Run: 2026-02-19-01KHTYXK1FAFKCCESGF5J8XTGM

Run Details

Duration:
1m 3s
Cost:
$0.064800
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
The rain hammered down on Soho's cobblestones, turning the narrow streets into rivers of reflected neon. Detective Harlow Quinn's boots slapped through puddles as she rounded the corner onto Greek Street, her breath coming in sharp bursts that misted in the November air. Fifty meters ahead, the figure in the dark hoodie knocked over a restaurant's sandwich board without breaking stride. Quinn's fingers twitched toward her radio, then dropped away. No backup. Not for this one. Not when she couldn't explain what she was chasing or why. Three years. Three years since Morris had died in that warehouse in Deptford, his body found without a mark on it, his face frozen in an expression she still saw when she closed her eyes. The official report called it cardiac arrest. Quinn knew better. She'd seen the symbols painted on the floor around him, watched them fade like morning frost before the forensics team arrived. The suspect ducked left into Bateman Street. Quinn pushed harder, her lungs burning, her worn leather watch slapping against her wrist with each stride. The man—if he was a man—had been at The Raven's Nest fifteen minutes ago, slipping out the back the moment she'd walked through the front door. Like he'd known she was coming. She'd been watching that bar for weeks. Photographing the clientele. Running plates. Building a case that looked like conspiracy theory masquerading as police work. But the threads kept leading back there, to that dimly lit hole with its old maps and faded photographs. To whatever happened in the back room she'd glimpsed through a closing door. The suspect vaulted a railing and dropped into the stairwell of a closed Tube entrance. Quinn skidded to a stop at the top, rain streaming down her face. "Police! Stop!" Her voice echoed off the tiled walls below. No response. No footsteps either—he'd stopped somewhere in that darkness. She drew her service weapon, the grip slick in her wet palm. Standard procedure said wait for backup. Call it in. Secure the perimeter. Standard procedure hadn't saved Morris. Quinn descended. The emergency lighting cast everything in a sickly amber glow. Abandoned posters for West End shows peeled from the walls like dead skin. The ticket barriers stood open, their sensors long dead, and beyond them the escalators descended into absolute blackness. A sound reached her. Not footsteps—something else. A low hum, almost musical, rising from deep underground. She advanced to the escalator's edge. Her phone's torch cut a pale beam into the darkness below, illuminating nothing but dust motes and graffiti. The hum grew louder. Then she saw it. A soft green glow, far below, like foxfire in a forest. Moving. Quinn took the frozen steps two at a time, one hand on the rubber rail, the other keeping her weapon trained downward. The hum resolved into voices—dozens of them, maybe hundreds, the sound of a crowd engaged in commerce and argument and laughter. She emerged onto the platform level and stopped breathing. The abandoned station had transformed. Where there should have been empty tracks and dead signal lights, there stretched a sprawling marketplace that defied the architecture she'd memorized from decades-old blueprints. Stalls and tents crowded every surface, draped in fabrics that seemed to absorb and emit light simultaneously. Lanterns hung from nothing, suspended in air, casting shadows that moved independently of their sources. Crowds moved between the vendors—and Quinn's trained eye, her eighteen years of reading people on London's streets, told her immediately that not all of them were people. A woman with too many joints in her fingers haggled over a jar of something luminous. A man with no reflection in the wet stone floor counted out coins that clinked like bone on bone. Two children who hadn't aged in their photographs since 1952 darted between adult legs, laughing. The Veil Market. She'd heard the name whispered in interrogation rooms, seen it scrawled in case files that disappeared from the system before she could copy them. A myth. A ghost story that criminals told each other. Her suspect had vanished into its depths. Quinn pressed her back against the tiled wall at the platform's edge, her heart slamming against her ribs. Every instinct she'd honed over two decades screamed at her to retreat, to climb back up those frozen escalators and pretend she'd never seen this place. She was alone, armed with nothing but a standard-issue Glock and a warrant card that meant absolutely nothing here. But somewhere in that impossible bazaar walked a man who knew something about the symbols in the Deptford warehouse. About the gaps in the case files. About what had really killed her partner while she waited in the car outside, too slow to save him. A vendor near the platform's edge turned to look at her. His eyes were the yellow of old newspaper, his smile full of teeth that were definitely not human. "First time at market, detective?" His voice carried an accent she couldn't place—something old, something that made the words feel like they were being translated from a language that predated English. "That's a good watch you're wearing. Real leather. Worn thin at the buckle. Sentimental value, yes?" Quinn's hand went to her wrist instinctively. The watch had been Morris's. She'd taken it from his belongings after the funeral, when his widow hadn't wanted anything that reminded her of the job. "I'm looking for someone." "Everyone here is looking for someone. Or something." The vendor's yellow eyes flicked to her weapon. "That won't help you here. Bullets go strange in the market. Sometimes they remember to be bullets. Sometimes they forget." "I'm a police officer." "You're a tourist." He laughed, a sound like dry leaves scraping stone. "The man you chase, he has a bone token. Do you have one? No? Then you're not supposed to be here. The market doesn't like gatecrashers." As if in response, the crowd nearest Quinn shifted. Faces turned toward her—curious, hostile, hungry. She counted six, eight, a dozen gazes fixed on her position. The hum of commerce had dimmed. "How much for safe passage?" The vendor's smile widened. "Ah. Quick learner. Most surface police, they start shooting. Makes such a mess." He held out a palm covered in scales that caught the foxfire light. "The watch. One hour of safe passage. Fair trade?" Quinn looked at the worn leather strap, at the face that still kept perfect time despite everything. Morris had worn this watch for fifteen years. Had glanced at it in her passenger seat a thousand times, complaining about traffic or celebrating early finishes. It was the last physical thing she had of him that mattered. Her suspect was getting further away with every second she hesitated. "Thirty minutes," she said. "And you tell me which direction he went." The vendor's scales rippled with what might have been pleasure. "Done." She unclasped the watch, her fingers numb. The leather was warm from her skin. She placed it in that inhuman palm and watched it disappear into the folds of the vendor's robe. "The bone merchant's stall, fourth row back, near the singing fountain. Your man stopped there. Bought something small, something that fits in a pocket." The yellow eyes met hers. "Thirty minutes, detective. When the time is up, the market will know you don't belong. I would not recommend being here when that happens." Quinn holstered her weapon—useless anyway, apparently—and stepped off the platform into the crowd. The market swallowed her immediately. Bodies pressed close, not all of them warm, not all of them breathing. The stalls on either side offered merchandise she couldn't identify: jars of captured sound, maps that showed places that didn't exist, knives with blades that cut only specific emotions. A woman tried to sell her a memory of a summer day in 1847. A child offered dreams still wet from someone else's sleep. She pushed through, counting rows. First. Second. Third. The singing fountain announced itself before she saw it—a basin of mercury that hummed in harmonies that made her teeth ache. Fourth row. The bone merchant's stall was a table of polished white arranged in patterns she didn't want to understand. The merchant himself was ancient, wrapped in gray cloth, his face hidden except for a single eye that tracked her approach. "Police," he said. Not a question. "A man came through here. Thirty years old, dark hoodie, running. What did he buy?" "Many men come through here. Many men run." The single eye blinked. "You have no token. You have no standing. Why should I tell you anything?" "Because I paid for thirty minutes, and I'm using them to ask nicely." Quinn leaned forward, her hands flat on the edge of the bone table. "The man I'm chasing was at a bar called The Raven's Nest tonight. He was in the back room. Whatever happens in that back room, whatever they discuss, whatever they trade—it's connected to a case I've been working for three years. A dead officer. My partner." Something shifted in that single eye. "Morris. DS Jacob Morris." Quinn's blood went cold. "You knew him." "He came to the market, once. Asking questions like you're asking now. Looking for answers about the symbols. The old bindings." The bone merchant's voice dropped. "He found answers. Answers found him back." "Who killed him?" "Not who. What." The merchant's wrapped hand emerged from his robe, pointing deeper into the market, toward a section where the lights grew dim and the crowds thinned. "Your running man, he bought a ward. Protection against what killed your partner. He's going to the back of the market, where the serious dealings happen. Where the things that don't like questions wait for people who ask too many." Quinn looked into the darkness beyond the fourth row. Her thirty minutes were ticking away. Her weapon was useless. She had no backup, no authority, no understanding of the rules that governed this place. But somewhere in that darkness was the truth about what had killed Morris. About the symbols that had faded before forensics arrived. About the three years of fragments and whispers that had led her to this moment. She straightened, adjusted her empty wrist where the watch used to sit, and walked into the dark.
created_at"2026-02-19T12:45:10.069Z" 2/19/2026, 12:45:10 PM
model"anthropic/claude-4.5-opus-20251124"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1352
moderation_latency(null)
generation_time62837
tokens_prompt1140
tokens_completion2670
native_tokens_prompt1125
native_tokens_completion2367
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)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.0648
router(null)
provider_responses
0
endpoint_id"be883404-eb42-4b2d-b6e4-c7daa3aa8d62"
id"msg_01T8Wd6hTWQSwccEEnwDyPcs"
is_byokfalse
latency1352
model_permaslug"anthropic/claude-4.5-opus-20251124"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771505110-n13PcyeMIf31UhZgZ81L"
upstream_id"msg_01T8Wd6hTWQSwccEEnwDyPcs"
total_cost0.0648
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags11
adverbTagCount0
adverbTags(empty)
dialogueSentences30
tagDensity0.367
leniency0.733
rawRatio0
effectiveRatio0
97.10% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1725
totalAiIsmAdverbs1
found
0
adverb"really"
count1
highlights
0"really"
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)
65.22% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1725
totalAiIsms12
found
0
word"streaming"
count1
1
word"echoed"
count1
2
word"footsteps"
count2
3
word"standard"
count3
4
word"resolved"
count1
5
word"depths"
count1
6
word"absolutely"
count1
7
word"flicked"
count1
8
word"perfect"
count1
highlights
0"streaming"
1"echoed"
2"footsteps"
3"standard"
4"resolved"
5"depths"
6"absolutely"
7"flicked"
8"perfect"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"blood ran cold"
count1
highlights
0"blood went cold"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences122
matches(empty)
96.02% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount2
narrationSentences122
filterMatches
0"watch"
1"feel"
hedgeMatches
0"seemed to"
1"tried to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences141
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen47
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1711
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions17
unquotedAttributions0
matches(empty)
91.13% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions40
wordCount1359
uniqueNames19
maxNameDensity1.18
worstName"Quinn"
maxWindowNameDensity2
worstWindowName"Quinn"
discoveredNames
Soho1
Harlow1
Quinn16
Greek1
Street2
November1
Morris5
Deptford2
Bateman1
Raven1
Nest1
Tube1
West1
End1
London1
Veil1
Market1
Glock1
English1
persons
0"Harlow"
1"Quinn"
2"Morris"
3"English"
places
0"Soho"
1"Greek"
2"Street"
3"November"
4"Deptford"
5"Bateman"
6"Raven"
7"West"
8"End"
9"London"
globalScore0.911
windowScore1
63.79% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences87
glossingSentenceCount3
matches
0"looked like conspiracy theory masqueradin"
1"fabrics that seemed to absorb and emit light simultaneously"
2"seless anyway, apparently—and stepped off the"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1711
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences141
matches
0"watching that bar"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs55
mean31.11
std20.98
cv0.675
sampleLengths
043
144
266
356
456
528
62
718
824
95
102
1141
1216
1328
1416
1543
169
1762
1877
1937
207
2163
2245
2329
2447
2533
264
2736
284
2938
3032
315
3239
3355
3411
3512
3611
3732
3853
3913
4071
4131
4239
436
4415
4526
4672
4710
487
4933
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences122
matches
0"being translated"
86.04% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs234
matches
0"was chasing"
1"was coming"
2"was getting"
3"were ticking"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount11
semicolonCount0
flaggedSentences9
totalSentences141
ratio0.064
matches
0"The man—if he was a man—had been at The Raven's Nest fifteen minutes ago, slipping out the back the moment she'd walked through the front door."
1"No footsteps either—he'd stopped somewhere in that darkness."
2"Not footsteps—something else."
3"The hum resolved into voices—dozens of them, maybe hundreds, the sound of a crowd engaged in commerce and argument and laughter."
4"Crowds moved between the vendors—and Quinn's trained eye, her eighteen years of reading people on London's streets, told her immediately that not all of them were people."
5"\"First time at market, detective?\" His voice carried an accent she couldn't place—something old, something that made the words feel like they were being translated from a language that predated English."
6"Faces turned toward her—curious, hostile, hungry."
7"Quinn holstered her weapon—useless anyway, apparently—and stepped off the platform into the crowd."
8"The singing fountain announced itself before she saw it—a basin of mercury that hummed in harmonies that made her teeth ache."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1372
adjectiveStacks0
stackExamples(empty)
adverbCount34
adverbRatio0.02478134110787172
lyAdverbCount13
lyAdverbRatio0.009475218658892129
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences141
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences141
mean12.13
std8.77
cv0.723
sampleLengths
016
127
218
39
42
54
611
72
833
97
103
1121
127
1317
1426
156
167
173
182
1912
2019
2113
2215
2313
242
258
262
278
2812
296
303
313
325
332
3410
3513
3618
374
383
399
406
4118
424
434
4411
451
4622
4721
489
495
58.39% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats11
diversityRatio0.3971631205673759
totalSentences141
uniqueOpeners56
30.58% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences109
matches
0"Then she saw it."
ratio0.009
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount25
totalSentences109
matches
0"She'd seen the symbols painted"
1"She'd been watching that bar"
2"Her voice echoed off the"
3"She drew her service weapon,"
4"She advanced to the escalator's"
5"Her phone's torch cut a"
6"She emerged onto the platform"
7"She'd heard the name whispered"
8"Her suspect had vanished into"
9"She was alone, armed with"
10"His eyes were the yellow"
11"His voice carried an accent"
12"She'd taken it from his"
13"He laughed, a sound like"
14"She counted six, eight, a"
15"He held out a palm"
16"It was the last physical"
17"Her suspect was getting further"
18"She unclasped the watch, her"
19"She placed it in that"
ratio0.229
88.44% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount81
totalSentences109
matches
0"The rain hammered down on"
1"Detective Harlow Quinn's boots slapped"
2"Quinn's fingers twitched toward her"
3"The official report called it"
4"Quinn knew better."
5"She'd seen the symbols painted"
6"The suspect ducked left into"
7"Quinn pushed harder, her lungs"
8"The man—if he was a"
9"She'd been watching that bar"
10"The suspect vaulted a railing"
11"Quinn skidded to a stop"
12"Her voice echoed off the"
13"She drew her service weapon,"
14"The emergency lighting cast everything"
15"The ticket barriers stood open,"
16"A sound reached her."
17"A low hum, almost musical,"
18"She advanced to the escalator's"
19"Her phone's torch cut a"
ratio0.743
91.74% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences109
matches
0"To whatever happened in the"
1"As if in response, the"
ratio0.018
40.82% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences56
technicalSentenceCount8
matches
0"Quinn pushed harder, her lungs burning, her worn leather watch slapping against her wrist with each stride."
1"Building a case that looked like conspiracy theory masquerading as police work."
2"Where there should have been empty tracks and dead signal lights, there stretched a sprawling marketplace that defied the architecture she'd memorized from deca…"
3"She was alone, armed with nothing but a standard-issue Glock and a warrant card that meant absolutely nothing here."
4"But somewhere in that impossible bazaar walked a man who knew something about the symbols in the Deptford warehouse."
5"His eyes were the yellow of old newspaper, his smile full of teeth that were definitely not human."
6"She'd taken it from his belongings after the funeral, when his widow hadn't wanted anything that reminded her of the job."
7"The singing fountain announced itself before she saw it—a basin of mercury that hummed in harmonies that made her teeth ache."
34.09% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags11
uselessAdditionCount2
matches
0"He laughed, a sound like dry leaves scraping stone"
1"Quinn leaned, her hands flat on the edge of the bone table"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags3
fancyCount1
fancyTags
0"He laughed (laugh)"
dialogueSentences30
tagDensity0.1
leniency0.2
rawRatio0.333
effectiveRatio0.067
84.7789%