NC Bench
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Run: 2026-02-17-01KHMPADVVTED4TBCZPRK2JGQY
Run Details
Model:
GPT-4o, Aug. 6th (temp=0)
Test:
Bad Writing Habits
Scenario:
Romance: separated couple reunites
Duration:
21.1s
Cost:
$0.012705
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 an intensity that made her heart skip a beat. "Rory," he said, his voice smooth and accented, a hint of amusement playing at the corners of his lips. "It's been a while." She swallowed, trying to ignore the flutter in her chest. "Lucien," she replied, her voice steadier than she felt. "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." Rory stepped inside, closing the door behind her. The familiar scent of curry from the restaurant below mingled with the musty aroma of old books, a comforting reminder of the countless hours she'd spent here with Eva. "I came to pick up some notes," she explained, gesturing to the cluttered table piled high with scrolls and papers. Lucien nodded, his gaze lingering on her face. "You look well," he said, his tone softer now, almost tentative. She shrugged, brushing a strand of black hair behind her ear. "I'm managing." There was a pause, the air between them thick with
unspoken
words. Rory busied herself with the papers, trying to ignore the way his presence
seemed to
fill the small space, making it hard to breathe. "How's the restaurant?" Lucien asked, breaking the silence. "Busy," she replied, glancing up at him. "Yu-Fei keeps me on my toes." He smiled, a genuine warmth in his expression that made her chest ache. "I can imagine." Rory turned her attention back to the notes, her fingers brushing against the familiar texture of Eva's handwriting. She could feel Lucien's eyes on her, a
weight
she both resented and craved. It had been months since they'd last seen each other, months since she'd walked away from the tangled mess of their relationship, determined to put distance between them. But now, standing here in the cramped flat, she couldn't deny the pull she still felt towards him, the way her heart
seemed to
recognize him even when her mind insisted she should keep her distance. "Rory," he said, his voice low, almost a whisper. "About what happened..." She shook her head, cutting him off. "Lucien, don't." He took a step closer, the scent of his cologne — something dark and spicy — enveloping her. "I never meant to hurt you," he said, his eyes searching hers. She met his gaze, the sincerity in his mismatched eyes making her resolve waver. "I know," she said
softly
. "But it doesn't change what happened." He nodded, a shadow passing over his features. "I wish things were different." "Me too," she admitted, the words slipping out before she could stop them. They stood there, the silence stretching between them, filled with the ghosts of what might have been. Rory could feel the familiar ache in her chest, the longing for something she knew she couldn't have. Lucien reached out, his fingers brushing against the small crescent-shaped scar on her left wrist. "I miss you," he said, his voice barely audible. Her breath caught in her throat, the simple admission cutting through her defenses. She wanted to tell him she missed him too, that she thought about him more often than she cared to admit. But the words stuck in her throat, tangled with the fear of opening herself up to the possibility of being hurt again. Instead, she stepped back, putting distance between them. "I should go," she said, her voice firmer now. Lucien's expression
flickered
with disappointment, but he nodded, understanding in his eyes. "Take care, Rory." She turned away, her heart heavy as she gathered the notes she needed. As she moved towards the door, Ptolemy, the tabby cat, wound his way around her ankles, a soft purr rumbling in his chest. She bent down, scratching behind his ears, grateful for the distraction. "Goodbye, Lucien," she said, her voice
barely above a whisper
. "Goodbye, Rory," he replied, his tone laced with a sadness that mirrored her own. She left the flat, the door closing behind her with a soft click. As she descended the narrow staircase, the
weight
of what had just transpired settled over her, a bittersweet reminder of the connection they shared, and the distance that still lay between them. Outside, the streets of Brick Lane
were bustling
with life, the air filled with the sounds of laughter and conversation. Rory paused, taking a deep breath, the cool evening air a balm against the turmoil inside her. She knew she couldn't change the past, couldn't undo the choices that had led them to this point. But as she walked away from Eva's flat, she couldn't shake the feeling that maybe, just maybe, their story wasn't over yet.
created_at
"2026-02-17T02:19:48.736849+00:00"
2/17/2026, 2:19:48 AM
model
"openai/gpt-4o-2024-08-06"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
525
moderation_latency
(null)
generation_time
20618
tokens_prompt
808
tokens_completion
1278
native_tokens_prompt
754
native_tokens_completion
1082
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
0.012705
router
(null)
provider_responses
0
id
"chatcmpl-DA4yN7PGSXd3aT3WqiGpi76bCWPE3"
status
200
is_byok
false
latency
525
endpoint_id
"9d15935a-34e6-4a5e-a5bc-c7dda213e876"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-4o-2024-08-06"
api_type
"completions"
id
"gen-1771294767-jJs0KwCOep54DKvdSSfq"
upstream_id
"chatcmpl-DA4yN7PGSXd3aT3WqiGpi76bCWPE3"
total_cost
0.012705
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
14.2857%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
14
adverbTagCount
5
adverbTags
0
"he said, his tone softer now, almost tentative [almost]"
1
"he said, his voice low, almost a whisper [almost]"
2
"she said softly [softly]"
3
"he said, his voice barely audible [barely]"
4
"she said, her voice barely above a whisper [barely]"
64.2857%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
840
totalAiIsmAdverbs
3
found
0
adverb
"lightly"
count
1
1
adverb
"softly"
count
1
2
adverb
"barely above a whisper"
count
1
highlights
0
"lightly"
1
"softly"
2
"barely above a whisper"
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)
52.3810%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
840
totalAiIsms
4
found
0
word
"flickered"
count
1
1
word
"unspoken"
count
1
2
word
"weight"
count
2
highlights
0
"flickered"
1
"unspoken"
2
"weight"
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
51
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
2
narrationSentences
51
filterMatches
(empty)
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
62
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
30
mean
28.03
std
16.35
cv
0.583
sampleLengths
0
64
1
23
2
24
3
30
4
57
5
19
6
13
7
36
8
8
9
13
10
16
11
60
12
36
13
12
14
9
15
30
16
25
17
13
18
13
19
35
20
24
21
56
22
17
23
15
24
47
25
10
26
14
27
45
28
37
29
40
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
0
totalSentences
51
matches
(empty)
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
1
totalVerbs
132
matches
0
"were bustling"
94.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
746
adjectiveStacks
1
stackExamples
0
"small crescent-shaped scar"
adverbCount
23
adverbRatio
0.030831099195710455
lyAdverbCount
5
lyAdverbRatio
0.006702412868632708
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
62
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
62
mean
13.56
std
7.66
cv
0.565
sampleLengths
0
24
1
12
2
28
3
19
4
4
5
10
6
9
7
5
8
13
9
17
10
8
11
29
12
20
13
8
14
11
15
11
16
2
17
12
18
24
19
8
20
7
21
6
22
13
23
3
24
18
25
14
26
28
27
36
28
9
29
3
30
7
31
2
32
18
33
12
34
14
35
5
36
6
37
8
38
5
39
13
40
17
41
18
42
15
43
9
44
13
45
21
46
22
47
8
48
9
49
12
62.9032%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
1
diversityRatio
0.3870967741935484
totalSentences
62
uniqueOpeners
24
32.1429%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
14
fancyCount
8
fancyTags
0
"he said, his voice smooth and accented, a hint of amusement playing at the corners of his lips (say, accent)"
1
"she replied, her voice steadier than she felt (reply, feel)"
2
"she explained, gesturing to the cluttered table piled high with scrolls and papers (explain, gesture pile)"
3
"she replied, glancing up at him (reply, glance)"
4
"he said, his eyes searching hers (say, search)"
5
"she said softly (say softly)"
6
"she admitted, the words slipping out before she could stop them (admit, slip out stop)"
7
"he replied, his tone laced with a sadness that mirrored her own (reply, lace mirror)"
83.5293%