NC Bench
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Run: 2026-02-17-01KHMMDRTKQ8SN421KA8RX9PZC
Run Details
Model:
Cohere Command R+ (Aug. 2024)
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
1m 24s
Cost:
$0.020975
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 moon was a slender crescent, offering little comfort as Aurora Carter picked her way through the shadowy expanse of Richmond Park. She had chosen this route, an unfamiliar one, to explore the rumors of a place where the barrier between the human world and the Fae realm thinned. A risky endeavor, especially on a night like this, with the park enveloped in an eerie tranquility. Her breath clouded in the chilly air, and the crunch of dead leaves under her boots
echoed
loudly, making her wince with each step. Rory had always been one to dive headfirst into dangerous situations, but tonight was different. An uneasiness settled in her stomach as if a sixth sense
was screaming
at her to turn back. Yet she kept going. The Fae Grove, her destination, was a place out of whispered tales, hidden away from all but the most determined seekers. Legend had it that ancient oak standing stones marked the boundary, and their energy disturbed the flow of time itself. Rory's heart quickened as she envisioned the secrets this grove might hold. She often thought the Fae were nothing but fairy tales, but if there was a shred of truth to the stories, she needed to know. Especially now, when every day in London felt like a new threat. Her fingertips brushed the Heartstone Pendant beneath her sweater—a warm pulse in the palm of her hand. The stone's faint glow guided her steps, almost as if it knew the path. Yet as she wandered through the skeletal trees, the quiet deepened, and the pendant's warmth faded. She pulled it out, studying the deep crimson gem. It should be shining brighter, not dimming like a dying ember. Rory scanned the darkness, searching for some sign she had reached her intended site. "Am I even going the right way?" she murmured to herself, the sound of her voice both a comfort and a magnet for every small, imaginary creature of the night. A rustling to her left made her spin, heart in her throat, but it was only a hedgehog snuffling for food. The noise made her smile, a welcome relief from the
oppressive
silence. She took a deep breath, the air sharp with the earthy scent of late autumn. The crunch underfoot became a soothing rhythm as she continued walking, the pendant back beneath her sweater, its warmth providing reassurance. Without warning, the sound of her
footsteps
changed. The leaves
were gone
, and her boots landed on soft grass. She glanced down, her eyes tracing the slim beam of light from the pendant to the verdant ground cover. Wildflowers clustered around her boots, defiantly colorful in the moonlight. "But this isn't possible..." she whispered, looking around. The trees had closed in, their branches reaching across the small clearing she now stood in, shielding her from the night sky. Ancient oak standing stones, their bark gnarled and thick, encircled the space, their roots like tethers to some unseen realm. The Heartstone glowed brighter now, seeming to pulse with each beat of her heart. Rory touched one of the mighty stones, its surface smooth despite its rough appearance. A deep hum, like the purr of a large cat, vibrated through her hand as if the rock itself were alive. She jerked her fingers away. "Okay, too far. Time to go." But as she turned, a high, keening cry
echoed
through the grove, freezing her in her tracks. It was an unearthly sound, like wind through a cracked bell, sending shivers down her spine. Her mind flashed to a hundred horror stories she'd devoured as a girl, each one cautioning against staying in such a place. Should she run? But where? The entrance she'd come through was nowhere to be seen. The park's layout should have been discernible from within the grove, but all she saw was this small, sheltered space. As she took an involuntary step back, her heel caught on something, and she stumbled, arms flailing for balance. Her shoulders hit the hard ground with a painful thud, and the pendant slipped from its hiding place, bouncing on its silver chain across the grass. It left a trail of faint, pulsing light like breadcrumbs leading back to her. Rory scrambled for the stone, fingers closing around it just as the keening cry came again, this time closer, accompanied by the rustle of leaves and the snap of branches. She turned, her heart thundering, but the trees provided a natural camouflage, making it impossible to pinpoint the source of the sound. A breeze gusted through the clearing, carrying the scent of earth and leaves, but also something else. Something that smelled of ancient magic and hidden forests. A chill raced down her spine, and she clutched the pendant in her fist, its warmth a small
beacon
against the rising tide of fear. The rustling grew louder, closer, and she realized she
was holding
her breath. With a sharp exhale, she whispered, "Hello? Is someone there?" The wind stirred the leaves, and the cry came again, now so close she could almost feel breath on her neck. She whipped around, her eyes searching frantically. A figure stepped out from the shadows, tall and slender, its skin pale as moonlight. Not human, Rory knew instantly. Its eyes were as dark as the spaces between stars, empty of mercy. But most startling was its mouth, a black hole in its face from which the keening cry issued forth. She opened her mouth to scream, but the sound died in her throat. The figure raised a long, delicate arm, and with a final piercing cry, it disappeared back into the trees, the branches swinging closed like a silent accusing finger. Rory lay frozen, eyes locked on the spot where the figure had stood, her mind
churning
. Had it been a Fae? A Hel steed? Her head spun with legends and lore, none of which prepared her for an encounter like this. She'd felt the air stir moments before it appeared, but whether that was a warning or a simple breeze, she couldn't say. The trees
loomed
overhead, silent
sentinels
guarding their ancient secrets. She rose unsteadily to her feet, the Heartstone held tight in her grip, its warmth a
stark
contrast to the cold sweat that had broken out across her skin. "I need to get out of here," she whispered, taking a step back toward the direction from which she'd come. But another rustle, this one from a different part of the grove, halted her retreat. This was their land, she reminded herself. She was the uninvited guest, the trespasser. Yet her instincts insisted something here wasn't
right, that whatever
danced at the edge of her vision was not merely watching her, it
was hunting
her. With the pendant clutched in her hand, she moved deeper into the grove, away from the direction she'd thought was the entrance. It was a gamble, but her intuition urged her forward, promising safety if she could just find the right path. She ducked under low-hanging branches, her hair snagging on thorns, the scent of pine needles and wild rose filling her lungs. The farther she went, the stronger the Heartstone glowed, its pulse keeping time with her quickening steps. Finally, she burst through a wall of foliage into a small, sun-drenched meadow, the trees behind her now a dark, brooding wall. She turned, panting, in time to see the branches weave together, sealing the path behind her. "Well played," she muttered, fingers still tight around the pendant. She should have known better than to think she could just waltz into the Fae realm and escape unscathed. Now she had to find another way out. As she turned to survey her new surroundings, a shadow passed over the sun, and she looked up, squinting against the brightness. Massive wings beat the air, and a gigantic bird-like creature soared high above her, its feathers
gleaming
like polished obsidian. Rory's breath caught. She'd seen illustrations of these beasts in ancient texts—the Hel steeds, servants of the Fae. A shiver raced down her spine, not from fear of the steed itself, but from the
understanding that she'd
stumbled into a complex, hidden world, one that was revealing itself to her in ways she couldn't
begin to
fathom. The more she learned, the less she knew. It was almost enough to make her laugh, which she did,
softly
, the sound
echoing
oddly in the still air. She was in over her head, and she was just going to have to trust in her wits and the heartstone to find her way back out. But first, she'd have to discover where this path would lead her. Time to keep moving. She had work to do, and people in London—especially a certain ex—who might just make her yearn for the secluded dangers of the Fae Grove.
created_at
"2026-02-17T01:47:43.785558+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
532
moderation_latency
175
generation_time
83376
tokens_prompt
812
tokens_completion
2170
native_tokens_prompt
758
native_tokens_completion
1908
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
0.020975
router
(null)
provider_responses
0
id
"ad6b6590-f2ae-4dad-8244-cb5d62e28fda"
status
200
is_byok
false
latency
532
endpoint_id
"cd63714a-d459-4806-bdf2-0dfea4f6614c"
provider_name
"Cohere"
model_permaslug
"cohere/command-r-plus-08-2024"
api_type
"completions"
id
"gen-1771292779-EXkBLAVQUXDBvvRnTN2C"
upstream_id
"ad6b6590-f2ae-4dad-8244-cb5d62e28fda"
total_cost
0.020975
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Cohere"
Evaluation details
Result
Evaluator
Details
Meta Data
66.6667%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
5
adverbTagCount
1
adverbTags
0
"she muttered, fingers still tight around the pendant [still]"
93.2569%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1483
totalAiIsmAdverbs
1
found
0
adverb
"softly"
count
1
highlights
0
"softly"
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)
25.8260%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1483
totalAiIsms
11
found
0
word
"beacon"
count
1
1
word
"sentinels"
count
1
2
word
"churning"
count
1
3
word
"gleaming"
count
1
4
word
"oppressive"
count
1
5
word
"loomed"
count
1
6
word
"stark"
count
1
7
word
"footsteps"
count
1
8
word
"echoed"
count
2
9
word
"echoing"
count
1
highlights
0
"beacon"
1
"sentinels"
2
"churning"
3
"gleaming"
4
"oppressive"
5
"loomed"
6
"stark"
7
"footsteps"
8
"echoed"
9
"echoing"
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
91
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
1
narrationSentences
91
filterMatches
(empty)
hedgeMatches
0
"begin to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
2
totalSentences
92
matches
0
"right, that whatever"
1
"understanding that she'd"
38.1392%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
30
mean
49.27
std
13.97
cv
0.283
sampleLengths
0
66
1
61
2
90
3
67
4
44
5
69
6
48
7
64
8
46
9
55
10
35
11
59
12
52
13
51
14
23
15
28
16
52
17
41
18
63
19
39
20
35
21
40
22
42
23
38
24
38
25
37
26
42
27
57
28
55
29
41
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
91
matches
0
"were gone"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
3
totalVerbs
238
matches
0
"was screaming"
1
"was holding"
2
"was hunting"
94.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1453
adjectiveStacks
1
stackExamples
0
"small, sun-drenched meadow,"
adverbCount
44
adverbRatio
0.030282174810736407
lyAdverbCount
15
lyAdverbRatio
0.01032346868547832
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
92
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
92
mean
16.07
std
7.35
cv
0.458
sampleLengths
0
22
1
27
2
17
3
24
4
15
5
18
6
4
7
21
8
20
9
12
10
25
11
12
12
17
13
14
14
16
15
9
16
11
17
14
18
30
19
21
20
12
21
15
22
21
23
8
24
11
25
19
26
10
27
8
28
22
29
20
30
14
31
14
32
21
33
5
34
6
35
17
36
16
37
22
38
3
39
2
40
10
41
20
42
19
43
26
44
14
45
30
46
22
47
17
48
9
49
25
53.2609%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
1
diversityRatio
0.32608695652173914
totalSentences
92
uniqueOpeners
30
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
5
fancyCount
5
fancyTags
0
"murmured (murmur)"
1
"whispered (whisper)"
2
"With a sharp exhale, she whispered, (whisper)"
3
"she whispered, taking a step back toward the direction from which she'd come (whisper, take come)"
4
"she muttered, fingers still tight around the pendant (mutter)"
80.6559%