Run: 2026-06-01-01KT1H0XEKNMK58QM6CCKSSJ2S

Run Details

Duration:
48.6s
Cost:
$0.068395
Provider:
Anthropic

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 hammered the pavement, turning Soho into a smear of neon and shadow. Quinn ran, boots slapping puddles, her breath sawing in time with the pulse behind her eyes. Ahead of her the man darted between a shuttered kebab shop and a row of bins, his curly dark hair flattened to his skull, the white flash of a medallion catching the light each time he glanced back. "Herrera! Police—stop!" He didn't stop. They never did. Quinn vaulted a low chain barrier, her watch strap biting into her wrist as she caught herself against a lamppost and swung around the corner. Tomás Herrera had a paramedic's stamina and a head start, but she'd been chasing men like him for eighteen years and she knew the geography of every alley in this part of the city. He cut left toward Old Compton Street. She cut right, through a service passage that stank of fryer grease and standing water, and came out ahead of him. He skidded to a halt three feet from her, chest heaving. "You're a hard man to find, Tomás." "You shouldn't be looking." His accent thickened when he was frightened, the consonants sharpening. "You don't understand what you're walking into." "Then explain it to me. Down the station. Out of the rain." He laughed, a hollow sound, and backed away with both palms raised. "There's no station for what I do. No paperwork." A taxi sluiced past, its headlamps washing them both white, and in that half-second of blindness he bolted. Quinn swore and went after him. He ran east, then south, weaving through the late crowd spilling out of a club, using the bodies as obstacles. She shouldered through, flashing her warrant card at a bouncer who moved to block her, the laminate slick with rain. By the time she broke free Herrera was already crossing the road against the lights, a bus blaring its horn as it missed him by inches. She followed. The bus driver's curse chased her across the tarmac. The streets narrowed. Georgian frontages gave way to scaffolding and hoardings, the bones of a city always remaking itself. Quinn's lungs burned. Three years she'd been pulling at this thread—ever since Morris vanished, since the case that everyone above her had quietly buried. The clique. The bar with the green sign. The men and women who left no fingerprints and no explanations. Herrera was the loose stitch. The one she could reach. He ducked down a flight of steps into a Tube station. Camden. The sign above read CLOSED, the gates half-drawn, a sheet of plywood peeling away from the entrance where someone had levered it loose. No lights inside. The Underground line through here had been shut for years—she remembered the closure, the news about subsidence, the platforms left to the dark. Herrera squeezed through the gap in the plywood and was gone. Quinn stopped at the top of the steps, rain streaming off the end of her nose, and stared into the black mouth of the station. Her hand found the radio at her shoulder. Dead air. No signal, this far down between the buildings, or the unit was out of range. She thumbed it anyway. "Control, this is DI Quinn. In pursuit, suspect entered the disused Camden Tube station, request backup—" Static answered her. "—request backup at this location, do you copy." Nothing. She lowered the radio. The sensible thing was to wait. Cordon the exits, call it in properly, take the man when daylight and numbers were on her side. Eighteen years of training told her so. The detective who chased a suspect alone into a derelict tunnel with no comms and no support was the detective who ended up in the incident reports she filed for other people. But she thought of Morris. The way he'd grinned at her over a paper cup of coffee and said he'd be ten minutes, just ten, and how she'd let him go alone into a building exactly like this one. They'd never found him. Not a body, not a thread of clothing. Just an open door and a silence that had followed her for three years. She wasn't going to stand at the top of the steps and let another one walk into the dark. Quinn drew her telescopic baton, snapped it open, and went down. The plywood scraped her shoulder as she pushed through. Inside, the air changed—warmer, close, carrying a smell that didn't belong to a dead station. Not damp concrete and rat. Something sweeter underneath. Spice and smoke and something floral gone slightly rotten. Her torch beam swept across ticket machines furred with dust, a fare gate frozen open, posters bleached to ghosts on the tiled walls. Wet footprints led across the floor toward the escalators. "Herrera." Her voice came back flat, swallowed by the tile. "There's no way out down there. Make this easy." The escalators were stilled, two steel ribbons descending into nothing. She started down, baton in one hand, torch in the other, testing each step. Halfway down the beam picked out something that stopped her cold. The walls of the shaft had been hung with cloth—heavy dark fabric, embroidered with symbols she didn't recognise, the threadwork catching her light and throwing it back in colours that shouldn't have been there. At intervals, small bowls had been set into niches carved out of the wall, each holding a stub of candle, each one lit. Someone tended this place. The bottom of the escalator opened onto the platform level, and Quinn's torch became unnecessary. Light bloomed ahead of her—lanterns strung along the curved ceiling, braziers throwing orange heat, the dead platform transformed into something she had no word for. Stalls lined the tracks and the platform edge, draped in fabric, stacked with jars and bottles and things in cages she didn't let her eyes linger on. People moved between them, hooded, masked, their voices a low murmur in languages that slid past her ears. A woman with too many rings turned a bone over in her palm. A figure in a long coat bargained over something that pulsed with a soft inner light. Quinn froze at the threshold, baton suddenly absurd in her grip. A man at the nearest stall lifted his head and looked directly at her. Then another. The murmur faltered. "You're going to get yourself killed," Herrera said. He stood ten feet inside, half-lit by a brazier, the medallion at his throat glinting, his chest still heaving from the run. The scar on his forearm shone pale where his sleeve had ridden up. "What is this place." Not a question. Her mouth had gone dry. "The kind of place you need a token to enter." He held up something small and yellowed between two fingers—bone, carved, no bigger than a coin. "You don't have one. Which means everyone here is now deciding whether you leave on your feet." Quinn's grip tightened on the baton. Behind her, the escalator she'd come down by sat silent. The way out. The way she should have taken the moment she smelled that air and saw those candles burning in a station that had no business with light. She took a step forward instead, onto the platform, into the warmth and the watching eyes. "Then I suppose," she said, "you'd better start talking fast."
created_at"2026-06-01T12:02:34.585Z" 6/1/2026, 12:02:34 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3210
moderation_latency(null)
generation_time48586
tokens_prompt1140
tokens_completion1887
native_tokens_prompt1574
native_tokens_completion2421
native_tokens_completion_images(null)
native_tokens_reasoning65
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"
usage0.068395
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01ScA6UAaFB92fe67aZNxgwt"
is_byokfalse
latency1138
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
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api_type"completions"
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upstream_id"msg_01ScA6UAaFB92fe67aZNxgwt"
total_cost0.068395
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provider_name"Anthropic"
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Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags7
adverbTagCount0
adverbTags(empty)
dialogueSentences15
tagDensity0.467
leniency0.933
rawRatio0
effectiveRatio0
91.88% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1232
totalAiIsmAdverbs2
found
0
adverb"slightly"
count1
1
adverb"suddenly"
count1
highlights
0"slightly"
1"suddenly"
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)
75.65% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1232
totalAiIsms6
found
0
word"pulse"
count1
1
word"streaming"
count1
2
word"silence"
count1
3
word"pulsed"
count1
4
word"glinting"
count1
5
word"warmth"
count1
highlights
0"pulse"
1"streaming"
2"silence"
3"pulsed"
4"glinting"
5"warmth"
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
narrationSentences90
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences90
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences97
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen38
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1224
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions5
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions22
wordCount1111
uniqueNames9
maxNameDensity0.81
worstName"Quinn"
maxWindowNameDensity1.5
worstWindowName"Herrera"
discoveredNames
Soho1
Herrera5
Old1
Compton1
Street1
Morris2
Tube1
Underground1
Quinn9
persons
0"Herrera"
1"Morris"
2"Quinn"
places
0"Soho"
1"Old"
2"Compton"
3"Street"
4"Tube"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences63
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1224
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences97
matches
0"smelled that air"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs39
mean31.38
std27.68
cv0.882
sampleLengths
067
12
26
387
411
57
621
712
821
924
1066
1111
1272
1311
1450
1511
1654
1727
181
1967
2065
2119
2211
2364
249
2519
2692
274
2815
2999
3011
3119
328
3335
3412
3543
3645
3716
3810
85.77% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences90
matches
0"was frightened"
1"been shut"
2"was gone"
3"were stilled"
4"been hung"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs184
matches
0"was already crossing"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount7
semicolonCount0
flaggedSentences7
totalSentences97
ratio0.072
matches
0"Three years she'd been pulling at this thread—ever since Morris vanished, since the case that everyone above her had quietly buried."
1"The Underground line through here had been shut for years—she remembered the closure, the news about subsidence, the platforms left to the dark."
2"\"—request backup at this location, do you copy.\""
3"Inside, the air changed—warmer, close, carrying a smell that didn't belong to a dead station."
4"The walls of the shaft had been hung with cloth—heavy dark fabric, embroidered with symbols she didn't recognise, the threadwork catching her light and throwing it back in colours that shouldn't have been there."
5"Light bloomed ahead of her—lanterns strung along the curved ceiling, braziers throwing orange heat, the dead platform transformed into something she had no word for."
6"\"The kind of place you need a token to enter.\" He held up something small and yellowed between two fingers—bone, carved, no bigger than a coin."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount547
adjectiveStacks0
stackExamples(empty)
adverbCount10
adverbRatio0.018281535648994516
lyAdverbCount2
lyAdverbRatio0.003656307129798903
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences97
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences97
mean12.62
std8.69
cv0.689
sampleLengths
013
116
238
32
43
53
625
734
87
921
1011
117
1214
137
1412
1512
169
1718
186
1920
2020
2126
222
239
243
2516
263
2721
282
296
3011
315
325
3311
341
3523
363
3723
3811
3925
408
412
4215
434
4419
458
461
474
486
4918
61.51% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats7
diversityRatio0.41237113402061853
totalSentences97
uniqueOpeners40
40.65% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences82
matches
0"Just an open door and"
ratio0.012
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount22
totalSentences82
matches
0"He didn't stop."
1"They never did."
2"He cut left toward Old"
3"She cut right, through a"
4"He skidded to a halt"
5"His accent thickened when he"
6"He laughed, a hollow sound,"
7"He ran east, then south,"
8"She shouldered through, flashing her"
9"He ducked down a flight"
10"Her hand found the radio"
11"She thumbed it anyway."
12"She lowered the radio."
13"They'd never found him."
14"She wasn't going to stand"
15"Her torch beam swept across"
16"Her voice came back flat,"
17"She started down, baton in"
18"He stood ten feet inside,"
19"Her mouth had gone dry."
ratio0.268
63.66% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount65
totalSentences82
matches
0"Quinn ran, boots slapping puddles,"
1"He didn't stop."
2"They never did."
3"Quinn vaulted a low chain"
4"Tomás Herrera had a paramedic's"
5"He cut left toward Old"
6"She cut right, through a"
7"He skidded to a halt"
8"His accent thickened when he"
9"He laughed, a hollow sound,"
10"A taxi sluiced past, its"
11"Quinn swore and went after"
12"He ran east, then south,"
13"She shouldered through, flashing her"
14"The bus driver's curse chased"
15"The streets narrowed."
16"Georgian frontages gave way to"
17"Quinn's lungs burned."
18"The bar with the green"
19"The men and women who"
ratio0.793
60.98% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences82
matches
0"By the time she broke"
ratio0.012
66.87% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences47
technicalSentenceCount5
matches
0"Quinn ran, boots slapping puddles, her breath sawing in time with the pulse behind her eyes."
1"The detective who chased a suspect alone into a derelict tunnel with no comms and no support was the detective who ended up in the incident reports she filed fo…"
2"The walls of the shaft had been hung with cloth—heavy dark fabric, embroidered with symbols she didn't recognise, the threadwork catching her light and throwing…"
3"People moved between them, hooded, masked, their voices a low murmur in languages that slid past her ears."
4"He stood ten feet inside, half-lit by a brazier, the medallion at his throat glinting, his chest still heaving from the run."
53.57% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags7
uselessAdditionCount1
matches
0"His accent thickened, the consonants sharpening"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags3
fancyCount0
fancyTags(empty)
dialogueSentences15
tagDensity0.2
leniency0.4
rawRatio0
effectiveRatio0
86.6847%