Run: 2026-09-03-01M1K5BPVVY19YZV17GR1SV4YS

Run Details

Duration:
30.8s
Cost:
$0.013007
Provider:
Meta

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 turned Greek Street into a slick black mirror. Detective Harlow Quinn ran through it without breaking stride, her boots striking puddles and throwing up cold spray that soaked the cuffs of her trousers. Ahead, the kid in the dark hoodie vaulted a stack of milk crates outside a shuttered kebab shop and kept going, head down, shoulders hunched against the weather. He was fast. Faster than she had expected. "Stop! Police!" Her voice cut through the hiss of tires on wet asphalt. He didn't stop. He glanced back once and Quinn caught the white flash of his face in the streetlight, young, terrified, and then he was moving again, cutting left through a narrow mews between buildings. Quinn followed. Rain hammered the crown of her head and ran down her closely cropped salt-and-pepper hair, dripping from the sharp line of her jaw. She breathed in a controlled rhythm, arms pumping, every movement economical, military precision even at a dead sprint after eighteen years on the job. Her left wrist felt heavy, the worn leather watch there sodden and ticking loud against her pulse. She knew this street. She'd walked it a dozen times on surveillance. The distinctive green neon sign of The Raven's Nest bled color down the wet bricks above her, that sickly beautiful green humming against the rain. Silas' bar. The Nest. On any other night she'd have been inside, pretending to drink while she watched the hidden door behind the bookshelf, the one that led to the back room where the clique held their clandestine meetings. The walls in there were covered with old maps and black-and-white photographs, all of them lies covering up what really happened in those rooms. She suspected they were involved. She knew it, in the way you know a bad joint before it gives out. The kid ran past the Raven without looking at it, which told her he wasn't one of Silas' regulars. Too young, too frantic. But he'd come from that direction. She'd tailed him from the corner of Old Compton after she'd seen the exchange - a small thing, bone-pale, passing from his palm to another man's for a roll of cash that disappeared too quickly. A bone token. Quinn had heard about them from an informant and from the file she wasn't supposed to have, the one with DS Morris's name on it. Three years ago Morris had gone into an alley after a runner and never come out the same way. Officially, cardiac event. Unofficially, the things he'd described on the radio in the last thirty seconds before he went silent didn't belong in any Metropolitan Police report. She had never stopped seeing the way his body had looked afterwards, untouched and wrong. The kid skidded around the corner onto Charing Cross Road, nearly colliding with a night bus. Horns blared. Quinn shouted again and cut the distance, her five-nine frame leaning into the turn, brown eyes fixed and unblinking through the rain. He wasn't going to outrun her on the street. He knew it too. So he did what runners always do when they're cornered above ground. He went down. He hit the mouth of Tottenham Court Road station at full speed, shoved through a service door that should have been locked but wasn't, and vanished into the dark stairwell beyond. The door clanged shut behind him on a hydraulic arm. Quinn hit the door half a second later and caught it before it sealed. Cold air breathed out from the concrete throat below, carrying the smell of wet stone, ozone, and diesel. Far below, fluorescent lights buzzed. No Tube ran here after the last train. This spur had been abandoned since the seventies, sealed off and left to rot beneath Camden, at least according to the transport maps. HerInformant had told her different. He'd said the Veil Market lived down here when the moon was right, an underground market that sold enchanted goods and banned alchemical substances and information you couldn't get anywhere else, and that it moved locations every full moon so the regular police never found it. Tonight the moon was full. She could see its pale smear behind the clouds even through the rain. She eased the door open with her shoulder and took the stairs two at a time, hand skimming the damp rail, leather watch scraping concrete. Her shoes squeaked on the tile. She counted doors as she went, listening for footsteps. One flight down. Two. The air got colder. The thin London rain gave way to a deeper wet, the weeping of underground walls. At the bottom she found a landing and a heavy iron gate set into the tiled wall where no gate should be. It was old, Victorian, its bars sweating condensation. Beyond it a tunnel stretched into darkness, lit every twenty feet by bare bulbs strung on wire. The abandoned Tube station. The kid was at the gate. He fumbled in his pocket with shaking hands and pulled out that pale thing again. Even from ten feet away Quinn could see it was a bone token, carved smooth, no larger than a coin, a tiny hole drilled through its center. He pressed it against the iron. The metal shivered. The gate didn't swing open. It dissolved. The bars rippled like water and then were gone, leaving an archway that hummed faintly. Beyond it, sound leaked out - voices, low and overlapping, the clink of glass, a vendor shouting prices in a language that wasn't quite English, the smell of incense and fried meat and something metallic and sweet that made her throat close. The Veil Market. Hidden, impossible, alive beneath Camden. The kid slipped through. Quinn was already moving. She reached the arch just as the iron began to bleed back into solidity. She got her hand up and the bars re-formed around her wrist, cold iron kissing skin before shuddering back into that liquid state. She yanked her arm free and stumbled through to the other side as the gate sealed behind her with a soft, final thud, like a mouth closing. The market swallowed sound. It was an old platform, vaulted and long, the tracks on either side filled in with stalls and tables made of scaffolding and reclaimed doors. Strings of mismatched lights hung from the arched ceiling. Tarps fluttered. There were people, or things shaped like people, moving between stalls that sold jars of glowing powder and knives that hummed and folded sheets of paper covered in sigils. A woman with antlers sold wrapped bundles that twitched. A man with no eyes sat counting teeth. No one looked surprised to see a detective in a wet Met jacket standing on the threshold breathing hard. No one except the kid, who froze halfway down the platform and stared at her with pure disbelief. "You can't be in here," he hissed. His warm brown eyes were wide. Rain still dripped from the hood of his jacket. "You don't have a token." Quinn kept her eyes on him but took in everything else in her peripheral vision, the way she had been trained. Exits were limited. The only way back was the gate, and she didn't have a token to reopen it. Her radio was dead stone this far down. No backup. No line to the surface. For a second Morris's face surfaced in her memory, not as he was on the last day but as he was in the photo on her desk, grinning with his arm around her shoulders at her promotion dinner. Eighteen years and she had never lost anyone before him. The case notes had said unexplained circumstances. She now understood that was shorthand for we don't have a word for what killed him. The kid backed away toward a stall hung with dark coats. Beyond him, between two stalls, was a service tunnel that dropped deeper into black. If he reached it, she'd lose him. She could turn back. Pound on the iron until someone took pity or until it opened on its own cycle. Go back up the wet stairs and call it in, wait for a team, do it by the book the way the brass wanted. Military precision meant knowing when to hold ground as much as when to advance. Or she could follow him into the market proper, into unfamiliar and potentially dangerous territory with no token, no warrant, and no idea what the rules were down here, where Metropolitan law meant nothing and the things that had taken Morris waited under different names. The kid made his choice for her. He bolted. Quinn swore under her breath, checked the strap on her watch by habit, and ran. She hit the market at speed, shouldering past a stall where bottles rattled, boots slapping on the slick platform tiles. The air was thick now, too warm, too close. Her sharp jaw was set, rain still running down her neck inside her collar, brown eyes locked on the back of that hoodie as it disappeared between the stalls toward the dark tunnel. Behind her the iron gate stood solid again, and somewhere to her left a vendor laughed, a low sound without humor, as the detective who had followed a suspect into the earth vanished from the street level world and became just another lost thing in the Veil Market's crowd. "Stop!" she shouted again, but this time the market swallowed the word whole, and the only answer was the clatter of her own footsteps chasing him down into the light.
created_at"2026-09-03T08:14:57.921Z" 9/3/2026, 8:14:57 AM
model"meta/muse-spark-1.2-20260805"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3514
moderation_latency(null)
generation_time30745
tokens_prompt888
tokens_completion2324
native_tokens_prompt814
native_tokens_completion2821
native_tokens_completion_images0
native_tokens_reasoning822
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"completed"
service_tier"auto"
usage0.01300675
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
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request_id"req-1788423297-LHuzSxY7ElpplxC8DPfl"
session_id(null)
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api_type"completions"
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upstream_id"resp_6a992c8203baf12802b24e8d"
provider_responses
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endpoint_id"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id"resp_6a992c8203baf12802b24e8d"
is_byokfalse
latency370
model_permaslug"meta/muse-spark-1.2-20260805"
provider_name"Meta"
status200
total_cost0.01300675
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags3
adverbTagCount1
adverbTags
0"she shouted again [again]"
dialogueSentences4
tagDensity0.75
leniency1
rawRatio0.333
effectiveRatio0.333
93.73% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1594
totalAiIsmAdverbs2
found
0
adverb"really"
count1
1
adverb"quickly"
count1
highlights
0"really"
1"quickly"
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)
81.18% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1594
totalAiIsms6
found
0
word"pumping"
count1
1
word"pulse"
count1
2
word"clandestine"
count1
3
word"footsteps"
count2
4
word"fluttered"
count1
highlights
0"pumping"
1"pulse"
2"clandestine"
3"footsteps"
4"fluttered"
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
emotionTells1
narrationSentences113
matches
0"looked surprised"
67.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount4
hedgeCount2
narrationSentences113
filterMatches
0"watch"
1"know"
hedgeMatches
0"appeared to"
1"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences115
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen49
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1596
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions6
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions46
wordCount1579
uniqueNames24
maxNameDensity0.63
worstName"Quinn"
maxWindowNameDensity1.5
worstWindowName"Quinn"
discoveredNames
Greek1
Street1
Harlow1
Quinn10
Raven2
Nest2
Old1
Compton1
Morris4
Metropolitan2
Police1
Charing1
Cross1
Road2
Tottenham1
Court1
Tube2
Camden2
Veil3
Market3
London1
Victorian1
English1
Met1
persons
0"Harlow"
1"Quinn"
2"Raven"
3"Nest"
4"Morris"
5"Police"
6"Tube"
7"Market"
places
0"Greek"
1"Street"
2"Compton"
3"Charing"
4"Cross"
5"Road"
6"Tottenham"
7"Court"
8"Veil"
9"London"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences78
glossingSentenceCount1
matches
0"quite English, the smell of incense and fried meat and something metallic and sweet that made her throat close"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.627
wordCount1596
matches
0"not as he was on the last day but as he was in the photo on her desk, grinning with his arm ar"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences115
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs36
mean44.33
std32.48
cv0.733
sampleLengths
011
161
213
335
466
512
6108
764
83
986
1040
1128
1241
13119
1418
1563
1651
176
1851
1964
208
214
2268
234
24101
2518
2627
2755
2871
2932
3058
3145
329
3315
34111
3530
89.74% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences113
matches
0"cornered"
1"been locked"
2"been abandoned"
3"were gone"
4"been trained"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs266
matches
0"wasn't going"
1"was already moving"
93.17% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount2
semicolonCount0
flaggedSentences2
totalSentences115
ratio0.017
matches
0"She'd tailed him from the corner of Old Compton after she'd seen the exchange - a small thing, bone-pale, passing from his palm to another man's for a roll of cash that disappeared too quickly."
1"Beyond it, sound leaked out - voices, low and overlapping, the clink of glass, a vendor shouting prices in a language that wasn't quite English, the smell of incense and fried meat and something metallic and sweet that made her throat close."
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount229
adjectiveStacks1
stackExamples
0"sickly beautiful green humming"
adverbCount5
adverbRatio0.021834061135371178
lyAdverbCount2
lyAdverbRatio0.008733624454148471
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences115
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences115
mean13.88
std11.03
cv0.795
sampleLengths
011
125
228
33
45
513
63
732
82
923
1024
1117
124
138
1425
152
162
1735
1824
195
2015
2119
224
236
2435
253
2625
2719
283
2924
3015
3116
322
3322
349
354
3612
373
3831
3910
4014
4118
425
438
4423
455
4646
475
4813
4925
55.94% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats14
diversityRatio0.40869565217391307
totalSentences115
uniqueOpeners47
96.15% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences104
matches
0"Too young, too frantic."
1"Officially, cardiac event."
2"Unofficially, the things he'd described"
ratio0.029
85.38% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount35
totalSentences104
matches
0"He was fast."
1"Her voice cut through the"
2"He didn't stop."
3"He glanced back once and"
4"She breathed in a controlled"
5"Her left wrist felt heavy,"
6"She knew this street."
7"She'd walked it a dozen"
8"She suspected they were involved."
9"She knew it, in the"
10"She'd tailed him from the"
11"She had never stopped seeing"
12"He wasn't going to outrun"
13"He knew it too."
14"He went down."
15"He hit the mouth of"
16"He'd said the Veil Market"
17"She could see its pale"
18"She eased the door open"
19"Her shoes squeaked on the"
ratio0.337
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount72
totalSentences104
matches
0"The rain had turned Greek"
1"Detective Harlow Quinn ran through"
2"He was fast."
3"Her voice cut through the"
4"He didn't stop."
5"He glanced back once and"
6"She breathed in a controlled"
7"Her left wrist felt heavy,"
8"She knew this street."
9"She'd walked it a dozen"
10"The distinctive green neon sign"
11"The walls in there were"
12"She suspected they were involved."
13"She knew it, in the"
14"The kid ran past the"
15"She'd tailed him from the"
16"A bone token."
17"Quinn had heard about them"
18"She had never stopped seeing"
19"The kid skidded around the"
ratio0.692
96.15% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences104
matches
0"Even from ten feet away"
1"If he reached it, she'd"
ratio0.019
53.57% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences56
technicalSentenceCount7
matches
0"Detective Harlow Quinn ran through it without breaking stride, her boots striking puddles and throwing up cold spray that soaked the cuffs of her trousers."
1"She'd tailed him from the corner of Old Compton after she'd seen the exchange - a small thing, bone-pale, passing from his palm to another man's for a roll of c…"
2"He hit the mouth of Tottenham Court Road station at full speed, shoved through a service door that should have been locked but wasn't, and vanished into the dar…"
3"He'd said the Veil Market lived down here when the moon was right, an underground market that sold enchanted goods and banned alchemical substances and informat…"
4"Beyond it, sound leaked out - voices, low and overlapping, the clink of glass, a vendor shouting prices in a language that wasn't quite English, the smell of in…"
5"Or she could follow him into the market proper, into unfamiliar and potentially dangerous territory with no token, no warrant, and no idea what the rules were d…"
6"Behind her the iron gate stood solid again, and somewhere to her left a vendor laughed, a low sound without humor, as the detective who had followed a suspect i…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags3
uselessAdditionCount0
matches(empty)
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount2
fancyTags
0"he hissed (hiss)"
1"she shouted again (shout)"
dialogueSentences4
tagDensity0.5
leniency1
rawRatio1
effectiveRatio1
86.8674%