Run: 2026-07-09-01KX40196NCGDV2TX776VME8HQ

Run Details

Duration:
30.2s
Cost:
$0.038238
Provider:
OpenAI

Model input

System
You are an expert fiction writer. Always keep the following rules in mind: - Write in past tense and use General English spelling, grammar, and colloquialisms/slang. - Write in active voice - Always follow the "show, don't tell" principle. - Avoid adverbs and cliches and overused/commonly used phrases. Aim for fresh and original descriptions. - Convey events and story through dialogue. - Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. - Skip "he/she said said" dialogue tags and convey people's actions or face expressions through their speech - Avoid mushy dialog and descriptions, have dialogue always continue the action, never stall or add unnecessary fluff. Vary the descriptions to not repeat yourself. - Put dialogue on its own paragraph to separate scene and action. - Reduce indicators of uncertainty like "trying" or "maybe" When writing text: - NEVER conclude the scene on your own, follow the beat instructions very closely. - NEVER end with foreshadowing. - NEVER write further than what I prompt you with. - AVOID imagining possible endings, NEVER deviate from the instructions. - STOP EARLY if the continuation contains what was required in the instructions. You do not need to fill out the full amount of words possible.
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <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> Continue the story using the following instructions: <instructions> 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. </instructions>

Model response

AI
Detective Harlow Quinn stood beneath the dead roundel of Camden Town Underground and watched rainwater drip through the broken roof in a steady line. It struck the platform edge, darkened the dust, and vanished between the rails. The station had been sealed before her father left school. Old posters peeled from tiled walls: a smiling woman selling cigarettes, a seaside resort with its blue sky faded to a diseased grey. Someone had dragged a modern work lamp down the stairs, its cable running through a service hatch and into blackness. Quinn checked her watch. 02:17. A uniformed constable waited beside the gate, pale beneath the fluorescent spill from the lamp. His hand hovered near the radio on his vest. “You got here fast.” “You told control there was a body in a disused Tube station.” “I told them that.” He glanced down the track. “Didn’t tell them about the rest.” Quinn lifted the police tape and ducked under it. “What rest?” The constable swallowed. “The station wasn’t here when I came down.” Quinn stopped. The young man’s cheeks coloured. “I mean, it was here. Obviously. The stairs were there.” He pointed towards the street entrance, hidden behind a corrugated construction hoarding. “But the door at the bottom opened onto a bricked-up corridor. I called it in. Then the wall wasn’t bricked up any more.” “Name?” “Constable Bell. Aidan Bell.” “Have you touched anything, Bell?” “No.” “Have you let anyone leave?” “No.” “Then start again. From the first thing you saw. Leave out what you think it meant.” Bell took a breath through his nose. “At one forty-nine, a woman flagged down our car on Camden High Street. Red hair, glasses, carrying a big leather bag. She said somebody had been killed underground. She handed me this.” He held out a white handkerchief. Something small rested in its centre: a finger bone, polished smooth and carved with a black mark that resembled an eye stitched shut. Quinn did not touch it. “Where’s the woman?” Bell pointed along the platform. Eva Kowalski crouched near the body with her worn leather satchel open beside her. Books crowded the cracked concrete around her knees. Her curly red hair had escaped its knot, and one hand kept returning to tuck it behind her left ear. “Over there.” “Who is she?” “She gave her name. Eva Kowalski. Said she worked at the British Museum.” “Did you verify it?” “No signal down here.” Quinn looked at the single bar on her phone. “No signal because we’re underground.” Bell’s eyes tracked to the empty tunnel. “That’s not why.” Quinn left him at the tape and walked along the platform. The body lay on its back beside a peeling advertisement for Bovril. Male, late fifties, heavyset. His coat had been expensive once, camel wool blackened at the cuffs. A silver signet ring dug into one fist. His other hand remained open, palm up, as if he had dropped something and expected it to return. A pathologist’s evidence marker stood beside his head, though no pathologist had arrived. Quinn looked over her shoulder. “Who put that there?” Eva raised her hand without looking up from the notebook on her knee. “I did. I found it in a canvas bag by the ticket office. There were more.” “Don’t move evidence.” “I didn’t know you were coming.” “You knew the police were coming.” Eva’s green eyes met hers through round glasses. The girl looked exhausted, not frightened. Her freckled face held the pinched, stubborn expression of somebody who had spent years being dismissed by people with badges. “I knew Constable Bell was coming. I assumed he would want to know where the head was.” Quinn stared at the empty neck. The cut ran neat across the man’s throat. No torn flesh. No ragged cartilage. A clean horizontal line, as if the head had been removed with a single stroke from something impossibly sharp. Bell had not mentioned that. Quinn crouched. The air around the corpse carried the scent of wet stone, old pennies, and burnt rosemary. Blood had pooled beneath the shoulders, but it did not spread across the platform. It stopped in a smooth dark circle, held within a ring of white powder. Salt. Not kitchen salt. The grains shone blue in the work lamp’s glare. “You made the circle?” Quinn asked. “No.” Eva shut her notebook. “It was already there.” “Then why are you inside it?” “Because there’s no blood on the other side.” Quinn’s eyes moved over the body. Blood had soaked the dead man’s collar, his shirtfront, the inner lining of his coat. The circle contained it all. Not one splash reached the cracked platform tiles outside the salt. “That proves nothing,” Quinn said. “It proves he wasn’t killed where he was found.” “Blood can be contained.” “By salt?” “By a plastic sheet. By a tray. By someone carrying him.” Eva pointed to the corpse’s left shoe. “Look at the sole.” Quinn leaned closer. The leather had picked up a fine dust, grey and gritty. The same dust coated the knees of his trousers, though the man lay on his back. There were no scuffs on the platform around him. No drag marks. No heel marks. No disturbed grime. “He was on his knees somewhere else,” Eva said. “Then he arrived here after he died.” “Arrived?” “You saw the doorway at the top, didn’t you?” Quinn looked down the platform, towards the shadowed stairs. “I saw an abandoned station.” Eva’s mouth tightened. “Not what I asked.” Quinn stood. “Who is he?” “Malcolm Vane.” That name landed with weight. Quinn had seen it on fraud reports, in a string of offshore holdings, on the board of a property development firm that seemed to acquire condemned buildings days before they burned down. “Vane’s dead?” Bell called from the far end. “Keep your voice down,” Quinn snapped. Eva lifted a brown leather wallet from an evidence bag. “I found identification in his inside pocket. There’s also a membership card for the Thanatos Club, a key to a safety deposit box, and fifty pounds in old notes.” “Old notes?” “Paper twenties. Withdrawn from circulation eight years ago.” Quinn held out her hand. Eva passed the bag over. The wallet looked untouched. No blood marked it. No moisture warped the cards. “Did you open it?” “Yes.” “Why?” “To identify the body.” “That’s my job.” “You weren’t here.” The answer came without heat. That irritated Quinn more than an argument would have. She stepped around the salt ring and inspected the platform. The lamp cast hard-edged shadows. Near the wall, a row of wooden stalls filled the old station where ticket barriers should have stood. Most were shuttered. Their signs had been painted over, but Quinn could make out letters beneath the flaking black: BONE & BRASS. REMEDIES. LOST HOURS. A woman in a fox-fur collar watched from behind a lattice window. Her skin had the waxy sheen of a shop mannequin. When Quinn looked directly at her, the shutter dropped. “This isn’t a station,” Quinn said. Eva put a hand over the open satchel. “It is tonight.” Bell hurried closer, boots loud on the concrete. “Detective. There are people in the tunnels.” “Witnesses?” “They won’t talk to me.” “Then bring them up one at a time.” “I don’t think—” “Constable.” Bell stopped. “Right.” He moved towards the tunnel entrance, calling out with more authority than he possessed. Quinn watched two figures retreat into the dark instead of approaching. One wore a velvet coat that brushed the ground. The other had no visible face beneath a hood. Eva shoved a book back into her satchel. “You shouldn’t send him down there.” “You want to tell me how to do my job?” “No. I want you to keep him alive.” Quinn’s stare hardened. “You called the police.” “I called because Malcolm Vane’s death affected more than the people down here.” “What did he do?” Eva looked at the headless body. “He bought things nobody should own.” “That narrows it down.” “Names. Memories. A child’s fever, bottled and sold to someone who wanted to fake an illness. He also purchased access to old crossings.” “Crossings to where?” Eva’s hand slipped beneath the flap of her satchel. Quinn caught her wrist. Eva flinched, then faced her. “You came here carrying a bone token,” Quinn said. “You knew this place existed.” “Yes.” “You knew Vane?” “No.” “You knew what killed him?” “No.” “That was a lie.” Eva’s pupils narrowed behind the glass lenses. “It was not.” Quinn held her wrist another moment, then released it. Eva rubbed the red marks left by Quinn’s fingers. “Show me what you’re hiding.” Eva reached into the satchel and brought out a small brass compass. Verdigris mottled its casing. Protective sigils crowded the face in tiny, precise scratches. The needle spun so fast it gave off a faint metallic whine. Quinn took it before Eva could close her hand around it. “What is this?” “A Veil Compass.” “Does it point north?” “It points towards the nearest rift.” Quinn looked at her. Eva swallowed. “A tear. A doorway where it shouldn’t be.” The needle jerked and settled. It pointed at Malcolm Vane’s open hand. Quinn crouched again. The dead man’s palm held a faint indentation, round and shallow. Dust gathered around it but not within it, leaving the clean outline of something coin-sized. “Something was taken,” she said. “Yes.” “What?” “If I knew that, I would not be standing here.” Quinn held the compass near the corpse. The needle trembled but kept its aim fixed on the empty hand. Then she noticed the man’s ring. It was silver, thick, engraved with a crest: a black gate beneath three stars. Blood had dried in the grooves. The ring sat crooked, as if someone had twisted it after death. She pinched his knuckles and turned the hand. A thin line of red crossed the base of his thumb. Not blood. Ink. Quinn leaned close enough for the stink of rosemary ash to fill her nose. The line formed half a symbol, hidden beneath the ring. She pulled a pair of gloves from her pocket, tugged them on, and worked the ring free. Vane’s fingers resisted. The skin had begun to stiffen. The signet came away with a wet sound. Underneath, someone had written on his palm in a dense black script. The letters had been smeared where he clenched his fist, but Quinn recognised the shape of a number. Not a number. A time. 02:17. Her leather watchband pressed against her wrist. Eva leaned in, then stopped at the edge of the salt. “What is it?” Quinn turned Vane’s hand towards the lamp. “Someone wanted us here at this exact minute.” The Veil Compass needle snapped hard to the left. Not towards the corpse. Not towards the tunnel. It pointed straight at Detective Harlow Quinn.
created_at"2026-07-09T17:50:29.597Z" 7/9/2026, 5:50:29 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency442
moderation_latency(null)
generation_time30085
tokens_prompt1149
tokens_completion3068
native_tokens_prompt1009
native_tokens_completion2381
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.0382375
router(null)
provider_responses
0
endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_04987aac4c169784016a4fdf65ab408194818ccba65516e640"
is_byokfalse
latency218
model_permaslug"openai/gpt-5.6-terra-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783619429-sNJTHXrofqZhNcvY4NXq"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783619429-d7ZCycQ3wlojNjN0Mzth"
upstream_id"resp_04987aac4c169784016a4fdf65ab408194818ccba65516e640"
total_cost0.0382375
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags11
adverbTagCount0
adverbTags(empty)
dialogueSentences100
tagDensity0.11
leniency0.22
rawRatio0
effectiveRatio0
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1810
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)
91.71% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1810
totalAiIsms3
found
0
word"weight"
count1
1
word"velvet"
count1
2
word"trembled"
count1
highlights
0"weight"
1"velvet"
2"trembled"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"clenched jaw/fists"
count1
highlights
0"clenched his fist"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences150
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences150
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences239
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen33
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1810
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions14
unquotedAttributions0
matches(empty)
0.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions82
wordCount1233
uniqueNames15
maxNameDensity3
worstName"Quinn"
maxWindowNameDensity5.5
worstWindowName"Quinn"
discoveredNames
Harlow2
Quinn37
Camden1
Town1
Underground1
Bell7
Kowalski1
Bovril1
Eva20
Malcolm1
Vane3
Veil1
Compass1
Detective2
Blood3
persons
0"Harlow"
1"Quinn"
2"Bell"
3"Kowalski"
4"Eva"
5"Malcolm"
6"Vane"
7"Blood"
places
0"Camden"
1"Town"
2"Underground"
3"Detective"
globalScore0
windowScore0
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences91
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1810
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences239
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs157
mean11.53
std12.67
cv1.099
sampleLengths
037
153
25
324
44
512
615
79
82
911
102
115
1245
131
144
155
161
175
181
1916
2039
216
2223
235
243
255
2642
272
283
2913
304
314
3214
3310
3411
3554
3613
375
384
3929
403
416
426
4334
4417
456
4633
475
4846
491
91.23% Passive voice overuse
Target: ≤2% passive sentences
passiveCount6
totalSentences150
matches
0"been sealed"
1"being dismissed"
2"been removed"
3"were shuttered"
4"been painted"
5"been smeared"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs215
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences239
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1236
adjectiveStacks0
stackExamples(empty)
adverbCount17
adverbRatio0.013754045307443365
lyAdverbCount3
lyAdverbRatio0.0024271844660194173
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences239
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences239
mean7.57
std5.74
cv0.759
sampleLengths
024
113
210
323
420
54
61
715
89
94
1012
119
126
139
142
153
168
172
185
1922
2023
211
224
235
241
255
261
2716
287
2932
306
3123
325
333
345
3514
368
3720
382
393
4013
414
424
439
445
457
463
4711
4812
494
44.94% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats12
diversityRatio0.2911392405063291
totalSentences237
uniqueOpeners69
25.64% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences130
matches
0"Then she noticed the man’s"
ratio0.008
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount20
totalSentences130
matches
0"It struck the platform edge,"
1"His hand hovered near the"
2"He glanced down the track"
3"He pointed towards the street"
4"He held out a white"
5"Her curly red hair had"
6"His coat had been expensive"
7"His other hand remained open,"
8"Her freckled face held the"
9"It stopped in a smooth"
10"She stepped around the salt"
11"Their signs had been painted"
12"Her skin had the waxy"
13"He moved towards the tunnel"
14"It pointed at Malcolm Vane’s"
15"It was silver, thick, engraved"
16"She pinched his knuckles and"
17"She pulled a pair of"
18"Her leather watchband pressed against"
19"It pointed straight at Detective"
ratio0.154
44.62% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount108
totalSentences130
matches
0"Detective Harlow Quinn stood beneath"
1"It struck the platform edge,"
2"The station had been sealed"
3"Someone had dragged a modern"
4"Quinn checked her watch."
5"A uniformed constable waited beside"
6"His hand hovered near the"
7"He glanced down the track"
8"Quinn lifted the police tape"
9"The constable swallowed."
10"The young man’s cheeks coloured."
11"He pointed towards the street"
12"Bell took a breath through"
13"He held out a white"
14"Something small rested in its"
15"Quinn did not touch it."
16"Bell pointed along the platform."
17"Eva Kowalski crouched near the"
18"Books crowded the cracked concrete"
19"Her curly red hair had"
ratio0.831
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences130
matches(empty)
ratio0
98.21% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences48
technicalSentenceCount3
matches
0"Something small rested in its centre: a finger bone, polished smooth and carved with a black mark that resembled an eye stitched shut."
1"Her freckled face held the pinched, stubborn expression of somebody who had spent years being dismissed by people with badges."
2"A clean horizontal line, as if the head had been removed with a single stroke from something impossibly sharp."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags11
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags8
fancyCount1
fancyTags
0"Quinn snapped (snap)"
dialogueSentences100
tagDensity0.08
leniency0.16
rawRatio0.125
effectiveRatio0.02
86.5449%