NC Bench
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Run: 2026-02-17-01KHMQPM91N963ZT4DYBS6482J
Run Details
Model:
Gemini 3 Flash (Preview)
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
17.3s
Cost:
$0.006228
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
A thin membrane of mist clung to the gnarled roots of the oaks as Rory stepped through the threshold of the standing stones. Behind her, the familiar hum of London—the distant growl of the A3, the orange city glow, the comfort of exhaust-fumed air—snapped shut like a heavy book. The silence that rushed in to fill the void was heavy and cloying, smelling of crushed wildfowers and damp, ancient earth. She checked her
watch
, the glass face
glinting
in the moonlight. Ten forty-two. She had promised Silas she’d only be an hour, just long enough to find the peculiar herbs the old man insisted grew only in this specific clearing of Richmond Park. Now, standing within the perimeter of the Grove, the
very
idea of a clock felt like a joke. The air felt thick, more liquid than gas, and the wildflowers beneath her boots—primroses and violets that had no business blooming in the biting chill of late autumn—glowed with a soft, bioluminescent pallor. Rory adjusted the strap of her bag, her fingers brushing against the crescent-shaped scar on her left wrist. It was an old habit, a tactile grounding mechanism she’d developed back in Cardiff when her father’s legalistic interrogations or Evan’s quiet rages became too much. Tonight, the skin felt tight, a phantom ache pulsing beneath the surface. She moved deeper into the clearing. The oaks here were wrong. Their bark didn’t twist with growth; it looked warped, as if the wood had
been frozen
mid-scream. Above, the canopy was so dense it blotted out the stars, yet a sourceless, silver light permeated the space, casting shadows that didn’t quite align with the objects creating them. A sudden heat flared against her collarbone. Rory reached up, fumbling under her scarf to touch the Heartstone Pendant. The deep crimson gem
was vibrating
, a low-frequency hum that she felt more than heard. It pulsed with a steady, rhythmic warmth—like a heartbeat. It usually stayed dormant, a heavy thumb-sized
weight
on its silver chain, but now it was alive. "Great," she whispered, her voice sounding flat and muffled, as if the Grove
were swallowing
the sound. "Portals." She scanned the perimeter. To her right, a patch of foxglove swayed, though there was no wind. She froze. The movement wasn't random. It was a rhythmic parting of the tall stalks, as if something heavy
were testing
the air. Rory forced herself to walk, her boots sinking into the unnaturally soft turf. She needed the mountain ash berries Silas had described. She spotted a cluster near the far end of the grove, where the trees leaned inward like conspirators sharing a secret. As she approached, a sound caught her ear—a sharp, metallic *clink*. She stopped. The sound had come from the direction of the standing stones, the way she’d entered. She turned
slowly
. The mist had thickened, turning the stones into grey, indistinct monoliths. The path she’d taken
was gone
. Not hidden, simply absent. In its place stood more of the silver-veined oaks. The Heartstone grew hotter, the crimson glow now visible through the knit of her sweater. "Is someone there?" she called out. The cool-headed logic that made her a favorite at the Golden Empress fought against the rising tide of adrenaline. "I’m just passing through. I have business with the bar downstairs." No answer came, but the silence had changed. It was no longer empty; it was expectant. She saw it then—a
flicker
of something white at the edge of her vision. It moved behind a tree with a fluid, jointless grace. Rory didn't run. Running invited a chase. Instead, she reached into her pocket and gripped her keys, the sharp edges of the brass digging into her palm. She kept her eyes fixed on the tree. "I see you," she lied. A soft, wet sound
echoed
from behind her—the sound of a boot pulling out of thick mud. She spun around, but the clearing was empty. Or it seemed empty. As her eyes adjusted, she realized the shadows
were lengthening
, stretching toward her like reaching fingers despite the moon staying stationary in the sky. The Heartstone was now burning, a
searing
heat that forced her to pull it out and let it hang over her clothes. It
throbbed
a frantic, bloody red. The light it cast illuminated the ground at her feet. She
wasn't standing
on grass anymore. The wildflowers had retracted, folding into the earth, revealing a floor of white, bleached bone. Not human—at least, she hoped not—but thousands of tiny, delicate ribs and skulls of birds and small forest creatures, knitted together like a
macabre
carpet. A whisper drifted past her ear, so close she felt the cold stir of breath on her neck. It wasn't a word, but a name. *Malphora.* Rory’s breath hitched. That wasn't her name. It was a name she’d heard in dreams she couldn't remember, a name that tasted like iron and ozone. She backed away, her heart hammering a frantic rhythm that matched the pulsing of the pendant. *Clink.* The sound was closer. It was the sound of silver on stone. She turned toward the sound and saw it. Standing near the center of the grove was a figure. It was tall, impossibly thin, draped in rags the color of bruised plums. It had no face, only a smooth, pale expanse of skin where features should be, and arms that hung too low, the fingers brushing the bone-strewn floor. It held a silver chain in its hand, dragging it idly across the stones. Rory felt the familiar coldness of a panic attack beginning to bloom in her chest, but she pushed it down. *Think, Rory. Out of the box.* The creature didn't move toward her. It simply stood there, its head tilting with a sickening, audible snap of vertebrae. It
was waiting
for something. She looked at the Heartstone. It wasn't just glowing; it
was pointing
. A thin shard of crimson light shot out from the gem, lancing through the mist toward a gap between two of the warped oaks. She didn't wait for a second invitation. Rory lunged for the gap. As she ran, the Grove
seemed to
expand. The distance between the trees grew, the ground beneath her turning from bone to a viscous, grey sludge that
tried to
suck the shoes from her feet. Behind her, she heard the *clink-slid-clink* of the chain. The creature was moving now, its gait a terrifying, jerky stutter, appearing several yards closer e
very
time she blinked. "Not today," she hissed through gritted teeth. She reached the gap where the light pointed. There were no standing stones here, just a shimmering distortion in the air, like heat rising off a Cardiff road in July. She could see the park on the other side—the dark silhouettes of regular trees, the distant glow of a streetlamp. It was so close. A hand, cold as a slab of ice and twice as heavy, clamped onto her shoulder. Rory screamed, a raw, guttural sound, and swung her bag with e
very
thing she had. The heavy canisters of Yu-Fei’s deli
very
containers inside the bag slammed into the creature with a dull thud. It didn't cry out; it didn't even stumble. But the impact was enough to break its grip for a fraction of a second. She dove for the shimmering air. The transition was like
being surged
through a pressurized pipe. Her ears popped, her lungs burned, and the smell of ozone became deafening. Rory hit the grass hard, tumbling forward until her face pressed into the cold, damp turf of the actual Richmond Park. She scrambled to her feet, spinning around, her chest heaving. The gap
was gone
. She
was standing
near a
perfectly
normal, overgrown oak tree. There were no standing stones. No bone-strewn floors. No faceless things in purple rags. She stood there for a long time, the silence of the London night finally feeling like a blessing. Her hand went to her throat. The Heartstone Pendant was cold again, a dull, dark red pebble on a silver string. She checked her
watch
. Ten forty-four. Only two minutes had passed since she entered. Rory shivered, pulling her jacket tight around her. She looked down at her shoulder. On the dark fabric of her coat, right where the thing had grabbed her, was a handprint of fine, white powder—crushed bone. She didn't look back again. She turned and began the long walk toward the park gates, her mind already racing to find a way to tell Silas why she’d come back without the herbs. But as she walked under the safety of the streetlamps, she couldn't shake the feeling that the name she’d heard—*Malphora*—wasn't a mistake. It was an invitation. And the thing in the grove was still holding the other end of the chain.
created_at
"2026-02-17T02:43:53.38379+00:00"
2/17/2026, 2:43:53 AM
model
"google/gemini-3-flash-preview-20251217"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
804
moderation_latency
(null)
generation_time
17194
tokens_prompt
812
tokens_completion
2197
native_tokens_prompt
773
native_tokens_completion
1947
native_tokens_completion_images
0
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
0.0062275
router
(null)
provider_responses
0
status
200
is_byok
false
latency
804
endpoint_id
"6e82f652-2693-4b60-bbe0-7362d6e345f0"
provider_name
"Google AI Studio"
model_permaslug
"google/gemini-3-flash-preview-20251217"
api_type
"completions"
id
"gen-1771296215-SUpHgy5UYE2RLuk87Eyj"
upstream_id
(null)
total_cost
0.0062275
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
4
adverbTagCount
0
adverbTags
(empty)
79.8658%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1490
totalAiIsmAdverbs
3
found
0
adverb
"perfectly"
count
1
1
adverb
"slowly"
count
1
2
adverb
"very"
count
1
highlights
0
"perfectly"
1
"slowly"
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)
53.0201%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1490
totalAiIsms
7
found
0
word
"throbbed"
count
1
1
word
"searing"
count
1
2
word
"flicker"
count
1
3
word
"glinting"
count
1
4
word
"macabre"
count
1
5
word
"weight"
count
1
6
word
"echoed"
count
1
highlights
0
"throbbed"
1
"searing"
2
"flicker"
3
"glinting"
4
"macabre"
5
"weight"
6
"echoed"
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
123
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
2
hedgeCount
2
narrationSentences
123
filterMatches
0
"watch"
hedgeMatches
0
"seemed to"
1
"tried to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
125
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
41
mean
35.78
std
22.86
cv
0.639
sampleLengths
0
70
1
94
2
56
3
58
4
60
5
18
6
40
7
54
8
50
9
15
10
36
11
16
12
59
13
5
14
53
15
38
16
6
17
40
18
26
19
42
20
1
21
12
22
72
23
26
24
25
25
36
26
12
27
63
28
7
29
54
30
16
31
55
32
6
33
23
34
31
35
28
36
39
37
6
38
8
39
36
40
75
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
4
totalSentences
123
matches
0
"been frozen"
1
"was gone"
2
"being surged"
3
"was gone"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
8
totalVerbs
237
matches
0
"was vibrating"
1
"were swallowing"
2
"were testing"
3
"were lengthening"
4
"wasn't standing"
5
"was waiting"
6
"was pointing"
7
"was standing"
94.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1469
adjectiveStacks
1
stackExamples
0
"heavy thumb-sized weight"
adverbCount
48
adverbRatio
0.03267528931245745
lyAdverbCount
14
lyAdverbRatio
0.009530292716133424
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
125
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
125
mean
11.74
std
7.6
cv
0.647
sampleLengths
0
23
1
26
2
21
3
11
4
2
5
30
6
18
7
33
8
18
9
26
10
12
11
6
12
5
13
17
14
30
15
7
16
12
17
15
18
9
19
17
20
17
21
1
22
4
23
13
24
2
25
4
26
17
27
13
28
9
29
21
30
11
31
2
32
15
33
3
34
11
35
6
36
4
37
9
38
15
39
6
40
19
41
11
42
8
43
8
44
14
45
10
46
3
47
4
48
20
49
8
43.6000%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
8
diversityRatio
0.28
totalSentences
125
uniqueOpeners
35
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
4
fancyCount
3
fancyTags
0
"she whispered, her voice sounding flat and muffled, as if the Grove were swallowing the sound (whisper, sound muffle, swallow)"
1
"she lied (lie)"
2
"she hissed through gritted teeth (hiss grit)"
86.4992%