NC Bench
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Run: 2026-02-17-01KHMQVQ13RZCWR91PB4GRP2DW
Run Details
Model:
Claude Opus 4.6
Test:
Bad Writing Habits
Scenario:
Literary fiction: old friends reunite
Duration:
1m 10s
Cost:
$0.079850
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 sign cast its sickly light across the wet pavement, turning the rain into something venomous. Rory shouldered through the door of The Raven's Nest with her deli
very
bag still slung across her back, the thermal pouch empty now, smelling of garlic and black bean sauce. She
was supposed
to go straight upstairs—up the narrow staircase at the back, through the door with the sticky lock, into the flat where her shoes lived in a pile by the radiator and her law textbooks gathered dust on a shelf she never looked at. But the cold had gotten into her bones during that last run to Covent Garden, and she wanted something warm that wasn't tea. The bar was quiet for a Thursday. A few regulars hunched over their drinks in the amber gloom, faces half-lit by the wall sconces that Silas kept
deliberately
dim. He said it was atmosphere. Rory suspected it was cheaper than replacing the bulbs. She dropped onto a stool at the far end of the bar, peeled off her wet jacket, and caught Silas's eye. He limped over, polishing a glass with a cloth that had seen better decades. "You look like a drowned thing." "Charming. Can I get a whiskey? Irish, if you've got it." "I've always got it." He reached for the Jameson without looking, the silver signet ring on his right hand catching the light. "Rough night?" "Just wet." She wrapped both hands around the glass when he set it down, letting the warmth seep into her fingers. Behind Silas, the old maps on the wall
seemed to
ripple in the low light—trade routes, coastlines, borders that no longer existed. She'd asked him once why he kept them up. He'd said something about reminding himself that nothing stays where you put it. She was halfway through the whiskey when the door opened behind her. She didn't turn around. People came and went from The Raven's Nest all evening; it was the nature of the place. But she heard the
footsteps
pause—not the hesitation of someone checking their phone or shaking off an umbrella, but the full-body arrest of someone who has seen something they weren't prepared for. "Rory?" The voice found her like a hand reaching through years of silence to grip her by the back of the neck. She knew it before she turned. Knew it the way she knew her own middle name or the particular creak of the third stair in her parents' house in Cardiff. But when she swiveled on the stool, the face attached to the voice was wrong. Not wrong. Changed. Niamh Gallagher stood just inside the door, rain-damp and wide-eyed, looking like she'd walked into the wrong life and found the right person in it. She was thinner than Rory remembered—not thin in the way of someone who ran or dieted, but thin in the way of someone who'd been
slowly
pared down by something invisible. Her red hair, which had once fallen in chaotic curls past her shoulders,
was cropped
close to her skull, and the bones of her face stood out with a severity that made her green eyes enormous. She wore an expensive coat—camel-colored, probably
cashmere—that hung
on her like it had
been bought
for a different body. A body she'd since vacated. "Niamh." Rory said the name like a question, even though it wasn't one. She set her glass down. "Jesus. Niamh." "I can't believe—" Niamh started, then stopped, pressing her lips together in that way she always had when she
was trying
not to cry. She crossed the bar in five quick steps and pulled Rory into a hug that was all angles and sharpness, her collarbone a blade against Rory's shoulder. She smelled like expensive perfume and, underneath it, something antiseptic. Rory held on for a beat longer than she meant to, then pulled back and looked at her. Really looked. Three years. Three years since the last time they'd been in the same room, at Eva's birthday party in that terrible karaoke bar in Brixton. Niamh had been
luminous
that night, flushed with wine and something else—a wildness that made people orbit her without understanding why. She'd sung "Dreams" by Fleetwood Mac with her eyes closed and her shoes off, and Rory had watched from a corner booth and thought, not for the first time, that Niamh Gallagher was the kind of person who burned through life so brightly that she'd leave scorch marks on e
very
one around her. The woman standing in front of her now was not
luminous
. She was translucent. "Sit down," Rory said. "What are you drinking?" "I shouldn't—" Niamh glanced toward the door, then back at Rory, and something in her expression crumbled. "Gin and tonic. Please." Silas materialized with the drink before Rory even had to ask. He
had that quality
—an instinct for when a conversation needed lubrication and when it needed privacy. He set the gin down, gave Rory a look that said nothing and e
very
thing, and limped toward the far end of the bar where a man in a tweed jacket
was trying
to get his attention. Niamh slid onto the stool beside Rory and wrapped her fingers around the glass the same way Rory had wrapped hers around the whiskey. Mirror gestures. Old habits. They used to
joke that they'd
been separated
at birth—Rory with her black hair and blue eyes, Niamh all red and green, like two halves of something Celtic and half-feral. They'd met at fourteen, at a school debating competition in Dublin where Rory had argued against the death penalty with a ferocity that startled the judges and Niamh had heckled her from the third row until they were both thrown out. That felt like someone else's story now. "Three years," Rory said. "I know." Niamh took a sip of her gin. Her hand
trembled
, and she set the glass down
quickly
, as if hoping Rory hadn't noticed. "I kept meaning to call. I'd get as far as pulling up your number, and then I'd just—" She waved a hand vaguely. "I don't know. I couldn't figure out what to say." "You could have said anything. You could have said hello." "Hello is the hardest word, Rory. E
very
one thinks it's goodbye, but it's not." Rory turned the crescent-shaped scar on her left wrist without thinking, the pad of her right thumb tracing the familiar ridge. A nervous habit. "What happened to you?" Niamh's smile was a brittle thing, all surface and no warmth. "How much time do you have?" "I live upstairs." That surprised a real laugh out of her—short, startled, the ghost of the laugh Rory remembered. "Of course you do. You always did end up in the strangest places." "Says the woman who once lived in a converted church in Galway." "That was romantic. This is—" Niamh looked around The Raven's Nest, taking in the maps, the photographs, the shelves of books along the back wall that Rory knew concealed the door to Silas's hidden room. "This is actually wonderful, in a haunted sort of way. Who's the man behind the bar?" "Silas. He's my landlord. And my boss, sort of. It's complicated." "E
very
thing with you is complicated." Niamh said it
gently
, but there was a
weight
under the words, a gravity that hadn't been there before. They sat in silence for a moment. On the wall behind them, a black-and-white photograph of a woman in a headscarf stared out from what looked like a bombed-out street in some Eastern European city. Rory had studied it a hundred times. She still didn't know who the woman was or why Silas kept her picture up. "I got married," Niamh said. She said it the way someone might say I
got diagnosed
. Flat. Clinical. "I heard. Eva told me. Patrick something?" "Patrick Holt. Barrister. Your father would have loved him." The bitterness in her voice was sharp enough to cut. "E
very
one's father loved Patrick. He was
very
lovable, in public." Rory felt something cold settle in her stomach. She
knew that cadence
. She knew the particular way a woman's voice went flat and careful when she
was describing
a man who had shown her one face and the world another. She knew it because she'd heard it in her own voice, once, when she'd told Eva about Evan—the careful, almost clinical recitation of facts, as if naming the thing
precisely
enough might strip it of its power. "Niamh." "Don't." Niamh held up a hand. "Don't do the voice. I can handle anything except the voice." "What voice?" "The one where you sound like you understand. Because I know you do, and that makes it worse." The rain picked up outside, drumming against the windows. Somewhere in the back, Silas dropped something—a glass, maybe—and swore
softly
. The bar's radiator ticked and hissed in the corner like a living thing. "I left him," Niamh said after a while. "Seven months ago. It took me two years to leave and seven months to start feeling like I'd actually done it. I sold the house in Kensington. I've been staying in hotels, mostly. I was walking past this bar and I thought—" She stopped. "I don't know what I
thought. That it
looked warm." "It is warm. Silas keeps the radiators on full blast. He says cold people don't drink enough." Niamh smiled again, and this time it was closer to real. "He sounds like my grandmother." Rory turned on her stool so she
was facing
Niamh fully. Up close, she could see the faint discoloration under her left eye—not a bruise, not anymore, but the memory of one, the way skin holds onto damage long after the color fades. She could see the new sharpness of Niamh's jaw, the tendons standing out on the back of her hands. She could
see that the
expensive coat had
been bought
in better times and kept out of loyalty or stubbornness or the simple inability to throw anything else away. "You could have called me," Rory said again, softer this time. "Any time. Two in the morning. I would have picked up." "I know you would have. That's exactly why I didn't." "That doesn't make any sense." "It makes perfect sense, and you know it." Niamh turned the gin glass in a slow circle on the bar top. "You got away from yours. You rebuilt e
very
thing. Eva told me—new city, new life, the whole thing. I couldn't call you in the middle of the night and drag you back into that. You deserved to be free of it." "That's not how friendship works." "No. It's how shame works." The word landed between them like a stone dropped into still water. Rory watched the ripples move through Niamh's expression—the tightening around her mouth, the way her eyes went bright and glassy, the fierce clench of her jaw as she willed herself not to break. Rory reached out and covered Niamh's hand with her own. She didn't say anything. There was nothing to
say that Niamh
didn't already know, nothing that wouldn't sound like platitude or pity. So she just held on, the way Niamh had held onto her in that Brixton karaoke bar three years ago, when Rory had stepped outside for air and found herself shaking against the wall, and Niamh had appeared beside her and simply taken her hand without asking why. They sat like that for a long time. The bar murmured around them. Silas moved through his quiet circuits, refilling glasses, wiping surfaces, never once glancing their way with anything that could be mistaken for curiosity. He knew, Rory thought, the geometry of private pain—how it occupied space, how it demanded room. Finally, Niamh turned her hand over and squeezed Rory's fingers. "I don't have anywhere to go tonight," she said. It wasn't a request. It was a confession. "Yes you do," Rory said. "You're going upstairs. The couch is terrible, but the lock works, and I'll make you toast in the morning." Niamh closed her eyes. When she opened them, they were wet, and she didn't bother to pretend otherwise. "Hello, Rory," she said quietly. "Hello, Niamh." Outside, the green neon sign buzzed and
flickered
against the rain, casting its strange light on the pavement where two sets of footprints were already dissolving.
created_at
"2026-02-17T02:47:31.909353+00:00"
2/17/2026, 2:47:31 AM
model
"anthropic/claude-4.6-opus-20260205"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1697
moderation_latency
150
generation_time
69425
tokens_prompt
867
tokens_completion
3023
native_tokens_prompt
915
native_tokens_completion
3011
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
0.07985
router
(null)
provider_responses
0
id
"332b0857-467d-496a-b7e2-62b6c1dcc361"
status
200
is_byok
false
latency
1695
endpoint_id
"a8708fb9-08ea-43bb-a3b1-165c87ef09df"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.6-opus-20260205"
api_type
"completions"
id
"gen-1771296381-TXwk6l215jNlvNsW1Wx9"
upstream_id
"332b0857-467d-496a-b7e2-62b6c1dcc361"
total_cost
0.07985
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
72.7273%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
11
adverbTagCount
2
adverbTags
0
"Rory said again, softer this time [again]"
1
"she said quietly [quietly]"
61.5754%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
2082
totalAiIsmAdverbs
8
found
0
adverb
"deliberately"
count
1
1
adverb
"gently"
count
1
2
adverb
"precisely"
count
1
3
adverb
"quickly"
count
1
4
adverb
"slowly"
count
1
5
adverb
"softly"
count
1
6
adverb
"really"
count
1
7
adverb
"very"
count
1
highlights
0
"deliberately"
1
"gently"
2
"precisely"
3
"quickly"
4
"slowly"
5
"softly"
6
"really"
7
"very"
100.0000%
AI-ism character names
Target: 0 AI-default names (16 tracked, −20% each)
codexExemptions
0
"Blackwood"
found
(empty)
100.0000%
AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
71.1816%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
2082
totalAiIsms
6
found
0
word
"luminous"
count
2
1
word
"flickered"
count
1
2
word
"trembled"
count
1
3
word
"weight"
count
1
4
word
"footsteps"
count
1
highlights
0
"luminous"
1
"flickered"
2
"trembled"
3
"weight"
4
"footsteps"
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
109
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
1
narrationSentences
109
filterMatches
(empty)
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
7
totalSentences
143
matches
0
"cashmere—that hung"
1
"had that quality"
2
"joke that they'd"
3
"knew that cadence"
4
"thought. That it"
5
"see that the"
6
"say that Niamh"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
61
mean
33.69
std
31.41
cv
0.932
sampleLengths
0
117
1
64
2
20
3
11
4
24
5
65
6
65
7
1
8
69
9
116
10
20
11
61
12
118
13
14
14
8
15
21
16
63
17
99
18
7
19
4
20
58
21
10
22
13
23
28
24
17
25
3
26
29
27
12
28
51
29
11
30
24
31
57
32
18
33
7
34
29
35
77
36
1
37
17
38
2
39
18
40
33
41
62
42
17
43
16
44
91
45
22
46
10
47
5
48
61
49
5
96.6361%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
6
totalSentences
109
matches
0
"was supposed"
1
"was cropped"
2
"been bought"
3
"been separated"
4
"got diagnosed"
5
"been bought"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
4
totalVerbs
269
matches
0
"was trying"
1
"was trying"
2
"was describing"
3
"was facing"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1645
adjectiveStacks
0
stackExamples
(empty)
adverbCount
52
adverbRatio
0.031610942249240125
lyAdverbCount
15
lyAdverbRatio
0.00911854103343465
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
143
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
143
mean
14.37
std
11.1
cv
0.772
sampleLengths
0
18
1
30
2
46
3
23
4
7
5
22
6
5
7
9
8
21
9
14
10
6
11
11
12
22
13
2
14
21
15
22
16
9
17
13
18
12
19
4
20
17
21
32
22
1
23
21
24
6
25
24
26
15
27
2
28
1
29
25
30
31
31
36
32
19
33
5
34
13
35
5
36
2
37
24
38
27
39
10
40
18
41
2
42
2
43
23
44
21
45
52
46
11
47
3
48
4
49
4
51.9814%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
14
diversityRatio
0.3706293706293706
totalSentences
143
uniqueOpeners
53
100.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
11
fancyCount
3
fancyTags
0
"started (start)"
1
"Rory said again, softer this time (say again)"
2
"she said quietly (say quietly)"
91.4177%