NC Bench
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Run: 2026-02-17-01KHMQNZQV0KMKG03PBBBVMA3G
Run Details
Model:
Qwen 3.5 Plus (2026-02-15)
Test:
Bad Writing Habits
Scenario:
Thriller: chase through city streets
Duration:
26.0s
Cost:
$0.004640
Provider:
Alibaba
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
Rain hammered the pavement of Soho, turning the streetlights into smeared halos of sickly orange. Detective Harlow Quinn didn't feel the cold biting through her trench coat; she only felt the burn in her lungs and the rhythmic thud of her boots against the wet asphalt. Her bearing was military precision even in a sprint, knees high, arms pumping, e
very
movement economical and lethal. She kept her eyes locked on the figure tearing away from her, a blur of dark fabric vanishing around the corner of a narrow alleyway. "Stop!" she shouted, the command lost instantly in the roar of a passing bus and the relentless drumming of the storm. The suspect didn't slow. They moved with an unnatural grace, skipping over puddles that should have soaked their trousers, dodging overflowing bins with prescient timing. Quinn's hand drifted to the holster at her hip, not to draw, but to reassure herself of its
weight
. Eighteen years on the force, decorated service, and nothing had prepared her for the weirdness that had stalked London since Morris died. Three years ago, her partner had vanished into a case that made no sense on paper, a case with supernatural origins she still couldn't articulate. She wouldn't let another one slip through the cracks. She took the corner hard, her salt-and-pepper hair plastered to her scalp, brown eyes scanning the gloom. The alley emptied onto a service road behind a row of shuttered shops. The suspect was there, twenty yards ahead, heading straight for the distinctive green neon sign of The Raven's Nest. It buzzed angrily against the rain, casting a ghostly emerald glow over the wet cobblestones. Quinn picked up the pace. She knew the place. Dimly lit, walls plastered with old maps and black-and-white photographs of people who looked like they knew too much. It was a known haunt for the fringe elements of the city, the kind of place where questions went unanswered and debts
were paid
in blood. But the suspect
wasn't heading
for the front door. They veered left, ducking under a low-hanging fire escape and sliding toward a heavy iron grate set into the ground near the building's foundation. Quinn skidded to a halt, her breath coming in sharp white clouds. The grate
was rusted
, marked with symbols that
seemed to
shift when she looked at them sideways. The suspect paused, glanced back at her, and then pried the grate open. A gust of air rushed up from below, smelling not of sewage or damp earth, but of ozone, burnt sugar, and something metallic, like old copper. The suspect dropped into the darkness. Quinn reached the edge of the opening. Below, a ladder descended into a blackness that
seemed to
swallow the rain before it could hit the rungs. This wasn't part of the official maps. This wasn't on any city schematic she'd ever studied. Her instinct, the one honed by nearly two decades of following procedure, screamed at her to call for backup, to secure the perimeter, to wait for daylight. But the memory of Morris flashed behind her eyes. The empty chair in the briefing room. The file marked 'Unexplained' gathering dust on her desk. She had waited then, too. She had followed protocol while something else took her partner. She checked her
watch
. The worn leather strap was slick with rain, the face glowing faintly in the green light. It was past midnight. If the rumors were true, if the whispers in the precinct about the shifting underground held any water, she
was running
out of time. Quinn holstered her thoughts along with her hesitation. She gripped the cold iron of the ladder and descended. The air grew thicker as she climbed down, the sound of the rain fading until it was nothing more than a distant memory. The ladder ended on a platform of packed dirt and stone. Before her stretched a cavernous space that defied the geometry of the London Underground. This was no abandoned Tube station, not in the way the city understood abandonment. Welcome to the Veil Market. Stalls constructed from driftwood, scrap metal, and what looked like bleached bone lined a wide thoroughfare. Lanterns fueled by blue flames hung from the vaulted ceiling, illuminating wares that made Quinn's stomach turn. Jars containing swirling mists, bundles of herbs that twitched when no one
was looking
, and books bound in skin that
seemed to
breathe. The crowd was a
tapestry
of the impossible. Figures in tattered cloaks haggled with entities that had too many limbs or faces that shifted like oil on water. Quinn pressed herself against the rough brick of the station wall, her hand tightening on her grip. She was a human woman in a world that clearly didn't welcome her kind, yet she moved with the same sharp authority she carried on the streets above. She scanned the crowd, her brown eyes narrowing. There, near a stall selling vials of liquid starlight, she saw him. Tomás Herrera. He wasn't the suspect she had chased, but he was the link. He stood near a vendor displaying strange, pulsating roots, his short curly dark brown hair damp from the humidity of the underground. He wore a simple jacket, but Quinn spotted the
glint
of the Saint Christopher medallion resting against his olive skin. She knew his file. Former paramedic, lost his license for treating patients the NHS couldn't explain. He ran an off-the-books clinic for this clique, the
very
group she suspected of dragging innocent people into this nightmare. Quinn
watch
ed as Tomás exchanged a handful of coins for a small bundle wrapped in
silk
. He turned, and for a split second, his warm brown eyes swept across the crowd. They didn't land on her—he was too distracted, too entrenched in this world—but she saw the scar running along his left forearm as he adjusted his sleeve. A knife attack, the file said. Likely from something that didn't use a standard blade. The suspect she had chased was nowhere in sight, melted into the throng. But Tomás was moving, weaving through the market with purpose. He
was heading
deeper into the station, toward a shadowed archway where the blue lantern light didn't reach. Quinn pushed off the wall. E
very
step she took felt like a violation of natural law. A creature with skin like cracked
porcelain
paused in its transaction to stare at her, its head tilting at an unnatural angle. Quinn didn't flinch. She fixed it with a glare that had silenced drunkards and hardened criminals alike, and the creature
quickly
looked away, muttering to its vendor. She trailed Tomás, keeping a dozen paces back. The market was loud, a
cacophony
of languages she didn't recognize and sounds that had no name. The smell of alchemical substances hung heavy, stinging her nose. She passed a stall selling banned alchemical substances, the jars labeled in scripts that hurt her eyes to read. Info-brokers whispered in corners, trading secrets for bones and memories. Tomás stopped before a heavy door reinforced with iron bands. He produced a token from his pocket—a small, carved piece of bone—and pressed it into a slot in the doorframe. The mechanism groaned, gears grinding with the sound of shifting tectonic plates, and the door slid open just wide enough for him to slip through. Quinn rushed forward, her heart hammering against her ribs. She reached the door just as it
began to
close. She slammed her shoulder against the iron, forcing it open a few inches more. The resistance was immense, as if the door itself was alive and pushing back. She gritted her teeth, the sharp line of her
jaw clenched
tight, and shoved with all her strength. She slipped through the gap just as the door sealed behind her with a final, booming click. The silence here was absolute. The market noise was cut off
completely
. She stood in a narrow corridor lit by a single flickering bulb. The air was stale, recycled. She checked her
watch
again. The second hand ticked steadily, a comforting rhythm in this alien place. She was in. No backup. No exit strategy. Just her, her gun, and eighteen years of instinct. Quinn drew her weapon, the metal cold and familiar in her hand. She moved forward, her steps silent on the concrete floor. She didn't know what lay ahead, what horrors Tomás Herrera
was protecting
, or what truth about Morris's death waited in the dark. But she was Detective Harlow Quinn, and she didn't turn back. The hunt had only just begun.
created_at
"2026-02-17T02:43:40.684354+00:00"
2/17/2026, 2:43:40 AM
model
"qwen/qwen3.5-plus-20260216"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
731
moderation_latency
(null)
generation_time
25939
tokens_prompt
914
tokens_completion
2127
native_tokens_prompt
872
native_tokens_completion
1788
native_tokens_completion_images
(null)
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
0.00464
router
(null)
provider_responses
0
id
"chatcmpl-c2507046-d409-9e66-b531-008df3230819"
status
200
is_byok
false
latency
730
endpoint_id
"71e0f6c3-7815-4734-92d3-8a04f3b0ca91"
provider_name
"Alibaba"
model_permaslug
"qwen/qwen3.5-plus-20260216"
api_type
"completions"
id
"gen-1771296194-cYmNSb3NfiPYGR5FVTHj"
upstream_id
"chatcmpl-c2507046-d409-9e66-b531-008df3230819"
total_cost
0.00464
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Alibaba"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
1
adverbTagCount
0
adverbTags
(empty)
79.0795%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1434
totalAiIsmAdverbs
3
found
0
adverb
"completely"
count
1
1
adverb
"quickly"
count
1
2
adverb
"very"
count
1
highlights
0
"completely"
1
"quickly"
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)
51.1855%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1434
totalAiIsms
7
found
0
word
"cacophony"
count
1
1
word
"tapestry"
count
1
2
word
"glint"
count
1
3
word
"porcelain"
count
1
4
word
"silk"
count
1
5
word
"jaw clenched"
count
1
6
word
"weight"
count
1
highlights
0
"cacophony"
1
"tapestry"
2
"glint"
3
"porcelain"
4
"silk"
5
"jaw clenched"
6
"weight"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"jaw/fists clenched"
count
1
highlights
0
"jaw clenched"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
105
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
2
hedgeCount
4
narrationSentences
105
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
0
totalSentences
105
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
27
mean
52.67
std
27.91
cv
0.53
sampleLengths
0
89
1
21
2
100
3
64
4
87
5
68
6
6
7
69
8
40
9
48
10
18
11
62
12
5
13
84
14
65
15
2
16
90
17
73
18
41
19
65
20
64
21
55
22
65
23
17
24
46
25
17
26
61
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
2
totalSentences
105
matches
0
"were paid"
1
"was rusted"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
5
totalVerbs
240
matches
0
"wasn't heading"
1
"was running"
2
"was looking"
3
"was heading"
4
"was protecting"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1433
adjectiveStacks
0
stackExamples
(empty)
adverbCount
41
adverbRatio
0.028611304954640614
lyAdverbCount
15
lyAdverbRatio
0.0104675505931612
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
105
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
105
mean
13.54
std
7.1
cv
0.524
sampleLengths
0
15
1
31
2
18
3
25
4
21
5
4
6
21
7
19
8
22
9
25
10
9
11
17
12
13
13
19
14
15
15
5
16
4
17
19
18
26
19
9
20
24
21
12
22
17
23
13
24
26
25
6
26
7
27
19
28
7
29
9
30
27
31
9
32
7
33
9
34
5
35
10
36
4
37
16
38
4
39
24
40
8
41
10
42
23
43
11
44
14
45
14
46
5
47
16
48
17
49
23
33.6508%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
18
diversityRatio
0.3047619047619048
totalSentences
105
uniqueOpeners
32
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
1
fancyCount
1
fancyTags
0
"shouted (shout)"
86.1127%