NC Bench
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Run: 2026-02-17-01KHMRB19D0EME24W6HE4MDJ4M
Run Details
Model:
GPT-4.1 Nano
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
12.6s
Cost:
$0.000717
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
shimmered
oddly as Aurora Carter stepped beneath the ancient oak standing stones, her boots crunching
softly
on the mossy ground. Shadows
flickered
at the edges of her vision, and a cool, humming silence pressed inward. Beside her, Nyx’s presence was almost
tangible
—a faint ripple that no eye could see but that Aurora felt deep within her bones. The shadow’s form was fluid, like dark smoke woven into human shape, always shifting but unmoving now, tethered to the threshold of the Grove. “Glad you could make it,” Aurora murmured, her voice almost lost in the stillness. Her bright blue eyes scanned the world that stretched beyond the boundary—the edges of Richmond Park, familiar yet
utterly
transformed. The wildflowers bloomed vigorously, their colors more vivid here, spilling over like spilled ink across the landscape. The scent was unlike anything on Earth: a heady mixture of honeyed sweetness and smoky spice, drifting
lazily
in the heavy, warm air. Nyx’s whisper-like voice emanated from the shadows beside her. “This place… it’s not like any other. The Veil thins here. Be cautious.” Ahead, the clearing stretched into a strange vista—an effervescent
mosaic
of colors and forms. The horizon
shimmered
with iridescent hues, hues that
seemed to
pulse with their own life. There was no real sky—only a swirling aurora of perpetual twilight, painted in streaks of violet and amber. Somewhere distant, a faint melody drifted—soft, haunting, and as fluid as water,
echoing
in the spaces between the trees. Aurora reached for the Heartstone Pendant around her neck, the crimson gem flickering faintly as she held it aloft. Nearer, the faint glow of her Fae-Forged Blade caught the scant light, casting sil
very
gleams that danced across the foliage. She felt a prickling down her spine, an instinct born of years of caution, but also wonder. This was uncharted territory—an intersection of worlds, a place of ancient power. Nyx’s shadow shifted, elongating and condensing into a more solid form—an almost-gesture of reassurance. “The Veil weakens here. Watch your step. The spirits of old lurk close, and the realm itself breathes differently.” They moved forward, step by cautious step, and the ground beneath their feet altered subtly. The moss gave way to smooth, strange stones—pale and shimmering as if dipped in starlight. Aurora reached down and brushed her fingers over one, surprised by how warm it felt, unlike any stone she knew. It pulsed
softly
, like the heartbeat of the world itself. “Feels alive,” she whispered, eyes
gleaming
with curiosity and caution. She shifted her
weight
, feeling the faint tremor beneath the stones, like the rhythm of a vast, hidden pulse. It radiated outward, steady and reassuring yet
tinged
with the untamed wildness of this place. She remembered Isolde’s words—visions of secrets beyond mortal comprehension, voices that could mislead as much as they revealed. From her pocket, she fingered the Fae-Forged Blade, its coolness a
stark
contrast to the warmth of the soil. She had no doubt that it was oddly suited for this place, for cutting through magic and unseen barriers. It hummed faintly, a living extension of the moonlit night from which it came. The melody persisted, weaving between the branches—something ancient, something alive. Aurora paused, sensing it was a call, or perhaps a warning. Her mind
flickered
to Isolde’s cryptic prophecies, the visions that had whispered of danger and truths lying just beyond reach. Nyx drifted ahead into the shimmering space, dissolving into the shadows that flitted about like fleeting specters. Aurora hesitated, then followed, drawn onward by an irresistible pull. Around her, the landscape grew
surreal
—trees with bark that
shimmered
like the surface of a dark lake, their leaves shimmering with translucent light. Flowers, bigger than her fist, opened and closed
slowly
, as if breathing. Suddenly, beneath her feet, the ground shifted. A faint ripple spread outward, and a new presence rippled into existence—more
tangible
than shadow, yet strange and unearthly. Aurora stared, heart pounding, as a figure emerged from the dense foliage. It was Isolde Varga, the Seer. Her silver hair cascaded like moonlight on water, and her pale lavender eyes held depths that
seemed to
shimmer with secret truths. She moved with an effortless grace, her
footsteps
silent as her footprints left no trace on the moss. “You walk where the edges thin,” Isolde's voice sounded in riddles, her words strangely soothing and unsettling all at once. “Here, time is a stranger. Trust what you see, but heed what you sense.” Aurora lowered her weapon
slightly
, instinctively trusting the ancient figure. “We’re looking for… something. A doorway, or a sign. Anything that can tell us what’s happening beyond the Veil.” Isolde’s gaze
flickered
, analytical and distant. “The world whispers here, but its voice is layered in riddles. Beware of the
echoes
. They deceive as much as they reveal.” Nyx reappeared beside her, shadow pulsing
softly
. “There’s something nearby—a tear, a fracture in the Veil. I can feel it, faint but growing. We have to be quick.” As if to confirm, a subtle tremor coursed through the ground, shaking loose a handful of glowing, translucent blossoms that floated
gently
down around them. Aurora caught one, feeling its cool, pulsing surface. It
shimmered
with all the colors of the sunset, timeless and dreamlike. Further in, the landscape bent and twisted, as if the space itself
was folding
inward, revealing strange, impossible angles. Aurora’s senses tensed. The realm’s
very
fabric seemed alive, pulsing with secrets too old to fully grasp. “How much further?” she asked
softly
, clutching the Heartstone Pendant tighter. Its faint glow was a comfort—proof that something of Dymas—and perhaps of hope—still connected to her. Isolde’s lips curled into a cryptic smile. “Beyond the knowing, beyond the seeing, lies the truth. But muist not forget—the Veil is fragile. And here, what is hidden can also find you.” As the whispers of the melody swelled into a near-hypnotic lullaby, Aurora felt her skin prickle with
anticipation
and unease. She knew this was only the beginning—not merely of a journey into a strange, wondrous realm, but into the depths of secrets that could shatter worlds or forge new ones. And she would need all her wit, her courage, and her blade to
navigate
what lay hidden in the shadows of this
otherworldly
place.
created_at
"2026-02-17T02:54:57.227176+00:00"
2/17/2026, 2:54:57 AM
model
"openai/gpt-4.1-nano-2025-04-14"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
963
moderation_latency
(null)
generation_time
12354
tokens_prompt
1590
tokens_completion
1692
native_tokens_prompt
1533
native_tokens_completion
1408
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
0.0007165
router
(null)
provider_responses
0
id
"resp_0e83c1526d0e2db5016993d8741cc48196bb4436d7fb759db6"
status
200
is_byok
false
latency
146
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-1771296884-bL7xVpiHCJXVGKr6E3Lu"
upstream_id
"resp_0e83c1526d0e2db5016993d8741cc48196bb4436d7fb759db6"
total_cost
0.0007165
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
0.0000%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
4
adverbTagCount
2
adverbTags
0
"Aurora murmured, her voice almost lost in the stillness [almost]"
1
"Isolde's voice sounded in riddles, her words strangely soothing and unsettling all at once [strangely once]"
0.0000%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1062
totalAiIsmAdverbs
11
found
0
adverb
"gently"
count
1
1
adverb
"lazily"
count
1
2
adverb
"slightly"
count
1
3
adverb
"slowly"
count
1
4
adverb
"softly"
count
4
5
adverb
"suddenly"
count
1
6
adverb
"utterly"
count
1
7
adverb
"very"
count
1
highlights
0
"gently"
1
"lazily"
2
"slightly"
3
"slowly"
4
"softly"
5
"suddenly"
6
"utterly"
7
"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
1062
totalAiIsms
21
found
0
word
"tangible"
count
2
1
word
"mosaic"
count
1
2
word
"tinged"
count
1
3
word
"flickered"
count
3
4
word
"shimmered"
count
4
5
word
"gleaming"
count
1
6
word
"otherworldly"
count
1
7
word
"surreal"
count
1
8
word
"stark"
count
1
9
word
"anticipation"
count
1
10
word
"weight"
count
1
11
word
"footsteps"
count
1
12
word
"echoes"
count
1
13
word
"echoing"
count
1
14
word
"navigate"
count
1
highlights
0
"tangible"
1
"mosaic"
2
"tinged"
3
"flickered"
4
"shimmered"
5
"gleaming"
6
"otherworldly"
7
"surreal"
8
"stark"
9
"anticipation"
10
"weight"
11
"footsteps"
12
"echoes"
13
"echoing"
14
"navigate"
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
58
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
2
narrationSentences
58
filterMatches
(empty)
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
65
matches
(empty)
65.7383%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
22
mean
47.27
std
17.97
cv
0.38
sampleLengths
0
83
1
74
2
22
3
66
4
68
5
33
6
60
7
62
8
52
9
41
10
62
11
38
12
46
13
34
14
29
15
28
16
28
17
45
18
36
19
27
20
32
21
74
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
0
totalSentences
58
matches
(empty)
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
1
totalVerbs
148
matches
0
"was folding"
80.4910%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
911
adjectiveStacks
1
stackExamples
0
"revealing strange, impossible angles."
adverbCount
45
adverbRatio
0.04939626783754116
lyAdverbCount
24
lyAdverbRatio
0.026344676180021953
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
65
echoCount
0
echoWords
(empty)
78.7444%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
65
mean
16
std
5.55
cv
0.347
sampleLengths
0
22
1
15
2
22
3
24
4
14
5
20
6
17
7
23
8
9
9
13
10
14
11
15
12
18
13
19
14
19
15
20
16
17
17
12
18
14
19
19
20
15
21
15
22
20
23
10
24
10
25
19
26
15
27
18
28
19
29
19
30
14
31
10
32
11
33
20
34
17
35
10
36
23
37
12
38
7
39
19
40
12
41
6
42
22
43
18
44
20
45
14
46
10
47
19
48
6
49
22
77.9487%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
1
diversityRatio
0.47692307692307695
totalSentences
65
uniqueOpeners
31
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
4
fancyCount
3
fancyTags
0
"Aurora murmured, her voice almost lost in the stillness (murmur, almost lose)"
1
"she whispered, eyes gleaming with curiosity and caution (whisper, gleam)"
2
"Isolde's voice sounded in riddles, her words strangely soothing and unsettling all at once (sound strangely sooth unsettle)"
70.7601%