NC Bench
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Run: 2026-02-17-01KHMQWHDAJQY6WM7HV606RQ18
Run Details
Model:
Gemini 2.5 Pro
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
41.5s
Cost:
$0.043241
Provider:
Google AI Studio
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 in Richmond Park was ordinary. It smelled of damp earth and the distant, exhaust-
tinged
breath of London. Rory Carter drew it deep into her lungs, a futile attempt to steady the tremor in her hands. Beside her, a
flicker
in her peripheral vision was all that marked Nyx’s presence, a human-shaped void against the mottled grey of the October sky. Before them stood Isolde Varga, a figure of impossible stillness. Her silver hair, a
stark
river against the dying autumn colours, caught what little light there was. She faced a circle of nine standing stones, hulking and moss-eaten, ancient as the bones of the island. They looked like forgotten teeth in the gums of the earth. “The world you know has thin places,” Isolde said, her voice the chime of distant bells. She didn't look at them as she spoke, her pale lavender eyes fixed on the largest of the stones. “Places where the skin of what is can be peeled back.” She reached out a slender, ageless hand and pressed her palm flat against the granite. No sound, no sudden flare of light. But Rory felt it. A thrumming in her teeth, a pressure behind her eyes as if the world were briefly holding its breath. The space between the stones
seemed to
shimmer, to warp like heat-haze on a summer road. Nyx solidified
slightly
, their form coalescing from shifting shadow into a sharper silhouette. “The Veil thins,” their voice whispered, a dry rustle of leaves that
seemed to
come from everywhere at once. “She is not just opening a door. She is inviting us through the wall.” Isolde stepped through the threshold. For a half-second, her form distorted, then vanished. Rory swallowed. Her heart hammered a frantic rhythm against her ribs. She glanced at the space where Isolde had been, now just an empty gap between two stones. “Right. Through the wall it is.” She took a breath and followed. The transition was like plunging into cold water. The sounds of London—the far-off siren, the drone of a plane—
were sliced
away, replaced by a
profound
, humming silence. The air grew thick, sweet with the scent of night-blooming jasmine and damp soil, a perfume that had no business being here in the London autumn. Rory blinked, her eyes struggling to adjust. They stood in a clearing bathed in a soft, pearlescent light that
seemed to
emanate from the air itself. The sky above wasn't grey, but a soft, twilight violet, starless and eternal. Wildflowers bloomed in a riot of impossible colour at their feet; cobalt bluebells nestled beside fiery summer poppies, and delicate snowdrops pushed up through moss the colour of emeralds. Towering silver birches and ancient, gnarled oaks formed a cathedral ceiling high above, their leaves a vibrant green that defied the season. “God,” Rory breathed, the word a small, lost thing in the immense quiet. She turned, expecting to see the standing stones, the gap leading back to the park. There was nothing. Just more of the impossible forest, closing them in. A knot of unease tightened in her gut. She could have been here five minutes or five hours; the light gave no clues. Her
watch
face was blank. “Time is a suggestion here,” Nyx whispered, their form more stable in the muted light, their violet eyes glowing faintly. “A story the Grove tells itself. It does not always tell it in order.” Rory looked down at her feet. Her boots had left dark prints in the lush moss. A few feet away, Nyx’s presence disturbed nothing. And ahead, Isolde
glided
over the ground, leaving no trace at all, a ghost in her own home. The sight was more unsettling than any overt display of power. Isolde led them deeper, following no discernible path. The silence
was broken
only by the soft pad of Rory’s
footsteps
and the whisper-drift of Nyx’s passage. The place felt
watch
ful. Rory’s hand strayed to the familiar shape of the Fae-forged blade tucked into her jacket, its moonsilver hilt always cold against her skin. Isolde’s gift. She
was beginning
to understand why she might need it. The pendant around her neck, usually inert, felt like a dead
weight
. The Heartstone was a thing of Hel, born of Dymasian excess. Here, in this place between Earth and the Fae realm, it seemed dormant, its faint inner glow extinguished. It was a relief. They came to the heart of the Grove, a clearing within the clearing. A vast, weeping willow, its branches like silver curtains, trailed into a
perfectly
still, circular pool. The water was black and reflective as polished obsidian, mirroring the starless violet sky without a ripple. The air here was even thicker, charged with a
palpable
energy that made the hairs on Rory’s arms stand on end. Isolde stopped at the water’s edge. “You seek answers for a question you have not yet learned to ask,” she said, her lavender gaze finally settling on Rory. “Show me the hunger you wear upon your breast.” Rory’s hand went automatically to the Heartstone Pendant. She hesitated for a moment, then pulled the silver chain over her head. The deep crimson gemstone, roughly the size of her thumbnail, lay inert in her palm. It looked like a drop of congealed blood. She held it out. Isolde didn’t take it. She merely looked at it, an
unreadable
expression on her
ethereal
face. “A key forged in a hungry fire. It longs for the lock. It sings a song of gluttony, calling to a door that should remain shut.” “A door to where?” Rory asked, her voice tight. “To a table that is never empty,” Isolde murmured, turning her gaze to the black pool. “To a feast where the guests are also the ingredients.” As she spoke, the surface of the water stirred. Not with ripples, but with images, milky and indistinct at first, then sharpening into focus. Rory leaned closer, mesmerized. She saw a sky the colour of warm amber, stretching over sprawling orchards heavy with unnaturally large fruit. She saw grand halls and kitchens vast as cathedrals, staffed by sweating, frantic figures in stained white aprons. A grand feast, a table groaning under the
weight
of golden platters piled high with food she couldn't name. The vision sharpened on a single figure at the head of the table, a Prince in silks, lifting a goblet to his lips. Rory couldn’t see his face, but a sense of ancient, all-consuming indulgence bled from the image, a need so
profound
it felt like a vacuum. “Dymas,” Nyx breathed, the name a sibilant hiss. The Shade’s form
shimmered
violently, as if the name itself were an irritant. “Belphegor’s domain.” The image in the pool swirled and vanished, leaving only the reflection of Rory’s own wide, bright blue eyes staring back. “The stone is a compass needle that points to the tear,” Isolde said, her voice soft but insistent. “It wants to go home. If the Veil is weak when it finds its way, the feast will spill over. The Bountiful Earth will become just another course on the Prince’s menu.” Rory’s fingers tightened around the pendant. It was no longer just a cryptic gift from an unknown benefactor. It was a threat. A responsibility. She thought of her part-time job delivering food for Yu-Fei, the mundane reality of her life in London. Her flat above the bar, the arguments she’d had with her barrister father about her choices. All of it felt a million miles away, a life lived by someone else. “What do I do?” she asked, the question raw. “A key can be used to open a lock,” Isolde replied, her riddle-speech infuriatingly calm. “Or it can be hidden so the door can never be found. Or,” she added, her pale lavender eyes meeting Rory’s with unnerving intensity, “it can be broken. But all things forged in a hungry fire burn the hand that tries to unmake them.” Rory tucked the pendant back under her shirt, the crimson stone cool against her skin. For now. She looked around at the impossible, beautiful, and terrifying Grove. The wonder she had felt upon entering had curdled into a cold dread. This wasn’t a
sanctuary
. It was a classroom, and she had just received her first, terrible lesson. The silence of the Grove pressed in, no longer wondrous, but waiting. Waiting for her to choose which door to close.
created_at
"2026-02-17T02:47:30.878113+00:00"
2/17/2026, 2:47:30 AM
model
"google/gemini-2.5-pro"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3369
moderation_latency
(null)
generation_time
41491
tokens_prompt
1590
tokens_completion
3219
native_tokens_prompt
1593
native_tokens_completion
4125
native_tokens_completion_images
0
native_tokens_reasoning
2273
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
0.04324125
router
(null)
provider_responses
0
status
200
is_byok
false
latency
3369
endpoint_id
"b261d15b-95ce-4c8c-8bce-00eb0dc1ff77"
provider_name
"Google AI Studio"
model_permaslug
"google/gemini-2.5-pro"
api_type
"completions"
id
"gen-1771296409-49OgRIbyrWU2nsOAvwQI"
upstream_id
(null)
total_cost
0.04324125
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
22.2222%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
12
adverbTagCount
4
adverbTags
0
"their voice whispered, a dry rustle of leaves that seemed to come from everywhere at once [everywhere once]"
1
"Nyx whispered, their form more stable in the muted light, their violet eyes glowing faintly [faintly]"
2
"she said, her lavender gaze finally settling on Rory [finally]"
3
"Isolde replied, her riddle-speech infuriatingly calm [infuriatingly]"
85.9056%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1419
totalAiIsmAdverbs
2
found
0
adverb
"perfectly"
count
1
1
adverb
"slightly"
count
1
highlights
0
"perfectly"
1
"slightly"
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)
1.3390%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1419
totalAiIsms
14
found
0
word
"palpable"
count
1
1
word
"ethereal"
count
1
2
word
"sanctuary"
count
1
3
word
"tinged"
count
1
4
word
"flicker"
count
1
5
word
"shimmered"
count
1
6
word
"glided"
count
1
7
word
"unreadable"
count
1
8
word
"profound"
count
2
9
word
"stark"
count
1
10
word
"weight"
count
2
11
word
"footsteps"
count
1
highlights
0
"palpable"
1
"ethereal"
2
"sanctuary"
3
"tinged"
4
"flicker"
5
"shimmered"
6
"glided"
7
"unreadable"
8
"profound"
9
"stark"
10
"weight"
11
"footsteps"
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
99
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
3
narrationSentences
99
filterMatches
0
"watch"
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
108
matches
(empty)
99.8268%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
31
mean
45.29
std
22.62
cv
0.499
sampleLengths
0
62
1
56
2
46
3
61
4
46
5
13
6
34
7
6
8
60
9
83
10
68
11
34
12
53
13
65
14
45
15
67
16
37
17
44
18
4
19
42
20
9
21
26
22
83
23
48
24
23
25
21
26
50
27
72
28
9
29
59
30
78
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
2
totalSentences
99
matches
0
"were sliced"
1
"was broken"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
1
totalVerbs
170
matches
0
"was beginning"
91.7193%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1197
adjectiveStacks
1
stackExamples
0
"distant, exhaust-tinged breath"
adverbCount
51
adverbRatio
0.042606516290726815
lyAdverbCount
14
lyAdverbRatio
0.011695906432748537
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
108
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
108
mean
13
std
7.15
cv
0.55
sampleLengths
0
7
1
12
2
18
3
25
4
10
5
17
6
18
7
11
8
16
9
19
10
11
11
15
12
7
13
4
14
19
15
16
16
13
17
19
18
14
19
5
20
8
21
2
22
9
23
17
24
6
25
6
26
8
27
19
28
26
29
7
30
19
31
13
32
29
33
22
34
13
35
15
36
3
37
9
38
8
39
15
40
5
41
20
42
14
43
6
44
10
45
8
46
18
47
11
48
8
49
18
46.2963%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
10
diversityRatio
0.3333333333333333
totalSentences
108
uniqueOpeners
36
8.3333%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
12
fancyCount
8
fancyTags
0
"Isolde said, her voice the chime of distant bells (say, voice)"
1
"their voice whispered, a dry rustle of leaves that seemed to come from everywhere at once (whisper, seem come)"
2
"Rory breathed, the word a small, lost thing in the immense quiet (breathe)"
3
"Nyx whispered, their form more stable in the muted light, their violet eyes glowing faintly (whisper, glow faintly)"
4
"she said, her lavender gaze finally settling on Rory (say, finally settle)"
5
"Isolde murmured, turning her gaze to the black pool (murmur, turn)"
6
"Nyx breathed, the name a sibilant hiss (breathe)"
7
"she added, her pale lavender eyes meeting Rory’s with unnerving intensity (add, meet be)"
79.7437%