NC Bench
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Run: 2026-02-17-01KHMMEC9J4SD25PM9MD0GVWQM
Run Details
Model:
Cohere Command R+ (Aug. 2024)
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
1m 3s
Cost:
$0.019515
Provider:
Cohere
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 evening breeze whispered through the trees, carrying an eerie melody that
seemed to
prickle along Aurora's skin. She had always been a creature of the night, the shadows comforting in their familiar embrace. But tonight, even the darkness felt foreign, as if Richmond Park had transformed into an alien landscape in the hours between dusk and midnight. Her steps, usually purposeful, became more hesitant as she ventured further into the heart of the Fae Grove. Isolde's grove, with its ancient oak standing stones framing the entrance, should have been a place of wonder for Aurora, a gateway to the mythical realm. Instead, it felt like a trap, its
very
existence taunting her. The way she had stumbled upon it almost felt like a cruel joke, as if this hidden clearing
was luring
her in. Its existence defied reason; the park's maps made no mention of it. And yet here it was, a place where time
seemed to
bend and stretch. What had felt like mere minutes had transpired according to her
watch
—hours rapidly slipping by in the outside world. Drawn by an inexplicable impulse, she had entered, the air crackling with unseen energy as she passed through an invisible barrier. The hair on her arms stood on end, and
a shiver ran down her spine
that had nothing to do with the cool night air. The grove, illuminated by moonbeams filtering through the canopy, revealed itself to be a place of
ethereal
beauty. Wildflowers painted the earth in vibrant hues, defying the season's limitations. Yet, their fragrance, so sweet it was almost cloying, couldn't mask the underlying scent of decay. She caught the faintest hints of fetid water and rotting wood beneath the floral aroma, a reminder that even in this magical place, death and life were inextricably entwined. As she moved deeper, Aurora became aware of an unsettling silence. Not the comfortable hush of a peaceful night but a stifling absence of sound, as if the
very
air had
been muted
. Not a rustle of leaves, no nightingale's song. The only sound was her
footsteps
, which
seemed to
echo
too loudly, announcing her presence to whatever lurked in the darkness. Something scuttled in the undergrowth, breaking the silence. She froze, the hair on the back of her neck rising. It was a sound she had grown used to in her deliveries across London: a rat perhaps, or a squirrel startled by her intrusion. But here, in this
otherworldly
grove, the noise took on an ominous tone, as if signaling an unseen presence. She sensed eyes on her,
watch
ful and predatory, though she saw nothing when she scanned the shadows. Her pulse quickened as she fingered the Heartstone Pendant beneath her shirt. The crimson gemstone felt warm against her skin, its inner glow invisible yet comforting. Dymas' gift had become her talisman, a reminder that she was not alone in
navigating
this strange new world. But tonight, even its reassuring pulse couldn't shake the feeling that she had ventured into a territory where she didn't belong. The wind picked up, swirling around her, and a soft, haunting melody whispered on the breeze, almost recognizable but just beyond her memory's reach. It was a song without words, both mournful and inviting, luring her deeper into the grove. She followed, her feet seemingly guided by an unseen force, her rational thoughts overshadowed by an urgent need to reach the song's source. The air grew thicker, heavier, as if she
were walking
through syrup. A chill crept up her spine, and her breath misted before her face, though the night wasn't cold. Isolde's grove, with its
ethereal
wildflowers and mystical atmosphere, now felt like a
sinister
mirage, a trick of the Fae. The ancient oak trees here stood gnarled and menacing, their branches like skeletal fingers reaching for the sky. It was as if the trees themselves were sentient, witnesses to secrets no mortal should uncover. As Aurora's eyes adjusted to the peculiar light, she noticed symbols carved into the bark, ancient runes she didn't recognize. The markings glowed faintly, as if imbued with an
otherworldly
power. The song shifted, becoming a discordant melody that scratched at her mind. It was then that she saw it: a figure standing
amidst
the trees. It was human-like in form but distorted, its limbs elongated and its skin shimmering with an unearthly light. Its eyes, pools of darkness, fixed upon her, and a slow, menacing smile stretched across its face. Aurora stood paralyzed, the pendant's warmth forgotten as her breath caught in her throat. Her mind screamed at her to turn and run, but her feet remained rooted to the ground. The air thickened with malevolence, and she realized, with a sinking feeling, that she had crossed into a realm where humans were not meant to tread. The figure took a step forward, its distorted shape shifting with each movement, as if it were a reflection in a funhouse mirror. Its smile widened, revealing pointed teeth. "Welcome, Malphora," it hissed, its voice like the scrape of a knife against stone. Aurora's heart hammered against her ribs. The name—an alias she hadn't used since she answered to no one but the Fae—
sent a chill through
her. This was no ordinary creature; it knew who she was and what she had been. It was a hunter, and she was its prey. "What do you want?" she managed, her voice steadier than she felt. "To play, little human. To
dance
in the starlight and feast on your fear." Its eyes gleamed with
anticipation
, and it took another step forward, the air crackling with its proximity. She backed away, her heart pounding. She had to escape, to find her way back to the stones, the boundary between this realm and her own. But her
footsteps
seemed to
echo
in her mind, drawing the creature's attention. "Running won't save you, not in this place." Its laugh was like the rustle of dead leaves, and Aurora felt its words in her bones. With a surge of adrenaline, she turned and ran, her feet pounding the earth. The song intensified, now a
cacophony
of menacing notes that drove her forward. Twisting and turning, she weaved through the ancient oaks, their branches reaching out like skeletal hands to ensnare her. The malevolent figure was close behind, its laughter
echo
ing in her wake. Her foot caught on a root, and she stumbled, the pendant's chain snapping as she hit the ground. The gemstone rolled away, its inner light fading as it disappeared into the underbrush. The creature
loomed
above her, its eyes
glint
ing with malicious glee. "Now, you
truly
are alone, Aurora," it whispered, its breath hot on her skin. Desperation fueled her next move. She scrambled backwards, searching frantically for the gem. Her fingers closed around its warm surface, and she felt a surge of energy. With a final plea to whatever powers might be listening, she hurled the stone at the creature. The gem struck its chest, and the world
seemed to
pause. The pendant pulsed, its crimson glow intensifying until it exploded in a flash of blinding light. The creature shrieked, its form contorting in agony as the light consumed it. In the aftermath, Aurora lay trembling, her heart racing. The grove was silent once more, the haunting melody gone. She pushed herself upright, her hands shaking as she wiped the dirt from her palms. "I guess the rumors were true," a gentle voice said from behind her. She spun, her heart leaping into her throat at the unexpected sound. A young man stood there, his dark hair mussed and a mischievous
glint
in his eye. "Not many mortals make it out of Isolde's grove. Especially not after an encounter with one of the Unseelie." Aurora's breath escaped in a rush. "Who are you?" she asked, her voice raspy with strain. He offered her a hand, his smile infectious despite the lingering tension in the air. "A friend, hopefully. I'm Silas, and you're certainly not the first to stumble upon this place and live to tell the tale."
created_at
"2026-02-17T01:47:43.148016+00:00"
2/17/2026, 1:47:43 AM
model
"cohere/command-r-plus-08-2024"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
385
moderation_latency
143
generation_time
63067
tokens_prompt
812
tokens_completion
2014
native_tokens_prompt
758
native_tokens_completion
1762
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
0.019515
router
(null)
provider_responses
0
id
"fda14d9c-195b-4b6c-b85d-87d169730469"
status
200
is_byok
false
latency
385
endpoint_id
"cd63714a-d459-4806-bdf2-0dfea4f6614c"
provider_name
"Cohere"
model_permaslug
"cohere/command-r-plus-08-2024"
api_type
"completions"
id
"gen-1771292799-ZDUurllC93B79DY8BIC3"
upstream_id
"fda14d9c-195b-4b6c-b85d-87d169730469"
total_cost
0.019515
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Cohere"
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)
77.7778%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1350
totalAiIsmAdverbs
3
found
0
adverb
"truly"
count
1
1
adverb
"very"
count
2
highlights
0
"truly"
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)
0.0000%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1350
totalAiIsms
18
found
0
word
"ethereal"
count
2
1
word
"cacophony"
count
1
2
word
"glint"
count
1
3
word
"glinting"
count
1
4
word
"otherworldly"
count
2
5
word
"sinister"
count
1
6
word
"loomed"
count
1
7
word
"anticipation"
count
1
8
word
"dance"
count
1
9
word
"footsteps"
count
2
10
word
"amidst"
count
1
11
word
"echo"
count
2
12
word
"echoing"
count
1
13
word
"navigating"
count
1
highlights
0
"ethereal"
1
"cacophony"
2
"glint"
3
"glinting"
4
"otherworldly"
5
"sinister"
6
"loomed"
7
"anticipation"
8
"dance"
9
"footsteps"
10
"amidst"
11
"echo"
12
"echoing"
13
"navigating"
66.6667%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
2
maxInWindow
2
found
0
label
"shiver down spine"
count
1
1
label
"sent a shiver through"
count
1
highlights
0
"a shiver ran down her spine"
1
"sent a chill through"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
83
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
5
narrationSentences
83
filterMatches
0
"watch"
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
85
matches
(empty)
84.9803%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
28
mean
48.11
std
21.52
cv
0.447
sampleLengths
0
76
1
104
2
46
3
74
4
62
5
79
6
66
7
63
8
50
9
65
10
60
11
57
12
43
13
49
14
12
15
31
16
39
17
25
18
58
19
43
20
14
21
44
22
40
23
34
24
13
25
47
26
16
27
37
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
83
matches
0
"been muted"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
2
totalVerbs
212
matches
0
"was luring"
1
"were walking"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1266
adjectiveStacks
0
stackExamples
(empty)
adverbCount
37
adverbRatio
0.029225908372827805
lyAdverbCount
11
lyAdverbRatio
0.008688783570300158
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
85
echoCount
0
echoWords
(empty)
79.8963%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
85
mean
15.85
std
5.54
cv
0.35
sampleLengths
0
18
1
16
2
24
3
18
4
26
5
11
6
22
7
12
8
14
9
19
10
21
11
25
12
18
13
11
14
16
15
29
16
11
17
22
18
8
19
21
20
8
21
11
22
24
23
19
24
17
25
12
26
14
27
19
28
21
29
24
30
16
31
23
32
12
33
18
34
20
35
18
36
16
37
20
38
11
39
12
40
13
41
18
42
17
43
14
44
17
45
26
46
23
47
6
48
14
49
6
50.1961%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
9
diversityRatio
0.36470588235294116
totalSentences
85
uniqueOpeners
31
50.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
4
fancyCount
2
fancyTags
0
"it hissed, its voice like the scrape of a knife against stone (hiss, like)"
1
"it whispered, its breath hot on her skin (whisper)"
82.9128%