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Run: 2026-02-17-01KHMR2WGWGWFQ6N876FFDJT4D
Run Details
Model:
Claude Haiku 4.5
Test:
Bad Writing Habits
Scenario:
Thriller: chase through city streets
Duration:
17.3s
Cost:
$0.008482
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="4416" name="Detective Harlow Quinn" aliases="Quinn, Detective Quinn, Harlow" pronouns="she/her" species="Human" storyRole="Antagonist"> <eyeColor>brown</eyeColor> <hair>closely cropped salt-and-pepper</hair> <height>5'9"</height> <age>41</age> <jawline>sharp jaw</jawline> <watch>worn leather watch on her left wrist</watch> <bearing>military precision</bearing> <description>A Metropolitan Police detective with 18 years of decorated service who suspects the clique is involved in criminal activity.</description> <backstory>She lost her partner, DS Morris, during a case three years ago under unexplained circumstances that had supernatural origins she doesn't yet understand.</backstory> </character> <character id="4417" name="Tomás Herrera" aliases="Tommy, Tomás, Herrera" pronouns="he/him" species="Human" storyRole="Support"> <eyeColor>warm brown</eyeColor> <hair>short curly dark brown</hair> <height>5'10"</height> <age>29</age> <skinTone>olive skin</skinTone> <scar>scar running along his left forearm from a knife attack</scar> <medallion>Saint Christopher medallion around his neck</medallion> <birthplace>Seville, Spain</birthplace> <description>A former paramedic who provides off-the-books medical care for the clique.</description> <backstory>Born in Seville, Spain. He moved to London to work for the NHS but lost his license after administering unauthorized treatments to supernatural patients.</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> <location id="856" name="The Veil Market" aliases="Veil Market, the Market, underground market" realm="Earth"> <currentLocation>abandoned Tube station beneath Camden</currentLocation> <entryRequirement>bone token</entryRequirement> <schedule>moves locations every full moon</schedule> <description>A hidden supernatural black market that sells enchanted goods, banned alchemical substances, and information.</description> </location> </codex> Write a fully fleshed out scene of at least 1000 words in the thriller genre. A detective is pursuing a suspect through rain-soaked city streets at night. The chase takes them from the street level down into an underground market. The detective must decide whether to follow the suspect into unfamiliar and potentially dangerous territory. 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 rain came down in sheets, turning the Soho streets into rivers of neon and shadow. Detective Harlow Quinn's worn leather
watch
read 11:47 PM when she spotted him slipping between the clusters of late-night revelers outside The Raven's Nest—a figure in a dark hoodie moving with the practiced ease of someone who knew he
was being
watch
ed. She'd been staking the bar for three weeks, ever since the bodies started piling up. Four now, all marked with symbols she didn't recognize, all connected by a thread she couldn't quite grasp. The thread led here, to this den in Soho with its green neon sign and its
carefully
curated air of criminal nonchalance. She knew the owner, Silas. E
very
one knew Silas. What they didn't know was what he did in the back rooms. The figure ducked left, away from the main pedestrian drag, and Quinn moved without thinking—eighteen years of muscle memory overriding caution. She was already across the street, her detective's coat flapping behind her like a dark wing, when he glanced back and saw her. He ran. Quinn's jaw tightened. She'd expected him to run. What she hadn't expected was how fast he'd move, weaving through the rain-slicked alleys with the desperation of someone who understood what capture meant. His trainers splashed through puddles, sending up spray that caught the amber glow of street lamps. Quinn kept pace, her breath controlled, her hand instinctively checking the warrant card in her pocket—a habit from a different time, when warrants meant something. The Soho streets narrowed, the buildings pressing closer, their Victorian facades dripping with rain and history. The figure ahead dove into an alley Quinn hadn't noticed before, the kind of space that London kept hidden from tourists and most residents—ancient and cramped and smelling of stone and old water. She followed, her eyes adjusting to the deeper darkness, her pulse steady but elevated. The alley ended. No exit. The figure pressed himself against the far brick wall, and Quinn advanced
slowly
,
deliberately
, her palms open in the universal gesture of someone trying to calm a trapped animal. "We just want to talk," she said, her voice carrying the
weight
of authority earned through two decades of interrogations. "About the murders. About what happened to those people." The figure's hood fell back. A young man, maybe twenty-five, with terror carved into e
very
line of his face. His eyes were too wide, pupils dilated, and Quinn recognized the signs—he was under something. Drugs or something worse. In her experience, worse was becoming increasingly likely. "You don't understand," he gasped. "You can't stop it. None of you can." "Try me," Quinn said, moving closer. "What can't we stop?" He laughed—a sound like breaking glass—and
suddenly
he was moving again, not toward Quinn but toward the far wall. He pressed his palm flat against the wet brick, and something happened. The wall
shimmered
, like heat distortion, like the world developing a stutter. Quinn's hand went to her service weapon automatically, though she knew guns wouldn't help here. Guns hadn't helped three years ago, either. They hadn't saved DS Morris, hadn't explained the way he'd simply ceased to exist in the superintendent's office, hadn't given her any logical framework for what she'd seen—or thought she'd seen—in those final seconds before he vanished. The figure
was disappearing
into the wall. "Stop!" Quinn lunged, her hand catching fabric, and
suddenly
the world inverted. The brick dissolved around her, and they
were falling
through something that wasn't quite solid and wasn't quite liquid. Her instinct screamed at her to fight it, to resist, but years of police training kicked in—control what you can control, adapt to what you can't. They landed hard on a metal platform that rang like a bell. Quinn came up in a crouch, weapon drawn, years of weapon training overriding the unreality of her surroundings. The figure scrambled backward, eyes still wild, and she followed the movement rather than the man, taking in the space around her. An old Tube station. Camden, if her instincts were right, though the architecture seemed subtly wrong—the walls too smooth, the tiles arranged in patterns that made her eyes slide away if she looked too directly. The platforms extended impossibly far in both directions, lit by lanterns that burned without visible flame. And the smell—incense, copper, something medicinal and wrong all at once. "The Veil Market," the figure breathed, scrambling to his feet. "You've followed me to the Veil Market, detective. They'll kill you for this. They'll kill you the way they killed—" "Move," Quinn commanded, stepping toward him, but the words died on her tongue. Figures
were emerging
from the shadows. Not many—three or four at first, then more. They wore clothes that
seemed to
shift when she
wasn't looking
directly at them, and their eyes held the calm of people who operated under rules Quinn didn't understand. One of them held a bone token, translucent and
gleaming
. The young man bolted deeper into the station, toward a corridor that led into darkness. Quinn
watch
ed him go, her weapon still drawn, her mind cycling through impossible scenarios. She had two choices: pursue the suspect into territory that belonged to no police jurisdiction she'd ever heard of, with rules she didn't comprehend and stakes she could only guess at. Or back away. Climb back through the dissolving brick and return to the rain-soaked streets where at least the laws of physics still applied. The figures moved closer. They
weren't threatening
—not yet—but there was a
weight
to their presence, a sense of infinite patience. One of them, a woman with eyes like old silver, smiled. "Detective," she said, her accent unplaceable. "You're
very
far from your precinct." Quinn's
jaw clenched
. She thought of DS Morris. She thought of the four bodies, all marked with symbols that no database could identify. She thought of the case files that went nowhere, the leads that evaporated, the superintendent suggesting early retirement. She lowered her weapon
slowly
,
deliberately
, and stepped toward the corridor where the figure had disappeared. "I'm exactly where I need to be," she said. The woman's smile widened. Behind her, the figures parted, creating a path deeper into the Market. Quinn walked through them, her worn leather
watch
ticking on her wrist, marking time in a place where time itself might not follow the normal rules. Somewhere ahead, the young man
was running
through impossible corridors. Somewhere ahead, answers waited in the dark. Quinn didn't hesitate. She'd stopped believing in turning back the day DS Morris vanished.
created_at
"2026-02-17T02:50:34.549624+00:00"
2/17/2026, 2:50:34 AM
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
982
moderation_latency
193
generation_time
17045
tokens_prompt
914
tokens_completion
1731
native_tokens_prompt
917
native_tokens_completion
1513
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
0.008482
router
(null)
provider_responses
0
id
"c72aac35-5770-4a29-b644-46c303d703a4"
status
200
is_byok
false
latency
982
endpoint_id
"d000261c-5aeb-47d1-ac87-ad64dbe1cdb6"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1771296617-Hts8rOJpp3whR0ftcIEl"
upstream_id
"c72aac35-5770-4a29-b644-46c303d703a4"
total_cost
0.008482
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
7
adverbTagCount
0
adverbTags
(empty)
27.7978%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1108
totalAiIsmAdverbs
8
found
0
adverb
"carefully"
count
1
1
adverb
"deliberately"
count
2
2
adverb
"slowly"
count
2
3
adverb
"suddenly"
count
2
4
adverb
"very"
count
1
highlights
0
"carefully"
1
"deliberately"
2
"slowly"
3
"suddenly"
4
"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)
54.8736%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1108
totalAiIsms
5
found
0
word
"shimmered"
count
1
1
word
"gleaming"
count
1
2
word
"jaw clenched"
count
1
3
word
"weight"
count
2
highlights
0
"shimmered"
1
"gleaming"
2
"jaw clenched"
3
"weight"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"jaw/fists clenched"
count
1
highlights
0
"jaw clenched"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
75
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
2
hedgeCount
1
narrationSentences
75
filterMatches
0
"watch"
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
80
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
29
mean
37.55
std
23.24
cv
0.619
sampleLengths
0
58
1
75
2
44
3
2
4
73
5
63
6
34
7
29
8
46
9
13
10
10
11
43
12
59
13
7
14
57
15
12
16
40
17
62
18
30
19
13
20
53
21
84
22
31
23
12
24
41
25
16
26
9
27
59
28
14
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
0
totalSentences
75
matches
(empty)
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
7
totalVerbs
193
matches
0
"was being"
1
"was disappearing"
2
"were falling"
3
"were emerging"
4
"wasn't looking"
5
"weren't threatening"
6
"was running"
91.1657%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1038
adjectiveStacks
0
stackExamples
(empty)
adverbCount
52
adverbRatio
0.05009633911368015
lyAdverbCount
18
lyAdverbRatio
0.017341040462427744
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
80
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
80
mean
13.61
std
8.86
cv
0.651
sampleLengths
0
16
1
42
2
15
3
18
4
22
5
5
6
3
7
12
8
21
9
23
10
2
11
3
12
5
13
24
14
16
15
25
16
16
17
33
18
14
19
3
20
2
21
29
22
20
23
9
24
5
25
14
26
15
27
4
28
8
29
5
30
8
31
6
32
4
33
19
34
12
35
12
36
15
37
7
38
37
39
7
40
12
41
19
42
26
43
12
44
18
45
22
46
4
47
31
48
16
49
11
60.0000%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
7
diversityRatio
0.4125
totalSentences
80
uniqueOpeners
33
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
7
fancyCount
5
fancyTags
0
"she said, her voice carrying the weight of authority earned through two decades of interrogations (say, carry earn)"
1
"he gasped (gasp)"
2
"Quinn said, moving closer (say, move)"
3
"the figure breathed, scrambling to his feet (breathe, scramble)"
4
"Quinn commanded, stepping toward him, but the words died on her tongue (command, step die)"
84.3434%