatio
0.026563838903170524
lyAdverbCount
12
lyAdverbRatio
0.010282776349614395
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
67
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
67
mean
17.46
std
8.33
cv
0.477
sampleLengths
0
26
1
20
2
27
3
10
4
20
5
9
6
10
7
31
8
6
9
6
10
19
11
17
12
18
13
20
14
5
15
14
16
6
17
19
18
22
19
16
20
19
21
8
22
11
23
13
24
11
25
14
26
25
27
21
28
17
29
10
30
16
31
21
32
2
33
13
34
13
35
19
36
27
37
17
38
6
39
2
40
24
41
11
42
27
43
17
44
21
45
21
46
23
47
26
48
21
49
15
67.6617%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
3
diversityRatio
0.43283582089552236
totalSentences
67
uniqueOpeners
29
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
2
fancyCount
2
fancyTags
0
"shouted (shout)"
1
"hissed (hiss)"
81.5828%