NC Bench
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Run: 2026-02-17-01KHMME37K01YBSQG294K93FMJ
Run Details
Model:
Cohere Command R+ (Aug. 2024)
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
30.2s
Cost:
$0.014785
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 ancient oak trees
loomed
like silent guardians, their gnarled branches framing the entrance to the Fae Grove. Aurora, her heart pounding in her throat, stepped
cautiously
under the archway of intertwined branches, leaving the modern world behind. Night had fallen, casting Richmond Park in a shroud of darkness, but here in the Grove, a mystical light illuminated the clearing. Wildflowers
dance
d in an unfelt breeze, their colors vibrant even in the
spectral
glow. A faint hum, like the distant thrumming of insect wings, filled the air, setting her nerves on edge. Rory had received a mysterious message—a simple location and time, no explanation. It had come just as she
was finishing
her deli
very
route, a
solitary
run through the park's winding paths. Intrigued yet cautious, she had made her way here, to this secretive clearing, only to find herself even more alone and uncertain. She
look
ed down at the Heartstone Pendant resting against her chest, its silver chain cool against her skin. Its warm crimson glow seemed almost in sync with her own heartbeat. She had no idea who had sent it to her or why, but it had arrived in the mail the previous week, a shimmering
enigma
that had pulled her
inexorably
toward this
very
spot. The air grew heavy with
anticipation
, and Rory swore she could feel unseen eyes upon her, tracking her e
very
movement. She spun around, scanning the perimeter marked by the towering oaks, but nothing seemed
amiss
. The wildflowers continued their serene
dance
, and the grove whispered with the unintelligible language of the wind. "Hello?" she called out, her voice breaking the unnatural stillness. "Anyone there?" No answer came, save for the persistent, mysterious hum, now joined by the distant hooting of an owl. Her breath formed faint clouds in the crisp night air, giving her a
surreal
sense of detachment. Trust your instincts, she thought. There's something here, something hidden. As if in response to her
unspoken
thoughts, a nearby patch of wildflowers rustled as though disturbed by an unseen force. Rory's hand flew to the pendant, her heart quickening. Taking a cautious step forward, she studied the spot where the flowers had twitched, half expecting to find a woodland creature or an errant breeze. But there was nothing. The clearing felt smaller now, as though the standing stones had shifted closer together, tightening the boundaries of this hidden realm. Aurora's breath quickened as she realized the light had dimmed imperceptibly, the wildflowers losing their vibrant hue. She was certain now; this place was not what it seemed. "Why did you bring me here?" she whispered into the gloom, her words carried away by the whispering wind. The pendant
began to
glow brighter, its pulse quickening like a
beacon
seeking to draw attention. In that moment, she knew it was not just a trinket, but a key, a conduit to something more. As her gaze fixed on the crimson stone, the hum intensified, and the world
seemed to
twist around her. Shadows
dance
d at the edge of her vision, forming shapes that eluded her direct stare. Rory's
stomach dropped
as she sensed the true nature of this place, the hidden boundary between realms. The ground beneath her feet
seemed to
shift, and she stumbled, catching herself against a gnarled tree root. Her fingers dug into the rough bark, searching for stability in a world that
suddenly
felt fluid and unreal. Her breath came in quick gasps, each exhalation visible in the cold air. Then, as
quickly
as it had begun, the
surreal
sensation passed. The light stabilized, and the hum receded, leaving her shaky and disoriented. Rory stood upright, smoothing her hands down the front of her jacket, a physical attempt to steady her rattled nerves. Taking slow, deliberate steps, she made her way toward the center of the Grove, drawn by an unseen force. With each step, the pendant's glow increased, casting an
ethereal
light that
dance
d around her. The grove
seemed to
react to her presence, the wildflowers swaying in her wake, as if in greeting or farewell. At the heart of the clearing, Rory stopped, closing her eyes and taking a deep, steadying breath. She reached for the pendant, her fingers wrapping
tightly
around the cool stone. "Show me," she demanded, her voice strong and steady, belying her inner turmoil. In response, the world shifted once more, but this time, she was prepared. The standing stones
shimmered
, no longer solid but translucent portals into another realm. The boundaries between worlds thinned, revealing a glimpse of a place beyond—a realm of shadows and
dancing
lights, where figures moved with
otherworldly
grace. Aurora's breath caught at the sight of the Faerie realm, a place she'd only ever heard whispered tales about. It was beautiful, enchanting, and dangerous—a place where humans were seldom welcome. The pendant pulsed with a life of its own, as if
yearning
to return to its home. Then, as
suddenly
as it had opened, the veil closed, leaving her alone in the earthly grove. She released a breath she hadn't known she'd been holding, her heart racing. "I see you now," she murmured, addressing the unknown force that had led her here. "But why me?" The pendant continued to glow in her grasp, its warmth a silent reassurance. She knew this was only the beginning, a first step into a hidden world. She just hoped she was ready for what came next. With one last lingering
look
around the mystical clearing, Rory turned and retraced her steps, leaving the Fae Grove behind. As she stepped back into the mortal realm, the pendant's glow dimmed, returning to its usual quiet radiance. The night air, once again ordinary, caressed her face as she made her way back to the city streets, leaving the supernatural encounter behind. But Aurora Carter
knew that her
life had just taken an irrevocable turn, and she was eager to uncover the mysteries that awaited her.
created_at
"2026-02-17T01:47:00.635726+00:00"
2/17/2026, 1:47:00 AM
model
"cohere/command-r-plus-08-2024"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
176
moderation_latency
189
generation_time
29965
tokens_prompt
812
tokens_completion
1517
native_tokens_prompt
758
native_tokens_completion
1289
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
0.014785
router
(null)
provider_responses
0
id
"84d39c02-1d3d-4e22-856a-4142536b8618"
status
200
is_byok
false
latency
176
endpoint_id
"cd63714a-d459-4806-bdf2-0dfea4f6614c"
provider_name
"Cohere"
model_permaslug
"cohere/command-r-plus-08-2024"
api_type
"completions"
id
"gen-1771292790-0p8D0mRUhhkp3qbDnhKO"
upstream_id
"84d39c02-1d3d-4e22-856a-4142536b8618"
total_cost
0.014785
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)
29.5065%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
993
totalAiIsmAdverbs
7
found
0
adverb
"cautiously"
count
1
1
adverb
"inexorably"
count
1
2
adverb
"quickly"
count
1
3
adverb
"suddenly"
count
2
4
adverb
"tightly"
count
1
5
adverb
"very"
count
1
highlights
0
"cautiously"
1
"inexorably"
2
"quickly"
3
"suddenly"
4
"tightly"
5
"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
993
totalAiIsms
16
found
0
word
"ethereal"
count
1
1
word
"beacon"
count
1
2
word
"enigma"
count
1
3
word
"shimmered"
count
1
4
word
"spectral"
count
1
5
word
"otherworldly"
count
1
6
word
"surreal"
count
2
7
word
"loomed"
count
1
8
word
"unspoken"
count
1
9
word
"solitary"
count
1
10
word
"anticipation"
count
1
11
word
"yearning"
count
1
12
word
"dance"
count
1
13
word
"dancing"
count
1
14
word
"amiss"
count
1
highlights
0
"ethereal"
1
"beacon"
2
"enigma"
3
"shimmered"
4
"spectral"
5
"otherworldly"
6
"surreal"
7
"loomed"
8
"unspoken"
9
"solitary"
10
"anticipation"
11
"yearning"
12
"dance"
13
"dancing"
14
"amiss"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"stomach dropped/sank"
count
1
highlights
0
"stomach dropped"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
60
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
4
narrationSentences
60
filterMatches
0
"look"
hedgeMatches
0
"began to"
1
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
62
matches
0
"knew that her"
66.8679%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
25
mean
39.6
std
15.21
cv
0.384
sampleLengths
0
38
1
54
2
53
3
64
4
52
5
12
6
35
7
10
8
59
9
49
10
19
11
35
12
51
13
50
14
43
15
54
16
30
17
13
18
50
19
48
20
30
21
18
22
37
23
38
24
48
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
0
totalSentences
60
matches
(empty)
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
1
totalVerbs
167
matches
0
"was finishing"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
975
adjectiveStacks
0
stackExamples
(empty)
adverbCount
35
adverbRatio
0.035897435897435895
lyAdverbCount
12
lyAdverbRatio
0.012307692307692308
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
62
echoCount
0
echoWords
(empty)
80.6293%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
62
mean
15.97
std
5.61
cv
0.352
sampleLengths
0
18
1
20
2
22
3
14
4
18
5
12
6
19
7
22
8
18
9
12
10
34
11
20
12
15
13
17
14
10
15
2
16
18
17
17
18
5
19
5
20
21
21
9
22
25
23
4
24
21
25
17
26
11
27
19
28
16
29
19
30
19
31
15
32
17
33
18
34
19
35
13
36
11
37
12
38
20
39
19
40
15
41
20
42
17
43
13
44
13
45
13
46
13
47
24
48
19
49
12
67.7419%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
3
diversityRatio
0.43548387096774194
totalSentences
62
uniqueOpeners
27
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
4
fancyCount
3
fancyTags
0
"whispered (whisper)"
1
"she demanded, her voice strong and steady, belying her inner turmoil (demand)"
2
"she murmured, addressing the unknown force that had led her here (murmur, address lead)"
79.1027%