NC Bench
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Run: 2026-02-17-01KHMPEV4NFFA6PD27ZS61GXV8
Run Details
Model:
GPT-4o, Aug. 6th (temp=0)
Test:
Bad Writing Habits
Scenario:
Romance: separated couple reunites
Duration:
35.2s
Cost:
$0.016565
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
The door to Eva's flat swung open with a creak, revealing Aurora Carter standing on the threshold, her bright blue eyes wide with surprise. She hadn't expected to see him here, not after all this time. Lucien Moreau leaned casually against the doorframe, his heterochromatic eyes — one amber, one black — studying her with a mixture of amusement and something else she couldn't quite place. "Rory," he said, his voice smooth and accented, a hint of France lingering in the vowels. "It's been a while." She swallowed, her heart doing an involuntary flip at the sound of her name on his lips. "Lucien," she replied, trying to keep her voice steady. "What are you doing here?" He straightened, the ivory-handled cane in his hand tapping
lightly
against the floor. "Eva asked me to check on Ptolemy while she's away. I didn't expect to find you here." Aurora stepped inside, closing the door behind her with a soft click. The familiar scent of spices from the curry house below mingled with the musty aroma of old books, creating a comforting, if
slightly
overwhelming, atmosphere. Ptolemy, the tabby cat,
was curled
up on a pile of scrolls, watching them with lazy interest. "I needed a place to think," she admitted, glancing around at the cluttered room. "Eva's flat is... quiet." Lucien chuckled, a low, rich sound that
sent a shiver down
her spine. "Quiet? With all these books threatening to topple over at any moment?" She
couldn't help but smile
, a small, reluctant curve of her lips. "You know what I mean." He nodded, his expression softening. "I do." There was a pause, the air between them thick with
unspoken
words. Aurora shifted her
weight
, tucking a strand of black hair behind her ear. The small crescent-shaped scar on her left wrist caught the light, a reminder of a childhood accident and, perhaps, of the scars that couldn't be seen. "How have you been?" Lucien asked, his gaze lingering on her face. "Busy," she replied, a touch too
quickly
. "Work, you know." "Still delivering for Yu-Fei?" "Yeah," she said, nodding. "It's... steady." He tilted his head, studying her with those mismatched eyes. "And how's life above Silas' bar treating you?" "It's fine," she said, a little defensively. "It's not Cardiff, but it's home." Lucien's lips quirked into a half-smile. "I never imagined you'd end up in a place like that." "Neither did I," she admitted, her voice softening. "But here we are." "Here we are," he
echoed
, his tone thoughtful. Another silence settled over them, the kind that was both comfortable and charged with tension. Aurora moved to the small kitchenette, busying herself with the kettle. "Tea?" she offered, more to fill the space than anything else. "Please," Lucien replied, watching her with an intensity that made her fingers fumble with the cups. As the water boiled, she felt his presence behind her, a warmth that was both reassuring and unsettling. She turned, finding him closer than she'd expected, his gaze
unwavering
. "Why did you
really
come here, Rory?" he asked, his voice low. She hesitated, the truth hovering on the tip of her tongue. "I needed to get away," she said finally. "From everything." "From him?" Lucien's question was gentle, but it cut through her defenses like a blade. "Yes," she admitted, her voice
barely above a whisper
. "From Evan." His expression darkened, a
flicker
of something dangerous in his eyes. "If he ever—" "He won't," she interrupted, her tone firm. "I won't let him." Lucien nodded, but the tension in his jaw remained. "You deserve better, Rory." She looked away, focusing on the steam rising from the kettle. "I know." He reached out, his fingers brushing against her wrist, just above the scar. The touch was light, almost hesitant, but it
sent a jolt through
her, a reminder of the connection they'd once shared. "Do you?" he asked
softly
. She met his gaze, the question hanging between them like a fragile thread. "I do," she said, more to convince herself than him. The kettle whistled, breaking the moment. Aurora turned back to the task at hand, pouring the hot water into the cups. She handed one to Lucien, their fingers brushing briefly. "Thank you," he said, his voice a little rougher than before. They moved to the small table by the window, the city lights casting a soft glow over the room. Ptolemy stretched, yawning widely before settling back into his nap. "Do you ever miss it?" Lucien asked, cradling his cup in his hands. "Miss what?" "Cardiff. Your old life." Aurora considered the question, her mind drifting back to memories of green hills and familiar faces. "Sometimes," she admitted. "But I don't regret leaving." He nodded, understanding in his eyes. "London suits you." "Does it?" she asked, a hint of skepticism in her voice. "It does," he said, a smile playing at the corners of his mouth. "You're stronger here." She laughed
softly
, a sound that was both genuine and
tinged
with disbelief. "I don't always
feel that way
." "You are," he insisted, his gaze steady. "I've seen it." They fell into a companionable silence, sipping their tea as the city hummed around them. The tension that had lingered between them
began to
ease, replaced by a sense of familiarity that was both comforting and bittersweet. "Lucien," she said after a while, her voice tentative. "Yes?" "Why did we stop talking?" He sighed, a long, slow exhale that
seemed to
carry the
weight
of
unspoken
regrets. "I think we both needed space," he said finally. "To figure things out." "Did you?" she asked, her heart in her throat. He met her gaze, his eyes searching hers. "I did," he said, his voice steady. "And I realized something." "What?" "That I miss you," he said simply. "More than I thought possible." Her breath caught, the words both a balm and a wound. "I miss you too," she admitted, the confession slipping out before she could stop it. He reached across the table, his hand covering hers. The touch was warm, grounding, and she felt something inside her
begin to
thaw. "Maybe we can start over," he suggested, hope threading through his voice. "Maybe," she agreed, a tentative smile breaking through. "I'd like that." They sat together, hands entwined, as the city outside continued its relentless pace. In the quiet of Eva's flat, surrounded by books and memories, they found a moment of peace, a chance to begin again.
created_at
"2026-02-17T02:22:27.163639+00:00"
2/17/2026, 2:22:27 AM
model
"openai/gpt-4o-2024-08-06"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
540
moderation_latency
(null)
generation_time
35028
tokens_prompt
808
tokens_completion
1684
native_tokens_prompt
754
native_tokens_completion
1468
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
0.016565
router
(null)
provider_responses
0
id
"chatcmpl-DA50h0OxKd1k0soWaCvqfxTjkl5mn"
status
200
is_byok
false
latency
501
endpoint_id
"9d15935a-34e6-4a5e-a5bc-c7dda213e876"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-4o-2024-08-06"
api_type
"completions"
id
"gen-1771294911-7FidN9YeVHWzdRSESTTb"
upstream_id
"chatcmpl-DA50h0OxKd1k0soWaCvqfxTjkl5mn"
total_cost
0.016565
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
33.3333%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
30
adverbTagCount
9
adverbTags
0
"she admitted, glancing around at the cluttered room [around]"
1
"she replied, a touch too quickly [too quickly]"
2
"she said, a little defensively [defensively]"
3
"she said finally [finally]"
4
"she admitted, her voice barely above a whisper [barely]"
5
"she said, more to convince herself than him [more]"
6
"he said, his voice a little rougher than before [little]"
7
"he said finally [finally]"
8
"he said simply [simply]"
35.2451%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1081
totalAiIsmAdverbs
7
found
0
adverb
"lightly"
count
1
1
adverb
"quickly"
count
1
2
adverb
"slightly"
count
1
3
adverb
"softly"
count
2
4
adverb
"barely above a whisper"
count
1
5
adverb
"really"
count
1
highlights
0
"lightly"
1
"quickly"
2
"slightly"
3
"softly"
4
"barely above a whisper"
5
"really"
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)
25.9944%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1081
totalAiIsms
8
found
0
word
"tinged"
count
1
1
word
"flicker"
count
1
2
word
"unwavering"
count
1
3
word
"unspoken"
count
2
4
word
"weight"
count
2
5
word
"echoed"
count
1
highlights
0
"tinged"
1
"flicker"
2
"unwavering"
3
"unspoken"
4
"weight"
5
"echoed"
33.3333%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
3
maxInWindow
3
found
0
label
"couldn't help but"
count
1
1
label
"sent a shiver through"
count
2
highlights
0
"couldn't help but smile"
1
"sent a shiver down"
2
"sent a jolt through"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
76
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
3
narrationSentences
76
filterMatches
(empty)
hedgeMatches
0
"began to"
1
"seemed to"
2
"begin to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
110
matches
0
"feel that way"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
59
mean
18.29
std
12.9
cv
0.706
sampleLengths
0
66
1
20
2
31
3
30
4
54
5
18
6
25
7
17
8
7
9
51
10
12
11
10
12
4
13
6
14
18
15
13
16
17
17
12
18
8
19
37
20
16
21
29
22
12
23
21
24
15
25
11
26
14
27
11
28
13
29
13
30
34
31
5
32
23
33
30
34
11
35
29
36
13
37
2
38
4
39
24
40
9
41
11
42
16
43
19
44
10
45
37
46
9
47
1
48
5
49
28
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
76
matches
0
"was curled"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
0
totalVerbs
154
matches
(empty)
94.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
843
adjectiveStacks
1
stackExamples
0
"small crescent-shaped scar"
adverbCount
29
adverbRatio
0.03440094899169632
lyAdverbCount
13
lyAdverbRatio
0.01542111506524318
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
110
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
110
mean
9.81
std
5.86
cv
0.597
sampleLengths
0
24
1
12
2
30
3
16
4
4
5
17
6
9
7
5
8
13
9
17
10
12
11
25
12
17
13
14
14
4
15
13
16
12
17
12
18
5
19
5
20
2
21
12
22
13
23
26
24
12
25
7
26
3
27
4
28
4
29
2
30
10
31
8
32
7
33
6
34
6
35
11
36
8
37
4
38
8
39
15
40
11
41
11
42
16
43
18
44
11
45
12
46
11
47
8
48
2
49
15
68.4848%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
3
diversityRatio
0.42727272727272725
totalSentences
110
uniqueOpeners
47
25.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
30
fancyCount
18
fancyTags
0
"he said, his voice smooth and accented, a hint of France lingering in the vowels (say, accent, linger)"
1
"she replied, trying to keep her voice steady (reply, try keep)"
2
"she admitted, glancing around at the cluttered room (admit, glance around)"
3
"she said, nodding (say, nod)"
4
"she admitted, her voice softening (admit, soften)"
5
"he echoed, his tone thoughtful (echo)"
6
"Lucien replied, watching her with an intensity that made her fingers fumble with the cups (reply, watch make)"
7
"she said finally (say finally)"
8
"she admitted, her voice barely above a whisper (admit)"
9
"she interrupted, her tone firm (interrupt)"
10
"she said, more to convince herself than him (say, convince)"
11
"she admitted (admit)"
12
"he insisted, his gaze steady (insist)"
13
"he said finally (say finally)"
14
"he said simply (say simply)"
15
"she admitted, the confession slipping out before she could stop it (admit, slip out stop)"
16
"he suggested, hope threading through his voice (suggest, thread)"
17
"she agreed, a tentative smile breaking through (agree, break)"
77.3759%