NC Bench
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Run: 2026-02-17-01KHMPGSQAXPC86CQMQP6P8YFW
Run Details
Model:
GPT-4o, Aug. 6th (temp=0)
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
32.6s
Cost:
$0.016788
Provider:
OpenAI
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 night air clung to Aurora Carter like a damp shroud as she stepped into the Fae Grove, the hidden clearing nestled within Richmond Park. The ancient oak standing stones
loomed
around her, their gnarled forms casting long shadows under the pale moonlight. Rory, as her friends called her, had come here with a purpose, though the specifics of that purpose
seemed to
slip through her fingers like sand. The Heartstone Pendant, a deep crimson gem on a silver chain, lay warm against her chest, pulsing faintly as if in response to some unseen force. She paused at the edge of the grove, her breath misting in the cool air. The wildflowers, impossibly vibrant even in the dim light, swayed
gently
as if whispering secrets to one another. Rory's bright blue eyes scanned the clearing, taking in the
surreal
beauty of the place. Yet, beneath the surface, a sense of wrongness prickled at her skin, a subtle dissonance that set her nerves on edge. The grove was silent, save for the occasional rustle of leaves and the distant hoot of an owl. But as Rory took a cautious step forward, the silence
seemed to
deepen, pressing in around her like a living thing. She shook off the feeling, attributing it to the peculiar nature of the grove where time itself danced to an unfamiliar tune. Her
footsteps
were soft on the mossy ground, the earth yielding
slightly
beneath her boots. She moved with the quiet grace of someone accustomed to slipping through the world unnoticed, a skill honed during her years of
navigating
the bustling streets of London. But here, in this
otherworldly
place, her presence felt intrusive, as if she were an unwelcome guest at a private gathering. The pendant's warmth intensified as she ventured deeper into the grove, its faint glow casting a soft light against her skin. Rory's fingers brushed against the small crescent-shaped scar on her left wrist, a habit she had developed whenever she
felt uneasy
. The scar was a reminder of a childhood accident, a tether to a simpler time before life had become so complicated. A sudden rustling in the underbrush drew her attention, and she froze, her heart skipping a beat. The sound was too deliberate, too purposeful to be the wind. She squinted into the shadows, but saw nothing beyond the shifting patterns of light and dark. Her mind raced, conjuring images of creatures that might inhabit this Fae-touched realm, beings that defied the logic of the world she knew. "Get a grip, Rory," she muttered to herself, her voice barely more than a whisper. The sound
seemed to
hang in the air, absorbed by the grove's strange acoustics. She continued forward, each step a test of her resolve. The path wound through the trees, leading her deeper into the heart of the grove. The standing stones formed a loose circle around a central clearing, their surfaces
etched
with runes that glimmered faintly in the moonlight. Rory had seen similar markings in the old books Eva kept in her flat, symbols of protection and power. As she approached the center of the grove, the air grew colder, a chill that seeped into her bones. The pendant's glow brightened, casting eerie shadows that danced across the ground. Rory's breath came in shallow gasps, her senses heightened by the growing certainty that she was not alone. A soft, melodic humming drifted through the air, a sound that
seemed to
come from everywhere and nowhere at once. It was a haunting tune, both beautiful and unsettling, and it tugged at something deep within her. Rory turned
slowly
, searching for the source, but the grove remained empty, the shadows playing tricks on her eyes. "Who's there?" she called, her voice steady despite the fear coiling in her stomach. The humming ceased abruptly, leaving a heavy silence in its wake. Rory's
heart pounded in her chest
, each beat
echo
ing in her ears. She took a step back, her instincts screaming at her to leave this place, to return to the safety of the world she understood. But the pendant's warmth anchored her, a reminder of the task she had yet to complete. A
flicker
of movement caught her eye, a shadow slipping between the trees at the edge of the clearing. Rory's breath hitched, her pulse quickening as she strained to see through the gloom. The figure was indistinct, more suggestion than substance, but its presence was undeniable. "Show yourself," she demanded, her voice firm despite the tremor in her hands. The figure paused, as if considering her words, before stepping into the moonlight. It was a woman, her features obscured by a veil of shadows. Her eyes, dark and fathomless, met Rory's with an intensity that
sent a shiver down
her spine. The woman moved with an
ethereal
grace, her form shifting and blurring at the edges as if she were not entirely of this world. "You seek answers," the woman said, her voice a soft murmur that
seemed to
resonate within the grove. "But the path you walk is fraught with danger." Rory swallowed hard, her mind racing to make sense of the encounter. "Who are you?" she asked, her voice barely more than a whisper. The woman tilted her head, a ghost of a smile playing on her lips. "I am a guardian of this place, a keeper of secrets. You carry a burden, child of two worlds, and the choices you make will shape the fate of many." The words
hung in the air
, heavy with meaning. Rory's thoughts spun, the
weight
of the woman's gaze pressing down on her. She felt exposed, as if the woman could see into the depths of her soul, uncovering truths she had yet to acknowledge. "What do you want from me?" Rory asked, her voice
tinged
with desperation. The woman stepped closer, her form
flicker
ing like a candle flame. "To guide you, if you will allow it. But know this: the path is yours to choose, and the consequences are yours to bear." Rory nodded, her resolve hardening despite the fear that gnawed at her insides. She had come here seeking answers, and though the path was uncertain, she would not turn back now. The woman reached out, her hand brushing against the pendant. The gem flared with light, a brilliant crimson that illuminated the grove. Rory gasped, the warmth spreading through her chest, filling her with a sense of purpose. "Trust in yourself, Aurora Carter," the woman said, her voice fading like a distant
echo
. "And remember, you are never
truly
alone." With that, the woman dissolved into the shadows, leaving Rory standing alone in the clearing. The grove was silent once more, the only sound the soft rustle of leaves in the breeze. Rory took a deep breath, the pendant's glow a comforting presence against her skin. She turned, her steps sure as she retraced her path through the grove. The wrongness lingered, a reminder of the mysteries that lay beyond the veil of the ordinary world. But Rory was no stranger to uncertainty, and as she emerged from the grove, she carried with her the knowledge that she was part of something greater, a story yet to be told.
created_at
"2026-02-17T02:23:28.691615+00:00"
2/17/2026, 2:23:28 AM
model
"openai/gpt-4o-2024-08-06"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
458
moderation_latency
(null)
generation_time
32536
tokens_prompt
812
tokens_completion
1774
native_tokens_prompt
743
native_tokens_completion
1493
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
0.0167875
router
(null)
provider_responses
0
id
"chatcmpl-DA51jNJqMZyA716V0enZkXjrnRIj7"
status
200
is_byok
false
latency
408
endpoint_id
"9d15935a-34e6-4a5e-a5bc-c7dda213e876"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-4o-2024-08-06"
api_type
"completions"
id
"gen-1771294975-5dI1CvHTCln9ELtTleIK"
upstream_id
"chatcmpl-DA51jNJqMZyA716V0enZkXjrnRIj7"
total_cost
0.0167875
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
38.0952%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
7
adverbTagCount
2
adverbTags
0
"she muttered to herself, her voice barely more than a whisper [barely more]"
1
"the woman said, her voice fading like a distant echo [like]"
66.9148%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1209
totalAiIsmAdverbs
4
found
0
adverb
"gently"
count
1
1
adverb
"slightly"
count
1
2
adverb
"slowly"
count
1
3
adverb
"truly"
count
1
highlights
0
"gently"
1
"slightly"
2
"slowly"
3
"truly"
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)
0.7444%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1209
totalAiIsms
12
found
0
word
"ethereal"
count
1
1
word
"tinged"
count
1
2
word
"flicker"
count
1
3
word
"otherworldly"
count
1
4
word
"surreal"
count
1
5
word
"loomed"
count
1
6
word
"weight"
count
1
7
word
"footsteps"
count
1
8
word
"echo"
count
1
9
word
"echoing"
count
1
10
word
"etched"
count
1
11
word
"navigating"
count
1
highlights
0
"ethereal"
1
"tinged"
2
"flicker"
3
"otherworldly"
4
"surreal"
5
"loomed"
6
"weight"
7
"footsteps"
8
"echo"
9
"echoing"
10
"etched"
11
"navigating"
33.3333%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
3
maxInWindow
3
found
0
label
"heart pounded in chest"
count
1
1
label
"hung in the air"
count
1
2
label
"sent a shiver through"
count
1
highlights
0
"heart pounded in her chest"
1
"hung in the air"
2
"sent a shiver down"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
1
narrationSentences
67
matches
0
"felt uneasy"
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
5
narrationSentences
67
filterMatches
(empty)
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
71
matches
(empty)
78.0270%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
26
mean
46.42
std
19.64
cv
0.423
sampleLengths
0
95
1
69
2
61
3
64
4
63
5
67
6
29
7
66
8
49
9
56
10
25
11
52
12
46
13
26
14
53
15
27
16
24
17
44
18
44
19
13
20
35
21
31
22
37
23
22
24
32
25
77
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
0
totalSentences
67
matches
(empty)
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
0
totalVerbs
171
matches
(empty)
88.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1114
adjectiveStacks
2
stackExamples
0
"lay warm against her"
1
"small crescent-shaped scar"
adverbCount
29
adverbRatio
0.026032315978456014
lyAdverbCount
12
lyAdverbRatio
0.010771992818671455
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
71
echoCount
0
echoWords
(empty)
62.7398%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
71
mean
17
std
5.22
cv
0.307
sampleLengths
0
25
1
18
2
26
3
26
4
15
5
18
6
15
7
21
8
18
9
21
10
22
11
15
12
28
13
21
14
21
15
21
16
21
17
17
18
11
19
16
20
23
21
15
22
14
23
10
24
15
25
22
26
19
27
19
28
12
29
18
30
20
31
17
32
19
33
14
34
11
35
12
36
24
37
16
38
19
39
14
40
13
41
13
42
13
43
12
44
17
45
24
46
18
47
9
48
12
49
12
45.7746%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
3
diversityRatio
0.2676056338028169
totalSentences
71
uniqueOpeners
19
32.1429%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
7
fancyCount
4
fancyTags
0
"she muttered to herself, her voice barely more than a whisper (mutter)"
1
"she demanded, her voice firm despite the tremor in her hands (demand, firm)"
2
"the woman said, her voice a soft murmur that seemed to resonate within the grove (say, voice seem resonate)"
3
"the woman said, her voice fading like a distant echo (say, fade like)"
73.2807%