Run: 2026-09-23-01M36NKKJ3YTN3VXZF16BWBQZ7

Run Details

Duration:
32.7s
Cost:
$0.001204
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
The pendant had warmed against Rory’s throat on the bus, then gone cold the moment she stepped off. She stood beneath the Richmond Park sign and watched the dark swallow the path ahead. Behind her, the road shone with recent rain. A car hissed past, its headlights sliding over the iron railings and vanishing. She checked her phone. 11:43. One bar of signal. She had come because the pendant had been pulsing all evening. Not glowing. Not exactly. Just a faint, deliberate warmth, as though someone had tucked a coal beneath the silver chain. It had started while she was delivering food, halfway across town, and sharpened each time she turned toward the park. By the time she reached the gates, she’d convinced herself it meant something. A portal, perhaps. The word sat badly in her mind, too large and theatrical for a piece of jewellery she could hide under her shirt. Still, it had been given to her by an unknown benefactor. It warmed near Hel portals. She knew that much, though she couldn’t have said how she knew it without sounding mad. Rory pushed her hands into her coat pockets and started down the path. The park was quiet in the ordinary way at first. Wet leaves clung to the pavement. Somewhere, a branch creaked in the wind. Her shoes scuffed over gravel. The darkness between the trees seemed no thicker than darkness should be, and that almost disappointed her. She had come expecting a sign. A flash of light. A sudden certainty. Instead, the pendant cooled against her chest. She stopped. A soft sound came from somewhere to her left: three quick taps, like knuckles on wood. Rory turned her head. The trees stood still. Beyond them lay a slope of black grass, then more trees. No one with a torch. No dog. No cottage tucked among the trunks. She listened. Rainwater dripped from a branch. Her breath moved in and out of her nose. Far off, traffic grumbled along the road. She started walking again. The path narrowed. It ought to have led her back toward the main road, but she’d taken the turn because the pendant had warmed as she passed it. Now it rested cold against her skin, and the path beneath her feet had gone from gravel to packed earth. She told herself there was nothing strange about that. Parks had paths. Paths changed. The trees crowded closer. Their branches laced overhead, obscuring the thin strip of sky. Somewhere among them, an owl called once. The note broke in the middle, as though the bird had swallowed the rest. Rory took out her phone and turned on the flashlight. The beam picked out mud, roots, the pale undersides of leaves. It caught a scatter of wildflowers growing at the path’s edge. Small yellow blooms, open to the night. She crouched and touched one with the back of a knuckle. The flower was warm. She jerked her hand away. The light on her phone flickered. When it steadied, the flowers were only flowers: wet petals, bent stems, beads of rain. Rory straightened. Her pulse had begun to move faster, but she made herself breathe through it. Fear didn’t improve a situation. It only made the edges harder to see. She turned around to go back. The path behind her looked longer than it had a moment ago. Not impossibly long. Just enough to make her frown. The trees had closed over it, their dark branches meeting in a low arch. She could still see the pale track of the path, stretching away between them. A sound came from behind her. Three quick taps. Rory swung the light around. Nothing. Her own shadow jumped across the trunks and vanished. “All right,” she said, quietly. “Very funny.” The words went nowhere. The silence took them without an echo. She walked faster. The path dipped, then rose. Her phone showed 11:51. The signal had disappeared. The pendant stirred against her sternum. A faint warmth, then another. It was pulsing now, soft and regular. Rory pulled it from beneath her shirt. The deep-crimson stone rested in her palm, thumbnail-sized, its inner glow barely visible in the wash of her phone’s light. She held it out in front of her. The pulse strengthened. Ahead, between two great oaks, stood a line of stones. They were taller than a person, pale in the dark, their rough faces slick with rain. Rory stopped. She hadn’t seen them on her way in. That didn’t mean anything. She’d been looking at the path, at her phone, at the pendant. She could have passed them without noticing. One of the stones leaned toward the next. Their arrangement made a kind of boundary, though not a complete circle. Beyond them, the trees thinned around a clearing. The pendant warmed in her hand. There it was. The reason she had come. Whatever she’d expected, she had found the place the pendant wanted her to find. Rory moved toward the stones. The grass inside the clearing was silvered with rain. Wildflowers covered it, bright and delicate in the dark, yellow and white and a vivid blue she couldn’t name. They bloomed as if it were summer. At the centre stood a low, twisted tree. Its bare branches spread over the clearing like a hand reaching down. No wind stirred the leaves outside the boundary. No leaves stirred inside it, either. She stepped through. The night changed. Not in any way she could have pointed to. The air stayed damp and cool. The flowers still smelled faintly sweet. Yet the ordinary dark she had walked through seemed to fall away behind her, leaving the clearing sealed in a deeper kind of quiet. Rory turned. The stones stood at her back. Between them, the path should have been visible. Instead she saw trees, crowded close together, and a darkness without depth. Her phone clock read 11:48. She stared at it. It had been 11:51. She tapped the screen, but the numbers held steady. A glitch, she thought. A bad connection. Something simple, something explainable. A branch cracked behind her. Rory spun. The tree in the centre of the clearing stood exactly as before. Its branches were still. The flowers had bowed their heads, though there was no breeze to bend them. She swept the flashlight across the ground. No animal. No person. Then, at the far edge of the clearing, something moved between the stones. A shape, tall and narrow, slipping behind one of the ancient oaks. Rory lifted the light. The beam struck the stone’s rough face. Nothing stood beside it. She backed toward the boundary. The sound came again—three quick taps, this time from the tree in the centre of the clearing. She stopped. The tree’s trunk was split halfway up, a black seam running through the pale bark. A small hollow opened at its base. Rory couldn’t see inside it. She held the phone out, steadying her wrist with her other hand. A pale flower lay on the grass beside the hollow. It had not been there a moment ago. Her mouth went dry. She could feel the little crescent scar on her wrist where her sleeve had ridden up, the familiar roughness of it under her thumb. She pressed the pendant into her palm until its edge hurt. “Who’s there?” The clearing offered no answer. The phone clock changed to 11:43. Rory’s stomach tightened. She looked at the screen, then at the stones. Her breath sounded too loud. She was counting seconds without meaning to. One, two, three. The numbers on the phone did not change. A whisper brushed the back of her neck. It wasn’t a word. It was the intimate murmur of someone leaning close enough to speak, though no one stood behind her. She spun around, and the flashlight beam found only flowers. Something shifted at the edge of her vision. To the right. A dark shape between the stones, just beyond the boundary. Rory turned the light toward it. There was nothing there. She moved the beam left, then back again. The shape was closer. She saw it this time: a long, pale face, half hidden behind the leaning stone. It had no features she could make out. No eyes catching the light. Only the suggestion of a face turned toward her. Rory ran. She reached the stones and threw herself through the gap. Her shoulder struck rock. Pain flashed down her arm. She stumbled into the trees and kept going, the phone light bouncing wildly ahead of her. Roots grabbed at her shoes. Branches whipped her cheeks and caught in her hair. Behind her came the three taps. Then the sound of footsteps, careful and unhurried, matching her pace. Rory didn’t look back. She pushed through the trees, lungs burning, until the path widened beneath her feet. The air loosened around her. Somewhere in the distance a car passed, its tyres hissing on wet road. She stopped at the edge of the main path and bent double, hands braced on her knees. Her phone said 11:44. Her pendant lay cold against her chest. She waited until her breathing slowed. She listened for footsteps. For taps. For any sign that something had followed her out. Nothing. Rory straightened and looked back. The trees stood black and still. The path she’d taken into the park was plain to see, curving away beneath them. There were no standing stones. No clearing. No flowers shining in the dark. She started toward the road. After a few paces, she felt the pendant warm again. Not pulsing. Not yet. Just a small, patient heat against her skin.
created_at"2026-09-23T08:20:09.929Z" 9/23/2026, 8:20:09 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5047
moderation_latency(null)
generation_time32685
tokens_prompt792
tokens_completion2595
native_tokens_prompt742
native_tokens_completion2259
native_tokens_completion_images0
native_tokens_reasoning235
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"
usage0.0012037
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151609-ptZKLPR3CcaSypuTjLtu"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151609-GpPqI9gSGbDIdhCwYLEu"
upstream_id"resp_09c7c66e0634c5ed016ab38bba15f087d196528cc321043b36"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_09c7c66e0634c5ed016ab38bba15f087d196528cc321043b36"
is_byokfalse
latency496
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0012037
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
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
totalTags1
adverbTagCount0
adverbTags(empty)
dialogueSentences3
tagDensity0.333
leniency0.667
rawRatio0
effectiveRatio0
96.90% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1612
totalAiIsmAdverbs1
found
0
adverb"very"
count1
highlights
0"very"
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)
59.68% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1612
totalAiIsms13
found
0
word"warmth"
count2
1
word"flickered"
count1
2
word"pulse"
count2
3
word"silence"
count1
4
word"echo"
count1
5
word"could feel"
count1
6
word"familiar"
count1
7
word"stomach"
count1
8
word"whisper"
count1
9
word"footsteps"
count2
highlights
0"warmth"
1"flickered"
2"pulse"
3"silence"
4"echo"
5"could feel"
6"familiar"
7"stomach"
8"whisper"
9"footsteps"
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
narrationSentences208
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount2
narrationSentences208
filterMatches(empty)
hedgeMatches
0"seemed to"
1"started to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences210
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen25
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1611
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions2
unquotedAttributions0
matches(empty)
93.93% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions24
wordCount1605
uniqueNames5
maxNameDensity1.12
worstName"Rory"
maxWindowNameDensity2
worstWindowName"Rory"
discoveredNames
Rory18
Richmond1
Park1
Hel1
One3
persons
0"Rory"
places
0"Richmond"
1"Park"
2"Hel"
3"One"
globalScore0.939
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences120
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1611
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences210
matches
0"knew that much"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs84
mean19.18
std17.62
cv0.919
sampleLengths
018
145
211
378
432
513
658
77
82
916
1032
112
1221
134
1462
1535
1650
174
185
1950
206
2149
226
233
2415
257
2611
2716
2845
298
303
3110
3249
3328
346
3522
365
3755
3814
393
403
4145
4216
4312
445
4528
465
472
4830
4911
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences208
matches
0"been given"
1"was silvered"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs265
matches
0"was delivering"
1"was pulsing"
2"was counting"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount1
semicolonCount0
flaggedSentences1
totalSentences210
ratio0.005
matches
0"The sound came again—three quick taps, this time from the tree in the centre of the clearing."
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1608
adjectiveStacks1
stackExamples
0"lay cold against her"
adverbCount54
adverbRatio0.033582089552238806
lyAdverbCount12
lyAdverbRatio0.007462686567164179
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences210
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences210
mean7.67
std4.95
cv0.645
sampleLengths
018
115
28
313
44
51
64
711
82
92
1016
1120
1213
133
1422
1511
165
1716
1813
1910
206
217
225
2317
246
254
263
277
282
2916
304
314
3211
335
342
356
362
375
389
397
404
413
4225
4320
449
453
462
474
4810
497
40.43% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats20
diversityRatio0.23923444976076555
totalSentences209
uniqueOpeners50
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount11
totalSentences187
matches
0"Just a faint, deliberate warmth,"
1"Somewhere, a branch creaked in"
2"Instead, the pendant cooled against"
3"Somewhere among them, an owl"
4"Just enough to make her"
5"Instead she saw trees, crowded"
6"Then, at the far edge"
7"Only the suggestion of a"
8"Then the sound of footsteps,"
9"Somewhere in the distance a"
10"Just a small, patient heat"
ratio0.059
80.96% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount65
totalSentences187
matches
0"She stood beneath the Richmond"
1"She checked her phone."
2"She had come because the"
3"It had started while she"
4"It warmed near Hel portals."
5"She knew that much, though"
6"Her shoes scuffed over gravel."
7"She had come expecting a"
8"Her breath moved in and"
9"She started walking again."
10"It ought to have led"
11"She told herself there was"
12"Their branches laced overhead, obscuring"
13"It caught a scatter of"
14"She crouched and touched one"
15"She jerked her hand away."
16"Her pulse had begun to"
17"It only made the edges"
18"She turned around to go"
19"She could still see the"
ratio0.348
77.65% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount143
totalSentences187
matches
0"The pendant had warmed against"
1"She stood beneath the Richmond"
2"A car hissed past, its"
3"She checked her phone."
4"She had come because the"
5"It had started while she"
6"A portal, perhaps."
7"The word sat badly in"
8"It warmed near Hel portals."
9"She knew that much, though"
10"Rory pushed her hands into"
11"The park was quiet in"
12"Her shoes scuffed over gravel."
13"The darkness between the trees"
14"She had come expecting a"
15"A flash of light."
16"A sudden certainty."
17"A soft sound came from"
18"Rory turned her head."
19"The trees stood still."
ratio0.765
80.21% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount3
totalSentences187
matches
0"By the time she reached"
1"Now it rested cold against"
2"To the right."
ratio0.016
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences60
technicalSentenceCount2
matches
0"A car hissed past, its headlights sliding over the iron railings and vanishing."
1"Just a faint, deliberate warmth, as though someone had tucked a coal beneath the silver chain."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags1
uselessAdditionCount1
matches
0"she said, quietly"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags1
fancyCount0
fancyTags(empty)
dialogueSentences3
tagDensity0.333
leniency0.667
rawRatio0
effectiveRatio0
90.7918%