NC Bench
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Run: 2026-02-17-01KHMR1HSM2GRKPFS9YEHTX2M5
Run Details
Model:
Claude Haiku 4.5
Test:
Bad Writing Habits
Scenario:
Literary fiction: old friends reunite
Duration:
21.3s
Cost:
$0.010609
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 Raven's Nest smelled like it always had—whiskey, leather, and the faint ghost of cigarette smoke from before the smoking ban. Rory pushed through the heavy oak door, rain clinging to her deli
very
jacket. She'd meant to drop off Yu-Fei's order to Silas and vanish back into the Soho night. Quick transaction. In and out. But the bar was fuller than usual for a Thursday, and she found herself pausing near the entrance to scan the crowd. That's when she saw him. He sat at a corner table, back to the wall, nursing a tumbler of something amber. The posture was familiar—that careful watchfulness she'd forgotten she remembered. But the face was different. Harder. Where there had been an easy smile and restless energy, there was now something carved and still. His dark hair, once perpetually mussed, was expensively cut and disciplined. A
silk
tie caught the bar's low light. Even his hands looked different—manicured, marked with a heavy gold wedding band she'd never seen before. James Whitmore. Her James. Except he wasn't. She almost left. Her fingers tightened on the thermal deli
very
bag, and she turned toward the bar to make the handoff with Silas. But then James looked up. Their eyes met for a fraction of a second too long. Recognition
flickered
across his face, followed by something that might have been pain or panic—she couldn't read it anymore. "Rory?" She closed her eyes for one breath. Kept moving toward the bar. "Jesus Christ. Rory!" He
was standing
now. She could feel him standing even though she didn't turn around. The bar had gone on around them,
unaware that anything
had changed. Silas appeared behind the bar, hazel eyes sharp as knives, reading the situation in the way he always did. "Got a deli
very
for you," Rory said to him, keeping her voice light. Professional. "The usual—crispy noodles, beef in black bean sauce, egg fried rice." "Rory." James had come up beside her. She could smell him—expensive cologne, nothing like the cheap drugstore stuff he'd worn before. "Bloody hell. How long has it been?" She finally turned. Five years, nine months, and approximately two weeks. But she said, "A while." He laughed, a sound with sharp edges. "A while. That's one way to put it." He looked her up and down, taking in the yellow deli
very
jacket with "Golden Empress" embroidered on the back, the rain-dark hair, the same blue eyes she'd had at twenty. "You look—you haven't changed at all. You look exactly the same." It wasn't a compliment. Silas watched this exchange with the stillness of a retired intelligence operative, which was what he was. Rory took the opportunity to set the deli
very
bag on the bar with deliberate care, double-checking the order slip against the receipt. "Three forty-five. You can pay me next week." "Come on," James said. He gestured to his table, pulling out a chair that hadn't been empty moments before. "Have a drink. Just one. I can't believe—" He trailed off, running his hand through his perfect hair. "I can't believe it's you." "I'm working." "You're delivering food in the rain on a Thursday night. Come have one drink with an old friend." The way he said 'old friend' made something twist in her chest. "I'm in London for two weeks on business. I keep thinking about—" He stopped. Started again. "Just one drink." Silas
was studying
them both with an intensity that made Rory acutely aware of how transparent they probably were. She'd lived above his bar for three years. He knew about Evan, about her fled Pre-Law ambitions, about her
carefully
constructed small life. He probably knew about James without her ever mentioning him. She should leave. She should smile politely and exit and never come back on Thursdays. "One drink," she heard herself say. They settled at his table. James ordered her a Guinness without asking—she'd switched to red wine years ago, but she didn't correct him. He
seemed to
need to
believe that something
about her hadn't changed. The drink arrived. She wrapped her hands around the cold pint glass. "So," he said. "Deli
very
driver." "Deli
very
person, actually. And it's part-time. Flexible." She took a sip. It was colder and more bitter than she remembered wanting it. "What about you? Let me guess—finance? You always said you'd end up in the City." "Private equity." He twisted his wedding band around his finger. "Partner now. We're doing
very
well. You'd probably hate it—it's all spreadsheets and conference calls and golf with men twice your age who think they're hilarious." She wanted to say 'sounds perfect for you,' but that was unkind and they were trying. Instead, she said, "Congratulations." "Thank you." He smiled, and for a moment she saw the boy who'd kissed her against the library wall at uni, the one who'd said he'd never leave Cardiff, never leave her. "That's not
very
'you,' though. You'd usually call me a sellout." "Maybe I've changed." He flinched. Actually flinched. "Have you?" The question hung between them like something with
weight
. Outside, rain hammered the window. Inside, the bar hummed with the low murmur of other people's conversations. Silas moved through the space with his characteristic limp, attending to other tables, careful not to watch too obviously. "I didn't know," Rory said quietly, "how to stay the same person I was. That girl had plans that fell apart. She had a boyfriend who—" She stopped. Started again. "She had baggage. A lot of it." "You had me. You had us." "I did. And you chose the other thing. The spreadsheets. The golf." James looked at his hands. "I didn't know how to be with someone like you and also be happy. That sounds terrible, and I know it is. But you were always so angry. At your family, at the world, at me for not being angry enough. You burned so bright that it was exhausting." He looked up. "I'm sorry. I know that's a terrible thing to say." The honest cruelty of it sat between them like a third person at the table. Rory
found that she
wasn't angry. That surprised her. "I wasn't angry at you," she said. "I was angry at myself for trying to fit into a life that wasn't mine. And I took it out on you. I'm sorry for that." They drank in silence for a moment. "Are you happy?" he asked. "With the deli
very
driving and the—" He gestured vaguely. "All of this?" She thought about Silas, about the small network of people she'd built in this city, about having space to breathe that wasn't measured in someone else's expectations. She thought about Evan, and how she'd learned to recognize the warning signs before they became scars. She thought about waking up without dread. "Yeah," she said. "I think I am." He nodded
slowly
, as if accepting a verdict. His wedding band caught the light again. "I'm glad." He finished his drink. "I think I always knew you'd be okay. You were always tougher than the rest of us." "Not tougher. Just willing to fall apart differently." He smiled at that—
really
smiled, with something like the gentleness she'd loved once. "I hope you're happy too," she added. "I
really
do." "I am," he said. "Most days." He set down his glass. "I should go. My wife's waiting. But Rory—" He hesitated. "I'm glad I ran into you. I think I needed to." She nodded. They stood. He hesitated, then pulled her into a brief, careful hug that smelled like expensive cologne and the ghost of something they used to be. Then he left, disappearing into the rainy London night. Silas appeared with a fresh drink—red wine, this time. He set it down without comment and walked away. Rory sat with both glasses in front of her, untouched, watching the door through which James had gone. After a while, she picked up the red wine and drank.
created_at
"2026-02-17T02:49:54.842715+00:00"
2/17/2026, 2:49:54 AM
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
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streamed
true
cancelled
false
latency
1055
moderation_latency
226
generation_time
21025
tokens_prompt
867
tokens_completion
2007
native_tokens_prompt
914
native_tokens_completion
1939
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
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num_input_audio_prompt
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num_media_completion
0
num_search_results
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origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.010609
router
(null)
provider_responses
0
id
"5e76778d-81b9-498d-84ac-19f23ff1e786"
status
200
is_byok
false
latency
1054
endpoint_id
"d000261c-5aeb-47d1-ac87-ad64dbe1cdb6"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
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"gen-1771296573-5fgZwEnwzxRK8IAue9pp"
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provider_name
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Evaluation details
Result
Evaluator
Details
Meta Data
82.0513%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
13
adverbTagCount
2
adverbTags
0
"Instead, she said, [Instead,]"
1
"Rory said quietly, She stopped [quietly]"
55.2239%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1340
totalAiIsmAdverbs
6
found
0
adverb
"carefully"
count
1
1
adverb
"slowly"
count
1
2
adverb
"really"
count
2
3
adverb
"very"
count
2
highlights
0
"carefully"
1
"slowly"
2
"really"
3
"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)
77.6119%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1340
totalAiIsms
3
found
0
word
"flickered"
count
1
1
word
"silk"
count
1
2
word
"weight"
count
1
highlights
0
"flickered"
1
"silk"
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
103
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
1
narrationSentences
103
filterMatches
(empty)
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
3
totalSentences
129
matches
0
"unaware that anything"
1
"believe that something"
2
"found that she"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
49
mean
27
std
20.5
cv
0.759
sampleLengths
0
77
1
5
2
84
3
7
4
28
5
30
6
1
7
12
8
3
9
46
10
25
11
28
12
16
13
56
14
4
15
39
16
8
17
42
18
2
19
49
20
52
21
15
22
6
23
47
24
5
25
37
26
36
27
20
28
43
29
3
30
6
31
45
32
37
33
6
34
12
35
67
36
24
37
33
38
7
39
17
40
51
41
7
42
38
43
8
44
23
45
32
46
37
47
36
48
11
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
0
totalSentences
103
matches
(empty)
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
2
totalVerbs
183
matches
0
"was standing"
1
"was studying"
98.6581%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
939
adjectiveStacks
0
stackExamples
(empty)
adverbCount
39
adverbRatio
0.04153354632587859
lyAdverbCount
15
lyAdverbRatio
0.01597444089456869
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
129
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
129
mean
10.26
std
8.19
cv
0.799
sampleLengths
0
21
1
13
2
16
3
2
4
3
5
22
6
5
7
16
8
10
9
5
10
1
11
17
12
11
13
8
14
16
15
2
16
2
17
3
18
3
19
20
20
5
21
11
22
19
23
1
24
7
25
5
26
3
27
4
28
11
29
12
30
19
31
13
32
1
33
11
34
7
35
14
36
7
37
3
38
8
39
5
40
7
41
38
42
11
43
4
44
17
45
22
46
8
47
4
48
15
49
18
60.4651%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
12
diversityRatio
0.4186046511627907
totalSentences
129
uniqueOpeners
54
98.0769%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
13
fancyCount
4
fancyTags
0
"Rory said to him, keeping her voice light (say keep)"
1
"she heard herself say (heard herself say)"
2
"Rory said quietly, She stopped (say quietly, stop)"
3
"she added (add)"
92.4757%