NC Bench
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Run: 2026-02-17-01KHMMDG2KJMGSJMKRBTHH67P9
Run Details
Model:
Claude 3.5 Sonnet
Test:
Bad Writing Habits
Scenario:
Romance: separated couple reunites
Duration:
35.7s
Cost:
$0.049074
Provider:
Amazon Bedrock
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
Aurora's hand froze on the third deadbolt. Through the door's peephole, Lucien Moreau stood in the dim hallway, his platinum hair catching the fluorescent light. Of course he'd track her to Eva's flat. She should have known better than to think she could hide from London's most notorious information broker. Her heart thundered against her ribs as she undid the locks, each click
echoing
in the quiet flat. Ptolemy wound between her ankles, purring, oblivious to her tension. When she opened the door, the familiar scent of sandalwood and cigarettes washed over her. "Bonsoir, ma chérie." Lucien's mismatched eyes studied her face, one amber, one black, both intent. He leaned casually on his ivory-handled cane, but Aurora knew better – nothing about Lucien was ever casual. "It's past midnight," she said, proud of how steady her voice remained. "What are you doing here?" "Aren't you going to invite me in?" His French accent had thickened, the way it did when he was either angry or trying to charm someone. Right now, she couldn't tell which. Aurora crossed her arms. "The last time I saw you, you said, and I quote, 'It would be best if we didn't cross paths again.'" "Circumstances change." He straightened, and even without the advantage of his cane's added height, he towered over her. "May I come in? What I have to discuss shouldn't be overheard in hallways." The smart thing would be to shut the door in his face. But smart choices had never been her strong suit where Lucien
was concerned
. She stepped aside, letting him brush past her into Eva's cramped flat. His tailored charcoal suit
look
ed absurdly out of place among the teetering stacks of books and scattered research notes. Ptolemy immediately abandoned Aurora to rub against Lucien's legs, the traitor. "I see your friend's cat still hasn't learned to distinguish friend from foe," Lucien said, reaching down to scratch behind Ptolemy's ears. "Or maybe he's a better judge of character than I am." Aurora shut the door but didn't redo the locks. She wanted him to know this wasn't an invitation to stay. "What do you want, Lucien?" He straightened, turning to face her. In the warm lamplight, she could see the shadows under his eyes, the slight dishevelment of his usually immaculate hair. "You're in danger." "I'm always in danger. That's practically my default state these days." "This is different." He took a step toward her, and she fought the urge to back away. "Evan knows where you are." The name hit her like a punch to the gut. Her left wrist, where the crescent scar marked her skin,
began to
ache with phantom pain. "That's impossible. I was careful." "He hired someone. Someone good." Lucien's grip tightened on his cane. "But I'm better." Aurora turned away, needing to put space between them. The curry house below had closed hours ago, but the lingering scent of spices still permeated the flat. It usually comforted her. Tonight, it made her
feel
nauseated. "Why are you telling me this?" she asked. "Why do you care?" "You know why." She spun back to face him. "No, I don't. You made it
very
clear three months ago that whatever was between us was a liability. That I was a liability." "I was trying to protect you." "By pushing me away? That worked out brilliantly, didn't it?" Lucien crossed the distance between them in two long strides. This time, she did back up, until her spine hit Eva's overcrowded bookshelf. A scroll tumbled to the floor. "I thought," he said, his voice low and intense, "that if I removed myself from your life, the target on your back would shrink. Instead, you've managed to find even more trouble without my help." "I didn't find trouble," Aurora snapped. "Trouble found me. It always does. And I don't need you swooping in to save me. I've managed just fine on my own." His laugh
was bitter
. "Is that what you call living in your friend's flat, working deli
very
jobs, and
look
ing over your shoulder? Managing?" "At least I'm honest about who and what I am." She tilted her chin up, meeting his gaze directly. "I don't hide behind designer suits and careful masks, pretending I'm something I'm not." Something
flickered
in his heterochromatic eyes – pain, maybe, or anger. His free hand came up to brace against the bookshelf beside her head, caging her in. "You think I'm
pretending? That night
, before e
very
thing went wrong, when I told you how I felt – do you think that was a lie?" Aurora's breath caught in her throat. She could
feel
the heat radiating from his body, could see the pulse beating in his throat. "I think you're
very
good at telling people what they want to hear." "Then you don't know me at all." His voice had dropped to a whisper. "Which is strange, because you're the only person who ever has." Before she could respond, he pushed away from the bookshelf and turned his back to her. The distance felt like a physical ache. "Pack a bag," he said, his voice returning to its usual controlled timbre. "You can't stay here. I have a safe house-" "I'm not going anywhere with you." He turned back, and for a moment, his careful mask slipped. She saw the fear there, the desperation. "Aurora, please. Just once, let someone help you. Let me help you." She
look
ed at him –
really
look
ed at him. The man who had walked away to protect her, who had come back to warn her, who still said her name like a prayer even after e
very
thing that had happened between them. Her fingers brushed unconsciously against the scar on her wrist. "Okay," she said
softly
. "But this time, you don't get to make decisions for me. We do this together, or not at all." The relief that flooded his face made him
look
younger, more vulnerable. "Together," he agreed, extending his hand to her. After a moment's hesitation, she took it.
created_at
"2026-02-17T01:46:46.552014+00:00"
2/17/2026, 1:46:46 AM
model
"anthropic/claude-3.5-sonnet"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
658
moderation_latency
152
generation_time
35492
tokens_prompt
808
tokens_completion
1506
native_tokens_prompt
854
native_tokens_completion
1465
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
0.049074
router
(null)
provider_responses
0
id
"fc5f56ef-b12c-4f1e-a180-5071d2f23ddd"
status
200
is_byok
false
latency
657
endpoint_id
"0e1957b3-205b-49d5-8413-13af3f68676d"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-3.5-sonnet"
api_type
"completions"
id
"gen-1771292770-CKuWmwgZb1mkya4zI4et"
upstream_id
"fc5f56ef-b12c-4f1e-a180-5071d2f23ddd"
total_cost
0.049074
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
91.6667%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
8
adverbTagCount
1
adverbTags
0
"she said softly [softly]"
60.1196%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1003
totalAiIsmAdverbs
4
found
0
adverb
"softly"
count
1
1
adverb
"really"
count
1
2
adverb
"very"
count
2
highlights
0
"softly"
1
"really"
2
"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)
80.0598%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1003
totalAiIsms
2
found
0
word
"flickered"
count
1
1
word
"echoing"
count
1
highlights
0
"flickered"
1
"echoing"
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
1
narrationSentences
58
matches
0
"was bitter"
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
2
hedgeCount
1
narrationSentences
58
filterMatches
0
"feel"
1
"look"
hedgeMatches
0
"began to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
82
matches
0
"pretending? That night"
99.8427%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
38
mean
26.47
std
13.22
cv
0.499
sampleLengths
0
50
1
43
2
33
3
17
4
32
5
25
6
32
7
56
8
11
9
22
10
36
11
29
12
11
13
22
14
31
15
14
16
37
17
12
18
3
19
30
20
6
21
10
22
29
23
35
24
29
25
23
26
33
27
52
28
36
29
25
30
23
31
22
32
6
33
30
34
51
35
23
36
20
37
7
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
58
matches
0
"was concerned"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
0
totalVerbs
120
matches
(empty)
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
627
adjectiveStacks
0
stackExamples
(empty)
adverbCount
23
adverbRatio
0.03668261562998405
lyAdverbCount
9
lyAdverbRatio
0.014354066985645933
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
82
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
82
mean
12.27
std
6.7
cv
0.546
sampleLengths
0
7
1
18
2
8
3
17
4
18
5
10
6
15
7
15
8
18
9
12
10
5
11
26
12
6
13
4
14
21
15
18
16
14
17
12
18
13
19
12
20
19
21
11
22
22
23
20
24
11
25
5
26
6
27
20
28
3
29
11
30
17
31
5
32
10
33
16
34
5
35
11
36
3
37
9
38
18
39
4
40
6
41
8
42
4
43
3
44
6
45
24
46
6
47
10
48
10
49
13
82.9268%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
2
diversityRatio
0.5121951219512195
totalSentences
82
uniqueOpeners
42
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
8
fancyCount
6
fancyTags
0
"she said, proud of how steady her voice remained (say, remain)"
1
"Lucien said, reaching down to scratch behind Ptolemy's ears (say, reach scratch)"
2
"Aurora snapped (snap)"
3
"he said, his voice returning to its usual controlled timbre (say, return)"
4
"she said softly (say softly)"
5
"he agreed, extending his hand to her (agree, extend)"
89.0950%