Run: 2026-09-23-01M37NZ3A9BFEDXGSTAHS3XXYV

Run Details

Duration:
56.0s
Cost:
$0.085544
Provider:
Claude Platform on AWS

Model input

System
You are an expert fiction writer. Always keep the following rules in mind: - Write in past tense and use General English spelling, grammar, and colloquialisms/slang. - Write in active voice - Always follow the "show, don't tell" principle. - Avoid adverbs and cliches and overused/commonly used phrases. Aim for fresh and original descriptions. - Convey events and story through dialogue. - Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. - Skip "he/she said said" dialogue tags and convey people's actions or face expressions through their speech - Avoid mushy dialog and descriptions, have dialogue always continue the action, never stall or add unnecessary fluff. Vary the descriptions to not repeat yourself. - Put dialogue on its own paragraph to separate scene and action. - Reduce indicators of uncertainty like "trying" or "maybe" When writing text: - NEVER conclude the scene on your own, follow the beat instructions very closely. - NEVER end with foreshadowing. - NEVER write further than what I prompt you with. - AVOID imagining possible endings, NEVER deviate from the instructions. - STOP EARLY if the continuation contains what was required in the instructions. You do not need to fill out the full amount of words possible.
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <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> Continue the story using the following instructions: <instructions> 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. </instructions>

Model response

AI
Rain came off the Camden rooftops in sheets, turning the gutters on Chalk Farm Road into shallow rivers that carried chip wrappers and cigarette ends towards the drains. Harlow Quinn had been standing in a doorway opposite the tattoo parlour for forty minutes. Water had worked its way through the shoulders of her coat. It pooled in her left sleeve, cold against the strap of her watch. 11:52. He was late. She'd picked him up outside the Raven's Nest in Soho just after ten. The green neon above the bar door had turned his face the colour of pond water as he stepped out, a canvas holdall slung across his body, collar turned up. Tomás Herrera. Twenty-nine. Struck off the medical register fourteen months ago for reasons the NHS tribunal had buried under three pages of redactions. She'd followed him onto the Northern line, two carriages down, and off again at Camden Town. He'd walked north with the unhurried stride of a man who knew exactly where he was going. Then he'd ducked into the tattoo parlour, and he hadn't come out. The door opened. A figure emerged, hood up, holdall bumping against his hip. He paused under the awning and checked his phone. The screen lit a strip of olive skin and the silver glint of a chain at his throat. Quinn stepped out of the doorway. A night bus hissed past between them, its wheels throwing a wall of spray across the pavement. When it cleared, Herrera had turned his head. He was looking straight at her. "Tomás Herrera. Metropolitan Police. I'd like a word." He ran. Quinn was already moving. Her boots hit the kerb, then the road, and a cyclist swerved and swore at her in a spray of grey water. Herrera cut left into a side street, past a row of shuttered market stalls lashed down with blue tarpaulin. The canvas snapped in the wind like sails. She thumbed her radio without breaking stride. "Control, DI Quinn. In foot pursuit, Castlehaven Road heading east. IC1 or IC3 male, late twenties, dark hoodie, carrying a holdall. Requesting units." The radio crackled back at her, the operator's voice flat with the tedium of a wet Tuesday. "Received. Nearest unit's eight minutes out, ma'am. Cordon's tied up at Kentish Town." "Eight minutes is no use to me." "Best I can do." She shoved the radio back into her pocket. Ahead, Herrera vaulted a low railing onto the canal towpath. He landed badly, one foot skidding on the slick cobbles, and threw out an arm to catch himself against the brickwork. The sleeve rode up. Even at thirty yards, under the sodium glow of the lamps, she saw the pale seam of a scar running the length of his forearm. He glanced back. She was closer now. "You're making this worse for yourself, Tomás!" "I haven't done anything!" "Then stop running!" He didn't. He sprinted under the bridge, the echo of his footsteps bouncing off the arched ceiling, and Quinn followed him into the dark. The canal ran black and swollen to her left, the surface pocked with rain. A narrowboat bumped against its moorings. Someone inside had a radio on, some late-night phone-in, a caller complaining about bin collections. Her lungs burned. Forty-one wasn't old, but she'd spent the last three years behind a desk more than she cared to admit, and her knees reminded her of it with every stride. Herrera left the towpath at a set of iron steps and climbed back towards the street. By the time Quinn reached the top, he'd crossed the road and stopped in front of a construction hoarding. Eight feet of plywood painted council green, plastered with fly posters for gigs that had happened months ago. He pressed his palm flat against one of the panels. It swung inwards. "Don't you bloody dare." He looked back at her one more time. Rain ran off the end of his nose. He was breathing hard, and there was something in his face she hadn't expected. Not guilt. Not defiance. Pity. "Go home, Detective. Please." Then he was through, and the panel swung shut behind him. Quinn crossed the road at a jog and put her shoulder into the hoarding. It gave with a groan of hinges. Behind it, a narrow strip of wasteland stretched towards the back of a Victorian building clad in oxblood tiles, the kind London Underground had slapped onto every station a century ago. The arched windows had been bricked up. The entrance had been sealed with a steel shutter, but the shutter stood three feet off the ground, and warm yellow light spilled out from beneath it onto the wet gravel. She could hear music. Strings, something with a minor key. Voices underneath it, dozens of them, a murmur like a crowd at a railway terminus. Quinn crouched and ducked under the shutter. The ticket hall had been gutted. Rotting timber booths lined one wall, their glass long since smashed out. Beyond them, the mouth of a spiral staircase dropped into the earth, and the light came up from somewhere far below it, flickering and amber. The air smelled of wet stone and something else. Cloves. Burnt sugar. Beneath that, a mineral tang like the inside of an old coin. A man sat on a folding chair beside the staircase. At least, she took him for a man at first. He wore a threadbare overcoat buttoned to the throat and a flat cap pulled low, and his hands rested on the head of a walking stick carved from something yellow and porous. When he lifted his face, the lamplight didn't reach his eyes. "Evening." His voice was dry. It sounded like paper being folded. "A man just came through here. Holdall, dark hoodie. Where did he go?" "Down. Where everyone goes." He tilted his head. "Token?" "I'm a police officer." "I know what you are, love. Token." She pulled her warrant card from her coat and held it up. He didn't look at it. "That's a very nice picture. It won't get you down the stairs." "I'm pursuing a suspect. Obstruct me and you'll be spending the night in a cell at Holborn." He laughed. It was a short sound, without much air behind it. "Nobody's been arrested on these stairs in two hundred years. You won't be the first. No token, no passage. That's the rule of the Market, and the Market doesn't bend for anyone. Not even for detectives who've come such a long way in the rain." From below, the music swelled. Someone laughed, high and bright, and the sound spiralled up the stairwell and died away. Quinn lowered the warrant card. Her hand went to the inside pocket of her coat, the one she never used, and her fingers closed around a small object wrapped in a folded handkerchief. She'd found it three years ago in Danny Morris's desk drawer, the week after they'd pulled what remained of him out of that warehouse in Deptford. A disc of bone the size of a two-pound coin, drilled through the middle, carved with a pattern she'd never been able to match to anything. Not Norse, not Celtic, not any gang sign in the Met's database. She'd shown it to a forensic anthropologist at UCL, who'd turned it over in her gloved hands for a long time and then asked Quinn, very quietly, where she'd got it. Quinn had never told the Coroner. She'd never told anyone. She'd carried it every day since, and she couldn't have said why. She unfolded the handkerchief. The bone gleamed in the lamplight, the colour of old piano keys. The gatekeeper went still. For the first time, he looked at her properly. "Well now. Where'd a copper get hold of one of those?" "From a friend." "Must have been a good friend." He reached out one long finger and touched the edge of the disc without taking it. His fingernail clicked against the bone. "This one's been down before. More than once. I remember it." "Then you'll remember the man who carried it." "I remember a lot of things. Doesn't mean I talk about them." He withdrew his hand and settled back into the folding chair. "It's valid. Stairs are yours, if you want them." Quinn looked at the staircase. The iron treads were worn to a shine in the middle, polished by more feet than she wanted to count. The light at the bottom pulsed, slow and steady, like something breathing. Her radio crackled in her pocket. "DI Quinn, Control. Unit's now five minutes out. Confirm your location." She took the radio out and held it. Her thumb rested on the transmit button. The gatekeeper watched her. He didn't say anything. He didn't need to. Five minutes. Uniforms in hi-vis jackets, torches, a dog handler if she was lucky. A report that would land on the Superintendent's desk by Thursday. A derelict station, some squatters, suspect not located. Case closed. Herrera gone, and whatever he knew going with him. Danny had walked down these stairs. She was sure of it now, sure in a way that sat in her stomach like a stone. He'd walked down with that token in his pocket, and he'd come back up, and he'd never said a single word to her about it. She pressed the button. "Control, Quinn. False alarm. Lost him near the canal. Stand the unit down." A pause. Static. "Received. Standing down." She switched the radio off and slid it into her coat. Then she wrapped the bone token back in the handkerchief, closed her fist around it, and set her foot on the first iron step.
created_at"2026-09-23T17:45:40.958Z" 9/23/2026, 5:45:40 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5773
moderation_latency(null)
generation_time55994
tokens_prompt1104
tokens_completion2565
native_tokens_prompt1576
native_tokens_completion3962
native_tokens_completion_images(null)
native_tokens_reasoning766
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.085544
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790185540-nrboiIeel743WmMZ4YPu"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790185540-HpnikG4cUxZg2Q5SLWll"
upstream_id"msg_011CfLngBaWW5vvM2cTNwz2W"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLngBaWW5vvM2cTNwz2W"
is_byokfalse
latency1358
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.085544
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags3
adverbTagCount0
adverbTags(empty)
dialogueSentences29
tagDensity0.103
leniency0.207
rawRatio0
effectiveRatio0
93.81% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1616
totalAiIsmAdverbs2
found
0
adverb"very"
count2
highlights
0"very"
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)
81.44% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1616
totalAiIsms6
found
0
word"glint"
count1
1
word"echo"
count1
2
word"footsteps"
count1
3
word"database"
count1
4
word"pulsed"
count1
5
word"stomach"
count1
highlights
0"glint"
1"echo"
2"footsteps"
3"database"
4"pulsed"
5"stomach"
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
narrationSentences123
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences123
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences149
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen45
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1616
ratio0
matches(empty)
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
totalMentions41
wordCount1348
uniqueNames24
maxNameDensity0.82
worstName"Quinn"
maxWindowNameDensity1.5
worstWindowName"Quinn"
discoveredNames
Camden2
Chalk1
Farm1
Road1
Quinn11
Raven1
Nest1
Soho1
Herrera6
Northern1
Town1
Tuesday1
Victorian1
London1
Underground1
Danny2
Morris1
Deptford1
Norse1
Celtic1
Met1
Coroner1
Superintendent1
Thursday1
persons
0"Quinn"
1"Herrera"
2"Underground"
3"Danny"
4"Morris"
5"Superintendent"
places
0"Camden"
1"Chalk"
2"Farm"
3"Road"
4"Raven"
5"Soho"
6"Town"
7"Victorian"
8"London"
9"Deptford"
10"Met"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences86
glossingSentenceCount1
matches
0"sounded like paper being folded"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1616
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences149
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs68
mean23.76
std24.13
cv1.015
sampleLengths
067
14
299
312
440
56
631
78
82
953
107
1123
1217
1313
147
154
1668
177
187
194
203
2159
2232
2363
243
254
2635
274
2811
2990
3025
317
3267
3363
341
3510
3613
379
384
397
4017
4112
4217
4312
4445
4520
4633
4795
4822
4916
91.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences123
matches
0"been bricked"
1"been sealed"
2"been gutted"
3"being folded"
4"were worn"
71.18% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs207
matches
0"was going"
1"was looking"
2"was already moving"
3"was breathing"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences149
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1354
adjectiveStacks0
stackExamples(empty)
adverbCount29
adverbRatio0.02141802067946824
lyAdverbCount5
lyAdverbRatio0.003692762186115214
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences149
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences149
mean10.85
std8.3
cv0.765
sampleLengths
028
115
211
313
41
53
613
730
82
91
1020
1116
1217
1312
143
1510
169
1718
186
1917
208
216
228
232
244
2522
2619
278
287
2923
3017
3113
327
334
348
3510
3621
374
3825
393
404
417
424
433
442
4522
4614
476
4815
493
57.43% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats10
diversityRatio0.38513513513513514
totalSentences148
uniqueOpeners57
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount4
totalSentences108
matches
0"Then he'd ducked into the"
1"Then he was through, and"
2"At least, she took him"
3"Then she wrapped the bone"
ratio0.037
49.63% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount46
totalSentences108
matches
0"It pooled in her left"
1"He was late."
2"She'd picked him up outside"
3"She'd followed him onto the"
4"He'd walked north with the"
5"He paused under the awning"
6"He was looking straight at"
7"Her boots hit the kerb,"
8"She thumbed her radio without"
9"She shoved the radio back"
10"He landed badly, one foot"
11"He glanced back."
12"She was closer now."
13"He sprinted under the bridge,"
14"Her lungs burned."
15"He pressed his palm flat"
16"It swung inwards."
17"He looked back at her"
18"He was breathing hard, and"
19"It gave with a groan"
ratio0.426
57.22% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount87
totalSentences108
matches
0"Rain came off the Camden"
1"Harlow Quinn had been standing"
2"Water had worked its way"
3"It pooled in her left"
4"He was late."
5"She'd picked him up outside"
6"The green neon above the"
7"She'd followed him onto the"
8"He'd walked north with the"
9"The door opened."
10"A figure emerged, hood up,"
11"He paused under the awning"
12"The screen lit a strip"
13"Quinn stepped out of the"
14"A night bus hissed past"
15"He was looking straight at"
16"Quinn was already moving."
17"Her boots hit the kerb,"
18"Herrera cut left into a"
19"The canvas snapped in the"
ratio0.806
92.59% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences108
matches
0"Even at thirty yards, under"
1"By the time Quinn reached"
ratio0.019
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences58
technicalSentenceCount2
matches
0"Rain came off the Camden rooftops in sheets, turning the gutters on Chalk Farm Road into shallow rivers that carried chip wrappers and cigarette ends towards th…"
1"She'd shown it to a forensic anthropologist at UCL, who'd turned it over in her gloved hands for a long time and then asked Quinn, very quietly, where she'd got…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags3
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags0
93.1433%