Run: 2026-07-09-01KX40NKB13SD0JGRZSBWD5FEY

Run Details

Duration:
16.8s
Cost:
$0.016360
Provider:
OpenAI

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="4412" name="Aurora Carter" aliases="Rory, Laila, Aurora, Carter, Malphora" pronouns="she/her" species="Human" storyRole="Protagonist"> <eyeColor>bright blue</eyeColor> <hair>straight shoulder-length black</hair> <height>5'6"</height> <age>25</age> <scar>small crescent-shaped scar on her left wrist from a childhood accident</scar> <description>Aurora, referred to by her friends as Rory, is cool-headed, intelligent, and known for quick out-of-the-box thinking.</description> <backstory>Born in Cardiff to an Irish barrister father (Brendan Carter) and Welsh teacher mother (Jennifer Carter née Ellis), Rory reluctantly pursued Pre-Law at Cardiff University. She fled to London at the behest of her childhood friend Eva after leaving an abusive ex named Evan. By day, Rory works part-time as a delivery person for Yu-Fei Cheung's Golden Empress restaurant. She lives in a flat above Silas' bar.</backstory> </character> <location id="861" name="The Fae Grove" aliases="Isolde's grove, Richmond grove, the Grove" realm="Earth (Fae-touched)"> <parkLocation>Richmond Park</parkLocation> <standingStones>ancient oak standing stones mark the boundary</standingStones> <timeBehavior>time moves differently — an hour inside can be minutes or days outside</timeBehavior> <flora>wildflowers bloom year-round</flora> <description>A hidden clearing that exists in a pocket between Earth and the Fae realm.</description> </location> <item id="2001" name="Heartstone Pendant" aliases="the pendant, Heartstone" type="Artifact" origin="Dymas"> <gemstoneColor>deep crimson</gemstoneColor> <chainMaterial>silver chain</chainMaterial> <size>roughly the size of a thumbnail</size> <behavior>pulses faintly with warmth when near a Hel portal</behavior> <glow>faint inner glow</glow> <description>Given to Aurora by an unknown benefactor.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the horror genre. A character is alone in a strange, isolated place at night. They came here for a reason, but something feels off from the moment they arrive. The wrongness builds slowly — sounds that shouldn't be there, things that move at the edge of vision, a growing certainty that they are not alone. Build tension through restraint, not through gore. Use the codex entries above as your world reference for the character and setting. Only include the prose of the scene without any markdown or commentary.

Model response

AI
Aurora Carter knew Richmond Park well enough to distrust it. In daylight, it was all broad grassland and deer trails, ancient trees standing with the patient grandeur of old witnesses. At night, the park lost its scale. The paths narrowed. The trees crowded close. Every pale trunk became a figure turned away from her, and every patch of open ground seemed to wait for something to cross it. She kept walking. The beam of her phone flashlight slid over wet grass, low brambles, and the dark humps of roots. Mist had gathered in the hollows, thin as breath. Her shoes were already damp through at the edges, and cold had climbed from the ground into her ankles. The pendant rested against her sternum beneath her jumper. It had been warm when she left the flat. Not body-warm. Warmer than that. A small, steady heat, as if someone had pressed a coin from a fire into her palm and closed her fingers around it. Now it pulsed against her skin at irregular intervals. Aurora stopped beneath an oak. The heat faded. She waited, holding her breath. Nothing moved except the grass. “Fine,” she whispered. “That’s comforting.” Her voice sounded too loud. It travelled between the trees and came back thin, altered by distance. She could almost hear another person saying the same word somewhere ahead. Fine. The pendant’s chain had been a gift from a stranger, though gift was generous. It had appeared in the pocket of her coat after a night she remembered only in fragments: rain on pavement, a man’s hand at her wrist, the sharp crescent scar there pulling white with pain. The pendant itself was a rough crimson stone, no larger than her thumbnail, set in dark metal. It gave off a faint inner glow when the light struck it. She had worn it because she didn’t know what else to do with it. Tonight, it had begun pulsing just after eleven. Rory had tried to ignore it. She had delivered the last order for the Golden Empress, climbed the stairs above Silas’ bar, and stood in her little kitchen while the stone beat against her chest. By midnight, the warmth had become impossible to dismiss. Not painful. Insistent. So she had come here. She had read enough scattered notes, heard enough half-joking warnings from people who stopped joking when they thought she wasn’t looking, to suspect that the pendant reacted to places where the world had worn thin. Hel portals, someone had called them. She still wasn’t sure whether that was a real term or a private bit of nonsense, but the pendant had pulsed harder as she approached Richmond Park. There had been no portal on the main paths. No shimmer. No glowing arch. No convenient supernatural doorway waiting beneath a signpost. Only the oaks. They stood in an uneven line at the edge of a low clearing, their trunks thick and black, their roots knotted through the earth. Aurora had seen them before, in photographs and once from a distance. Ancient standing stones, someone had said, though they looked more like trees pretending to be stones. Their bark was ridged and pale beneath the moss, their branches knitted together high overhead. The pendant burned now. She lifted it from beneath her jumper. The crimson stone throbbed faintly in her fingers, each pulse throwing a smear of red light across her knuckles. Beyond the oaks, wildflowers bloomed. They carpeted the clearing in impossible colour: blue bells, white starbursts, yellow cups, little red flowers like pinpricks of blood. It was November. The park should have been brown and stripped, the grass silvered with frost. Aurora stood at the boundary. The flowers did not move in the breeze. There was no breeze. Her first thought was that the clearing had been fenced off. Her second was that she should turn around and call Eva. Her third, which arrived quieter and more persuasive than the others, was that if she stepped between the trees, the pendant would tell her why it had brought her there. She checked her phone. 11:47 p.m. No signal. The screen showed the time for several seconds. Then the numbers flickered. 11:47. 11:46. 11:47. Aurora shut the phone off and started a timer. The display went black, then returned with a single frozen digit: 1. She pressed the button again. Nothing. Behind her, something cracked a twig. Aurora turned. The beam of the phone swept over the nearest oak, a scatter of bracken, and the path disappearing between the trees. There was no one there. She listened. A deer gave a low, throaty cough somewhere in the distance. The sound was wrong. Too deep, too wet, more like a person trying not to laugh. Aurora lowered the phone. “Not funny,” she said. The darkness did not answer. She stepped into the grove. The air changed first. It smelled of rain, though the clouds above had broken apart and shown a hard, clear sky. Then came the warmth. It touched her cheeks and slipped beneath her clothes, gentle as bathwater. Behind her, the standing stones creaked. Aurora looked back. The oaks had not moved. Their branches remained still. But the gap between two trunks seemed narrower than it had been, and the path beyond no longer appeared to lead toward the park. It ended in a wall of darkness. She told herself that she had misjudged the angle. She told herself a lot of things. The grove was larger than it looked from outside. The flowers stretched ahead in loose beds, separated by paths of black soil. A shallow stream cut through the clearing, though she could not see where it came from or where it went. Its surface reflected a sky full of stars. Aurora glanced up. There were no stars overhead. Only a pale moon and ragged cloud. She kept to the edge of the stream. The pendant was almost too hot to touch. Its glow showed through her fingers, a deep red pulse that seemed to illuminate the veins in her hand. With each beat, the flowers nearest her leaned toward it. Not toward her. Toward the stone. She stopped and tightened her grip. The flowers slowly lifted their faces. A sound came from the far side of the stream. Soft footsteps. One. Two. Three. They moved through the flowers without crushing them. Aurora’s mind assembled a person before her eyes found one: a man in a dark coat, perhaps a park ranger, perhaps someone who had followed her. The thought of another human being should have relieved her. It did not. The footsteps stopped. “Hello?” she called. Silence. She moved the phone’s beam across the opposite bank. White flowers. Black water. A bent willow with trailing branches. At the base of the willow stood a woman. Aurora’s breath caught. The woman faced away from her. She wore a long grey dress that hung straight to the ground, though there was no wind to move it. Her hair fell in a black sheet down her back. Aurora took one step closer. The woman’s head tilted. Not turned. Tilted, sharply, as if listening with an ear that had been placed too low. Aurora’s scar began to itch. She backed away from the stream. The woman remained still. “Are you lost?” Aurora asked. The words felt ridiculous as soon as they left her mouth. The woman’s bare feet were visible beneath the hem of the dress. They were planted in the flowers, toes pointed toward the water. A reply came from behind Aurora. “Yes.” She spun around. No one. The voice had been close enough to touch her ear. Her phone slipped in her hand. She caught it and shone the light into the darkness between the trees. The beam stopped at a curtain of mist. Something moved behind it, tall and narrow, withdrawing just beyond the reach of the light. Aurora’s pulse hammered. She forced herself to breathe through her nose. In for four. Hold. Out for four. The sensible explanation was that someone was playing a trick. The grove could be some kind of private garden, a place used by people who knew exactly how to unsettle visitors. The woman by the willow could be real. The voice could have come from her. Aurora looked back across the stream. The woman was gone. The flowers where she had stood were bent outward in a perfect circle. Aurora ran. She followed the path she had taken, though it seemed to twist beneath her feet. The pendant bounced against her chest, burning now. Her breath tore at her throat. Behind her came no pursuit, but she could hear footsteps matching her own. Not close. Not far. When she stopped, they stopped. She pressed her hand to her mouth and listened. The grove listened back. Somewhere among the flowers, a branch scraped slowly against another branch. Once. Twice. Then a voice said, “Rory.” She went cold. Everyone who knew her well called her Rory. Eva did. Silas did, usually with a scowl. Her mother had called her Aurora when she was angry, and Laila when she was trying to be gentle. The voice had chosen the name that belonged to the smallest, safest circle of her life. Aurora looked toward the sound. The trees stood in a dark ring around her. “Rory,” it said again. This time it came from the stream. She did not answer. The pendant’s glow brightened until red light spilled over her jumper. It pointed her forward with heat. Ahead, the flowers opened around a low stone arch that had not been there before. Its two upright slabs were black with age, and the space between them contained no view of the grove. It contained a room. Aurora could see walls, a kitchen table, the familiar chipped blue mug beside the sink in her flat. Light glowed beneath the door to the hall. For one dizzy second, relief nearly broke her. Then she noticed the room’s window. It looked out onto the grove. Something stood on the other side of the glass. Aurora saw only its outline: a person with long hair, head bent at an impossible angle, one hand pressed flat against the pane. Her hand. The figure lifted its face. Aurora stumbled backward. The image in the arch vanished. Blackness filled the space between the stones. A heartbeat later, something struck the invisible barrier from within. Once. The sound shuddered through the clearing. Again. The pendant went cold. Aurora did not wait to understand. She ran for the boundary, phone clenched in one hand, stone in the other. The flowers whipped at her legs. They caught at her shoes like fingers, bending without breaking. Behind her, the thing in the arch struck again and again, each impact louder than the last. The standing stones appeared ahead. The gap between them was open now, showing the dark park beyond. Aurora lunged through. She fell onto wet grass. For several seconds she could not move. Her cheek pressed into the cold earth. Her lungs dragged in air that smelled of mud and dead leaves. Somewhere nearby, a deer snorted and bolted through the undergrowth. Her phone lit beneath her palm. 12:03 a.m. Sixteen minutes. Aurora rolled onto her back and stared at the trees. The grove was gone. Only ordinary oaks stood beyond the path, their branches shifting in a rising wind. No flowers. No stream. No black arch. She sat up slowly. The pendant hung from her fist. Its crimson centre had gone dark. Then, beneath the earth behind her, something knocked. Aurora froze. A single, deliberate sound. Knock. She turned her head. The ground between the oaks was empty. Knock. This time the pendant answered with a faint pulse of warmth. Aurora got to her feet. She did not run. Running would mean looking back, and she knew—without knowing how she knew—that the thing behind the trees was waiting for her to do exactly that. She walked toward the park lights, phone trembling in her hand. At the edge of the path, she glanced once at the black windows of the grove. For an instant, a woman stood between the trees. Aurora saw her own face. Then the darkness closed, and something behind it began to laugh.
created_at"2026-07-09T18:01:35.336Z" 7/9/2026, 6:01:35 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1352
moderation_latency(null)
generation_time16526
tokens_prompt812
tokens_completion3335
native_tokens_prompt742
native_tokens_completion2603
native_tokens_completion_images0
native_tokens_reasoning52
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"
usage0.01636
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_0b94709bb41a6ca1016a4fe1ff6d84819394c4538abe0100d7"
is_byokfalse
latency235
model_permaslug"openai/gpt-5.6-luna-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620095-z9gSErxUDStXDEQDpTUf"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620095-q3Vtkr7VYwh3lbMVahMH"
upstream_id"resp_0b94709bb41a6ca1016a4fe1ff6d84819394c4538abe0100d7"
total_cost0.01636
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
57.14% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags7
adverbTagCount1
adverbTags
0"it said again [again]"
dialogueSentences8
tagDensity0.875
leniency1
rawRatio0.143
effectiveRatio0.143
90.24% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount2050
totalAiIsmAdverbs4
found
0
adverb"slowly"
count3
1
adverb"sharply"
count1
highlights
0"slowly"
1"sharply"
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)
56.10% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount2050
totalAiIsms18
found
0
word"pulsed"
count2
1
word"comforting"
count1
2
word"warmth"
count3
3
word"throbbed"
count1
4
word"pulse"
count4
5
word"flickered"
count1
6
word"footsteps"
count3
7
word"silence"
count1
8
word"perfect"
count1
9
word"familiar"
count1
highlights
0"pulsed"
1"comforting"
2"warmth"
3"throbbed"
4"pulse"
5"flickered"
6"footsteps"
7"silence"
8"perfect"
9"familiar"
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
emotionTells1
narrationSentences253
matches
0"was angry"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount7
narrationSentences253
filterMatches(empty)
hedgeMatches
0"seemed to"
1"tried to"
2"appeared to"
3"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences255
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen36
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords2048
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions6
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions43
wordCount2021
uniqueNames11
maxNameDensity1.43
worstName"Aurora"
maxWindowNameDensity3
worstWindowName"Aurora"
discoveredNames
Carter1
Richmond2
Park2
Golden1
Empress1
November1
Eva2
Silence1
Aurora29
Rory2
Laila1
persons
0"Carter"
1"Empress"
2"Eva"
3"Aurora"
4"Rory"
5"Laila"
places
0"Richmond"
1"Park"
globalScore0.783
windowScore0.667
97.18% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences142
glossingSentenceCount3
matches
0"seemed narrower than it had been, and the path beyond no longer appeared to lead toward the park"
1"pulse that seemed to illuminate the veins in her hand"
2"as if listening with an ear that had been placed too low"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount2048
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount4
totalSentences255
matches
0"suspect that the"
1"was that the"
2"was that someone"
3"knew—that the"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs159
mean12.88
std15.83
cv1.229
sampleLengths
010
158
23
346
49
59
637
75
83
95
105
115
1229
131
1478
1514
168
1747
185
1968
2022
213
2267
234
2426
255
2636
275
288
294
3052
314
322
332
3412
351
361
371
3821
395
401
416
422
4326
442
4527
464
474
485
495
96.94% Passive voice overuse
Target: ≤2% passive sentences
passiveCount6
totalSentences253
matches
0"was ridged"
1"been fenced"
2"been placed"
3"were planted"
4"was gone"
5"was gone"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs339
matches
0"wasn’t looking"
1"was playing"
2"was trying"
3"was waiting"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount2
semicolonCount0
flaggedSentences1
totalSentences255
ratio0.004
matches
0"Running would mean looking back, and she knew—without knowing how she knew—that the thing behind the trees was waiting for her to do exactly that."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount344
adjectiveStacks0
stackExamples(empty)
adverbCount9
adverbRatio0.02616279069767442
lyAdverbCount1
lyAdverbRatio0.0029069767441860465
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences255
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences255
mean8.03
std6.43
cv0.801
sampleLengths
010
120
27
33
44
524
63
718
89
919
109
119
122
133
1423
159
165
173
185
195
203
212
225
2312
2412
251
2614
2735
2817
2912
3014
318
326
3329
349
352
361
375
3835
396
4027
419
422
433
448
453
4624
4712
4816
4915
43.25% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats17
diversityRatio0.26587301587301587
totalSentences252
uniqueOpeners67
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount12
totalSentences210
matches
0"Only the oaks."
1"Then the numbers flickered."
2"Too deep, too wet, more"
3"Then came the warmth."
4"Only a pale moon and"
5"Somewhere among the flowers, a"
6"Then a voice said,"
7"Then she noticed the room’s"
8"Somewhere nearby, a deer snorted"
9"Only ordinary oaks stood beyond"
10"Then, beneath the earth behind"
11"Then the darkness closed, and"
ratio0.057
92.38% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount67
totalSentences210
matches
0"She kept walking."
1"Her shoes were already damp"
2"It had been warm when"
3"She waited, holding her breath."
4"Her voice sounded too loud."
5"It travelled between the trees"
6"She could almost hear another"
7"It had appeared in the"
8"It gave off a faint"
9"She had worn it because"
10"She had delivered the last"
11"She had read enough scattered"
12"She still wasn’t sure whether"
13"They stood in an uneven"
14"Their bark was ridged and"
15"She lifted it from beneath"
16"They carpeted the clearing in"
17"It was November."
18"Her first thought was that"
19"Her second was that she"
ratio0.319
64.76% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount166
totalSentences210
matches
0"Aurora Carter knew Richmond Park"
1"The paths narrowed."
2"The trees crowded close."
3"Every pale trunk became a"
4"She kept walking."
5"The beam of her phone"
6"Mist had gathered in the"
7"Her shoes were already damp"
8"The pendant rested against her"
9"It had been warm when"
10"A small, steady heat, as"
11"Aurora stopped beneath an oak."
12"The heat faded."
13"She waited, holding her breath."
14"Nothing moved except the grass."
15"Her voice sounded too loud."
16"It travelled between the trees"
17"She could almost hear another"
18"The pendant’s chain had been"
19"It had appeared in the"
ratio0.79
23.81% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences210
matches
0"Now it pulsed against her"
ratio0.005
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences75
technicalSentenceCount3
matches
0"She had read enough scattered notes, heard enough half-joking warnings from people who stopped joking when they thought she wasn’t looking, to suspect that the …"
1"Its glow showed through her fingers, a deep red pulse that seemed to illuminate the veins in her hand."
2"Aurora’s mind assembled a person before her eyes found one: a man in a dark coat, perhaps a park ranger, perhaps someone who had followed her."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags7
uselessAdditionCount0
matches(empty)
66.67% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags6
fancyCount1
fancyTags
0"she whispered (whisper)"
dialogueSentences8
tagDensity0.75
leniency1
rawRatio0.167
effectiveRatio0.167
88.5050%