NC Bench
Overview
About
Tests
Models
Vendors
Run: 2026-02-17-01KHMPBYEV2N4MZ0DYYDW4C4B3
Run Details
Model:
GPT-4o, May 13th (temp=1)
Test:
Bad Writing Habits
Scenario:
Romance: separated couple reunites
Duration:
11.5s
Cost:
$0.023570
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="4415" name="Lucien Moreau" aliases="Lucien, Luc, the Frenchman" pronouns="he/him" species="Half-Demon" storyRole="Ally"> <eyeColor>heterochromatic — one amber, one black</eyeColor> <hair>slicked-back platinum blond</hair> <height>5'11"</height> <age>32</age> <cane>ivory-handled cane that conceals a thin blade</cane> <dress>tailored charcoal suits</dress> <description>An impeccably dressed fixer and information broker in London's supernatural underworld. He speaks four languages fluently.</description> <backstory>Born in Marseille to a human mother and a demon father from the realm of Avaros.</backstory> </character> <location id="858" name="Eva's Flat" aliases="Eva's place, the flat on Brick Lane" realm="Earth"> <cat>tabby cat named Ptolemy</cat> <security>three deadbolts on the front door</security> <description>A cramped one-bedroom flat above a curry house on Brick Lane, East London. Every surface is covered with books, scrolls, and research notes.</description> </location> </codex> Write a fully fleshed out scene of at least 1000 words in the romance genre. Two people who parted on complicated terms are forced together again when one shows up unannounced at the other's flat. There's history between them — attraction, hurt, and things left unsaid. Write the scene from the moment the door opens. Use the codex entries above as your world reference for characters and setting. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
Rory fitted the final delivery order—a krab rangoon and sesame chicken combo—into her insulated bag and pulled her black puffer coat tighter around her slender shoulders. The Golden Empress buzzed with activity behind her as she pushed her way through the crowd, Yu-Fei yelling directions to his kitchen staff in Mandarin. Rory escaped into the rainy London evening, her breath escaping in quick, condensed puffs. Brick Lane awaited her, bustling despite the drizzle. The scent of turmeric and cumin mixed with the sharp tang of exhaust fumes, reminding Rory both of home and of a life she wasn’t sure she could ever
truly
escape. She descended the narrow staircases and made her way to Eva’s flat, canvassing streets lined with neon and shadow. Rory edged towards the aging townhouse that Eva called home. She had been meaning to catch up with Eva and return the half-finished tome on ancient languages she'd borrowed, but not now. Certainly not after the whisper she'd heard at Silas' bar earlier that evening. The three deadbolts clunked and rattled before the door swung open, inviting the cold. Rory trudged up the narrow staircase, each step groaning in protest underfoot, until she reached the top. Rory shook her keychain free from her pocket, slipped the thin key into the lock, and turned the knob. The door creaked open, and she immediately felt a rush of warm air and familiarity. But as the hinges gave way, the room she knew so well was altered—if not by its static furnishings, then by the man standing in the middle of it. “Rory,” came the measured,
velvet
tone of Lucien Moreau. He was impeccably dressed, as always, in a tailored charcoal suit, his ivory-handled cane leaning casually against the cluttered bookshelf. His heterochromatic gaze—one amber, one black—pinned her as effectively as his languid smile. “What are you doing here, Lucien?” she demanded, voice too sharp and too quick to mask the tremor of her pulse. “Bonsoir to you as well,” he replied, a faint smile touching his lips. “Eva isn’t home. But she told me you might be dropping by.” “She did, did she?” Rory scoffed, closing the door behind her and peeling off her rain-dampened coat. She avoided his eyes, instead focusing on hanging her rangy coat on the already crowded hook. “Yes, quite the intellectual gathering here,” he said, gesturing towards the piles of books and scrolls sprawling across the cramped space. “I hope I’m not intruding.” “Is there ever a time you’re not?” Rory shot back. She had not seen him since that last assignment—an escapade through the demon-infested underground tunnels of King’s Cross—left them both with more scars than success. “Touché.” Lucien’s mouth curved in a way that made Rory’s heart pound faster than she would have liked. He stepped nearer, and she caught a whiff of his cologne—dark, woody, with a hint of something exotic. “Yet, it is good to see you in one piece.” She glanced at him through her lashes. “What do you want?” “I thought you’d appreciate a bit of company,” he replied smoothly, the blade of his cane scraping
softly
against the floorboards as he leaned on it. “We did leave things unfinished, after all.” Rory’s eyes
flickered
to the crescent-shaped scar on her wrist, a
stark
reminder of the last reckless endeavor they had taken on together. “That night—” “We are bound to past entanglements, aren’t we?” Lucien interrupted, his voice dropping to a lower, more intimate register. “But we shouldn’t
let that define
us.” “It’s not that simple, Lucien. We can’t pretend like nothing happened,” she whispered, memories of close calls and whispered secrets closing in around her. “No?” Lucien drew a step closer, his eyes reflecting both depth and distance. “I find it immensely simple, chérie. We acknowledge. We adapt. We move forward.” Rory’s resolve faltered. There was something
magnetic
about Lucien that she couldn’t deny—a pull that defied reason or safety. She turned towards the small kitchen, seeking a distraction. “Would you like some tea?” Lucien raised an eyebrow. “Not coffee this time? How uncharacteristically domestic of you, Rory.” “It’s been a long day,” she muttered, pulling out two mismatched mugs and filling the kettle. The mundane task steadied her. “Tea it is.” As the kettle whistled, Lucien surveyed the flat, taking in each detail with the astuteness of someone constantly aware of their surroundings. “Ptolemy seems to approve of me,” he noted, nodding toward the tabby cat curled up on a stack of ancient manuscripts. “Ptolemy approves of anyone who might feed him,” Rory replied, pouring the hot water over the tea bags. She handed Lucien a steaming mug, their fingers briefly touching, sending an electric jolt up her arm. “Merci.” He accepted the mug, his fingers grazing hers longer than necessary. They stood there, an arm’s length apart, each sip of tea an excuse to delay the inevitable conversation. Finally, Lucien took a step towards the small, covered balcony. Rory hesitated before following, the breeze chillier but somehow more liberating. They stood overlooking Brick Lane, the bustle below a
stark
contrast to the quiet tension between them. “I didn’t come here just to reminisce, Rory,” Lucien began, his voice
barely above a whisper
. “There’s a disturbance—something on the horizon. I need someone I can trust.” She sighed, knowing where this conversation
was heading
. “Why me? You have plenty of connections, Lucien. Why drag me back into this?” His eyes softened, and for a moment, the
facade
slipped. “Because you’re the best person I know for this. And… because I trust you.” Rory looked away,
the weight of his words
pressing down on her. “You’ve got me for now,” she conceded, “but if this goes south, we’re done.” “Understood,” he replied, relief mingling with the slight curve of his lips. They stood there for a moment longer, the unsaid words
cascading
around them like the rain on the streets below.
created_at
"2026-02-17T02:20:28.727629+00:00"
2/17/2026, 2:20:28 AM
model
"openai/gpt-4o-2024-05-13"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
340
moderation_latency
(null)
generation_time
11406
tokens_prompt
808
tokens_completion
1609
native_tokens_prompt
754
native_tokens_completion
1320
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
0.02357
router
(null)
provider_responses
0
id
"chatcmpl-DA4zAL9v9WV7QrvdJL2RV4WGsHaa0"
status
200
is_byok
false
latency
317
endpoint_id
"3d6584e7-a2bb-48d6-903d-24e3d90e7e55"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-4o-2024-05-13"
api_type
"completions"
id
"gen-1771294816-cTkznYxlCLOCwuEDG6PS"
upstream_id
"chatcmpl-DA4zAL9v9WV7QrvdJL2RV4WGsHaa0"
total_cost
0.02357
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
77.7778%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
12
adverbTagCount
2
adverbTags
0
"he replied smoothly, the blade of his cane scraping softly against the floorboards as he leaned on it [smoothly, softly]"
1
"Lucien began, his voice barely above a whisper [barely]"
70.0000%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1000
totalAiIsmAdverbs
3
found
0
adverb
"softly"
count
1
1
adverb
"barely above a whisper"
count
1
2
adverb
"truly"
count
1
highlights
0
"softly"
1
"barely above a whisper"
2
"truly"
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)
20.0000%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1000
totalAiIsms
8
found
0
word
"facade"
count
1
1
word
"flickered"
count
1
2
word
"cascading"
count
1
3
word
"velvet"
count
1
4
word
"magnetic"
count
1
5
word
"stark"
count
2
6
word
"weight"
count
1
highlights
0
"facade"
1
"flickered"
2
"cascading"
3
"velvet"
4
"magnetic"
5
"stark"
6
"weight"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"weight of words/silence"
count
1
highlights
0
"the weight of his words"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
54
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
0
narrationSentences
54
filterMatches
(empty)
hedgeMatches
(empty)
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
68
matches
0
"let that define"
76.9057%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
31
mean
31.74
std
13.31
cv
0.419
sampleLengths
0
65
1
58
2
45
3
65
4
29
5
42
6
21
7
25
8
33
9
26
10
35
11
46
12
11
13
33
14
25
15
26
16
24
17
26
18
33
19
14
20
24
21
43
22
35
23
30
24
38
25
28
26
22
27
24
28
26
29
12
30
20
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
0
totalSentences
54
matches
(empty)
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
1
totalVerbs
125
matches
0
"was heading"
94.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
782
adjectiveStacks
1
stackExamples
0
"demon-infested underground tunnels"
adverbCount
28
adverbRatio
0.03580562659846547
lyAdverbCount
12
lyAdverbRatio
0.015345268542199489
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
68
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
68
mean
14.47
std
6.62
cv
0.457
sampleLengths
0
26
1
25
2
14
3
8
4
31
5
19
6
10
7
22
8
13
9
14
10
17
11
19
12
15
13
29
14
9
15
20
16
13
17
21
18
13
19
12
20
17
21
16
22
21
23
5
24
10
25
25
26
18
27
18
28
10
29
7
30
4
31
26
32
7
33
23
34
2
35
19
36
7
37
24
38
13
39
13
40
3
41
16
42
9
43
5
44
4
45
10
46
16
47
5
48
3
49
22
78.9216%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
3
diversityRatio
0.5
totalSentences
68
uniqueOpeners
34
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
12
fancyCount
12
fancyTags
0
"came the measured, velvet tone of Lucien Moreau (come)"
1
"demanded (demand)"
2
"he replied, a faint smile touching his lips (reply, touch)"
3
"he said, gesturing towards the piles of books and scrolls sprawling across the cramped space (say, gesture scrolls sprawling)"
4
"he replied smoothly, the blade of his cane scraping softly against the floorboards as he leaned on it (reply smoothly, scrape softly lean)"
5
"she whispered, memories of close calls and whispered secrets closing in around her (whisper, whisper close in)"
6
"she muttered, pulling out two mismatched mugs and filling the kettle (mutter, pull out mismatch fill)"
7
"he noted, nodding toward the tabby cat curled up on a stack of ancient manuscripts (note, nod curl up)"
8
"Rory replied, pouring the hot water over the tea bags (reply, pour)"
9
"Lucien began, his voice barely above a whisper (begin)"
10
"she conceded (concede)"
11
"he replied, relief mingling with the slight curve of his lips (reply, mingle)"
83.3885%