NC Bench
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Run: 2026-02-17-01KHMMC98DV21YGR7SC8J76GCC
Run Details
Model:
Claude 3 Haiku
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
22.3s
Cost:
$0.001999
Provider:
Amazon Bedrock
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 Fae Grove was silent but for the rustling of the leaves above. Aurora pulled her jacket tighter against the chill as she stepped into the clearing, the gravel crunching beneath her boots. The pendant at her throat pulsed with a faint warmth, guiding her way. She had come here for a reason, though the memory felt hazy, distant. Something about a message, a summons from an unknown source. Her friends had begged her not to go, but Rory had waved off their concerns. She could handle herself. She was always the one they turned to in a crisis, the cool head, the problem solver. But as she glanced around the grove,
a shiver ran down her spine
. The night felt unnaturally still, the shadows deeper, the trees more gnarled and twisted than she remembered. That had to be her imagination, surely. But the pendant at her throat grew warmer, pulsing in time with the thrum of her heartbeat. Rory's gaze swept the clearing, searching for any sign of what had drawn her here. The standing stones, their surfaces worn smooth by time,
loomed
at the edge of the grove, a silent and ominous presence. Beyond them, the park lay dark and quiet, swallowed by the night. A twig snapped somewhere in the underbrush, and Rory whirled towards the sound, pulse pounding in her ears. She strained to peer into the gloom, but the trees and bushes blended into an impenetrable wall of shadow. "Hello?" she called out, her voice sounding small and uncertain in the vast stillness. "Is anyone there?" No answer. Only the eerie silence pressing in around her. Slowly, Rory turned back towards the center of the clearing, her gaze drawn to the twisted, gnarled trunk of the old oak tree. It
seemed to
loom over her, its branches reaching down like grasping claws. She shivered again, and the pendant pulsed with increasing warmth against her skin. Rory's fingers trailed along the chain, her thumb tracing the outline of the crimson stone. It had become a familiar talisman, a comfort in the strange new world she had found herself in. But now, its gentle glow only served to highlight the encroaching darkness, the growing sense of wrongness that pressed in around her. A faint rustling, barely audible, came from the bushes behind her. Rory whirled, heart pounding, but saw nothing. Her breath misted in the chill air as she strained to listen, to catch any other sound that might betray the presence of another. But the grove remained silent, save for the relentless pulsing of the pendant. Rory's
eyes narrowed
as she scanned the shadows, searching for any sign of movement. The pendant's warmth against her skin was a steady, reassuring presence, but it did little to ease the growing unease that gnawed at her. Something was wrong here, deeply and fundamentally wrong. And she couldn't shake the feeling that she
was being
watched. Carefully, she
began to
make her way towards the standing stones, her
footsteps
light and cautious. The gravel crunched beneath her boots, the sound seeming to
echo
unnaturally in the stillness. Each step felt like a struggle, as if the
very
air
were conspiring
to slow her progress. As she neared the stones, the pendant pulsed more insistently, the warmth radiating up her neck and into her cheek. Rory paused, one hand raised to shield her eyes as she peered into the gloom beyond the boundary. There, in the shadows, something moved. A
flicker
of motion, too fast to make out. Rory's breath caught in her throat, her muscles tensing as she strained to catch another glimpse. But the darkness swallowed it, leaving only the steady thrum of the pendant to break the silence. Rory's fingers tightened around the stone, its warmth a steadying presence as she forced herself to take another step forward. The boundary of the grove
loomed
before her, the standing stones rising up like silent
sentinels
. She reached out, her fingertips brushing the rough surface of one of the ancient oaks. A sudden, piercing scream rent the air, so close and so
anguished that Rory
recoiled, her heart racing. She whirled, searching frantically for the source, but the grove remained silent and still, the shadows as impenetrable as ever. "Hello?" she called out, her voice cracking with uncertainty. "Is someone there? Are you alright?" No response. Only the relentless pulsing of the pendant, the warmth now nearly scalding against her skin. Rory's gaze swept the clearing, her mind racing. She had to get out of here, had to find help. But the boundary
seemed to
waver and shift, the trees and bushes blending together in an indistinct mass of shadow and unnatural stillness. She took a step backwards, then another, her eyes never leaving the darkness beyond the standing stones. The pendant burned against her skin, its pulse quickening in time with her own ragged breaths. And then, beyond the boundary, she saw it. A hulking shape, darkerthan the shadows, moving with a fluid, unsettling grace. Rory's breath caught in her throat as it turned towards her, two glowing eyes piercing the gloom. She turned and ran, heart pounding, the gravel crunching beneath her boots as she fled. The pendant bounced against her chest, its warmth a constant reminder of the danger that lurked in the shadows. The trees
seemed to
reach for her as she ran, their gnarled branches grasping and clawing. Rory ducked and dodged, her lungs burning, but the shadows only
seemed to
grow thicker, the air heavier and more
oppressive
with each passing step. Finally, she burst out of the grove, emerging into the relative safety of the park beyond. But as she paused, gasping for breath,
a sense of dread
settled over her. The pendant still pulsed with warmth, a steady, insistent rhythm. And Rory knew, with a sinking certainty, that whatever lurked in the shadows of the Fae Grove was not yet finished with her.
created_at
"2026-02-17T01:45:53.297031+00:00"
2/17/2026, 1:45:53 AM
model
"anthropic/claude-3-haiku"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
461
moderation_latency
140
generation_time
21769
tokens_prompt
812
tokens_completion
1494
native_tokens_prompt
838
native_tokens_completion
1432
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
0.0019995
router
(null)
provider_responses
0
id
"a1f301cf-15c0-485a-af6d-d43fece9e07f"
status
200
is_byok
false
latency
450
endpoint_id
"401c6f0f-caeb-4c84-92b7-e163dbccf7c2"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-3-haiku"
api_type
"completions"
id
"gen-1771292730-r01k9FCWwRzHYGBUOa85"
upstream_id
"a1f301cf-15c0-485a-af6d-d43fece9e07f"
total_cost
0.0019995
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
2
adverbTagCount
0
adverbTags
(empty)
69.7581%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
992
totalAiIsmAdverbs
3
found
0
adverb
"carefully"
count
1
1
adverb
"slowly"
count
1
2
adverb
"very"
count
1
highlights
0
"carefully"
1
"slowly"
2
"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)
29.4355%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
992
totalAiIsms
7
found
0
word
"sentinels"
count
1
1
word
"flicker"
count
1
2
word
"oppressive"
count
1
3
word
"loomed"
count
2
4
word
"footsteps"
count
1
5
word
"echo"
count
1
highlights
0
"sentinels"
1
"flicker"
2
"oppressive"
3
"loomed"
4
"footsteps"
5
"echo"
66.6667%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
3
maxInWindow
2
found
0
label
"shiver down spine"
count
1
1
label
"eyes widened/narrowed"
count
1
2
label
"sense of foreboding"
count
1
highlights
0
"a shiver ran down her spine"
1
"eyes narrowed"
2
"a sense of dread"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
1
narrationSentences
67
matches
0
"a sense of dread"
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
5
narrationSentences
67
filterMatches
(empty)
hedgeMatches
0
"seemed to"
1
"began to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
69
matches
0
"anguished that Rory"
66.5186%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
27
mean
36.74
std
14.06
cv
0.383
sampleLengths
0
46
1
59
2
54
3
48
4
37
5
17
6
10
7
49
8
55
9
42
10
13
11
57
12
48
13
38
14
31
15
17
16
51
17
38
18
15
19
17
20
42
21
33
22
37
23
34
24
41
25
30
26
33
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
2
totalVerbs
151
matches
0
"was being"
1
"were conspiring"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
981
adjectiveStacks
0
stackExamples
(empty)
adverbCount
34
adverbRatio
0.034658511722731905
lyAdverbCount
17
lyAdverbRatio
0.017329255861365953
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
69
echoCount
0
echoWords
(empty)
90.6209%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
69
mean
14.38
std
5.41
cv
0.377
sampleLengths
0
13
1
20
2
13
3
13
4
10
5
15
6
4
7
17
8
13
9
17
10
7
11
17
12
15
13
21
14
12
15
18
16
19
17
14
18
3
19
2
20
8
21
23
22
13
23
13
24
15
25
18
26
22
27
11
28
7
29
24
30
13
31
14
32
24
33
8
34
11
35
16
36
15
37
17
38
20
39
18
40
6
41
9
42
16
43
17
44
20
45
16
46
15
47
18
48
20
49
9
50.2415%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
2
diversityRatio
0.3188405797101449
totalSentences
69
uniqueOpeners
22
100.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
2
fancyCount
0
fancyTags
(empty)
86.6612%