Run: 2026-03-12-01KKHZABNK9FMWGB67M8B5MDXW

Run Details

Duration:
11.3s
Cost:
$0.013475
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
The abandoned Tube station beneath Camden hummed with a silence that felt wrong. Detective Harlow Quinn stepped off the last rung of the service ladder, boots ringing against the slick concrete platform. The air tasted of damp brick, rust, and something sharper—ozone and scorched herbs. Emergency lights had been rigged along the curved walls, their harsh white glare carving deep shadows between the abandoned ticket kiosks and the rusted turnstiles. Yellow police tape fluttered across the mouth of the old Northern Line tunnel like a warning. She adjusted the worn leather watch on her left wrist, checking the time out of habit rather than necessity. 3:17 a.m. The call had come in forty-three minutes earlier. Body in the old station. Possible occult indicators. The moment the dispatcher had said the words, Harlow’s stomach had tightened. She moved forward with military precision, shoulders squared, brown eyes scanning every inch of the scene. The victim lay sprawled near the platform edge, half in shadow. Male, mid-thirties, expensive coat now soaked with what looked like blood and some kind of black residue that shimmered faintly under the lights. His left hand clutched something small and metallic. Detective Sergeant Patel crouched beside the corpse, camera in hand, documenting the position. He glanced up as Harlow approached, his expression carefully neutral. “Quinn. Didn’t expect you on this one.” “I was already awake,” she said, voice low. “Talk to me.” Patel straightened, wiping his gloved hands on his trousers. “Uniforms found him during a routine sweep of the derelict stations. No ID yet. Throat’s been cut, but the wound doesn’t look right. Too clean for a knife fight. And there’s this.” He pointed to a series of symbols burned into the concrete around the body—circles intersecting with jagged lines, the edges still faintly smoking. Harlow knelt, the sharp line of her jaw catching the light. The symbols were familiar in the worst way. She had seen similar marks three years ago, the night DS Morris disappeared. The same night everything she thought she understood about the world cracked open. She reached into her coat pocket and produced a small evidence bag, carefully lifting one of the charred fragments. It crumbled slightly between her fingers, releasing a scent like burnt cinnamon and copper. “Colleague thinks it’s some kind of gang ritual,” Patel offered, nodding toward a young uniformed officer standing twenty feet away who was trying very hard not to look sick. “East End crew moving into occult territory to scare rivals. The symbols match some graffiti we’ve seen in Whitechapel.” Harlow said nothing. She studied the body instead. The cut across the victim’s throat was perfectly straight, almost surgical, yet there were no hesitation marks, no defensive wounds on the hands or arms. The man’s expression, frozen in death, showed not terror but something closer to awe. His eyes—wide, glassy—were fixed on the ceiling as though he had seen something wondrous in his final moments. She turned her attention to the object clutched in the dead man’s fist. Gently, she pried the fingers open. A small brass compass rested in his palm, its casing covered in a patina of verdigris. The face was etched with protective sigils that matched the burned marks on the floor. The needle spun lazily, not pointing north, but twitching toward the blocked tunnel entrance as though searching for something that kept moving. Harlow’s pulse quickened. She had seen a compass like this before—once, in a locked evidence box from Morris’s last case. The box had been emptied two days after his disappearance. Official report claimed contamination. She had never believed it. “Find anything else?” she asked, keeping her voice steady. Patel shrugged. “Leather satchel about ten feet that way. Books inside. Old ones. Latin, I think. Some diagrams that look like star charts but wrong. The girl who reported the body is over there.” Harlow followed his gesture. A woman sat on a folding chair provided by the forensic team, curly red hair spilling over her shoulders, round glasses slightly askew. She clutched a worn leather satchel to her chest despite the fact that another identical satchel already lay on the evidence table. Freckles stood out sharply against her pale skin. She kept tucking a strand of hair behind her left ear with nervous precision. Eva Kowalski. Harlow felt the recognition like a physical blow. Aurora’s childhood friend. The occult researcher. The woman who had been seen near three different crime scenes in the last fourteen months—always arriving just after the bodies were discovered, always with perfectly reasonable explanations. “Ms. Kowalski,” Harlow said, approaching slowly. “We meet again.” Eva looked up. Her green eyes widened behind the round lenses, but she recovered quickly. “Detective Quinn. I didn’t realize you were assigned to this.” “Funny how that works.” Harlow crouched to bring herself to eye level. “You want to tell me what you’re doing in an abandoned Tube station at three in the morning carrying books about celestial alignments and a compass that doesn’t point north?” Eva’s fingers tightened on the strap of her satchel. “Research,” she said. “The Veil Market is supposed to open nearby tonight. I was looking for an entrance. The compass—” She stopped herself. Harlow’s eyebrows rose. “The Veil Market?” Eva’s cheeks flushed. “It’s… a term from certain texts. An underground gathering of certain practitioners. I study historical occult practices, Detective. You know that.” “I know you’ve studied them at every single crime scene that’s crossed my desk since Morris died.” The words landed harder than Harlow intended. Eva flinched but held her gaze. The detective turned back to the body, giving herself a moment to think. Something was wrong with the blood spatter. Or rather, the lack of it. The wound had bled, yes—enough to stain the victim’s shirt and pool beneath him—but the spray patterns were inconsistent with arterial damage. It was as though the blood had been drawn out slowly, deliberately, rather than expelled in panic. She moved to the tunnel entrance. The blocked-off section had been sealed with plywood and steel mesh years ago. Now the barrier showed fresh scoring marks, as though something with claws had tried to tear its way through from the other side. The marks were too high for any ordinary animal. Harlow ran her fingers along one of the gouges. The edges were smooth, almost melted. Heat? Acid? Or something that existed between the two? Patel appeared at her shoulder. “I’m telling you, it’s a gang thing. The symbols are just for show. Some new designer drug probably. The wound could be from a very sharp blade. These people are getting creative.” Harlow straightened. “Then explain the compass. And the fact that every sigil on the ground is slightly misdrawn—like someone was copying them from memory rather than a proper source. The error in the third ring is consistent across all of them. A practitioner who knew what they were doing wouldn’t make the same mistake eight times.” Patel frowned. “Maybe the killer was in a hurry.” “Or maybe the victim drew them himself,” Harlow said quietly. “Maybe he was trying to open something. Or close it.” She glanced at Eva again. The younger woman had stood up and was inching closer to the platform edge, eyes fixed on the compass still resting in the evidence tray. Her expression was hungry in a way that made Harlow’s skin crawl. “Ms. Kowalski,” Harlow called. “You wouldn’t happen to know what this compass points toward, would you?” Eva’s nervous habit returned—tucking hair, adjusting glasses. “It’s a shadow compass. Points toward the nearest active rift. Places where the… where the veil is thin.” “Veil,” Harlow repeated. The word tasted bitter. Morris had used it once, in a late-night conversation three days before he vanished. *The veil is tearing, Quinn. And something’s bleeding through.* She made a decision. “Patel, I want the entire tunnel section photographed with UV and infrared. Every inch. And get forensics to check the plywood for organic residue that isn’t human. I want to know what tried to get through.” Patel started to protest but caught the look in her eyes and nodded instead. Harlow walked back to Eva, close enough to smell the faint scent of old paper and rosemary that always seemed to cling to her. “You’re going to tell me exactly what you saw when you arrived here. And don’t leave anything out this time. Because I’m starting to think you’re not just an academic, Eva. I think you’re involved. Maybe not in the killing. But in whatever led to it.” Eva met her gaze. For the first time, the fear in her green eyes seemed genuine rather than performed. “Detective… you don’t understand what you’re looking at. That man didn’t die because someone murdered him. He died because he succeeded.” Harlow felt the weight of those words settle over her like cold water. She looked again at the body, at the compass needle now spinning faster, at the symbols that weren’t quite right, at the way the dead man’s face still held that expression of terrible wonder. Something was very wrong here. The evidence didn’t add up because it wasn’t meant to add up in any world she had been trained to understand. Harlow Quinn squared her shoulders, salt-and-pepper hair catching the emergency lights, and felt the familiar chill of recognition. The same chill she had felt the night Morris was taken. This wasn’t a gang killing. This wasn’t even a human crime. Not entirely. She slipped the brass compass into an evidence bag, watching the needle continue to twitch behind the plastic. Whatever it was pointing toward, it was getting closer. “Eva,” she said softly, “you’re going to help me understand what the hell is on the other side of that tunnel. And if you lie to me again, I’ll make sure every restricted archive in London knows exactly how helpful you’ve been.” The red-haired woman swallowed hard, freckles standing out like stars against her skin. For the first time in three years, Harlow felt like she was finally moving toward answers instead of away from them. The abandoned station seemed to hold its breath around them, the blocked tunnel waiting like a mouth that had already swallowed one man whole and was still hungry. Harlow Quinn rolled her shoulders once, feeling the familiar weight of her gun at her hip and the much heavier weight of questions she could no longer ignore. She was going to find out what had happened to her partner. And whatever had killed this man was going to wish it had stayed on its side of the veil.
created_at"2026-03-12T21:30:22.264Z" 3/12/2026, 9:30:22 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency316
moderation_latency(null)
generation_time11143
tokens_prompt923
tokens_completion2858
native_tokens_prompt932
native_tokens_completion2204
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached896
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"completed"
usage0.0134752
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"f7e01f7e-0be5-96c9-3aa7-3c0bef02358e"
is_byokfalse
latency299
model_permaslug"x-ai/grok-4.20-beta-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773351022-GzGiXYuNo35STbFqHqcY"
upstream_id"f7e01f7e-0be5-96c9-3aa7-3c0bef02358e"
total_cost0.0134752
cache_discount0.0016128
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
70.97% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags12
adverbTagCount2
adverbTags
0"Harlow said quietly [quietly]"
1"she said softly [softly]"
dialogueSentences31
tagDensity0.387
leniency0.774
rawRatio0.167
effectiveRatio0.129
49.41% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1779
totalAiIsmAdverbs18
found
0
adverb"carefully"
count2
1
adverb"slightly"
count3
2
adverb"very"
count3
3
adverb"perfectly"
count2
4
adverb"gently"
count1
5
adverb"lazily"
count1
6
adverb"sharply"
count1
7
adverb"slowly"
count2
8
adverb"quickly"
count1
9
adverb"deliberately"
count1
10
adverb"softly"
count1
highlights
0"carefully"
1"slightly"
2"very"
3"perfectly"
4"gently"
5"lazily"
6"sharply"
7"slowly"
8"quickly"
9"deliberately"
10"softly"
80.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found
0"Patel"
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
55.03% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1779
totalAiIsms16
found
0
word"silence"
count1
1
word"fluttered"
count1
2
word"stomach"
count1
3
word"scanning"
count1
4
word"shimmered"
count1
5
word"familiar"
count3
6
word"etched"
count1
7
word"pulse"
count1
8
word"quickened"
count1
9
word"weight"
count3
10
word"chill"
count2
highlights
0"silence"
1"fluttered"
2"stomach"
3"scanning"
4"shimmered"
5"familiar"
6"etched"
7"pulse"
8"quickened"
9"weight"
10"chill"
66.67% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches2
maxInWindow2
found
0
label"eyes widened/narrowed"
count1
1
label"weight of words/silence"
count1
highlights
0"eyes widened"
1"the weight of those words"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells1
narrationSentences116
matches
0"d in panic"
68.97% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount5
narrationSentences116
filterMatches
0"watch"
hedgeMatches
0"tried to"
1"started to"
2"seemed to"
3"happened to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences135
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen56
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans1
markdownWords9
totalWords1770
ratio0.005
matches
0"The veil is tearing, Quinn. And something’s bleeding through."
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions13
unquotedAttributions0
matches(empty)
33.33% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions53
wordCount1269
uniqueNames11
maxNameDensity1.81
worstName"Harlow"
maxWindowNameDensity4
worstWindowName"Harlow"
discoveredNames
Tube1
Camden1
Harlow23
Quinn4
Northern1
Line1
Sergeant1
Patel7
Morris4
Kowalski1
Eva9
persons
0"Camden"
1"Harlow"
2"Quinn"
3"Sergeant"
4"Patel"
5"Morris"
6"Kowalski"
7"Eva"
places(empty)
globalScore0.594
windowScore0.333
0.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences78
glossingSentenceCount5
matches
0"looked like blood and some kind of black"
1"as though searching for something that kept moving"
2"It was as though the blood had been drawn out slowly, deliberately, rather than expelled in panic"
3"seemed genuine rather than performed"
4"felt like she was finally moving toward"
87.01% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.13
wordCount1770
matches
0"not terror but something closer to awe"
1"not pointing north, but twitching toward the blocked tunnel entrance as though searc"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences135
matches
0"held that expression"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs58
mean30.52
std20.35
cv0.667
sampleLengths
086
149
258
323
47
511
664
745
833
948
108
1157
1272
1339
149
1534
1671
172
1842
199
2025
2142
2232
236
2424
2517
2613
2765
2851
2924
3037
3156
329
3320
3442
3516
3625
3730
384
3936
4014
4170
4240
4313
4434
4526
4629
475
486
492
78.04% Passive voice overuse
Target: ≤2% passive sentences
passiveCount9
totalSentences116
matches
0"been rigged"
1"were fixed"
2"was etched"
3"been emptied"
4"been seen"
5"were discovered"
6"been drawn"
7"been sealed"
8"been trained"
9"was taken"
82.53% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs227
matches
0"was inching"
1"was pointing"
2"was getting"
3"was finally moving"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount9
semicolonCount0
flaggedSentences7
totalSentences135
ratio0.052
matches
0"The air tasted of damp brick, rust, and something sharper—ozone and scorched herbs."
1"“Uniforms found him during a routine sweep of the derelict stations. No ID yet. Throat’s been cut, but the wound doesn’t look right. Too clean for a knife fight. And there’s this.” He pointed to a series of symbols burned into the concrete around the body—circles intersecting with jagged lines, the edges still faintly smoking."
2"His eyes—wide, glassy—were fixed on the ceiling as though he had seen something wondrous in his final moments."
3"She had seen a compass like this before—once, in a locked evidence box from Morris’s last case."
4"The woman who had been seen near three different crime scenes in the last fourteen months—always arriving just after the bodies were discovered, always with perfectly reasonable explanations."
5"The wound had bled, yes—enough to stain the victim’s shirt and pool beneath him—but the spray patterns were inconsistent with arterial damage."
6"Eva’s nervous habit returned—tucking hair, adjusting glasses."
96.19% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1285
adjectiveStacks0
stackExamples(empty)
adverbCount57
adverbRatio0.0443579766536965
lyAdverbCount20
lyAdverbRatio0.01556420233463035
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences135
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences135
mean13.11
std10.3
cv0.785
sampleLengths
013
119
213
325
416
519
62
78
85
93
1012
1116
1211
1323
148
1513
1610
177
188
193
209
2155
2211
238
2413
2513
2619
2714
2829
2919
303
315
3225
3314
3418
3513
366
3716
3815
3922
403
4117
4210
434
445
459
462
4732
484
4923
54.32% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.34814814814814815
totalSentences135
uniqueOpeners47
31.75% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences105
matches
0"Gently, she pried the fingers"
ratio0.01
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount28
totalSentences105
matches
0"She adjusted the worn leather"
1"She moved forward with military"
2"His left hand clutched something"
3"He glanced up as Harlow"
4"she said, voice low"
5"He pointed to a series"
6"She had seen similar marks"
7"She reached into her coat"
8"It crumbled slightly between her"
9"She studied the body instead."
10"His eyes—wide, glassy—were fixed on"
11"She turned her attention to"
12"She had seen a compass"
13"She had never believed it."
14"she asked, keeping her voice"
15"She clutched a worn leather"
16"She kept tucking a strand"
17"Her green eyes widened behind"
18"She stopped herself"
19"It was as though the"
ratio0.267
17.14% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount93
totalSentences105
matches
0"The abandoned Tube station beneath"
1"Detective Harlow Quinn stepped off"
2"The air tasted of damp"
3"Emergency lights had been rigged"
4"She adjusted the worn leather"
5"The call had come in"
6"Body in the old station."
7"The moment the dispatcher had"
8"She moved forward with military"
9"The victim lay sprawled near"
10"His left hand clutched something"
11"Detective Sergeant Patel crouched beside"
12"He glanced up as Harlow"
13"she said, voice low"
14"Patel straightened, wiping his gloved"
15"He pointed to a series"
16"Harlow knelt, the sharp line"
17"The symbols were familiar in"
18"She had seen similar marks"
19"The same night everything she"
ratio0.886
47.62% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences105
matches
0"Now the barrier showed fresh"
ratio0.01
50.26% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences54
technicalSentenceCount7
matches
0"The abandoned Tube station beneath Camden hummed with a silence that felt wrong."
1"Male, mid-thirties, expensive coat now soaked with what looked like blood and some kind of black residue that shimmered faintly under the lights."
2"His eyes—wide, glassy—were fixed on the ceiling as though he had seen something wondrous in his final moments."
3"The needle spun lazily, not pointing north, but twitching toward the blocked tunnel entrance as though searching for something that kept moving."
4"The woman who had been seen near three different crime scenes in the last fourteen months—always arriving just after the bodies were discovered, always with per…"
5"She looked again at the body, at the compass needle now spinning faster, at the symbols that weren’t quite right, at the way the dead man’s face still held that…"
6"The abandoned station seemed to hold its breath around them, the blocked tunnel waiting like a mouth that had already swallowed one man whole and was still hung…"
83.33% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags12
uselessAdditionCount1
matches
0"she said, voice low"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags8
fancyCount1
fancyTags
0"Harlow repeated (repeat)"
dialogueSentences31
tagDensity0.258
leniency0.516
rawRatio0.125
effectiveRatio0.065
71.7520%