NC Bench
Overview
About
Tests
Models
Vendors
Run: 2026-02-17-01KHMQH29WJHEEF4TDMA1SVGMV
Run Details
Model:
Gemini 2.5 Pro
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
36.4s
Cost:
$0.034176
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 in Richmond Park was thin and cold, sharp with the promise of autumn frost. Rory pulled the collar of her jacket tighter, her breath pluming in the moonlight. She’d left the main path a hundred yards back, pushing through ferns that felt unnervingly like grasping hands in the dark. The instructions had been cryptic, just a time and a place scribbled on a note slipped under her door: *The ancient oaks. Midnight. Come alone.* Now, parting the last screen of rust-colored bracken, she saw them. The Grove. It opened before her, a perfect circle of meadow insulated from the rest of the world by a ring of colossal, gnarled oak trees. They weren’t just trees; they were monuments, their branches like crooked arms raised to a sky choked with an impossible number of stars. Here, away from the city's perpetual orange haze, the galaxy was a vivid smear. Moonlight, thick and syrupy, drenched the clearing, bleaching the color from a carpet of wildflowers that shouldn't have been blooming this late in the year. Something was wrong. It was a feeling that settled deep in her gut, a low-frequency hum of dread. The silence, for one. The park should have been alive with the nocturnal rustlings of foxes and badgers, the distant drone of a late-night flight into Heathrow. But here, in this circle of oaks, there was nothing. A
profound
, bottomless quiet that felt like the moment after a scream. She took a hesitant step onto the damp grass, her boots sinking
slightly
. Her purpose hardened her resolve. She was here to meet the person who had given her the Heartstone, the strange, crimson pendant that now rested against her sternum, cold as a pebble from a winter stream. It
was supposed
to warm near Hel portals. Here, it was inert, its faint inner light just a dull ember. No demons, then. That was something. She walked toward the center of the clearing, her eyes scanning the monolithic stones that stood between the oaks, their surfaces covered in a filigree of moss that looked black in the moonlight.
The air was heavy with
the perfume of the flowers—honeysuckle and foxglove and something else, something cloyingly sweet and unfamiliar. It was too much, an
oppressive
sweetness that coated the back of her throat. A twig snapped in the woods to her left. Rory froze, e
very
muscle tensing. Her gaze shot toward the source of the sound, a dense shadow pooled at the base of the largest oak. She waited, listening with a stillness she’d learned from years of
navigating
London’s less savory alleyways on her deli
very
scooter. The silence pressed back, absolute. A deer, maybe. Or a fox, careless in the quiet. She let out a slow, controlled breath, annoyed at her own jumpiness. Her ex, Evan, had loved to make her jump, to see her flinch. She’d sworn she was done with being afraid. She forced herself to move again, her gaze sweeping the perimeter. Nothing. Just the silent trees, the pale flowers, the ancient stones. She continued to the center of the grove, a spot where the grass was flatter, as if trodden down by centuries of… what? She didn't want to think about it. Pulling out her phone, she checked the time. 12:03. She was late, or they were. She resisted the urge to shine the phone’s torch into the surrounding darkness. It felt like a violation. Like announcing her presence to something that was trying its best to pretend it couldn’t see her. She shoved the phone back in her pocket, her fingers brushing the cool metal of her keys. The small, crescent-shaped scar on her left wrist gleamed faintly. She traced its familiar curve with her thumb, a nervous habit from childhood. Ground yourself, Carter. You’re in a bloody park, not a crypt. That’s when she heard the whisper. It was faint, a sibilant hiss woven into a gust of wind that stirred the tops of the oaks. But the air around her remained
perfectly
still. No breeze touched her face, no blades of grass shivered. The sound had been close. Intimate. Like someone leaning over her shoulder and breathing a single, venomous word she couldn't quite understand. Her
blood went cold
. “Hello?” Her voice was a dry rasp, swallowed instantly by the
oppressive
silence. “Is someone there?” Only the ringing in her ears answered. She
slowly
turned a full circle, her hand hovering near the small canister of pepper spray on her belt. She saw nothing. The grove was empty. The moonlight painted e
very
thing in
stark
relief, leaving no space for tricks of the eye. And yet, she couldn't shake the feeling. A prickling on her scalp, a
weight
in the air behind her. The distinct, unshakable certainty of being watched. Her eyes darted from shadow to shadow, from one hulking oak to the next. The bark of the trees
seemed to
twist into leering faces, the knots like vacant eyes. Her rational mind fought back, supplying explanations. Wind. An owl. Her own damn nerves getting the better of her. She’d been on edge ever since the pendant appeared, ever since she’d seen things that didn't belong in her world of rent payments and take-out orders. Then she saw it. Not a face in the bark, but movement. A
flicker
, at the
very
edge of her vision. To her right. A piece of the darkness detached itself from the base of a standing stone and slid into the deeper shadow of an oak. It was swift, unnaturally so. Not the bounding gait of a fox or the clumsy shuffle of a badger. It was a flowing, liquid motion. Rory’s breath hitched. She stared at the spot, her heart hammering a frantic rhythm against her ribs. She willed it to be a trick of the light, a product of a sleep-deprived imagination. But she knew what she had seen. She
began to
back away, her steps slow and deliberate, her eyes locked on the space where the shadow had disappeared. One step. Then another. The wet grass soaked through the canvas of her boots. The sweet scent of the flowers
seemed to
thicken, a suffocating perfume. She glanced down for a split second to check her footing and a gasp tore from her throat. The flowers. A clutch of white anemones, no more than ten feet from her, had turned. All of them. Their pale, cup-shaped heads were no longer tilted towards the moon. They
were swiveled
on their delicate stems, facing her directly. Watching her. Panic, cold and sharp, lanced through her. This wasn't natural. This wasn't her imagination. The quiet wasn't empty; it was patient. The stillness wasn't peaceful; it
was waiting
. She turned to run. The sound that stopped her wasn't a whisper or a snapped twig. It was a soft, wet tearing. The sound of old cloth ripping, or roots
being pulled
slowly
from damp earth. It came from behind her, from the direction she had come, cutting off her only path of escape. She was trapped. The ring of oaks no longer felt like a
sanctuary
, but a cage. An arena. The Heartstone was a lump of ice against her skin, offering no warmth, no warning, only a dead, chilling
weight
. Rory stood frozen in the center of the impossible clearing, caught between the shadow that flowed and the sound that tore. The starlight
seemed to
dim, as if a celestial hand
were drawing
a veil across the sky. The air grew colder, heavy with a sudden, grave-like dampness. She could feel the gaze of the thing in the woods, a
tangible
pressure against her back. She could feel the silent, attentive regard of the turning flowers. She was the only thing in this grove that was
truly
alive, and it felt like a trespass. Then came the breathing. It wasn't the sound of lungs, but of something else. A rhythmic, clicking exhalation, followed by a long, wet inhalation. It was e
very
where at once. It
resonated
from the ancient stones,
echoed
from the gnarled bark of the oaks,
seemed to
rise from the
very
soil beneath her feet. It was the sound of the Grove itself drawing a slow, hungry breath. And it
was getting
closer.
created_at
"2026-02-17T02:41:10.15252+00:00"
2/17/2026, 2:41:10 AM
model
"google/gemini-2.5-pro"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2114
moderation_latency
(null)
generation_time
36391
tokens_prompt
812
tokens_completion
2769
native_tokens_prompt
773
native_tokens_completion
3321
native_tokens_completion_images
0
native_tokens_reasoning
1544
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
0.03417625
router
(null)
provider_responses
0
status
200
is_byok
false
latency
2114
endpoint_id
"b261d15b-95ce-4c8c-8bce-00eb0dc1ff77"
provider_name
"Google AI Studio"
model_permaslug
"google/gemini-2.5-pro"
api_type
"completions"
id
"gen-1771296033-i0SioY9MOziLCiWSnC5O"
upstream_id
(null)
total_cost
0.03417625
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
0
adverbTagCount
0
adverbTags
(empty)
49.4585%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1385
totalAiIsmAdverbs
7
found
0
adverb
"perfectly"
count
1
1
adverb
"slightly"
count
1
2
adverb
"slowly"
count
2
3
adverb
"truly"
count
1
4
adverb
"very"
count
2
highlights
0
"perfectly"
1
"slightly"
2
"slowly"
3
"truly"
4
"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)
13.3574%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1385
totalAiIsms
12
found
0
word
"tangible"
count
1
1
word
"sanctuary"
count
1
2
word
"resonated"
count
1
3
word
"flicker"
count
1
4
word
"oppressive"
count
2
5
word
"profound"
count
1
6
word
"stark"
count
1
7
word
"weight"
count
2
8
word
"echoed"
count
1
9
word
"navigating"
count
1
highlights
0
"tangible"
1
"sanctuary"
2
"resonated"
3
"flicker"
4
"oppressive"
5
"profound"
6
"stark"
7
"weight"
8
"echoed"
9
"navigating"
66.6667%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
2
maxInWindow
2
found
0
label
"blood ran cold"
count
1
1
label
"air was thick with"
count
1
highlights
0
"blood went cold"
1
"The air was heavy with"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
130
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
5
narrationSentences
130
filterMatches
(empty)
hedgeMatches
0
"seemed to"
1
"began to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
131
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
29
mean
47.48
std
32.06
cv
0.675
sampleLengths
0
76
1
11
2
88
3
3
4
64
5
75
6
67
7
9
8
93
9
102
10
51
11
6
12
59
13
4
14
16
15
74
16
75
17
72
18
40
19
65
20
2
21
40
22
28
23
4
24
50
25
38
26
94
27
4
28
67
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
3
totalSentences
130
matches
0
"was supposed"
1
"were swiveled"
2
"being pulled"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
3
totalVerbs
217
matches
0
"was waiting"
1
"were drawing"
2
"was getting"
88.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1381
adjectiveStacks
2
stackExamples
0
"small, crescent-shaped scar"
1
"pale, cup-shaped heads"
adverbCount
47
adverbRatio
0.03403330919623461
lyAdverbCount
15
lyAdverbRatio
0.010861694424330196
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
131
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
131
mean
10.51
std
7.07
cv
0.673
sampleLengths
0
16
1
14
2
21
3
22
4
1
5
2
6
11
7
2
8
24
9
23
10
14
11
25
12
3
13
15
14
4
15
23
16
10
17
12
18
13
19
5
20
31
21
8
22
12
23
3
24
3
25
33
26
20
27
14
28
9
29
5
30
20
31
20
32
5
33
3
34
7
35
12
36
13
37
8
38
11
39
1
40
10
41
22
42
1
43
7
44
8
45
1
46
6
47
13
48
5
49
17
40.5128%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
14
diversityRatio
0.3076923076923077
totalSentences
130
uniqueOpeners
40
100.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
0
fancyCount
0
fancyTags
(empty)
85.7644%