NC Bench
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Run: 2026-02-17-01KHMMDXSPF0GE9SGJ9RY9Q8YW
Run Details
Model:
GPT-4o, May 13th (temp=0)
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
16.0s
Cost:
$0.022540
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
Aurora Carter stood at the edge of the Fae Grove, the ancient oak standing stones
looming
like silent
sentinels
in the moonlight.
The air was thick with
the scent of wildflowers, their vibrant colors muted in the sil
very
glow. She adjusted the strap of her messenger bag, the
weight
of the Heartstone Pendant pressing
lightly
against her chest. The deep crimson gem pulsed faintly, a subtle warmth that
seemed to
sync with her own heartbeat. She had come here at Eva's insistence, a cryptic message urging her to retrieve something important. Rory had learned to trust Eva's instincts, even when they led her to places like this — places that felt like they existed on the edge of reality. She took a deep breath, the cool night air filling her lungs, and stepped past the standing stones. The moment she crossed the threshold, the world
seemed to
shift. The sounds of the city faded, replaced by an eerie stillness. The wildflowers, which had seemed so vibrant from a distance, now appeared almost ghostly, their petals shimmering with an
otherworldly
light. Rory's bright blue eyes scanned the clearing, searching for any sign of what she
was supposed
to find. She moved
cautiously
, her
footsteps
barely making a sound on the soft earth. The grove was beautiful, but there was an underlying sense of wrongness that she couldn't shake. It was as if the
very
air was charged with a malevolent energy, a feeling that grew stronger with each step she took. A rustling sound to her left made her freeze. She turned her head
slowly
, her heart pounding in her chest. There was nothing there, just the swaying wildflowers and the ancient oaks. She shook her head, trying to dispel the unease that
was creeping
up her spine. It was just her imagination, she told herself. The grove
was playing
tricks on her. But as she continued deeper into the clearing, the feeling of
being watched
grew stronger. Shadows
seemed to
move at the edge of her vision, disappearing the moment she
tried to
focus on them. The pendant around her neck pulsed more insistently, its warmth a small comfort in the growing darkness. She reached the center of the grove, where a large stone altar stood. It
was covered
in moss and lichen, the surface worn smooth by centuries of weather. Rory approached it
cautiously
, her eyes scanning the area for any sign of danger. She placed her hand on the stone, feeling the cool, rough texture beneath her fingers. A sudden gust of wind whipped through the grove, sending a shiver down her spine. The wildflowers bent and swayed, their petals rustling like whispers. Rory's heart raced as she turned in a slow circle, her eyes darting from shadow to shadow. She was not alone. She could feel it in her bones. "Eva?" she called out, her voice barely more than a whisper. There was no response, only the eerie silence of the grove. She swallowed hard, her throat dry. She had to find whatever it was Eva had sent her for and get out of here. As she turned back to the altar, she noticed something she hadn't seen before — a small, intricately carved box nestled among the moss. She reached for it, her fingers trembling. The moment she touched it, a chill ran through her, and the pendant around her neck grew almost unbearably hot. She opened the box, revealing a small, silver key. It was delicate, almost fragile, and yet it
seemed to
hum with a strange energy. Rory's mind raced. What was this key for? Why had Eva sent her to retrieve it? A low, guttural growl
echoed
through the grove, and Rory's
blood ran cold
. She snapped the box shut and shoved it into her bag, her eyes scanning the darkness for the source of the sound. The shadows
seemed to
close in around her, the air growing thick and
oppressive
. She took a step back, her breath coming in short, panicked gasps. The growl came again, closer this time, and she could see a pair of glowing eyes watching her from the darkness. She turned and ran, her feet pounding against the earth as she fled the grove. The standing stones
loomed
ahead, their ancient forms a
beacon
of safety. She could hear something chasing her, its
footsteps
heavy and relentless. She pushed herself harder, her muscles burning with the effort. Just as she reached the stones, something cold and clammy wrapped around her ankle, pulling her to the ground. She screamed, kicking out with all her strength. The grip loosened, and she scrambled to her feet, her heart pounding in her ears. She stumbled through the standing stones, the world shifting around her once more. The sounds of the city returned, the distant hum of traffic and the occasional bark of a dog. She collapsed to the ground, her breath coming in ragged gasps. The pendant around her neck was cool again, its pulsing warmth gone. She reached into her bag and pulled out the box, her hands shaking. The key inside
seemed to
glow faintly, a reminder of the strange,
otherworldly
place she had just escaped. Rory knew she had to find Eva, to get answers about what had just happened. But for now, she was just grateful to be out of the grove, away from whatever had been lurking in the shadows. She got to her feet, her legs unsteady, and began the long walk back to her flat above Silas' bar. As she walked, she couldn't shake the feeling that she was still
being watched
, that something had followed her out of the grove. She glanced over her shoulder, but there was nothing there, just the empty street and the distant glow of the city lights. She quickened her pace, her mind racing with questions. What was the key for? Why had Eva sent her to the grove? And most importantly, what had been watching her from the shadows? The answers would have to wait. For now, she just needed to get home, to the safety of her flat. She clutched the pendant
tightly
, its cool surface a small comfort in the darkness.
created_at
"2026-02-17T01:46:40.761224+00:00"
2/17/2026, 1:46:40 AM
model
"openai/gpt-4o-2024-05-13"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
321
moderation_latency
(null)
generation_time
15580
tokens_prompt
812
tokens_completion
1491
native_tokens_prompt
743
native_tokens_completion
1255
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
0.02254
router
(null)
provider_responses
0
id
"chatcmpl-DA4SOOHR6c2nPkhrGx8hrfOPe6hN8"
status
200
is_byok
false
latency
289
endpoint_id
"3d6584e7-a2bb-48d6-903d-24e3d90e7e55"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-4o-2024-05-13"
api_type
"completions"
id
"gen-1771292784-RsxTXNAbTQjPuMLvMEcC"
upstream_id
"chatcmpl-DA4SOOHR6c2nPkhrGx8hrfOPe6hN8"
total_cost
0.02254
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
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)
41.9167%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1033
totalAiIsmAdverbs
6
found
0
adverb
"cautiously"
count
2
1
adverb
"lightly"
count
1
2
adverb
"slowly"
count
1
3
adverb
"tightly"
count
1
4
adverb
"very"
count
1
highlights
0
"cautiously"
1
"lightly"
2
"slowly"
3
"tightly"
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)
0.0000%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1033
totalAiIsms
11
found
0
word
"beacon"
count
1
1
word
"sentinels"
count
1
2
word
"oppressive"
count
1
3
word
"otherworldly"
count
2
4
word
"loomed"
count
1
5
word
"looming"
count
1
6
word
"weight"
count
1
7
word
"footsteps"
count
2
8
word
"echoed"
count
1
highlights
0
"beacon"
1
"sentinels"
2
"oppressive"
3
"otherworldly"
4
"loomed"
5
"looming"
6
"weight"
7
"footsteps"
8
"echoed"
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 ran cold"
1
"The air was thick with"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
74
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
7
narrationSentences
74
filterMatches
(empty)
hedgeMatches
0
"seemed to"
1
"tried to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
74
matches
0
"watched, that something"
17.8418%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
21
mean
49.29
std
10.47
cv
0.212
sampleLengths
0
75
1
62
2
61
3
52
4
62
5
51
6
57
7
53
8
45
9
51
10
40
11
49
12
48
13
33
14
42
15
42
16
43
17
57
18
45
19
33
20
34
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
3
totalSentences
74
matches
0
"was supposed"
1
"was covered"
2
"being watched"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
2
totalVerbs
178
matches
0
"was creeping"
1
"was playing"
96.8459%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1032
adjectiveStacks
0
stackExamples
(empty)
adverbCount
45
adverbRatio
0.0436046511627907
lyAdverbCount
17
lyAdverbRatio
0.016472868217054265
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
74
echoCount
0
echoWords
(empty)
91.8782%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
74
mean
13.99
std
5.31
cv
0.38
sampleLengths
0
22
1
17
2
19
3
17
4
16
5
28
6
18
7
11
8
11
9
21
10
18
11
13
12
16
13
23
14
9
15
11
16
12
17
15
18
8
19
7
20
15
21
19
22
17
23
13
24
15
25
14
26
15
27
15
28
10
29
17
30
4
31
7
32
11
33
11
34
6
35
17
36
24
37
7
38
20
39
9
40
15
41
3
42
5
43
8
44
13
45
22
46
14
47
12
48
21
49
15
41.8919%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
6
diversityRatio
0.21621621621621623
totalSentences
74
uniqueOpeners
16
100.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
1
fancyCount
0
fancyTags
(empty)
79.8260%