Run: 2026-07-09-01KX40RCWJ9DSMEC626W22HFEA

Run Details

Duration:
34.7s
Cost:
$0.043292
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
The old Tube station lay beneath Camden like a rotten tooth left in the gum. Tile walls sweated black water. The station sign had lost most of its letters; only AMDE clung to the curve above the ticket hall. Beyond the police tape, stalls crouched in the dark beneath patched tarpaulins and strings of coloured bulbs. Jars of teeth. Bottles filled with smoke. A woman with a fox’s skull for a face watched from behind a counter of silver charms until a uniform barked at her to move on. Detective Harlow Quinn ducked beneath the tape and let the smell settle in her nose. Copper. Wet brick. Burnt rosemary. Her leather watch strap pressed against her wrist as she checked the time. Twenty-three minutes past two. Her team had reached the scene before the Market cleared out, which counted as a small miracle. Detective Sergeant Leonard Pike waited by the body with both hands shoved into the pockets of his raincoat. He looked too clean for the station. His shoes had picked up grey dust, but his cuffs still shone white beneath his sleeves. “You took your time,” Pike called. Quinn looked at the constable guarding the rusted gate behind them. “Your officers spent ten minutes arguing that my warrant didn’t cover a market which officially doesn’t exist.” Pike’s mouth pulled sideways. “Fair complaint.” The dead man lay on his back between a stall selling bird cages and a canvas sheet spread with yellowed books. Someone had arranged his hands over his chest. His fingers clasped a small brass compass. At first glance, he looked peaceful. At second glance, Quinn saw the skin around his mouth. It had darkened to the colour of old bruises. His lips had shrunk from his teeth. Grey powder crusted his nostrils and filled the hollow of one ear. Dr Anika Vale knelt near his shoulder, her dark hair tucked beneath a disposable cap. She kept her gloves clear of the compass. “Name?” Quinn asked. “Rory Bell. Forty-six. Licensed dealer in antiquities, unlicensed dealer in most things worth stealing.” Vale held out a property bag containing a wallet and a set of keys. “His identification matched the name the stallholders gave us.” “Cause?” “Not until I opened him up.” “First impression.” Vale glanced at Pike. “First impressions got people into trouble.” Pike drew one hand from his coat and pointed at the dead man’s face. “Poison. The bloke sold contraband tinctures. One of his customers got cheated, slipped something into his drink, and Bell keeled over. The crowd panicked. End of story.” Quinn crouched beside Bell. She kept her knees clear of a chalk-white circle marked on the platform floor. It ringed the body in uneven strokes, broken near his left boot. “Where was he found?” “Right there,” Pike answered. “The chap with the horned head swears he saw Bell collapse.” “The chap with the horned head has a name.” “Mr Morrow. He runs the cage stall.” Quinn studied Bell’s clothes. Expensive wool coat, green waistcoat, silk tie printed with tiny gold keys. His pocket square had been folded into a sharp triangle. No spatter. No torn fabric. A black mark ran beneath the collar of his shirt, thin as a necklace. She leaned closer. The mark had not rested on the skin. It had sunk into it. “Did you photograph him before anyone touched the body?” Pike’s nostrils flared. “Yes.” “Did anybody touch the body?” “No.” Quinn held out her hand to Vale. “Light.” Vale passed her a narrow torch. Quinn angled the beam over Bell’s knuckles. Fine cuts crossed the pads of his fingers. The wounds had bled, then stopped. Grey grit sat inside each slice. “His hands weren’t arranged after he died,” Quinn murmured. Pike looked down. “Why not?” “Blood had seeped through the cuts into his palms. Whoever folded them did it while his heart still worked.” “You thought he was poisoned.” “I thought you wanted him poisoned.” Pike crouched opposite her. “I wanted a clean answer in a place where people sell bottled nightmares beside the bloody souvenirs.” Quinn looked past him at the crowd gathered behind the tape. Faces peered from shadow. Some human. Some not. A boy in a school blazer held a jar that contained a thumb floating in amber. An old woman with blue lips crossed herself each time a police officer walked by. “A clean answer doesn’t make the facts cleaner,” Quinn replied. The brass compass lay trapped in Bell’s hands. Verdigris crept around its rim. Protective sigils crowded the face, each one cut so deep that darkness filled the grooves. Its needle quivered beneath the cloudy glass. North lay behind Quinn’s right shoulder. The needle pointed straight at Bell’s throat. Pike followed her gaze. “Fancy trinket. Somebody probably planted it.” “Who found it?” “Morrow.” “Where is he?” Pike jerked his chin towards the cage stall. “Constable Webb has him.” Quinn stood and walked to the stall. The cages hanging from its ceiling turned slowly on their hooks. Most stood empty. One held a pale rat with red eyes. Another contained a black bird with no feathers on its head. It opened its beak when Quinn approached, but no sound came out. Mr Morrow sat on an overturned crate, wrists cuffed in front of him. Curled horns swept back from his temples through a mane of coarse brown hair. His eyes, round and gold, fixed on Quinn without blinking. “You had no right to close the Market,” he growled. “People came here under protection.” “Rory Bell died under it,” Quinn replied. “Start with when you found him.” Morrow looked at the body, then at the compass. “He came to my stall around midnight. He wanted a cage.” “A cage?” “The iron one. Small. Old. It had belonged to a monk.” “Why did he want it?” “He didn’t tell me why. Bell never told anybody anything unless the answer earned him money.” “Did he buy it?” “No. He examined the lock. His hands shook. Then he saw someone at the end of the platform and went after them.” “Who?” Morrow’s ears twitched. “I didn’t see.” Quinn watched him scratch at the cuff with a blunt black nail. “You saw enough to find the body.” “The lights went out. The Market went quiet.” “Quiet?” “The sound vanished.” Morrow swallowed. “Not silence. Silence still has breathing in it. This had nothing.” The constable at his shoulder shifted his weight. Quinn kept her eyes on Morrow. “How long?” “A few seconds. I heard something scrape across the tiles. When the lights returned, Bell lay there.” “Alive?” “I didn’t touch him.” “That wasn’t my question.” Morrow’s gold eyes narrowed. “His chest moved once.” Quinn turned away before Pike could interrupt. The constable’s face had gone pale. She led Pike beyond the edge of the crowd, towards an abandoned ticket window whose glass had shattered decades before. “You didn’t put that in your report,” she said. “He told Webb after he’d already given us three versions of it.” “He told us Bell was alive when he reached him.” “He described some blackout nonsense.” “You saw the circle?” “Chalk.” Quinn looked back at the body. “No. Chalk sits on top of dust. This has been rubbed in.” Pike folded his arms. “So a killer drew a circle around him and did what? Cursed him to death?” “Your victim sold objects in a market accessed through a disused railway station. You don’t get to sneer at odd details because they make paperwork difficult.” “You sound as though you believe this rubbish.” “I believe somebody wanted us to look at poison.” Quinn walked the perimeter of the scene. The white circle measured just over six feet across. Its line passed beneath Bell’s shoulders, boots, and left elbow. The break near his boot did not look accidental. Three chalk strokes ended there, each smudged by the tread of a shoe. She crouched again. The platform dust held dozens of overlapping prints: police boots, stallholders’ shoes, bare feet, hoof marks. Most stopped outside the circle. Inside it, Bell’s polished shoe soles had left only two marks. One beneath his right heel. One near his left toe. No scuffs. No drag marks. No arc from a collapse. Quinn took a photograph, then another with the evidence scale. Pike stood over her shoulder. “What?” “He didn’t fall here.” “He’s lying there.” “Bodies can move.” “Not without somebody carrying them. This place was packed.” Quinn pointed to Bell’s trousers. Dust coated the knees and the right side of his coat. His back remained clean except for a thin line of reddish grit from shoulder to hip. “He was on the ground somewhere else. He got dragged over one surface, carried over another, then placed inside that circle. Whoever moved him knew how to avoid the crowd.” Pike looked along the platform. “There’s nowhere private.” Quinn turned towards the dark tunnel at the far end of the station. A chain blocked the entrance. Plastic tape hung from it, fluttering despite the stale air. The tunnel mouth swallowed the beam from the overhead bulbs. No stallholder had set up near it. No curious faces lingered there. “What’s down that line?” she asked. “Collapsed tunnel,” Pike answered. “Network Rail records call it sealed.” “Records.” “You think the killer took him through a wall?” “I think someone came through that tunnel.” Pike barked a laugh, then caught sight of her expression and stopped. Quinn returned to Bell’s body. The compass needle still trembled, tapping the inside of the glass with a tiny, frantic tick. She hooked two fingers beneath the dead man’s clasped hands and eased them apart. Pike stepped forward. “Careful.” “Dr Vale photographed it.” The compass came free with less resistance than she expected. Bell’s fingers had been pressed around it, but not tightly. Quinn set it on the tile beside him. The needle spun. Once. Twice. Then it settled towards the tunnel. Pike stared at it. “Magnets,” he muttered. “Someone put a magnet in the wall.” Quinn raised the compass and moved it along the edge of the chalk circle. The needle held firm. She stepped outside the ring. It swung back towards the tunnel. She moved towards Bell’s head. The needle jerked down. Not at the tunnel. At the dark line beneath his collar. Quinn handed the compass to Vale. “Hold it above his throat.” Vale did. The needle shuddered, then pointed straight down. Pike’s face tightened. “What is that mark?” Quinn opened her evidence kit and took out a pair of fine forceps. She slipped one tip beneath the edge of Bell’s collar and lifted it. The black line continued around his neck. Not a bruise. Not a burn. A seam. Thin stitches, black as wire, ran from the hollow beneath his left ear to the right. The thread had entered his skin at regular intervals. Someone had sewn something beneath it. Vale bent closer, torch in hand. “That wound was fresh.” “Could it have been made during a struggle?” Pike asked. “Not like that.” Vale’s voice lost its usual calm. “The stitches are too precise. And look at the tissue. There’s no swelling.” Quinn watched the compass needle rattle against its glass. “Bell didn’t die where the circle was drawn,” she said. “He didn’t die from a drink, either.” Pike’s jaw worked. “What did they put in him?” A drop of black fluid gathered at one stitch beneath Bell’s jaw. It swelled, glossy as oil, then slid down his throat. The compass needle snapped towards the tunnel hard enough to strike the glass. Quinn looked at the broken chain across the tunnel entrance. Fresh rust had been scraped from one link. On the tiles beneath it, half-hidden by old soot, a trail of reddish dust led into the dark.
created_at"2026-07-09T18:03:07.034Z" 7/9/2026, 6:03:07 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2961
moderation_latency(null)
generation_time34512
tokens_prompt1149
tokens_completion3301
native_tokens_prompt1009
native_tokens_completion2718
native_tokens_completion_images0
native_tokens_reasoning165
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"
usage0.0432925
router(null)
provider_responses
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endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_0d5bfea98e54ae85016a4fe25b1c6481939ea5a9302cd6f184"
is_byokfalse
latency265
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-1783620187-hiQbQ6KlFS2WHYiNPGIo"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620187-WzqsXy6556bbXKHxVetH"
upstream_id"resp_0d5bfea98e54ae85016a4fe25b1c6481939ea5a9302cd6f184"
total_cost0.0432925
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
totalTags17
adverbTagCount0
adverbTags(empty)
dialogueSentences94
tagDensity0.181
leniency0.362
rawRatio0
effectiveRatio0
94.90% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1962
totalAiIsmAdverbs2
found
0
adverb"slowly"
count1
1
adverb"tightly"
count1
highlights
0"slowly"
1"tightly"
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)
79.61% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1962
totalAiIsms8
found
0
word"silk"
count1
1
word"quivered"
count1
2
word"silence"
count2
3
word"weight"
count1
4
word"shattered"
count1
5
word"measured"
count1
6
word"trembled"
count1
highlights
0"silk"
1"quivered"
2"silence"
3"weight"
4"shattered"
5"measured"
6"trembled"
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
emotionTells0
narrationSentences171
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences171
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences249
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen30
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1962
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions17
unquotedAttributions0
matches(empty)
16.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions92
wordCount1313
uniqueNames13
maxNameDensity2.36
worstName"Quinn"
maxWindowNameDensity4.5
worstWindowName"Quinn"
discoveredNames
Tube1
Camden1
Harlow1
Quinn31
Market1
Sergeant1
Leonard1
Pike23
Anika1
Vale9
Bell13
Morrow6
One3
persons
0"Camden"
1"Harlow"
2"Quinn"
3"Market"
4"Sergeant"
5"Leonard"
6"Pike"
7"Anika"
8"Vale"
9"Bell"
10"Morrow"
places
0"One"
globalScore0.319
windowScore0.167
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences101
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1962
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences249
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs164
mean11.96
std12.77
cv1.067
sampleLengths
089
115
25
334
441
56
611
717
84
92
1036
116
1210
1328
1423
153
1637
171
186
192
204
216
2214
2327
2430
254
2615
279
287
2945
303
3113
329
333
341
355
361
377
381
3933
409
413
422
4319
445
456
4621
4750
4810
4935
99.11% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences171
matches
0"been folded"
1"been pressed"
2"been scraped"
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
semicolonCount1
flaggedSentences1
totalSentences249
ratio0.004
matches
0"The station sign had lost most of its letters; only AMDE clung to the curve above the ticket hall."
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount945
adjectiveStacks1
stackExamples
0"North lay behind Quinn’s"
adverbCount17
adverbRatio0.01798941798941799
lyAdverbCount2
lyAdverbRatio0.0021164021164021165
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences249
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences249
mean7.88
std5.4
cv0.685
sampleLengths
015
15
219
317
43
54
626
715
81
92
102
1113
124
1317
1418
157
1616
176
1811
1917
204
212
2221
238
247
256
2610
279
287
2912
3015
318
323
3328
349
351
366
372
384
396
4014
4127
424
4314
4412
454
464
4711
489
497
54.08% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats12
diversityRatio0.3534136546184739
totalSentences249
uniqueOpeners88
22.83% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences146
matches
0"Then it settled towards the"
ratio0.007
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount26
totalSentences146
matches
0"Her leather watch strap pressed"
1"Her team had reached the"
2"He looked too clean for"
3"His shoes had picked up"
4"His fingers clasped a small"
5"It had darkened to the"
6"His lips had shrunk from"
7"She kept her gloves clear"
8"She kept her knees clear"
9"It ringed the body in"
10"His pocket square had been"
11"She leaned closer."
12"It had sunk into it."
13"Its needle quivered beneath the"
14"It opened its beak when"
15"His eyes, round and gold,"
16"She led Pike beyond the"
17"Its line passed beneath Bell’s"
18"She crouched again."
19"His back remained clean except"
ratio0.178
69.59% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount114
totalSentences146
matches
0"The old Tube station lay"
1"Tile walls sweated black water."
2"The station sign had lost"
3"Jars of teeth."
4"Bottles filled with smoke."
5"A woman with a fox’s"
6"Detective Harlow Quinn ducked beneath"
7"Her leather watch strap pressed"
8"Her team had reached the"
9"Detective Sergeant Leonard Pike waited"
10"He looked too clean for"
11"His shoes had picked up"
12"Quinn looked at the constable"
13"Pike’s mouth pulled sideways."
14"The dead man lay on"
15"Someone had arranged his hands"
16"His fingers clasped a small"
17"It had darkened to the"
18"His lips had shrunk from"
19"Dr Anika Vale knelt near"
ratio0.781
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences146
matches(empty)
ratio0
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences55
technicalSentenceCount0
matches(empty)
95.59% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags17
uselessAdditionCount1
matches
0"The platform dust held, stallholders’ shoes, bare feet, hoof marks"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags13
fancyCount3
fancyTags
0"Quinn murmured (murmur)"
1"he growled (growl)"
2"he muttered (mutter)"
dialogueSentences94
tagDensity0.138
leniency0.277
rawRatio0.231
effectiveRatio0.064
87.5460%