Run: 2026-07-01-01KWE95GHRGB9X8DMTM298GRSN

Run Details

Duration:
34.3s
Cost:
$0.024488
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

AI
The rain had been falling for three hours straight, long enough to turn the Camden pavements slick and black, long enough that Quinn's coat had stopped being waterproof somewhere around the second hour and started being simply wet. She didn't slow down for it. She hadn't slowed down for anything since she'd spotted him outside the chemist's on Parkway, a thin man in a grey hoodie who'd looked at her the way rabbits look at dogs, and then run. His name was Errol Finch, according to the intelligence she'd cobbled together over six weeks of surveillance that her superintendent had told her, twice, to abandon. Petty thief, sometime courier, a man who moved things for people who didn't want to be seen moving things themselves. Three days ago he'd been photographed outside the Raven's Nest at two in the morning, and two days before that, near a warehouse in Deptford that had turned up nothing when she'd finally gotten a warrant, nothing but scorch marks on the concrete floor in a pattern she still couldn't explain to herself, let alone to anyone else. She rounded the corner onto the high street and saw him again, forty yards ahead, weaving between the shuttered shopfronts with the loose, animal panic of a man who knew exactly how much trouble he was in. "Finch!" she shouted, though she knew it was useless, had always been useless, shouting a suspect's name into the dark as if he might simply stop and wait for her. "Metropolitan Police! Stop where you are!" He didn't stop. He cut left down an alley she recognized, a narrow gap between a defunct print shop and a betting office, the kind of alley that showed up on no map because it led, ostensibly, nowhere. She'd chased plenty of suspects into plenty of dead ends over eighteen years. She knew what nowhere looked like. This didn't look like nowhere. Even as she skidded into the alley after him, boots slapping through a puddle deep enough to soak her socks, she registered that the walls here were wrong somehow, closer together than they should have been, the brick older, sootier, as if the alley had been built a century before the street that fed into it. The rain didn't seem to fall the same way in here. It came down heavier, straighter, like it was being funneled. Finch reached the end of the alley, where a grate the size of a manhole cover sat sunk into the cobblestones, half-hidden under a drift of newspaper and dead leaves. He crouched, wrenched it up with both hands, and dropped through the gap without hesitation, the way a man drops through a hole he's used a hundred times before. Quinn stopped six feet from the opening, breathing hard, rain running down the back of her collar. She knew this feeling. She'd had it once before, three years ago, in a stairwell in Whitechapel with Morris half a step behind her, both of them chasing a suspect who'd turned a corner and simply hadn't been there anymore. She'd had it in the weeks after, standing in Morris's empty office, in the report she'd written and rewritten and finally filed with the details that couldn't be explained scrubbed out of it entirely, because you couldn't write *the walls seemed to breathe* in a Metropolitan Police incident report and keep your job. She'd had it every night since, in the particular quality of silence that had replaced her partner. This feeling was the smell of something underneath the ordinary world. And every instinct honed by eighteen years of decorated service told her to call it in, to stand at the edge of that hole and wait for backup, for lights, for the reassuring weight of procedure. She looked down into the dark of the grate instead. There was a smell coming up from it — tallow smoke, and something sweetish underneath that she didn't want to name, and beneath both of those, faint but unmistakable, the particular cold mineral smell of very old stone that had never seen daylight. Somewhere down there, faint, she heard voices. Not shouting. Bartering. The ordinary murmur of commerce, muffled by depth and distance, as though an entire market were breathing beneath the city's skin. Her hand found her radio clipped to her shoulder. Her thumb rested on the call button. She thought about Morris. She thought about the scorch marks in Deptford that had no accelerant, no chemical signature, nothing that fire investigation could explain. She thought about eighteen years of cases that had closed clean, and the one that hadn't, and how she had spent three years lying to herself that the not-closing was simply bad luck, bad evidence, nothing more sinister than the ordinary failures of an ordinary job. She took her thumb off the button. If she called it in, they'd send a response unit, and by the time proper backup navigated the alley and worked out how to get a uniform down a hole clearly not built for a uniform's shoulders, Finch would be three streets and forty faces deep into wherever this went. And she would be back to nothing, the way she'd been back to nothing after Whitechapel, after Morris, after all of it. Another disappearance she couldn't explain, filed under things she'd learned not to ask about out loud. Rain ran into her eyes. She swiped it away with the back of her hand. She crouched at the lip of the grate, found the first rusted rung of a ladder bolted into old brick, and started down. The cold hit her first — not the wet chill of the London night above, but something drier and older, air that had been circulating in the same enclosed dark for longer than she wanted to think about. The rungs were slick with condensation. Twenty feet down, the ladder ended on a narrow platform, and beyond it, unmistakably, lay the curved tiled wall of a disused Underground station, the paint on the old signage flaked away to illegibility, the platform edge worn smooth by feet that should not have had any reason to walk there in the seventy years since the line had closed. Lantern light glowed somewhere ahead, warm and amber, throwing long shadows down the platform. She could hear the market properly now — voices haggling in accents she couldn't place, a sound like chimes made of something other than metal, laughter that didn't quite sound human. At the near end of the platform stood a figure she didn't recognize, robed, hooded, utterly still, holding out one hand as if expecting payment. Quinn's hand drifted to the badge in her coat pocket, then stopped. Something told her, with absolute certainty, that flashing it here would get her killed rather than obeyed. She straightened her spine instead, squared her shoulders with the same military bearing that had carried her through eighteen years of walking into rooms she wasn't wanted in, and walked forward into the light, watching for Finch, watching for anything, already understanding that whatever she found down here, she would not be able to un-find it.
created_at"2026-07-01T07:26:47.876Z" 7/1/2026, 7:26:47 AM
model"anthropic/claude-sonnet-5-20260630"
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generation_time34294
tokens_prompt914
tokens_completion1753
native_tokens_prompt1264
native_tokens_completion2196
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
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origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
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latency2345
model_permaslug"anthropic/claude-sonnet-5-20260630"
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data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags1
adverbTagCount0
adverbTags(empty)
dialogueSentences2
tagDensity0.5
leniency1
rawRatio0
effectiveRatio0
91.58% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1188
totalAiIsmAdverbs2
found
0
adverb"very"
count1
1
adverb"utterly"
count1
highlights
0"very"
1"utterly"
100.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found(empty)
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
78.96% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1188
totalAiIsms5
found
0
word"silence"
count1
1
word"weight"
count1
2
word"sinister"
count1
3
word"navigated"
count1
4
word"chill"
count1
highlights
0"silence"
1"weight"
2"sinister"
3"navigated"
4"chill"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences52
matches(empty)
60.44% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount2
narrationSentences52
filterMatches
0"look"
hedgeMatches
0"seem to"
1"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences53
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen60
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans1
markdownWords5
totalWords1191
ratio0.004
matches
0"the walls seemed to breathe"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions8
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions24
wordCount1184
uniqueNames14
maxNameDensity0.34
worstName"Finch"
maxWindowNameDensity1
worstWindowName"Morris"
discoveredNames
Camden1
Quinn3
Parkway1
Errol1
Finch4
Raven1
Nest1
Deptford2
Whitechapel2
Morris4
Metropolitan1
Police1
London1
Underground1
persons
0"Quinn"
1"Errol"
2"Finch"
3"Morris"
places
0"Raven"
1"Deptford"
2"Whitechapel"
3"Metropolitan"
4"London"
globalScore1
windowScore1
0.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences45
glossingSentenceCount3
matches
0"looked like"
1"quite sound human"
2"as if expecting payment"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.84
wordCount1191
matches
0"not the wet chill of the London night above, but something drier"
40.88% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount2
totalSentences53
matches
0"registered that the"
1"understanding that whatever"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs23
mean51.78
std31.6
cv0.61
sampleLengths
079
1104
237
336
457
582
659
717
8110
947
1010
1174
1216
1371
147
1588
1615
1723
18104
1945
2025
2129
2256
85.02% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences52
matches
0"been photographed"
1"been built"
2"being funneled"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs192
matches
0"were breathing"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount0
flaggedSentences3
totalSentences53
ratio0.057
matches
0"There was a smell coming up from it — tallow smoke, and something sweetish underneath that she didn't want to name, and beneath both of those, faint but unmistakable, the particular cold mineral smell of very old stone that had never seen daylight."
1"The cold hit her first — not the wet chill of the London night above, but something drier and older, air that had been circulating in the same enclosed dark for longer than she wanted to think about."
2"She could hear the market properly now — voices haggling in accents she couldn't place, a sound like chimes made of something other than metal, laughter that didn't quite sound human."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1183
adjectiveStacks0
stackExamples(empty)
adverbCount47
adverbRatio0.039729501267962805
lyAdverbCount13
lyAdverbRatio0.01098901098901099
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences53
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences53
mean22.47
std16.76
cv0.746
sampleLengths
038
16
235
326
420
558
637
730
86
93
1035
1113
126
135
1456
1511
1610
1730
1829
1917
204
2136
2253
2317
2411
2536
2610
2743
287
292
301
3121
329
337
344
3521
3646
377
3850
3922
4016
415
4210
4323
4438
456
4660
4714
4831
4925
55.97% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats12
diversityRatio0.4716981132075472
totalSentences53
uniqueOpeners25
66.67% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences50
matches
0"Somewhere down there, faint, she"
ratio0.02
12.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount26
totalSentences50
matches
0"She didn't slow down for"
1"She hadn't slowed down for"
2"His name was Errol Finch,"
3"She rounded the corner onto"
4"she shouted, though she knew"
5"He didn't stop."
6"He cut left down an"
7"She'd chased plenty of suspects"
8"She knew what nowhere looked"
9"It came down heavier, straighter,"
10"He crouched, wrenched it up"
11"She knew this feeling."
12"She'd had it once before,"
13"She'd had it in the"
14"She'd had it every night"
15"She looked down into the"
16"Her hand found her radio"
17"Her thumb rested on the"
18"She thought about Morris."
19"She thought about the scorch"
ratio0.52
60.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount40
totalSentences50
matches
0"The rain had been falling"
1"She didn't slow down for"
2"She hadn't slowed down for"
3"His name was Errol Finch,"
4"She rounded the corner onto"
5"she shouted, though she knew"
6"He didn't stop."
7"He cut left down an"
8"She'd chased plenty of suspects"
9"She knew what nowhere looked"
10"This didn't look like nowhere."
11"The rain didn't seem to"
12"It came down heavier, straighter,"
13"Finch reached the end of"
14"He crouched, wrenched it up"
15"Quinn stopped six feet from"
16"She knew this feeling."
17"She'd had it once before,"
18"She'd had it in the"
19"She'd had it every night"
ratio0.8
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences50
matches
0"Even as she skidded into"
1"If she called it in,"
ratio0.04
0.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences37
technicalSentenceCount11
matches
0"Three days ago he'd been photographed outside the Raven's Nest at two in the morning, and two days before that, near a warehouse in Deptford that had turned up …"
1"She rounded the corner onto the high street and saw him again, forty yards ahead, weaving between the shuttered shopfronts with the loose, animal panic of a man…"
2"Even as she skidded into the alley after him, boots slapping through a puddle deep enough to soak her socks, she registered that the walls here were wrong someh…"
3"She'd had it in the weeks after, standing in Morris's empty office, in the report she'd written and rewritten and finally filed with the details that couldn't b…"
4"There was a smell coming up from it — tallow smoke, and something sweetish underneath that she didn't want to name, and beneath both of those, faint but unmista…"
5"The ordinary murmur of commerce, muffled by depth and distance, as though an entire market were breathing beneath the city's skin."
6"She thought about the scorch marks in Deptford that had no accelerant, no chemical signature, nothing that fire investigation could explain."
7"She thought about eighteen years of cases that had closed clean, and the one that hadn't, and how she had spent three years lying to herself that the not-closin…"
8"The cold hit her first — not the wet chill of the London night above, but something drier and older, air that had been circulating in the same enclosed dark for…"
9"Twenty feet down, the ladder ended on a narrow platform, and beyond it, unmistakably, lay the curved tiled wall of a disused Underground station, the paint on t…"
10"At the near end of the platform stood a figure she didn't recognize, robed, hooded, utterly still, holding out one hand as if expecting payment."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags1
uselessAdditionCount0
matches(empty)
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags1
fancyCount1
fancyTags
0"she shouted (shout)"
dialogueSentences2
tagDensity0.5
leniency1
rawRatio1
effectiveRatio1
75.0507%