Run: 2026-05-01-01KQHR75NE229TDEH5CAK8TKN9

Run Details

Duration:
51.5s
Cost:
$0.012295
Provider:
xAI

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 came down in sheets, slicing through the sodium glow of Soho’s streetlamps and turning every pavement into a treacherous mirror. Detective Harlow Quinn kept her stride tight, military precision cutting through the downpour despite the way her soaked coat clung to her shoulders. Her closely cropped salt-and-pepper hair was plastered to her skull, water streaming off the sharp line of her jaw. The worn leather watch on her left wrist had fogged over hours ago, but she didn’t need it to know how deep into the night she had already fallen. Three hours tailing shadows outside The Raven’s Nest, watching that distinctive green neon buzz above the entrance like a warning no one ever heeded. Then Tomás Herrera had slipped out the side door, shoulders hunched, and everything had snapped into motion. She had recognized him instantly: the short curly dark brown hair, the olive skin, the Saint Christopher medallion that bounced against his collarbone when he ran. Former paramedic. Current supplier of off-the-books miracles to the kind of people Quinn had spent eighteen years trying to put away. She suspected he was running medical supplies for the clique tonight. And where the clique went, unnatural death followed. Just like it had followed DS Morris three years earlier. “Police!” she barked, voice raw against the rain. “Herrera, stop!” He didn’t. He bolted east along Old Compton Street, trainers slapping through puddles that exploded like gunfire. Quinn gave chase, lungs already burning from the sudden sprint. The streets were still busy enough that civilians scattered, umbrellas tilting like startled birds. A taxi horn blared as Herrera cut across the road without looking. Quinn followed, boots skidding on wet asphalt, nearly losing her balance before her training righted her. She kept her eyes fixed on the scar she knew ran along his left forearm, hidden now beneath a sodden sleeve. That scar had come from a knife fight outside a supernatural betting den last year. She had the file memorized. The chase carved a jagged line north. They burst out of Soho into the wider chaos of Oxford Street, then veered toward the darker arteries that fed into Camden. Rain hammered harder here, wind funnelling between buildings and driving needles into her eyes. Her breath sawed in and out, but she refused to slow. Every splash of her footfalls felt like a countdown. Morris had chased something just like this. He’d gone alone into an abandoned warehouse in Limehouse and never come out the same. The coroner called it “unexplained circumstances.” Quinn called it murder by things that should not exist. She wasn’t about to let another trail go cold. Herrera’s pace never faltered. He ran like a man who knew exactly where safety lay, glancing back once as they crossed into the tangle of Camden High Street. Their eyes met across twenty metres of rain and headlights. His warm brown gaze held no fear, only grim calculation. Then he ducked left into a narrow alley between a closed vinyl shop and a shuttered tattoo parlour. Quinn followed, shoulder clipping the brick hard enough to send a jolt through her collarbone. The alley stank of piss and rotting cardboard. At the far end, a rusted maintenance door yawned open just enough for a man to slip through. She drew her baton, not her firearm. Not yet. The last thing she needed was paperwork explaining why she had discharged her weapon in an underground black market she wasn’t even supposed to know existed. Because she did know. Whispers in the supernatural cases unit. The Veil Market. It moved every full moon, currently squatting in the bones of an abandoned Tube station beneath Camden. You needed a bone token to enter. She had none. What she did have was eighteen years of watching colleagues die from things that laughed at search warrants. The door led to concrete stairs descending into blackness. She took them two at a time, free hand skating along a damp railing. The temperature dropped ten degrees in as many steps. The rain noise faded behind her, replaced by a low, constant thrum like a heartbeat coming up through the soles of her boots. Emergency lights flickered at long intervals, casting everything in sickly amber. Her shadow jerked ahead of her, distorted and threatening. At the bottom, another door—this one heavier, iron-bound, etched with symbols that hurt to look at directly. It stood ajar. Quinn paused, chest heaving. The rational part of her brain, the part that had earned her commendations and a reputation for icy calm, screamed at her to call for backup. To seal the entrance and wait for armed response. But backup would take thirty minutes, and by then Herrera would have vanished into the warren of stalls, trading his Saint Christopher medallion for some new alias and a fresh supply of alchemical coagulants or memory wipes or whatever the clique needed this week. She thought of Morris again. The way his last transmission had dissolved into static and something that sounded like wings. The way his body, when they finally found it, had been marked with burns that matched no known heat source. She tightened her grip on the baton until the rubber groaned. “Fuck it,” she whispered, and stepped through. The Veil Market unfolded like a fever dream carved into Victorian tile and rusted girders. The old platform had been widened, scaffolding and canvas stalls turning the tunnel into a labyrinth. Greenish phosphor lamps hung from the curved ceiling, their light crawling across wet brick and the faces of people who were not entirely people. The air tasted of ozone, incense, and something metallic that coated the back of her throat. Vendors shouted in languages that twisted between English and sounds no human larynx should make. One stall offered glowing vials of banned alchemical substances that swirled like captive galaxies. Another displayed weapons forged from moonlight and regret. A third simply read INFORMATION in neat, blood-red script above a curtain that never stopped moving. Quinn moved sideways, back pressed to the curve of the tunnel wall, eyes scanning for curly dark hair and a silver medallion. Her own presence registered like a stone dropped into still water. Heads turned. Conversations faltered. She was clearly a cop; the rain still dripped from her coat in steady beats, and the baton was still in her hand. But no one challenged her yet. The market operated on its own laws, and those laws respected only power and payment. She had neither. A hunched figure wrapped in what looked like living shadow offered her a bone token for “a small favor later.” Quinn ignored it and kept moving deeper. The platform edge had been converted into a thoroughfare; beyond it, the rails had been torn up to make room for more stalls. Strange music drifted from somewhere ahead—strings and a low, rhythmic chanting that made her teeth ache. Her watch had stopped. Of course it had. She caught a flash of movement thirty metres ahead: Herrera slipping between a stall selling maps that redrew themselves and another peddling fresh nightmares in glass jars. He moved with the easy confidence of a man on home ground, nodding to a vendor who tossed him a small leather pouch without breaking stride. Quinn broke into a run again, shoulder-checking a tall woman whose eyes flashed reflective like a cat’s. The woman hissed but didn’t pursue. “Herrera!” she shouted. The name echoed off the arched ceiling and came back distorted, as though the market itself were mocking her. He looked back once more. This time there was something like pity in his expression. Then he vaulted a low table laden with enchanted rings and disappeared behind a bookshelf that stood in the middle of the tunnel for no architectural reason Quinn could see. She remembered the similar mechanism at The Raven’s Nest. These people loved their hidden doors. She reached the bookshelf seconds later. It was heavy oak, filled with grimoires and ledgers bound in what she suspected was not leather. One of the books had eyes. She shoved the entire structure sideways, muscles burning, and it swung open on silent hinges to reveal a narrower service tunnel beyond. The air here was warmer, almost humid, and carried the copper tang of blood. Her boots rang on metal grating. Pipes ran along the walls, sweating condensation. Further ahead, she heard footsteps—fast, retreating. She followed, breath ragged now, the earlier sprint through rain-soaked streets catching up with her. The tunnel branched. She chose the left passage because it smelled faintly of the antiseptic Herrera would have used when he still had a license. The choice felt instinctive, almost supernatural itself, and that frightened her more than the market had. The passage opened into a small chamber that had once been a maintenance room. Crates stamped with arcane symbols were stacked against one wall. In the center, Tomás Herrera stood with his hands slightly raised, the scar on his forearm clearly visible now that his sleeve had ridden up. The Saint Christopher medallion caught the weak light and held it. “You shouldn’t be here, Detective Quinn,” he said. His voice carried the faint trace of Seville, softened by years in London. It was calmer than it had any right to be. “This place doesn’t forgive intrusion.” Quinn leveled the baton, though she knew how inadequate it looked against whatever wards or creatures the market might spit out in defense of one of its own. Rainwater still dripped from her chin onto the concrete floor in steady plinks. Her brown eyes never left his warm ones. “Three years ago my partner went after your people,” she said. “He didn’t come back the same. You’re going to tell me why. Right now.” Herrera’s gaze flicked to the doorway behind her. A shadow passed there—something tall, jointed wrong. Quinn felt the temperature drop again. The market was aware of her. It was deciding. “I’m not the one who can give you those answers,” he said quietly. “But I can get you out alive if you turn around now. The clique isn’t what you think. And Morris… he saw too much. Like you’re seeing now.” She took one step closer. The decision hung between them, sharper than any blade. Follow him deeper, demand truth from a man who mended monsters, risk becoming another statistic in “unexplained circumstances.” Or walk away, pretend the Veil Market was just another rumor, go back to her desk and the cold cases that had started to look like mercy. Behind her, the bookshelf door clicked shut on its own. Quinn’s grip on the baton steadied. Her jaw tightened until it ached. “I’m not leaving without answers,” she said. Herrera exhaled, almost regretful, and the medallion at his throat caught the light one last time as he turned toward a second, narrower passage that hadn’t been there a moment earlier. “Then try to keep up,” he told her. “And whatever you do, don’t accept any offers. Not even water.” The tunnel swallowed them both, the market’s heartbeat growing louder, the rain above now impossibly distant. Quinn followed, every sense screaming that she had just crossed a line there would be no returning from. But Morris’s ghost walked with her, and for the first time in three years it felt like forward momentum instead of mourning. She didn’t look back.
created_at"2026-05-01T12:29:05.075Z" 5/1/2026, 12:29:05 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency25997
moderation_latency(null)
generation_time51310
tokens_prompt914
tokens_completion3873
native_tokens_prompt907
native_tokens_completion4841
native_tokens_completion_images(null)
native_tokens_reasoning2566
native_tokens_cached896
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"
usage0.01229545
router(null)
provider_responses
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endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
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is_byokfalse
latency61
model_permaslug"x-ai/grok-4.20-20260309"
provider_name"xAI"
status200
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http_referer(null)
request_id"req-1777638545-bVBMda4DQBxokG5NhnGk"
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api_type"completions"
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upstream_id"bb598f0b-e7dd-9af4-9fe2-1db2de663854"
total_cost0.01229545
cache_discount0.0009408
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Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags11
adverbTagCount1
adverbTags
0"he said quietly [quietly]"
dialogueSentences16
tagDensity0.688
leniency1
rawRatio0.091
effectiveRatio0.091
97.37% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1899
totalAiIsmAdverbs1
found
0
adverb"slightly"
count1
highlights
0"slightly"
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)
71.04% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1899
totalAiIsms11
found
0
word"treacherous"
count1
1
word"streaming"
count1
2
word"the last thing"
count1
3
word"flickered"
count1
4
word"etched"
count1
5
word"scanning"
count1
6
word"rhythmic"
count1
7
word"echoed"
count1
8
word"structure"
count1
9
word"footsteps"
count1
10
word"flicked"
count1
highlights
0"treacherous"
1"streaming"
2"the last thing"
3"flickered"
4"etched"
5"scanning"
6"rhythmic"
7"echoed"
8"structure"
9"footsteps"
10"flicked"
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
narrationSentences140
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount1
narrationSentences140
filterMatches
0"watch"
hedgeMatches
0"started to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences145
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
totalWords1895
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions14
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions65
wordCount1788
uniqueNames24
maxNameDensity0.84
worstName"Quinn"
maxWindowNameDensity1.5
worstWindowName"Quinn"
discoveredNames
Soho2
Harlow1
Quinn15
Raven2
Nest2
Tomás2
Herrera9
Saint3
Christopher3
Morris4
Old1
Compton1
Street3
Oxford1
Camden3
Limehouse1
High1
Veil3
Market3
Tube1
Victorian1
English1
Seville1
London1
persons
0"Harlow"
1"Quinn"
2"Nest"
3"Tomás"
4"Herrera"
5"Saint"
6"Christopher"
7"Morris"
8"Market"
places
0"Soho"
1"Raven"
2"Old"
3"Compton"
4"Street"
5"Oxford"
6"Camden"
7"Limehouse"
8"High"
9"Veil"
10"Victorian"
11"Seville"
12"London"
globalScore1
windowScore1
38.39% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences112
glossingSentenceCount5
matches
0"felt like a countdown"
1"sounded like wings"
2"looked like living shadow offered her a b"
3"something like pity in his expression"
4"felt like forward momentum instead of m"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1895
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences145
matches
0"screaming that she"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs33
mean57.42
std36.75
cv0.64
sampleLengths
0134
176
210
3110
4110
5107
693
775
8103
951
107
11124
1284
1374
1476
1522
1660
1765
1875
1960
2036
2149
2225
2330
2441
2559
2610
2712
287
2931
3019
3156
324
92.73% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences140
matches
0"was plastered"
1"been marked"
2"been widened"
3"been converted"
4"been torn"
5"were stacked"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs316
matches
0"was running"
1"were mocking"
2"was deciding"
24.63% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount4
semicolonCount2
flaggedSentences6
totalSentences145
ratio0.041
matches
0"At the bottom, another door—this one heavier, iron-bound, etched with symbols that hurt to look at directly."
1"She was clearly a cop; the rain still dripped from her coat in steady beats, and the baton was still in her hand."
2"The platform edge had been converted into a thoroughfare; beyond it, the rails had been torn up to make room for more stalls."
3"Strange music drifted from somewhere ahead—strings and a low, rhythmic chanting that made her teeth ache."
4"Further ahead, she heard footsteps—fast, retreating."
5"A shadow passed there—something tall, jointed wrong."
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1800
adjectiveStacks1
stackExamples
0"neat, blood-red script"
adverbCount68
adverbRatio0.03777777777777778
lyAdverbCount21
lyAdverbRatio0.011666666666666667
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences145
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences145
mean13.07
std8.23
cv0.63
sampleLengths
022
123
219
329
424
517
626
72
819
911
108
1110
128
132
142
1515
1610
1714
1812
1916
2021
2115
225
237
2422
2514
2611
279
287
2915
3016
319
324
3324
3410
3510
3618
3715
388
3918
407
412
4226
434
446
453
4617
477
483
4918
55.17% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.35172413793103446
totalSentences145
uniqueOpeners51
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount6
totalSentences131
matches
0"Then Tomás Herrera had slipped"
1"Just like it had followed"
2"Then he ducked left into"
3"Of course it had."
4"Then he vaulted a low"
5"Further ahead, she heard footsteps—fast,"
ratio0.046
76.49% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount47
totalSentences131
matches
0"Her closely cropped salt-and-pepper hair"
1"She had recognized him instantly:"
2"She suspected he was running"
3"she barked, voice raw against"
4"He bolted east along Old"
5"She kept her eyes fixed"
6"She had the file memorized."
7"They burst out of Soho"
8"Her breath sawed in and"
9"He’d gone alone into an"
10"She wasn’t about to let"
11"He ran like a man"
12"Their eyes met across twenty"
13"His warm brown gaze held"
14"She drew her baton, not"
15"It moved every full moon,"
16"You needed a bone token"
17"She had none."
18"She took them two at"
19"Her shadow jerked ahead of"
ratio0.359
59.24% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount105
totalSentences131
matches
0"The rain came down in"
1"Detective Harlow Quinn kept her"
2"Her closely cropped salt-and-pepper hair"
3"The worn leather watch on"
4"She had recognized him instantly:"
5"She suspected he was running"
6"she barked, voice raw against"
7"He bolted east along Old"
8"Quinn gave chase, lungs already"
9"The streets were still busy"
10"A taxi horn blared as"
11"Quinn followed, boots skidding on"
12"She kept her eyes fixed"
13"That scar had come from"
14"She had the file memorized."
15"The chase carved a jagged"
16"They burst out of Soho"
17"Her breath sawed in and"
18"Every splash of her footfalls"
19"Morris had chased something just"
ratio0.802
76.34% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences131
matches
0"Because she did know."
1"To seal the entrance and"
ratio0.015
50.09% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences77
technicalSentenceCount10
matches
0"Three hours tailing shadows outside The Raven’s Nest, watching that distinctive green neon buzz above the entrance like a warning no one ever heeded."
1"She had recognized him instantly: the short curly dark brown hair, the olive skin, the Saint Christopher medallion that bounced against his collarbone when he r…"
2"He bolted east along Old Compton Street, trainers slapping through puddles that exploded like gunfire."
3"The rational part of her brain, the part that had earned her commendations and a reputation for icy calm, screamed at her to call for backup."
4"One stall offered glowing vials of banned alchemical substances that swirled like captive galaxies."
5"Strange music drifted from somewhere ahead—strings and a low, rhythmic chanting that made her teeth ache."
6"She caught a flash of movement thirty metres ahead: Herrera slipping between a stall selling maps that redrew themselves and another peddling fresh nightmares i…"
7"He moved with the easy confidence of a man on home ground, nodding to a vendor who tossed him a small leather pouch without breaking stride."
8"Then he vaulted a low table laden with enchanted rings and disappeared behind a bookshelf that stood in the middle of the tunnel for no architectural reason Qui…"
9"Herrera exhaled, almost regretful, and the medallion at his throat caught the light one last time as he turned toward a second, narrower passage that hadn’t bee…"
79.55% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags11
uselessAdditionCount1
matches
0"she barked, voice raw against the rain"
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags9
fancyCount3
fancyTags
0"she barked (bark)"
1"she whispered (whisper)"
2"she shouted (shout)"
dialogueSentences16
tagDensity0.563
leniency1
rawRatio0.333
effectiveRatio0.333
83.8344%