Run: 2026-09-03-01M1M0HABXVA98EC1SQ427CEGA

Run Details

Duration:
4m 4s
Cost:
$0.028200
Provider:
Reka

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 service stairwell beneath Camden with the military precision of a woman who had learned early that wasted motion invited disaster. Her closely cropped salt-and-pepper hair caught the work lamp in a hard halo as she counted steps, twenty-three down to the ticket hall, and the air changed where it met her. It was no longer damp London air, but a layered smell: wet limestone, candle tallow, cold metal, and something faintly sweet, like sugar left too long on a stove. The abandoned Tube station had been sealed for decades. Tonight it had been reopened, or perhaps it had simply chosen to open again. The police tape sagged between the old ticket gates, their iron bars rusted into dark teeth. Beyond it, the platform stretched into shadow, its pillars black with age, its tracks lost in a tunnel that breathed in slow, unnatural drafts. A single lamp had been rigged to a folding table, and beneath it a man lay under a navy canvas. His coat was too good for the place. His boots were too clean. His shoes were not. “Victim found at eleven-fourteen,” said a constable from behind a plastic barrier. “Market regulars, I’m told. They say he was there all night.” “Market regulars.” Quinn touched her sharp jaw, more a habit than a question. “And the market?” “Stalls were set up all over. No one else in the station when the porter came. Body was where it is. Knife in his hand, blood on the floor.” The constable’s face had the wary blankness of someone who had been told not to look too closely. Quinn stepped past him and let her brown eyes find the body first. The canvas had been pulled back. A man, perhaps thirty, lay on his side with his knees bent and one hand extended. A short blade was tucked into the webbing of his fingers as if he had died gripping it. Around his outstretched arm, a pool of dark red had dried into a ragged map across the concrete. Broken glass glittered in it. A small brass compass lay on its face, its needle trembling. Quinn knelt, slow and deliberate. Her first thought was the body heat. The skin at his temple was cool, but not corpse-cold. The second was the absence of blood beneath him. The pool lay around his shoulder and arm, yet the place where his coat should have been soaked was only damp. She lifted the canvas edge with the toe of her boot. No wound. No bruising. No mark that explained the knife, the red, or the set of the man’s face, which was not peaceful but frozen, the eyes open and the pupils drawn tight as if he had seen something at the last moment that no one else in the room could see. “Det. Quinn.” Her taskforce colleague, Eva Kowalski, came out of the shadows between two upended stalls, her round glasses catching the work lamp. A worn leather satchel hung from one shoulder, full of books, and when she moved the spines shifted inside with a soft, papery rustle. Her curly red hair had escaped its pins, and she tucked a curl behind her left ear, smoothing a line of freckles across her nose. She looked young enough to be mistaken for a student, but her green eyes were far from naïve in that low light. “Before you say it,” Eva added, “I’m not the one who put that knife in his hand.” “I wasn’t going to say anything.” Quinn did not rise. “The Home Office attached you?” “To the taskforce, yes.” Eva stopped close enough to be useful, not close enough to be a threat. “You don’t know where you are.” “I’m in an abandoned Tube station beneath Camden.” “You’re in the Veil Market. It only opens for people who carry a bone token, and it moves every full moon.” Eva gestured at the empty stalls. “This one sells things the Crown would rather not catalogue. Enchanted goods, banned alchemical substances, information. If you’re here because you think a dealer was knifed in a robbery, you’re looking at the wrong crime.” Quinn looked back at the body. “And what am I looking at?” Eva crouched, careful of the glass. “An anchor. When a rift opens, something has to hold it closed. The compass is the problem. It’s not just a compass. It’s a Veil Compass, made by a Shade artisan. It points to the nearest opening. It’s not pointing north. It’s pointing at the wall.” Quinn had noticed. The needle had been doing that from the moment she entered the platform, a fine vibration in the brass casing, the face etched with protective sigils so small they looked like scratches. The casing had a patina of verdigris, the color of old weather. She lifted it with the tips of her fingers. It was warm. The needle swung once, then held, pointing not toward the tunnel, not toward the ticket hall, not toward the body, but straight into a brick wall at the far end of the platform. “You’re telling me a dead man died because a compass pointed at a wall.” “I’m telling you a dead man died because something was trying to get through.” Quinn set the compass down and went back to the knife. It was a simple blade, no mark on the handle. The steel was clean. Not wiped clean, but never stained. The red pool beneath the arm was vivid, almost purple in the lamp, and it had a sheen that did not belong to dried blood. She touched the edge of it with the side of her glove. It bled a faint metallic tang into the air, sweet and chemical. “Alchemical dye,” she said. Eva’s eyebrows lifted. Quinn pointed to the broken vials around the pool. One lay on its side, its stopper missing, a red residue lining the lip. Another had a label scraped away, but a residue of green dust clung to the glass. The “blood” had not come from the man. It had come from the table, the vials, the broken instruments of whatever market had been here. The knife had been placed in the hand after the man was dead. The hand was stiff with rigor, but the fingers had not curled around the blade; they had been arranged over it. “Whoever this is,” Quinn said, “wanted a knife in his hand.” “Then maybe they didn’t want it to look like a murder,” Eva said. “Or maybe they wanted it to look like one and failed at basic anatomy.” Eva gave a thin smile. “You’re worse than I thought.” Quinn did not answer. She moved around the body, checking the floor. The market stalls had been upended, but the disturbance was wrong. Baskets had been knocked over, spilling glass jars and folded papers. Yet the chairs near the table were not scattered. They had been stacked neatly against the pillar, as if the place had been cleared after the fact. The dust on the floor told the same story. Footprints crossed the platform in several directions, but none led to the body. The red pool had a single set of prints around its edge, stopping abruptly and not continuing. She looked at the man’s boots. They were caked with a fine black sand that was not present anywhere else on the platform. Quinn knelt beside the nearest stall and found a box of bone tokens hanging from a nail: small, carved, worn smooth. One hook was empty. The break was fresh, a splinter pale and dry. “He entered with a token,” she said. “Or he was brought through one.” Quinn turned back to the body and saw what she had missed because she had been looking for a wound. The work lamp stood on a folding table to the left of the man. The light fell in a hard cone across the concrete. The table cast a shadow. Eva cast a shadow. The constable behind the barrier cast a shadow. The dead man did not. The thought landed in her mind with the quiet finality of a door closing. She shifted the lamp. The beam swung across the body, and still no shadow followed. The coat had no shadow. The open eyes had no shadow. The hand holding the clean knife had no shadow. Only the blood pool, the glass, and the compass cast shapes on the floor. Quinn straightened. Her pulse had not quickened, but her fingers tightened on the strap of her coat. She looked at Eva. “Your anchor.” Eva’s face changed. She stepped closer, then stopped. “You see it.” “Everything in this scene is a performance. The knife, the red, the broken glass, the missing token. It was staged to make me believe the death happened here.” Quinn’s voice stayed low, level, the kind of voice that had kept rooms quiet when other people shouted. “The victim was either murdered elsewhere and brought back to be displayed, or he never died here at all. The body is a lure.” “It’s not a body,” Eva whispered. Quinn looked down. The man’s open eyes seemed to hold the light. The pupils were still drawn tight. The skin was cold, but not cold in the way of death; it was cold in the way of stone. She thought of Morris, three years gone, a case that had ended with a file that no one would open and a partner whose last report contained words that made no sense. The rational answer had been grief, then procedure, then silence. “The compass,” Quinn said. Eva nodded. Quinn picked up the brass instrument again. The needle was pointing into the wall. She turned it. The needle resisted, swung back, and began to tremble harder. From behind the brick, so faint it might have been the station settling, came a sound like a long exhale. The dust on the floor lifted in a thin line and drifted toward the wall. Quinn followed the line. It led to a hairline seam in the bricks, a rectangle that was not quite a door and not quite a crack. The air around it smelled of ozone and cold iron. A patch of the concrete in front of it was worn smooth, but not by foot traffic. It was worn as if something had been opening and closing there for a long time. “The market moves every full moon,” Quinn said. “This one shouldn’t be here yet.” “No,” Eva said. “It should be beneath Southwark.” “Then this isn’t the market.” Quinn’s gaze moved from the worn concrete to the bone token on the hook, the fresh splinter, the compass, the shadowless body. “It’s the trap.” The needle in the brass casing shuddered. The hairline seam in the wall widened by the width of a nail, and the dark inside it was not dark. It was deep. Quinn took a step backward, her worn leather watch ticking on her left wrist, and made her first order of the night. “No one touches that body. No one touches that wall. And if anyone else in this station says that was a robbery, I want them in front of me.” She looked at Eva, whose hand had gone to the books in her satchel. “Now. What does the compass do?” But before Eva could answer, the shadowless hand on the concrete turned.
created_at"2026-09-03T16:09:53.284Z" 9/3/2026, 4:09:53 PM
model"qwen/qwen3.8-27b-20260814"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency228
moderation_latency(null)
generation_time243597
tokens_prompt896
tokens_completion11717
native_tokens_prompt943
native_tokens_completion10970
native_tokens_completion_images(null)
native_tokens_reasoning9015
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"stop"
service_tier(null)
usage0.02819982
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
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request_id"req-1788451793-YMnhdcAtJSAjlmZdjInk"
session_id(null)
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api_type"completions"
id"gen-1788451793-OEjErmaU5BbrxT8OTizN"
upstream_id"chatcmpl-55aca40c-a217-402e-adc0-d36c822e1a6f"
provider_responses
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is_byokfalse
latency228
model_permaslug"qwen/qwen3.8-27b-20260814"
provider_name"Reka"
status200
total_cost0.02819982
cache_discount(null)
upstream_inference_cost0
provider_name"Reka"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags16
adverbTagCount1
adverbTags
0"Eva stopped close [close]"
dialogueSentences40
tagDensity0.4
leniency0.8
rawRatio0.063
effectiveRatio0.05
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1902
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
89.48% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1902
totalAiIsms4
found
0
word"etched"
count1
1
word"pulse"
count1
2
word"quickened"
count1
3
word"silence"
count1
highlights
0"etched"
1"pulse"
2"quickened"
3"silence"
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
narrationSentences129
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount2
narrationSentences129
filterMatches
0"watch"
hedgeMatches
0"seemed to"
1"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences151
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen48
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1902
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions17
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions44
wordCount1494
uniqueNames8
maxNameDensity1.47
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Quinn"
discoveredNames
Harlow1
Quinn22
Camden1
London1
Tube1
Eva16
Kowalski1
Morris1
persons
0"Harlow"
1"Quinn"
2"Eva"
3"Kowalski"
4"Morris"
places
0"London"
globalScore0.764
windowScore0.667
95.65% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences92
glossingSentenceCount2
matches
0"looked like scratches"
1"not quite a door and not quite a crack"
2"not quite a crack"
0.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches5
per1kWords2.629
wordCount1902
matches
0"not peaceful but frozen, the eyes open"
1"not toward the tunnel, not toward the ticket hall, not toward the body, but straight into a brick wall at the far end of the platform"
2"not toward the ticket hall, not toward the body, but straight into a brick wall at the far end of the platform"
3"not toward the body, but straight into a brick wall at the far end of the platform"
4"Not wiped clean, but never stained"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences151
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs52
mean36.58
std32.1
cv0.877
sampleLengths
0108
177
223
316
429
531
674
7115
82
992
1017
1115
1224
138
1462
1512
1652
1759
1833
1914
2014
2180
224
233
2498
2511
2613
2714
2810
29100
3057
317
326
3320
3446
3514
3649
3723
3811
3970
406
4180
424
432
4462
4569
4614
478
4830
4931
67.18% Passive voice overuse
Target: ≤2% passive sentences
passiveCount14
totalSentences129
matches
0"been sealed"
1"been reopened"
2"been rigged"
3"been told"
4"been pulled"
5"was tucked"
6"been soaked"
7"been placed"
8"been arranged"
9"been upended"
10"been knocked"
11"been stacked"
12"been cleared"
13"were caked"
14"was worn"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs231
matches
0"was pointing"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount2
flaggedSentences2
totalSentences151
ratio0.013
matches
0"The hand was stiff with rigor, but the fingers had not curled around the blade; they had been arranged over it."
1"The skin was cold, but not cold in the way of death; it was cold in the way of stone."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1498
adjectiveStacks0
stackExamples(empty)
adverbCount45
adverbRatio0.030040053404539385
lyAdverbCount10
lyAdverbRatio0.006675567423230975
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences151
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences151
mean12.6
std9.45
cv0.75
sampleLengths
025
131
229
39
414
516
624
720
88
95
104
1112
1211
1313
143
1529
1618
1713
186
1916
2018
2118
225
2311
245
257
2610
279
2821
2911
302
312
3248
332
3421
3524
3625
3722
3817
3910
405
4118
426
438
4427
4535
466
476
486
4946
36.09% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats21
diversityRatio0.2847682119205298
totalSentences151
uniqueOpeners43
28.74% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences116
matches
0"Only the blood pool, the"
ratio0.009
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount30
totalSentences116
matches
0"Her closely cropped salt-and-pepper hair"
1"It was no longer damp"
2"His coat was too good"
3"His boots were too clean."
4"His shoes were not."
5"Her first thought was the"
6"She lifted the canvas edge"
7"Her taskforce colleague, Eva Kowalski,"
8"Her curly red hair had"
9"She looked young enough to"
10"She lifted it with the"
11"It was warm."
12"It was a simple blade,"
13"She touched the edge of"
14"It bled a faint metallic"
15"It had come from the"
16"She moved around the body,"
17"They had been stacked neatly"
18"She looked at the man’s"
19"They were caked with a"
ratio0.259
11.72% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount104
totalSentences116
matches
0"Detective Harlow Quinn descended the"
1"Her closely cropped salt-and-pepper hair"
2"It was no longer damp"
3"The abandoned Tube station had"
4"Tonight it had been reopened,"
5"The police tape sagged between"
6"A single lamp had been"
7"His coat was too good"
8"His boots were too clean."
9"His shoes were not."
10"Quinn touched her sharp jaw,"
11"The constable’s face had the"
12"Quinn stepped past him and"
13"The canvas had been pulled"
14"A man, perhaps thirty, lay"
15"A short blade was tucked"
16"A small brass compass lay"
17"Quinn knelt, slow and deliberate."
18"Her first thought was the"
19"The skin at his temple"
ratio0.897
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences116
matches(empty)
ratio0
72.60% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences61
technicalSentenceCount6
matches
0"Detective Harlow Quinn descended the service stairwell beneath Camden with the military precision of a woman who had learned early that wasted motion invited di…"
1"Beyond it, the platform stretched into shadow, its pillars black with age, its tracks lost in a tunnel that breathed in slow, unnatural drafts."
2"No mark that explained the knife, the red, or the set of the man’s face, which was not peaceful but frozen, the eyes open and the pupils drawn tight as if he ha…"
3"The red pool beneath the arm was vivid, almost purple in the lamp, and it had a sheen that did not belong to dried blood."
4"One lay on its side, its stopper missing, a red residue lining the lip."
5"It was worn as if something had been opening and closing there for a long time."
93.75% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags16
uselessAdditionCount1
matches
0"Eva stopped close, not close enough to be a threat"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags9
fancyCount2
fancyTags
0"Eva added (add)"
1"Eva whispered (whisper)"
dialogueSentences40
tagDensity0.225
leniency0.45
rawRatio0.222
effectiveRatio0.1
82.0630%