Run: 2026-05-01-01KQHRKNEX65TXZKA103YT70TV

Run Details

Duration:
1m 45s
Cost:
$0.018839
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="4414" name="Eva Kowalski" aliases="Eva, Evie" pronouns="she/her" species="Human" storyRole="Best Friend"> <eyeColor>green</eyeColor> <hair>curly red</hair> <height>5'4"</height> <age>26</age> <glasses>round glasses</glasses> <satchel>worn leather satchel full of books</satchel> <freckles>freckled complexion</freckles> <nervousHabit>tucking hair behind her left ear</nervousHabit> <description>Aurora's childhood friend and an occult researcher.</description> <backstory>Moved to London two years before Aurora and works as a research assistant at the British Museum's restricted archives. She holds a master's degree in Ancient History from Oxford.</backstory> </character> <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> <item id="2004" name="Veil Compass" aliases="the Compass, shadow compass" type="Tool" origin="The Veil Market"> <casingMaterial>small brass compass</casingMaterial> <faceMarkings>face etched with protective sigils</faceMarkings> <needle>points toward the nearest supernatural rift or portal</needle> <patina>casing has a patina of verdigris</patina> <creator>crafted by a Shade artisan</creator> <description>A compass attuned to supernatural energy.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the mystery genre. A detective arrives at a crime scene in an unusual location. Something is wrong — the evidence doesn't add up. A colleague is present, offering a different interpretation. Through careful observation and deduction, the detective begins to see what others have missed. 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
Detective Harlow Quinn descended the rusted service ladder into the abandoned Tube station beneath Camden, the bone token heavy in her coat pocket like a accusing finger. The air thickened as she dropped the final few feet, boots landing on cracked tile slick with condensation and something faintly luminous that clung to the soles. Ozone and myrrh warred in her nostrils, undercut by the sour tang of fear-sweat from the vendors now pressed against the curved walls by uniformed officers. Floating witch-lights bobbed overhead, their violet glow clashing violently with the harsh white beams of police torches. The entire place should not have existed. Metropolitan Police records listed this stretch of tunnel as collapsed since the Blitz. Yet here stood the Veil Market in all its illicit glory, stalls draped in oilcloth and shadow, hawking vials that swirled with captive starlight, bundles of dried herbs that whispered when touched, and iron-bound ledgers promising secrets no living tongue should speak. She straightened to her full height, shoulders squared with the military precision that had defined her for eighteen years. Salt-and-pepper hair cropped close to her scalp caught the erratic light as she scanned the platform. At forty-one, Harlow had seen every variety of human cruelty the city could offer. This was different. This felt like the night DS Morris had disappeared, the night the shadows had grown teeth and the coroner’s report had been stamped with a single word: inconclusive. Her brown eyes narrowed. The worn leather watch on her left wrist read 12:47 a.m. The market was supposed to relocate with every full moon; its presence here tonight meant someone had anchored it, and anchoring carried a price. “Quinn.” DS Ellis emerged from between two stalls, notebook already open, face pale beneath a dusting of freckles that made him look younger than his thirty-four years. “Hell of a way to spend a Thursday. Victim’s over here. Name’s Elias Thorn. Dealer in restricted alchemicals and curios. No ID on him, but the stall ledger matches. Looks like a straightforward overdose or a deal gone sour. These types are always cooking up something nasty in the back.” Harlow said nothing. She followed him past a booth displaying glass globes filled with what appeared to be living mist, the tape cordoning the crime scene fluttering like a broken wing. Elias Thorn lay on his back near the yellow line that once marked the platform edge. No blood. No bruising. The man’s face, however, told a different story: jaw unhinged in a frozen scream, eyes wide and shot through with burst capillaries that formed intricate patterns if one looked long enough. His fingers were curled inward, nails splintered as though he had tried to claw his way back from somewhere unimaginably far. Ellis crouched beside her. “See? No defensive wounds. Tox screen will probably light up like Oxford Street, but forensics is having fits trying to bag evidence without touching those… things.” He gestured at the scattered merchandise: a silver athame etched with lunar phases, several stoppered bottles of mercury-dark liquid, and a small velvet pouch that shifted as if something inside breathed. “My take? Thorn sampled his own product or crossed a rival crew dealing in the same banned substances. Market’s full of turf wars. We wrap it as misadventure, file the paperwork, and get out before the whole place gives me hives.” Harlow’s sharp jaw tightened. The evidence refused to line up neatly. A turf war would have left the valuables stripped. Yet the athame alone would fetch thousands on the black market, and it lay untouched inches from Thorn’s outstretched hand. She pulled on fresh gloves, the latex snapping loud in the unnatural hush. When she lifted the man’s sleeve, faint burns circled his wrist like a bracelet—too precise for flame, too geometric for acid. Protective sigils, her mind supplied before she could stop it. The same markings she had seen in the sealed file on Morris’s disappearance. From Thorn’s inner coat she drew a small brass compass no larger than a pocket watch. Its casing wore a thick patina of verdigris, the face etched with the same sigils now branded into the dead man’s skin. The needle spun lazily, then locked onto the bricked-up archway at the far end of the platform where the old tunnel had been sealed in the forties. Not north. Not any cardinal direction. Toward the nearest supernatural rift or portal, if the whispered lore she had gathered during her off-the-books investigation was to be trusted. Crafted by a Shade artisan, the informant had insisted. Attuned. Dangerous. She rose, turning the device slowly. The needle tracked her movement, swinging back toward the arch each time. Ellis watched with open skepticism. “Gimmick,” he said. “Souvenir. You’re reading too much into it, Quinn. I know you’ve been chasing ghosts since Morris, but this is just another dead lowlife.” The name landed like a slap. Harlow’s grip tightened on the compass until the casing bit into her palm. Before she could answer, movement at the edge of the cordon caught her eye. A woman stood between two constables, curly red hair escaping its hasty knot, round glasses slightly askew on a freckled face. She could not have been more than five-four; beside Harlow’s height she looked almost fragile, yet her green eyes held a wary intelligence that set every instinct humming. A worn leather satchel bulged against her hip, heavy with books. One hand kept tucking an errant curl behind her left ear. Eva Kowalski. Research assistant at the British Museum’s restricted archives. Oxford graduate. And, according to Harlow’s private dossier, intimately tied to the clique she had been circling for months. “Bring her through,” Harlow called. The constables escorted Eva forward. The younger woman’s gaze flicked once to the body, then to the compass in Harlow’s hand. Recognition flared behind the round lenses. “Detective Quinn,” Eva said quietly. Her voice carried the clipped precision of someone who spent more time with ancient texts than living people. “You shouldn’t be holding that without a ward. The needle is sensitive.” Ellis snorted. “Here we go. Another expert. Look, miss, unless you saw the actual moment of death, we don’t need theories about magic compasses. This was chemical. End of.” Harlow lifted a hand, cutting him off. She studied Eva the way she studied every suspect: posture, micro-expressions, the nervous habit with her hair. The woman was afraid, but not of the police. “You found the body?” “I arrived ten minutes before the first uniform. Thorn was already gone. I came for research—transcriptions of third-century rift seals. The market moves every full moon; tonight was the only safe window.” Eva’s gaze drifted back to the compass. “That device was his insurance. If the needle is pointing at the arch, then the rift is active. Thorn must have tried to close it and failed.” Harlow weighed the brass instrument again. Its warmth bled through her glove. She walked a slow circle around the body. The needle tracked unerringly toward the bricked arch until she stood directly between Thorn and the wall; then it began to spin frantically. When she crouched and held the compass like a lens over the dead man’s eyes, the etched sigils on its face glowed soft silver. Through them she saw what no one else had: filaments of pure darkness coiling in the vitreous humor, thin as spider silk and twice as deliberate. They pulsed once, as if still fighting to escape, then stilled. Her stomach clenched. The same residue had been found in Morris’s optic fluid. The report had called it contamination. She had called it a lie. Ellis shifted his weight. “You’re buying this? Quinn, the lights down here are playing tricks. There’s no such thing as shadow essence or rifts or whatever fairy tale she’s selling.” But the evidence refused to cooperate with his tidy narrative. No footprints leading away. No residue of conventional poison. The untouched valuables. The sigils. The compass needle that now pointed directly at Eva herself when Harlow swung it back. The younger woman flinched. “It’s keyed to residual energy,” Eva explained, tucking hair behind her ear again. “I spoke with Thorn earlier. He was terrified. Someone had commissioned him to stabilize a breach using that compass and a keystone he kept in the back of the stall. The buyer never showed. When the rift widened instead of closing, it reached for the nearest living soul. Thorn anchored it with his own life force. That’s why there’s no blood. The Veil took payment in essence.” Harlow straightened. The platform seemed to tilt beneath her military-straight posture. For three years she had chased mundane explanations for Morris’s death—corrupt informants, experimental gas, mass hallucination. Each theory had crumbled. Now the fractures were widening here, in this impossible place that smelled of ozone and old terror. She glanced at Ellis, whose face had gone from skeptical to openly alarmed. “Call the specialist unit. Code Shadow. Tell them we have confirmed rift activity and possible Shade involvement.” To Eva she said, “You’re coming with me. Not under arrest—yet. But if your clique is running interference in my city, I will burn every archive and every hidden stall until I get answers.” Eva met her stare without blinking, though her freckled cheeks had lost color. “The clique isn’t your enemy, Detective. We’ve been trying to seal these breaches since before you lost your partner. The real criminals are the ones tearing new holes for power and profit. Thorn’s compass can show you where the next one will open if you let it. But you have to stop seeing only the crime that fits your report.” Harlow slipped the Veil Compass into an evidence bag, then tucked the bag inside her coat where its faint warmth pressed against her ribs like a second heartbeat. She looked once more at Elias Thorn’s ruined face, at the sigils on his wrist that matched the markings on the brass face exactly. Others had seen a drug deal or an overdose. She saw the outline of something vast and hungry pressing against the world from the other side. The floating lights overhead flickered as though something enormous had passed across their unseen source. Water dripped from the tiled ceiling in slow, arrhythmic plinks that sounded almost like footsteps. Harlow’s hand brushed the grip of her service weapon, then fell away. Bullets would not solve this. “Come on,” she told Eva, already striding toward the ladder. “Show me how to read this thing properly. And if you lie to me, Kowalski, I’ll make sure every restricted archive at the British Museum receives a very thorough audit.” As they climbed back toward the surface, the compass in her pocket tugged insistently southward, toward a part of London that did not appear on any official map. Harlow felt the familiar weight of her watch, the precise tick of seconds that suddenly felt borrowed. For the first time in three years the evidence had alignednot into a simple homicide, but into a question that threatened to swallow her whole. Whatever had killed Elias Thorn had recognized her. She could feel its attention lingering on the back of her neck like cold breath. And for the first time, Detective Harlow Quinn did not look away.
created_at"2026-05-01T12:35:54.465Z" 5/1/2026, 12:35:54 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency74683
moderation_latency(null)
generation_time105347
tokens_prompt923
tokens_completion4639
native_tokens_prompt934
native_tokens_completion7445
native_tokens_completion_images(null)
native_tokens_reasoning5136
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"
usage0.0188392
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"ed3b075f-eb9d-9e5f-8f82-c8fdc8a89e4f"
is_byokfalse
latency89
model_permaslug"x-ai/grok-4.20-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777638954-uLurPqApiKQ5wJWniDXA"
session_id(null)
api_type"completions"
id"gen-1777638954-mUrmQA3ZhzeaSQSJyRa1"
upstream_id"ed3b075f-eb9d-9e5f-8f82-c8fdc8a89e4f"
total_cost0.0188392
cache_discount0.0009408
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags9
adverbTagCount2
adverbTags
0"Eva said quietly [quietly]"
1"Eva’s gaze drifted back [back]"
dialogueSentences20
tagDensity0.45
leniency0.9
rawRatio0.222
effectiveRatio0.2
86.73% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1884
totalAiIsmAdverbs5
found
0
adverb"lazily"
count1
1
adverb"slowly"
count1
2
adverb"slightly"
count1
3
adverb"very"
count1
4
adverb"suddenly"
count1
highlights
0"lazily"
1"slowly"
2"slightly"
3"very"
4"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)
49.58% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1884
totalAiIsms19
found
0
word"scanned"
count1
1
word"intricate"
count1
2
word"etched"
count3
3
word"velvet"
count1
4
word"flicked"
count1
5
word"warmth"
count2
6
word"silk"
count1
7
word"pulsed"
count1
8
word"stomach"
count1
9
word"weight"
count2
10
word"flickered"
count1
11
word"footsteps"
count1
12
word"familiar"
count1
13
word"aligned"
count1
14
word"could feel"
count1
highlights
0"scanned"
1"intricate"
2"etched"
3"velvet"
4"flicked"
5"warmth"
6"silk"
7"pulsed"
8"stomach"
9"weight"
10"flickered"
11"footsteps"
12"familiar"
13"aligned"
14"could feel"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"eyes widened/narrowed"
count1
highlights
0"eyes narrowed"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells1
narrationSentences111
matches
0"was afraid"
39.90% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount4
hedgeCount4
narrationSentences111
filterMatches
0"watch"
1"look"
hedgeMatches
0"appeared to"
1"tried to"
2"began to"
3"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences122
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen67
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1879
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions9
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions63
wordCount1393
uniqueNames20
maxNameDensity1.22
worstName"Harlow"
maxWindowNameDensity3
worstWindowName"Harlow"
discoveredNames
Harlow17
Quinn2
Tube1
Camden1
Police1
Blitz1
Veil2
Market1
Morris4
Ellis6
Thorn6
Shade1
Kowalski1
British1
Museum1
Eva10
Compass1
Elias3
London1
Detective2
persons
0"Harlow"
1"Quinn"
2"Morris"
3"Ellis"
4"Thorn"
5"Kowalski"
6"Museum"
7"Eva"
8"Elias"
places
0"British"
1"Compass"
2"London"
globalScore0.89
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences81
glossingSentenceCount1
matches
0"felt like the night DS Morris had disap"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.532
wordCount1879
matches
0"not into a simple homicide, but into a question"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences122
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs29
mean64.79
std37.43
cv0.578
sampleLengths
0159
1119
277
3103
4102
597
6104
723
826
9133
105
1127
1235
1329
1437
1566
16104
1725
1830
1943
2080
2148
2264
2373
2478
2547
2640
2770
2835
89.46% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences111
matches
0"been stamped"
1"was supposed"
2"were curled"
3"been sealed"
4"been found"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs225
matches
0"were widening"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount4
flaggedSentences7
totalSentences122
ratio0.057
matches
0"The market was supposed to relocate with every full moon; its presence here tonight meant someone had anchored it, and anchoring carried a price."
1"When she lifted the man’s sleeve, faint burns circled his wrist like a bracelet—too precise for flame, too geometric for acid."
2"She could not have been more than five-four; beside Harlow’s height she looked almost fragile, yet her green eyes held a wary intelligence that set every instinct humming."
3"“I arrived ten minutes before the first uniform. Thorn was already gone. I came for research—transcriptions of third-century rift seals. The market moves every full moon; tonight was the only safe window.” Eva’s gaze drifted back to the compass."
4"The needle tracked unerringly toward the bricked arch until she stood directly between Thorn and the wall; then it began to spin frantically."
5"For three years she had chased mundane explanations for Morris’s death—corrupt informants, experimental gas, mass hallucination."
6"For the first time in three years the evidence had aligned—not into a simple homicide, but into a question that threatened to swallow her whole."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1409
adjectiveStacks0
stackExamples(empty)
adverbCount52
adverbRatio0.036905606813342796
lyAdverbCount18
lyAdverbRatio0.0127750177430802
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences122
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences122
mean15.4
std12.72
cv0.826
sampleLengths
027
127
226
317
47
513
642
719
816
914
103
1128
124
1311
1424
1527
1650
173
1828
1916
202
212
2231
2321
244
2557
2641
274
287
299
3020
3113
3221
3310
3413
3516
3622
3727
382
394
4022
419
421
431
446
4512
465
473
4823
496
72.40% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats10
diversityRatio0.48360655737704916
totalSentences122
uniqueOpeners59
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences99
matches(empty)
ratio0
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount21
totalSentences99
matches
0"She straightened to her full"
1"Her brown eyes narrowed."
2"She followed him past a"
3"His fingers were curled inward,"
4"He gestured at the scattered"
5"She pulled on fresh gloves,"
6"Its casing wore a thick"
7"She rose, turning the device"
8"She could not have been"
9"Her voice carried the clipped"
10"She studied Eva the way"
11"Its warmth bled through her"
12"She walked a slow circle"
13"They pulsed once, as if"
14"Her stomach clenched."
15"She had called it a"
16"She glanced at Ellis, whose"
17"She looked once more at"
18"She saw the outline of"
19"she told Eva, already striding"
ratio0.212
91.31% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount73
totalSentences99
matches
0"Detective Harlow Quinn descended the"
1"The air thickened as she"
2"Ozone and myrrh warred in"
3"The entire place should not"
4"She straightened to her full"
5"Salt-and-pepper hair cropped close to"
6"This was different."
7"This felt like the night"
8"Her brown eyes narrowed."
9"The worn leather watch on"
10"The market was supposed to"
11"DS Ellis emerged from between"
12"Harlow said nothing."
13"She followed him past a"
14"Elias Thorn lay on his"
15"The man’s face, however, told"
16"His fingers were curled inward,"
17"Ellis crouched beside her."
18"He gestured at the scattered"
19"Harlow’s sharp jaw tightened."
ratio0.737
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount4
totalSentences99
matches
0"Before she could answer, movement"
1"And, according to Harlow’s private"
2"Now the fractures were widening"
3"To Eva she said"
ratio0.04
46.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences59
technicalSentenceCount8
matches
0"Yet here stood the Veil Market in all its illicit glory, stalls draped in oilcloth and shadow, hawking vials that swirled with captive starlight, bundles of dri…"
1"She straightened to her full height, shoulders squared with the military precision that had defined her for eighteen years."
2"The man’s face, however, told a different story: jaw unhinged in a frozen scream, eyes wide and shot through with burst capillaries that formed intricate patter…"
3"His fingers were curled inward, nails splintered as though he had tried to claw his way back from somewhere unimaginably far."
4"Her voice carried the clipped precision of someone who spent more time with ancient texts than living people."
5"Now the fractures were widening here, in this impossible place that smelled of ozone and old terror."
6"The floating lights overhead flickered as though something enormous had passed across their unseen source."
7"Water dripped from the tiled ceiling in slow, arrhythmic plinks that sounded almost like footsteps."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags9
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags6
fancyCount1
fancyTags
0"Eva explained (explain)"
dialogueSentences20
tagDensity0.3
leniency0.6
rawRatio0.167
effectiveRatio0.1
81.4017%