NC Bench
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Run: 2026-02-17-01KHMR8EXFMJ6YKMFABB0Y4YXA
Run Details
Model:
GPT-4.1 Nano
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
13.2s
Cost:
$0.000747
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> <character id="4418" name="Nyx" aliases="Nyx, the Shadow, Nightwhisper" pronouns="they/them" species="Shade" storyRole="Wild Card"> <eyeColor>faintly glowing violet</eyeColor> <height>approximately 6'2" in solid form</height> <age>ageless</age> <form>humanoid silhouette of living shadow, can shift between solid and incorporeal</form> <voice>sounds like a whisper carried on the wind</voice> <description>A being of living shadow, existing between the mortal plane and the spaces between realms.</description> <backstory>Nyx was once a human sorcerer named Aldric who became trapped between realms during a failed summoning ritual in 1643. They now exist as a Shade, bound to the mortal plane but able to slip between shadows.</backstory> </character> <character id="4424" name="Isolde Varga" aliases="Isolde, the Seer" pronouns="she/her" species="Half-Fae" storyRole="Oracle"> <eyeColor>pale lavender</eyeColor> <hair>silver, reaching her waist</hair> <height>5'5"</height> <age>300 years old</age> <appearance>ethereal, ageless</appearance> <speech>speaks in riddles</speech> <footprints>leaves no footprints when she walks</footprints> <compulsion>cannot lie (Fae compulsion) but can mislead</compulsion> <description>A Half-Fae seer exiled from the Fae Courts for sharing visions with mortals.</description> <backstory>She now lives in a hidden grove in Richmond Park, offering cryptic prophecies to those who seek her out.</backstory> </character> <location id="853" name="Dymas (Gluttony)" aliases="Dymas, gluttony, Dymasian" realm="Hel" sin="Gluttony"> <ruler>Prince Belphegor</ruler> <skyColor>warm amber</skyColor> <description>A place of excess and indulgence. Sprawling vineyards, orchards, and gardens provide exotic ingredients for master chefs — often helbound souls contracted from Earth. Grand feasts and culinary competitions are common.</description> </location> <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> <item id="2006" name="Fae-Forged Blade" aliases="the Fae blade, Isolde's gift" type="Weapon" origin="The Fae Courts"> <material>moonsilver</material> <shape>slender, leaf-shaped dagger</shape> <temperature>always cold to the touch</temperature> <glow>faintly luminescent in moonlight</glow> <power>can cut through magical wards; particularly effective against demons</power> <givenTo>given to Aurora by Isolde as a gift</givenTo> <description>A weapon of the Fae Courts, rare and highly coveted.</description> </item> <lore id="7001" name="The Veil" aliases="the Veil, the Barrier, the Boundary" category="Cosmology"> <solsticeEffect>weakens during the winter solstice, strengthens during the summer solstice</solsticeEffect> <appearance>faint shimmering distortion visible only to those with supernatural sight</appearance> <monitoring>rift points (tears in the Veil) are monitored by the Wardens</monitoring> <description>The Veil is the metaphysical barrier separating Earth from Hel and the Fae Realms.</description> </lore> </codex> Write a fully fleshed out scene of at least 1000 words in the fantasy genre. A small group enters an ancient, otherworldly place for the first time. The environment is alien and wondrous. Describe their exploration — what they see, hear, and feel as they move deeper. Include moments of discovery, unease, and wonder. Let the world-building emerge through the characters' experience rather than exposition. Use the codex entries above as your world reference for characters, setting, and lore. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
The air shifted as they stepped past the ancient oak standing stones, a ripple of something unseen passing through the shadows that clung stubbornly to the edges of the clearing. Aurora paused, her eyes narrowing
slightly
as she took in the riot of colors blooming in the damp, fertile air—wildflowers stretching upwards, their petals shimmering faintly in hues too vibrant for any conventional spring, as if they carried whispers of a realm untouched by time. The moment she crossed the boundary, her senses prickled—a faint, humming vibrated deep in her bones, not entirely unpleasant, but decidedly alien. Nyx slithered forward like a shadow unbound, their form
flicker
ing between solid and intangible, violet eyes glowing
softly
in the dim,
surreal
light. The shifting silhouette moved between the trees, whispering
softly
, voice like wind threading through leaves. “This is no ordinary grove,” they murmured, voice like a secret carried on the breeze. “The Veil thins here.” Isolde Varga’s silver hair
shimmered
in the strange light, her gaze sweeping over the surroundings with an air of cautious reverence. She left no footprints, the grass undisturbed beneath her steps, an
ephemeral
presence in this
otherworldly
sanctum. “Fae’s realm,” she told them quietly, eyes reflecting the strange luminescence around them. “A mirror of what was, what might have been—if not for the boundary.” They all
felt that sense
of suspended time, where an hour inside could be a matter of minutes outside, or worse, days. Outside, the world moved on, but here—here, moments str
etched
and folded like the petals of the blooming flowers, unending, yet fleeting. The whisper of soft wind played tricks of sound—music, perhaps, or some ancient language woven into a melody only the woods understood. Aurora’s fingertips brushed the pendant at her neck—the Heartstone, pulsating faintly, warm against her skin. She looked down at it, the crimson gem whispering of Dymas and a realm of excess, its glow faint and almost hesitant, as if wary of awakening something older than she could understand. Nyx shifted again, their form sliding into partial shadow as they pointed ahead. “Beyond the trees, the stone circle waits. Carefully, Aurora.” The girl nodded, clutching the Fae-forged blade given to her by Isolde as reassurance. The blade was always cold, the luminescent glow in moonlight
dancing
over its slender leaf-shaped form. She drew it
carefully
, more to touch the strange, untouched magic than because she believed it would be needed—yet. E
very
step into this uncharted sanctum deepened her awareness of something vast and awake. The remaining trees parted to reveal a clearing—an amphitheater of glowing stones, each one like a miniature mirror, shimmering with a faint, iridescent sheen. Their surfaces reflected and distorted the world around them, tossing fragments of light and shadow in dizzying patterns. Aurora marveled at the sight—the stones seemed alive, their edges
softly
humming with an ancient energy that thrummed beneath her feet. She stepped forward, eyes tracing the faint carvings
etched
into their surfaces—symbols she couldn’t recognize, yet somehow felt familiar, like memories buried deep. A faint pulse emanated from the heart of the circle, intimate and steady, calling her closer. Nyx floated above, their form shimmering with darker shadows. “This is the threshold,” they whispered, voice blending with the wind. “The boundary between worlds. Here, the Veil is thinnest.” Isolde’s lips curled into a riddle. “Time whispers here, and shadows breathe. Beware the allure of fleeting glimpses.” Aurora took a cautious step forward, her gaze fixed on the pulsating heart of the circle. Her hand reached instinctively for the Heartstone pendant—warm now, stronger than before—just as she felt a sudden, strange shift in the air. The shimmering distortion rippled, and the stones’ surface was no longer static but
flickered
with sudden movement—images,
flicker
ing like flames, flashed across their surfaces. Scenes from distant worlds—towers of glass and steel, ancient forests with no end, skies swirling with colors she’d never seen—flooded her vision. Instinct told her to step back, but her feet stayed firm. Her senses thrummed with the pull of the unknown, a siren call woven into the
very
fabric of this realm. Nyx’s whisper drew her attention, “See what lies beyond, if you dare. But be warned—nothing here is
truly
stable.” From behind, the faint shh of wind became a whispering chorus, voices caught in a moment of eternal breath, looping through unseen corridors. It was beautiful, and unsettling. Aurora’s stomach clenched as the
echoes
danced around her, whispering riddles and warnings—visions of the Veil
flicker
ing, rifts tearing through the fabric of the realms, shadows slipping between worlds. She grasped the Fae blade tighter, its cold temperature grounding her. “We need to find the rift points,” she said, voice steady despite the faint tremor of
apprehension
in her chest. “We can’t stay here forever. The Veil’s weakening—if we don’t act, it might tear.” Isolde’s voice drifted like smoke, cryptic and hushed. “The boundary’s breath is shallow. Seek the balance—between too much and too little. The future is written in the stars, and the stars are in the shadows.” The air grew thick with a new presence—an almost imperceptible shift that invisibly tugged at them, urging them deeper. Aurora’s eyes caught a
flicker
at the edge of her vision—something dark and streaming, like shadow-bound tendrils stretching from the stones, whispering silent promises of knowledge and power. Nyx’s faintly glowing violet eyes
watched that border
with practiced patience. “The darkness is restless,” they murmured. “It craves to slip beyond the Veil, like tendrils seeking the sun.” Aurora hesitated, heart pounding. Her fingers stroked the Heartstone pendant, feeling its warmth and the faint pulse of power. Her mind raced—she had to decide whether to press on, risking the unknown truths behind the shadow’s whisper, or retreat to the safety of the outside, where the world’s quiet, familiar rhythm awaited. But even as she hesitated, she knew there was no true retreat. Not here. The realm was alive—an ancient, breathing entity, holding its secrets tight, waiting just beneath the shimmering surface. The shadows beckoned, promising answers and danger intertwined. She took a deep breath, centering herself and gripping her blade tighter. The boundary was fragile, on the verge of shattering, on the verge of revealing what lay beneath its thin veneer. “Whatever’s waiting,” she said
softly
, voice steady, “we find it. We fix this. No more waiting.” In the strange glow of the grove, amid whispers of shadows and the faint pulse of the Heartstone, Aurora knew this was only the beginning. The world rippled and
trembled
at its edge, and she, like all who dared stare at the abyss, wouldn’t turn away.
created_at
"2026-02-17T02:53:33.353183+00:00"
2/17/2026, 2:53:33 AM
model
"openai/gpt-4.1-nano-2025-04-14"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
883
moderation_latency
(null)
generation_time
13021
tokens_prompt
1590
tokens_completion
1830
native_tokens_prompt
1533
native_tokens_completion
1484
native_tokens_completion_images
0
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
"completed"
usage
0.0007469
router
(null)
provider_responses
0
id
"resp_0ed163721c2b2f64016993d81fbe6c8194891f4fd51b25962d"
status
200
is_byok
false
latency
136
endpoint_id
"9251cee5-5503-4be9-9439-7ae21ff062a3"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-4.1-nano-2025-04-14"
api_type
"completions"
id
"gen-1771296799-I9Je3rHXPXgrVRkg5XtU"
upstream_id
"resp_0ed163721c2b2f64016993d81fbe6c8194891f4fd51b25962d"
total_cost
0.0007469
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
38.0952%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
7
adverbTagCount
2
adverbTags
0
"she told them quietly, eyes reflecting the strange luminescence around them [quietly]"
1
"she said softly, voice steady [softly]"
19.8575%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1123
totalAiIsmAdverbs
9
found
0
adverb
"carefully"
count
2
1
adverb
"slightly"
count
1
2
adverb
"softly"
count
4
3
adverb
"truly"
count
1
4
adverb
"very"
count
1
highlights
0
"carefully"
1
"slightly"
2
"softly"
3
"truly"
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)
2.0481%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1123
totalAiIsms
11
found
0
word
"ephemeral"
count
1
1
word
"flickered"
count
1
2
word
"flicker"
count
1
3
word
"shimmered"
count
1
4
word
"trembled"
count
1
5
word
"otherworldly"
count
1
6
word
"surreal"
count
1
7
word
"apprehension"
count
1
8
word
"dancing"
count
1
9
word
"echoes"
count
1
10
word
"etched"
count
1
highlights
0
"ephemeral"
1
"flickered"
2
"flicker"
3
"shimmered"
4
"trembled"
5
"otherworldly"
6
"surreal"
7
"apprehension"
8
"dancing"
9
"echoes"
10
"etched"
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
56
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
0
narrationSentences
56
filterMatches
(empty)
hedgeMatches
(empty)
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
2
totalSentences
64
matches
0
"felt that sense"
1
"watched that border"
75.8326%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
24
mean
45.71
std
18.99
cv
0.415
sampleLengths
0
97
1
57
2
64
3
43
4
70
5
22
6
63
7
63
8
39
9
29
10
18
11
62
12
53
13
19
14
57
15
45
16
35
17
47
18
29
19
52
20
39
21
32
22
16
23
46
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
0
totalSentences
56
matches
(empty)
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
0
totalVerbs
159
matches
(empty)
92.0916%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
972
adjectiveStacks
1
stackExamples
0
"slender leaf-shaped form."
adverbCount
41
adverbRatio
0.04218106995884774
lyAdverbCount
18
lyAdverbRatio
0.018518518518518517
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
64
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
64
mean
17.14
std
7.88
cv
0.459
sampleLengths
0
30
1
45
2
22
3
23
4
15
5
15
6
4
7
21
8
17
9
13
10
13
11
22
12
21
13
22
14
15
15
33
16
13
17
9
18
14
19
16
20
19
21
14
22
24
23
18
24
21
25
23
26
16
27
9
28
11
29
9
30
6
31
12
32
16
33
22
34
24
35
22
36
11
37
20
38
19
39
23
40
5
41
29
42
11
43
20
44
14
45
8
46
27
47
19
48
28
49
11
54.6875%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
5
diversityRatio
0.375
totalSentences
64
uniqueOpeners
24
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
7
fancyCount
7
fancyTags
0
"they murmured, voice like a secret carried on the breeze (murmur, like carry on)"
1
"she told them quietly, eyes reflecting the strange luminescence around them (tell reflect)"
2
"they whispered, voice blending with the wind (whisper, voice blending)"
3
"Nyx’s whisper drew her attention, (drew)"
4
"she said, voice steady despite the faint tremor of apprehension in her chest (say, voice)"
5
"they murmured (murmur)"
6
"she said softly, voice steady (say softly, voice)"
75.4478%