NC Bench
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Run: 2026-02-17-01KHMQFJPG80XZ0KPATVS0HP3X
Run Details
Model:
Gemini 2.5 Pro
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
40.8s
Cost:
$0.038026
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="4412" name="Aurora Carter" aliases="Rory, Laila, Aurora, Carter, Malphora" pronouns="she/her" species="Human" storyRole="Protagonist"> <eyeColor>bright blue</eyeColor> <hair>straight shoulder-length black</hair> <height>5'6"</height> <age>25</age> <scar>small crescent-shaped scar on her left wrist from a childhood accident</scar> <description>Aurora, referred to by her friends as Rory, is cool-headed, intelligent, and known for quick out-of-the-box thinking.</description> <backstory>Born in Cardiff to an Irish barrister father (Brendan Carter) and Welsh teacher mother (Jennifer Carter née Ellis), Rory reluctantly pursued Pre-Law at Cardiff University. She fled to London at the behest of her childhood friend Eva after leaving an abusive ex named Evan. By day, Rory works part-time as a delivery person for Yu-Fei Cheung's Golden Empress restaurant. She lives in a flat above Silas' bar.</backstory> </character> <location id="861" name="The Fae Grove" aliases="Isolde's grove, Richmond grove, the Grove" realm="Earth (Fae-touched)"> <parkLocation>Richmond Park</parkLocation> <standingStones>ancient oak standing stones mark the boundary</standingStones> <timeBehavior>time moves differently — an hour inside can be minutes or days outside</timeBehavior> <flora>wildflowers bloom year-round</flora> <description>A hidden clearing that exists in a pocket between Earth and the Fae realm.</description> </location> <item id="2001" name="Heartstone Pendant" aliases="the pendant, Heartstone" type="Artifact" origin="Dymas"> <gemstoneColor>deep crimson</gemstoneColor> <chainMaterial>silver chain</chainMaterial> <size>roughly the size of a thumbnail</size> <behavior>pulses faintly with warmth when near a Hel portal</behavior> <glow>faint inner glow</glow> <description>Given to Aurora by an unknown benefactor.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the horror genre. A character is alone in a strange, isolated place at night. They came here for a reason, but something feels off from the moment they arrive. The wrongness builds slowly — sounds that shouldn't be there, things that move at the edge of vision, a growing certainty that they are not alone. Build tension through restraint, not through gore. Use the codex entries above as your world reference for the character and setting. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
The air changed the moment Aurora pushed past the final curtain of ivy. One step and the distant, muted growl of London vanished, swallowed by a silence so absolute it felt like a pressure against her eardrums. She paused, letting her eyes adjust to the deep,
velvet
dark of the Grove, her hand unconsciously rising to the Heartstone pendant at her throat. The silver chain was cold against her skin, a
stark
contrast to the faint, persistent warmth of the crimson stone nestled in its setting. Moonlight, thin and sterile, filtered through the canopy of ancient, interlocking branches, painting the clearing in shades of silver and impenetrable black. The boundary
was marked
by two towering oaks, their trunks gnarled into the semblance of old men, their bark like deeply
furrowed
skin. They were the standing stones of this place, the silent
sentinels
. She stepped between them, and the world behind her ceased to exist. This was the Fae Grove. Isolde’s Grove. And it
was waiting
. She came here for answers, for a path she couldn’t find in the waking world of exhaust fumes and spreadsheets. But the easy peace she’d felt on her last visit—a sun-drenched afternoon that felt like a dream—
was gone
. The night had sharpened the edges of this place, honed them. The
very
air, thick with the cloying sweetness of year-round bluebells and damp earth, felt watchful. Rory took a cautious step forward, the soft loam of the forest floor muffling her bootfall. She scanned the clearing. E
very
thing was too still. The ferns were perfect, unmoving lace. The wildflowers glowed with an unnatural luminescence, their colors—deep violets, impossible blues—too vibrant for the pale light. Nothing rustled in the undergrowth. No owls, no nightjars, not even the scuttling of a beetle. It was a perfect, lifeless diorama, and she was the only living thing to spoil it. *Crack.* The sound was sharp, definitive. A snapped twig, just to her left. Rory froze, e
very
muscle tensed. Her gaze darted towards the noise, finding only a thicket of thorn bushes, their barbs
glistening
like silver needles. A fox, probably. A badger. Richmond Park was full of them. She forced the air from her lungs in a slow, measured breath, her fingers tracing the tiny, crescent-shaped scar on her left wrist. An old habit for a new fear. “Get a grip, Carter,” she whispered, the sound of her own voice shocking in the
profound
quiet. She pressed on, deeper into the woods, following a path that was more memory than reality. The trees closed in, their branches weaving a dense ceiling that blotted out the moon. She
was plunged
into a deeper darkness,
navigating
by the feel of the ground under her feet and the faint, ruby glow of her pendant, which cast just enough light to illuminate the space a foot in front of her face. It painted her hands in a soft, bloody light. A
flicker
of movement at the edge of her vision. She snapped her head to the right. Nothing. Just the hulking silhouette of another ancient oak, its lower branches hanging like tattered arms. She stared, challenging the shadow to move again. It remained stubbornly still. It was just a trick of the light, her brain filling in the blanks of the darkness with imagined threats. She was an intelligent, cool-headed woman. She knew how fear worked. It was a primal, irrational thing, and she would not be ruled by it. She took another step, and a soft, dragging sound started in tandem with her own. *Shhhhufff-drrrag.* Like heavy wool
being pulled
over a floor of dead leaves. Rory stopped. The sound stopped. Her heart hammered against her ribs, a frantic bird beating its wings in a cage. She held her breath, listening, straining to hear past the blood roaring in her ears. The silence pressed in again, heavier than before. Weighted. Expectant. She took a slow, deliberate step. *Shhhhufff-drrrag.* It was behind her now. To her right. It
was pacing
her, staying just out of sight in the suffocating dark. This wasn't a fox. A fox was silent. This was deliberate. A cold knot formed in her stomach. The urge to run, to bolt blindly through the trees, was a physical force. She fought it down, her knuckles white where she gripped the strap of her satchel. Running was a mistake. Running was for prey. Her out-of-the-box thinking, the quality her friends always praised, offered nothing. There was no box here. There were only the trees, and the dark, and the sound that followed her. The air grew colder, a sudden, damp chill that had nothing to do with the night. Gooseflesh prickled on her arms. The sweet scent of the flowers
was gone
, replaced by the smell of wet stone and cold, turned earth, like an open grave. She glanced down at the pendant. Its crimson light seemed dimmer now, struggling against the encroaching black. She had lost the path. Or the path had lost her. The trees
seemed to
have shifted, closing ranks. They were all the same, indistinguishable giants of bark and shadow, and she was hopelessly, terrifyingly lost. Disorientation washed over her, a dizzying sensation of
being untethered
from time and space. How long had she been in here? Minutes? An hour? The time-dilation of the Grove, once a curious anecdote, was now a source of mounting panic. A whisper slithered through the air. It was not the wind; the air was as still as a tomb. It was a sound without a source, a high, sibilant hiss that coiled around her, seeming to come from e
very
where at once. It wasn't a word, not a language she could comprehend, but the intent behind it was unmistakable. Malice. Ancient and patient. This was wrong. She had to get out. She turned, trying to retrace her steps, but the forest was a fluid, changing maze. She stumbled into a small clearing, a circle of unnaturally bare earth ringed by stooping hawthorns. The moonlight found a hole in the canopy here, illuminating the space in a
stark
, theatrical spotlight. And in the center of that light, she knew she was no longer just
being followed
. She
was being
watched. It was a physical sensation, a pressure on the back of her neck, a crawl of insects up her spine. The feeling of eyes on her was so intense, so focused, she felt pinned in place. Her breathing became a shallow, ragged thing. Slowly, her body rigid with a terror that felt like paralysis, she forced herself to turn, to scan the impenetrable wall of the surrounding treeline. Her gaze swept over the dark, tangled undergrowth, the gnarled roots, the impossibly deep shadows between the trunks. Nothing. Nothing but trees. Her own mind
was betraying
her, amplifying e
very
fear, e
very
childhood nightmare of the dark. It had to be. The whisper came again, closer this time, a cold breath against her ear. It coalesced into a sound, a parody of a sound. *A-ror-a.* Her name. Stretched and broken. Her eyes snapped to the base of the largest oak, directly opposite her. To a patch of shadow that was wrong. It was darker than the others, a void in the night where the moonlight
seemed to
bend and be consumed. It was a hole in the world. And from the heart of that absolute black, two pinpricks of light ignited. They were not the reflective green-gold of an animal’s eyes caught in the light. They were a cold, pale silver, like distant, dead stars. They were self-
luminous
, intelligent. And they
were fixed
on her. They did not blink. They did not move. They simply watched. The shuffling sound started again, a slow, inexorable drag from the base of that tree. It
wasn't circling
her anymore. It
was coming
for her. Her scream died in her throat, a strangled gasp for air that wouldn't come. Her feet
were fused
to the cold earth. Her cool head, her quick thinking—they were useless artifacts from another world. Here, in the heart of the Grove, there was only the watcher in the dark, the ancient, patient thing emerging from the shadows, and the bone-deep, marrow-freezing certainty that she was about to die.
created_at
"2026-02-17T02:40:25.792624+00:00"
2/17/2026, 2:40:25 AM
model
"google/gemini-2.5-pro"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3393
moderation_latency
(null)
generation_time
40788
tokens_prompt
812
tokens_completion
3076
native_tokens_prompt
773
native_tokens_completion
3706
native_tokens_completion_images
0
native_tokens_reasoning
1901
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
0.03802625
router
(null)
provider_responses
0
status
200
is_byok
false
latency
3393
endpoint_id
"b261d15b-95ce-4c8c-8bce-00eb0dc1ff77"
provider_name
"Google AI Studio"
model_permaslug
"google/gemini-2.5-pro"
api_type
"completions"
id
"gen-1771295984-wJkked98UwSMLS9JGmCn"
upstream_id
(null)
total_cost
0.03802625
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
1
adverbTagCount
0
adverbTags
(empty)
85.5700%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1386
totalAiIsmAdverbs
2
found
0
adverb
"slowly"
count
1
1
adverb
"very"
count
1
highlights
0
"slowly"
1
"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)
27.8499%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1386
totalAiIsms
10
found
0
word
"luminous"
count
1
1
word
"sentinels"
count
1
2
word
"flicker"
count
1
3
word
"glistening"
count
1
4
word
"velvet"
count
1
5
word
"profound"
count
1
6
word
"stark"
count
2
7
word
"furrowed"
count
1
8
word
"navigating"
count
1
highlights
0
"luminous"
1
"sentinels"
2
"flicker"
3
"glistening"
4
"velvet"
5
"profound"
6
"stark"
7
"furrowed"
8
"navigating"
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
133
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
2
narrationSentences
133
filterMatches
(empty)
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
133
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
32
mean
42.88
std
31.17
cv
0.727
sampleLengths
0
86
1
68
2
11
3
65
4
79
5
1
6
77
7
17
8
81
9
10
10
80
11
27
12
5
13
40
14
6
15
1
16
76
17
30
18
61
19
76
20
6
21
56
22
76
23
68
24
41
25
23
26
1
27
5
28
61
29
34
30
11
31
93
88.2206%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
9
totalSentences
133
matches
0
"was marked"
1
"was gone"
2
"was plunged"
3
"being pulled"
4
"was gone"
5
"being untethered"
6
"being followed"
7
"were fixed"
8
"were fused"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
6
totalVerbs
207
matches
0
"was waiting"
1
"was pacing"
2
"was being"
3
"was betraying"
4
"wasn't circling"
5
"was coming"
82.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1382
adjectiveStacks
3
stackExamples
0
"tiny, crescent-shaped scar"
1
"intelligent, cool-headed woman."
2
"bone-deep, marrow-freezing certainty"
adverbCount
48
adverbRatio
0.03473227206946455
lyAdverbCount
16
lyAdverbRatio
0.011577424023154847
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
133
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
133
mean
10.32
std
7.36
cv
0.713
sampleLengths
0
13
1
24
2
25
3
24
4
22
5
23
6
11
7
12
8
5
9
2
10
4
11
20
12
18
13
11
14
16
15
16
16
4
17
4
18
6
19
17
20
5
21
11
22
16
23
1
24
5
25
7
26
5
27
19
28
3
29
2
30
6
31
23
32
7
33
17
34
16
35
15
36
41
37
9
38
10
39
7
40
1
41
15
42
8
43
4
44
20
45
6
46
5
47
14
48
15
49
12
34.9624%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
20
diversityRatio
0.2857142857142857
totalSentences
133
uniqueOpeners
38
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
1
fancyCount
1
fancyTags
0
"she whispered, the sound of her own voice shocking in the profound quiet (whisper, shock)"
83.4472%