NC Bench
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Run: 2026-02-17-01KHMQN1N6M3KYZ7KVHNJ3N0KP
Run Details
Model:
Claude Opus 4.5
Test:
Bad Writing Habits
Scenario:
Literary fiction: old friends reunite
Duration:
1m 6s
Cost:
$0.084570
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="4413" name="Silas Blackwood" aliases="Silas, Si, the Spymaster" pronouns="he/him" species="Human" storyRole="Mentor"> <eyeColor>hazel</eyeColor> <hair>grey-streaked auburn</hair> <height>6'1"</height> <age>58</age> <beard>neatly trimmed, matching his grey-streaked auburn hair</beard> <limp>slight limp in his left leg from an old knee injury</limp> <signetRing>silver signet ring, always worn on his right hand</signetRing> <description>Silas is a retired intelligence operative turned bar owner. He carries himself with quiet authority.</description> <backstory>Former MI6 field agent who retired after a botched operation in Prague left him with a permanent knee injury. He opened "The Raven's Nest" bar in Soho as a front for his network of contacts.</backstory> </character> <location id="854" name="The Raven's Nest" aliases="the Nest, Raven, Silas' bar" realm="Earth"> <signColor>distinctive green neon sign above the entrance</signColor> <secretRoom>hidden back room accessible through a bookshelf, used for clandestine meetings</secretRoom> <description>A dimly lit bar in Soho, London. The walls are covered with old maps and black-and-white photographs.</description> </location> </codex> Write a fully fleshed out scene of at least 1000 words in the literary fiction genre. Two old friends who haven't seen each other in years run into each other unexpectedly at a bar. One of them has changed significantly. Through their conversation and the tension between who they were and who they've become, reveal the weight of time and unspoken regret. 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 green neon glow of The Raven's Nest sign cut through the February drizzle, casting sickly light across the wet pavement. Rory pushed through the door with her shoulder, shaking rain from her black hair, and nearly collided with a man coming out. "Christ, sorry—" she started, stepping back. The man looked up from adjusting his collar, and the apology died in her throat.
Marcus
Chen
stood before her, but not the
Marcus
Chen
she remembered. The boy who'd spent three years sitting behind her in secondary school, who'd lent her his notes before e
very
exam and never once asked for them back, who'd cried openly at his grandmother's funeral while e
very
one else stood stone-faced—that boy had been soft around the edges, perpetually rumpled, with ink stains on his fingers and a laugh that came too easily. This man wore a charcoal overcoat that cost more than her monthly rent. His hair
was cropped
close, severe. The softness had
been carved
away, leaving angles and planes that seemed designed to deflect rather than welcome. "Rory?" His voice hadn't changed. That was the worst part. "
Marcus
." She managed his name, though her tongue felt clumsy around it. "I didn't—what are you doing in London?" "I live here now. Have done for three years." He glanced past her at the rain, then back. "You look... different." She laughed, the sound coming out sharper than intended. "Different good or different bad?" He didn't answer. Instead, he gestured toward the interior of the bar. "I was just leaving, but—do you have time? For a drink?" The question hung between them, loaded with the
weight
of all the years they hadn't spoken. She should say no. She had an early shift at the Golden Empress tomorrow, and Yu-Fei didn't tolerate tardiness. But something in his face—a
flicker
of the old
Marcus
, maybe, drowning beneath the polish—made her nod. "One drink." They found a table near the back, beneath a faded map of Eastern Europe that had always reminded Rory of the geography lectures she'd slept through at Cardiff. Silas caught her eye from behind the bar, his hazel gaze sharp despite the dim light. She gave him a small nod—I'm fine, don't worry—and he turned back to polishing glasses, though she noticed he kept their table in his peripheral vision. "So,"
Marcus
said, settling into his chair with the practiced ease of someone who'd learned to be comfortable anywhere. "Cardiff to London. What brought you here?" "Change of scenery." The lie came easily. She'd told it enough times that it had worn smooth. "What about you? Last I heard, you were doing postgraduate work in biochemistry. Your mum was so proud she sent my parents a card." Something
flickered
across his face—there and gone, quick as a shutter. "That didn't work out." "What do you do now?" "Consulting." He flagged down a server. "Financial consulting. It's boring, but it pays." Rory studied him as he ordered—single malt, neat, the kind of specific request that came from drinking in places where the options mattered. The
Marcus
she'd known had drunk cheap lager at house parties and been grateful for it. "Your parents must be pleased," she said when the server left. "The money, I mean. They always wanted you to be practical." "My parents are dead." The words landed like stones in still water. Rory's hand jerked, nearly knocking over the candle between them. "
Marcus
, I—God, I'm sorry. I didn't know." "Why would you?" There was no accusation in his voice, which somehow made it worse. "Car accident. Four years ago. You'd already left Cardiff by then." Four years. She'd been in London for just over three, which meant— "I left six months after," he said, reading her calculation. "There wasn't any reason to stay." She thought of her own parents, safe in their Cardiff house with its creaky stairs and perpetually overgrown garden. She hadn't called them in two weeks. Three, maybe. "I'm sorry," she said again, knowing it wasn't enough, would never be enough. Their drinks arrived.
Marcus
lifted his glass, swirled the amber liquid, set it down without drinking. His fingers—once perpetually stained with ink—were clean now, manicured. The nails trimmed to precise uniformity. "Do you remember the summer before sixth form?" he asked. "When we found that injured fox in the park?" Rory blinked at the shift. "You tried to pick it up and it bit you." "And you fashioned a splint out of ice lolly sticks while I cried." A ghost of a smile crossed his face. "You were always the practical one." "I was terrified. I just hid it better." "That's what I mean." He finally took a sip of his whisky. "You could
feel
e
very
thing and still function. I never
learned that trick
." The candlelight caught the silver
glint
of something at his wrist—a watch, expensive, the kind that told you what time it was in three different countries. Rory's fingers went instinctively to her own wrist, to the small crescent scar that curved like a pale moon against her skin. "
Marcus
," she started, then stopped. What could she say? You seem unhappy
seemed to
o presumptuous. What
happened to
you felt cruel. I missed you was true but somehow not the point. He
seemed to
understand anyway. "I know. I'm not—" He set the glass down, hard enough that the liquid sloshed. "I don't know who I am anymore, Rory. That's the honest answer. After my parents died, I just... I made choices. One after another. Each one seemed reasonable at the time. And now I'm here, in a bar in Soho, and I can't remember the last time I talked to someone who knew me before." Before. The word carried its own gravity. Before the money. Before the overcoat. Before whatever had scraped away the softness and left this polished, hollow thing in its place. "You cried at your grandmother's funeral," Rory said quietly. "E
very
one else just stood there, but you cried. I remember thinking how brave that was." He looked at her
sharply
. "Brave?" "To
feel
something in public. To not pretend." A long moment passed. From the bar, she heard Silas's low laugh as he chatted with a regular—the comforting sound of the life she'd built here, small and strange as it was. "I can't remember the last time I cried,"
Marcus
said finally. "Isn't that odd? My parents died and I didn't cry at their funeral. I just stood there, thinking about the paperwork." "Grief is strange. It comes out sideways." "Does it?" He turned the glass in his hands, round and round. "Or does it just get buried so deep that it stops existing? I tell myself I've
processed
it. Moved on. But sometimes I wake up at three in the morning and I can't—" He stopped. Swallowed. "I can't remember what my mother's voice sounded like." Rory reached across the table before she could think better of it. Her fingers touched his wrist, just below that expensive watch. He went
very
still. "
Marcus
." "I should go." He pulled away, the shutters coming down. "I have a meeting early tomorrow. Some clients from—it doesn't matter. I shouldn't have—" "Sit down." Her voice surprised them both. It was the voice she used when customers got rowdy, when she needed to defuse a situation before it escalated. Cool and certain, even when she felt neither.
Marcus
sat. "You don't have to tell me anything," she said. "We don't know each other anymore—you're right about that. But you don't have to run, either." He stared at her for a long moment. Then,
slowly
, something cracked behind his eyes. "I dreamed about her last night. My mother. She was making dumplings—she always made dumplings when I was stressed about exams—and I walked into the kitchen and she turned around and she didn't have a face." His voice didn't waver. That was what undid her. The steady, matter-of-fact deli
very
, as if he
were reading
a quarterly report. "The grief counselor said it was normal. That faces fade. But I keep thinking—if I'd visited more. Called more. Maybe I'd remember." "Maybe you would," Rory agreed. "Or maybe you'd
feel
guilty about something else. That's how it works, isn't it? We find ways to blame ourselves for things we couldn't control." He looked at her then—
really
looked, for the first time since they'd sat down. "What couldn't you control?" The question struck closer to bone than she'd expected. She thought of Evan—his hands, his voice, the way he'd made her
feel
small in inches until she'd had nothing left. She thought of Cardiff, the city she'd loved, now poisoned by memory. "A lot," she said. "But I'm working on believing it wasn't my fault." Something passed between them—recognition, maybe. The
understanding that they'd
both
been broken
and rebuilt, just in different ways. "I should have called you,"
Marcus
said quietly. "When I moved here. I knew you were in London—your mum told my mum, before—" He stopped. Recalibrated. "I knew you were here. But I didn't know how to explain who I'd become." "Neither did I." He laughed at that—a real laugh, rusty and raw, nothing like the polished chuckle he'd offered earlier. "What a pair we are." "Functional disasters, the both of us." The rain had picked up outside, drumming against the windows of The Raven's Nest. Inside, the bar was warm and dim, full of murmured conversations and the clink of glasses. Silas had turned on the old record player in the corner, and something jazz drifted through the smoke-
tinged
air. "I come here sometimes,"
Marcus
admitted. "To this bar. It reminds me of somewhere I went once in Prague. Before e
very
thing." "I live upstairs." His eyebrows rose. "Seriously?" "It's a long story involving a Chinese restaurant and a former spy." She smiled despite herself. "But the rent's cheap and my landlord doesn't ask questions." "A former spy." "Silas. The one behind the bar. He used to be MI6, or so the rumors go."
Marcus
glanced toward the bar, where Silas
was drying
glasses with the
methodical
care of a man who'd once dismantled bombs. His silver signet ring caught the light as he worked. "You've built a life here,"
Marcus
observed. "A strange one, but a life." "I'm working on it." Rory finished her drink. "You could too. Build something. It doesn't have to be the life you planned." He considered this, turning it over like one of his consultancy problems. "Do you
really
believe that?" "I have to. The alternative is giving up." Outside, a car splashed through a puddle, sending reflected light
dancing
across the windows. For a moment,
Marcus
looked seventeen again—uncertain, open, still capable of tears. "Could I—" He hesitated. "Could I call you sometime? Not to—I don't mean—" "To talk," Rory finished. "Yes. You could." She pulled a napkin toward her, borrowed a pen from the candle holder, and wrote her number in the same cramped handwriting she'd used to pass notes in secondary school.
Marcus
took it
carefully
, as if it might crumble. "Thank you," he said. "For not pretending you didn't see me." "Thank you for not pretending you were fine." He laughed again, softer this time. Then he stood, buttoned his expensive coat, and touched her shoulder once—brief and tentative, the ghost of the boy he'd been. "Goodnight, Rory." "Goodnight,
Marcus
." She watched him walk through the bar, past Silas's knowing gaze, out into the rain. The green neon sign illuminated him briefly as he passed—a flash of color against grey—and then he
was gone
. Silas appeared at her elbow, whisky bottle in hand. "Refill?" "Please." He poured. His slight limp was more pronounced tonight—the rain always aggravated his old knee injury. "Old friend?" "From another life." "Those are the complicated ones." He set the bottle down, his silver signet ring clicking against the glass. "The ones who knew us before we knew ourselves." Rory wrapped her hands around the fresh drink, letting the warmth seep into her fingers. Through the rain-streaked window, she could just make out the blurred lights of Soho, all that life carrying on despite the weather. "He lost his parents," she said quietly. "And somewhere along the way, he lost himself." "And you? Did you find yourself?" She thought about it—
really
thought, the way she rarely let herself. "I'm looking. That's something, isn't it?" Silas smiled, the expression softening his weathered face. "That's e
very
thing, girl. That's the whole bloody game." He moved away to
tend to
other customers, leaving her alone with her thoughts and her whisky and the
weight
of all the years she and
Marcus
had lived apart, becoming strangers who'd once been something like friends. The rain kept falling. The jazz kept playing. And somewhere in the London night, a man in an expensive coat
was walking
home with her phone number in his pocket, trying to remember what his mother's voice had sounded like.
created_at
"2026-02-17T02:43:50.396728+00:00"
2/17/2026, 2:43:50 AM
model
"anthropic/claude-4.5-opus-20251124"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1655
moderation_latency
226
generation_time
66136
tokens_prompt
867
tokens_completion
3359
native_tokens_prompt
914
native_tokens_completion
3200
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
0.08457
router
(null)
provider_responses
0
id
"1ddf8637-b83b-462f-8445-88a580e9807e"
status
200
is_byok
false
latency
1654
endpoint_id
"de32581c-2e11-4f54-8d29-e8a6e19d3038"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-opus-20251124"
api_type
"completions"
id
"gen-1771296163-cESnkWjN1xwTQow27ipi"
upstream_id
"1ddf8637-b83b-462f-8445-88a580e9807e"
total_cost
0.08457
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
3.7037%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
18
adverbTagCount
7
adverbTags
0
"Marcus said, settling into his chair with the practiced ease of someone who'd learned to be comfortable anywhere [anywhere]"
1
"she said again, knowing it wasn't enough, would never be enough [again]"
2
"she started, then stopped [then]"
3
"Rory said quietly [quietly]"
4
"Marcus said finally [finally]"
5
"Marcus said quietly [quietly]"
6
"she said quietly [quietly]"
68.0219%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
2189
totalAiIsmAdverbs
7
found
0
adverb
"carefully"
count
1
1
adverb
"sharply"
count
1
2
adverb
"slowly"
count
1
3
adverb
"really"
count
3
4
adverb
"very"
count
1
highlights
0
"carefully"
1
"sharply"
2
"slowly"
3
"really"
4
"very"
60.0000%
AI-ism character names
Target: 0 AI-default names (16 tracked, −20% each)
codexExemptions
0
"Blackwood"
found
0
"Chen"
1
"Marcus"
100.0000%
AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
58.8853%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
2189
totalAiIsms
9
found
0
word
"tinged"
count
1
1
word
"flickered"
count
1
2
word
"flicker"
count
1
3
word
"glint"
count
1
4
word
"methodical"
count
1
5
word
"processed"
count
1
6
word
"weight"
count
2
7
word
"dancing"
count
1
highlights
0
"tinged"
1
"flickered"
2
"flicker"
3
"glint"
4
"methodical"
5
"processed"
6
"weight"
7
"dancing"
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
132
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
4
narrationSentences
132
filterMatches
0
"feel"
hedgeMatches
0
"seemed to"
1
"happened to"
2
"tend to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
3
totalSentences
197
matches
0
"faced-that boy"
1
"learned that trick"
2
"understanding that they'd"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
100
mean
21.53
std
15.86
cv
0.737
sampleLengths
0
43
1
6
2
15
3
73
4
37
5
10
6
19
7
21
8
14
9
23
10
52
11
2
12
70
13
26
14
41
15
15
16
5
17
13
18
39
19
22
20
4
21
18
22
7
23
26
24
12
25
16
26
28
27
13
28
31
29
19
30
15
31
27
32
8
33
24
34
48
35
31
36
75
37
29
38
24
39
6
40
8
41
32
42
32
43
7
44
57
45
26
46
1
47
24
48
2
49
33
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
4
totalSentences
132
matches
0
"was cropped"
1
"been carved"
2
"been broken"
3
"was gone"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
3
totalVerbs
257
matches
0
"were reading"
1
"was drying"
2
"was walking"
90.7514%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1404
adjectiveStacks
0
stackExamples
(empty)
adverbCount
71
adverbRatio
0.05056980056980057
lyAdverbCount
25
lyAdverbRatio
0.017806267806267807
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
197
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
197
mean
10.93
std
8.71
cv
0.797
sampleLengths
0
21
1
22
2
6
3
15
4
12
5
61
6
13
7
6
8
18
9
5
10
5
11
12
12
7
13
18
14
3
15
9
16
5
17
3
18
9
19
11
20
16
21
4
22
15
23
17
24
2
25
28
26
16
27
26
28
19
29
7
30
7
31
10
32
24
33
11
34
4
35
5
36
6
37
7
38
23
39
16
40
11
41
11
42
4
43
8
44
10
45
7
46
15
47
11
48
2
49
10
51.7766%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
13
diversityRatio
0.350253807106599
totalSentences
197
uniqueOpeners
69
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
18
fancyCount
14
fancyTags
0
"started (start)"
1
"Marcus said, settling into his chair with the practiced ease of someone who'd learned to be comfortable anywhere (say, settle practice learn be)"
2
"she said when the server left (say leave)"
3
"he said, reading her calculation (say, read)"
4
"she said again, knowing it wasn't enough, would never be enough (say again, does be not does not never be)"
5
"she started, then stopped (start, stop)"
6
"Rory said quietly (say quietly)"
7
"Marcus said finally (say finally)"
8
"Rory agreed (agree)"
9
"Marcus said quietly (say quietly)"
10
"Marcus admitted (admit)"
11
"Marcus observed (observe)"
12
"Rory finished (finish)"
13
"she said quietly (say quietly)"
78.4199%