Run: 2026-07-09-01KX40JT7F8QTMB7KMWV2NWRS0

Run Details

Duration:
14.1s
Cost:
$0.013552
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="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> Continue the story using the following instructions: <instructions> 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. </instructions>

Model response

AI
Aurora Carter reached the standing stones at eleven minutes past midnight. Richmond Park lay behind her, dark and hollow beneath a sky without stars. The city had vanished beyond the trees. No traffic muttered along the distant roads. No aircraft crossed the cloud. Even the wind had dropped, leaving the branches fixed against the night like black veins pressed into glass. She stopped at the boundary. The stones rose from the grass in a broken ring, each slab taller than a person and slick with silver moisture. Oak roots gripped their bases. Wildflowers crowded the gaps between them—bluebells, foxgloves, small white blooms she could not name—though winter had stripped every other part of the park bare. Aurora touched the pendant beneath her coat. The Heartstone rested against her sternum, warm as a living thing. Its deep crimson surface gave off a faint inner glow. She had followed it here because it had begun pulsing at the restaurant, first beneath her blouse, then through the fabric, a steady pressure against her skin. Near a Hel portal, Yu-Fei had told her. Aurora had not asked how Yu-Fei knew what a Hel portal was. The woman had only gripped Aurora’s wrist, her fingers cold and strong, and pointed towards Richmond Park. “Do not go alone.” Aurora had gone alone. She had left her bicycle chained behind the park lodge and crossed the grass with a torch in one hand. The beam now shone between two stones, illuminating a narrow path that had not existed when she entered the park. The path led into the trees. A bird called somewhere beyond the ring. Aurora turned towards the sound. It came again—three notes, thin and rising. Not an owl. Not any bird she recognised. The torch beam swept across the oaks. Trunks. Bracken. A pale moth hovering over the grass. Nothing else. She lowered the torch. “Fine,” she muttered. “In and out.” Her voice travelled only a few feet before the trees swallowed it. Aurora stepped between the stones. The air changed. Cold slipped beneath her coat, but the temperature was not the worst of it. The smell altered. Richmond’s damp earth and rotting leaves fell away, replaced by crushed mint and something sweet beneath it, like fruit left open in a sealed room. She looked back. The park remained visible through the gap. The pale grass. The distant lodge. The dark outline of a fence. Then a twig snapped behind her. Aurora spun. The torch cut through the trees. The beam caught a white flower nodding in the undergrowth. It had not moved with the wind. There was no wind. Her hand closed around the pendant. Its warmth strengthened. “Very funny.” The trees offered no answer. She kept walking. The path curled between the oaks, its surface soft with moss. The roots beneath it formed ridges like knuckles. She placed each foot carefully, refusing to hurry. Panic had a rhythm. She knew it from Evan’s flat, from the moments before his temper broke, from the way her own body had learned to search a room before her mind caught up. Listen. Count exits. Keep your hands free. One path ahead. No side routes. Trees close on both sides. She passed a crooked oak whose trunk split into three limbs. A pale ribbon hung from one branch. She noticed it only after she had gone several steps beyond. The ribbon lifted. Aurora stopped. It curled around the branch, though the air remained still. One end pointed towards her. The torch flickered. She tapped it against her palm. The light steadied, weak and yellow. Behind her, something scraped across the path. Aurora turned slowly. The moss showed a long, fresh line between the roots. It began at the edge of the trees and stopped where she stood. Her mouth dried. She raised the torch and searched the darkness. The beam caught movement at the edge of her vision: a tall, pale shape slipping behind an oak. Aurora swung towards it. The tree stood empty. She backed away, keeping the trunk in sight. Her left wrist brushed her coat cuff, and the small crescent-shaped scar there prickled with cold. “Come out,” she called. The words sounded foolish. They also sounded too loud. A reply came from ahead. “Come out.” Aurora’s breath caught. The voice had copied hers, but it had flattened the edges. The sound lacked her Cardiff lilt. It rose from the dark in a careful imitation, each syllable placed where she had placed it. “Come out,” it repeated. She stepped back. The path behind her had narrowed. The trees stood closer together now, their trunks leaning towards the moss as though they had grown inwards while she watched. The entrance to the grove had vanished. She saw only layered bark and thorny branches. The pendant pulsed once. A dull red glow seeped through her coat. Aurora pulled it free of the chain and held it in her palm. The Heartstone had grown hot. Its glow beat beneath the polished surface, not like a lamp but like blood beneath skin. The path ahead descended into darkness. She moved forward. The trees ended without warning. A clearing opened around her, broad and pale beneath a moon she could not see. Wildflowers covered the ground from edge to edge. Their colours shifted when she looked at them—violet became blue, blue became white, white became the yellow of old teeth. At the centre stood a dead oak. Its branches spread across the clearing, bare and twisted. Dozens of small objects hung from the limbs. Keys. Buttons. Rings. A child’s red shoe. A telephone receiver with its cord trailing into the grass. Aurora stood at the edge. The Heartstone cooled in her hand. “That’s not a portal,” she whispered. Something moved among the flowers. She lowered the torch. A patch of blossoms bent in a line, travelling from the oak towards her. One after another, the flowers dipped as something passed through them. No body disturbed the moonlight. Only the flowers marked its progress. Aurora tightened her grip on the torch and turned in a slow circle. The clearing had no entrance. The trees formed a solid wall around it. A soft click came from above. One of the keys hanging from the dead oak swung against another. Then another answered. Click. Click. Click. The sound moved through the branches, spreading from one object to the next. Rings tapped metal. The telephone receiver rocked against its cord. The child’s shoe twisted, its sole scraping the bark. Aurora’s phone vibrated in her pocket. She snatched it out. The screen displayed one missed call. From Aurora Carter. Another vibration followed. A new message appeared. WHERE ARE YOU? She stared at the words. The message came from her number. The screen dimmed. In its black reflection, something stood behind her. Aurora did not turn. The shape rose high above her shoulder, narrow and pale. Its head angled towards the phone. She could see no face, only a smooth blankness where features should have been. Her thumb locked against the phone’s edge. The reflection shifted closer. Aurora threw the phone into the flowers. The screen flashed as it landed. The shape vanished from the reflection. She ran. Her boots tore through the flowers. Stems whipped her ankles. The dead oak swung past on her right, its hanging objects clattering as she passed. She aimed for the tree wall, chose a gap between two trunks, and drove herself through it. The branches struck her shoulders. She stumbled into the dark. The path had returned. Aurora caught herself against an oak and pressed her palm to the bark. Her breath came hard, clouding before her face. She listened. Nothing followed. The clearing lay behind her, silent now. She pushed away from the tree. A woman hummed somewhere along the path. The tune stopped her. Her mother used to hum it while marking exercise books at the kitchen table. Three notes descending, then a pause. Jennifer had sung it without words, always when she thought no one listened. Aurora faced the sound. “Mum?” The humming started again. It came from the trees ahead. Aurora’s fingers shook once. She forced them still. “No.” The humming continued. A figure emerged between the oaks. Jennifer Carter stood beneath the branches in her old green cardigan, one hand resting against a trunk. Her hair hung loose around her face. Mud darkened the hem of her skirt. Aurora could see the kitchen behind her. Yellow light. A kettle steaming on the counter. A stack of schoolbooks near the sink. The image sat inside the forest like a window cut into another world. Her mother raised her head. “Rory,” she called. Aurora stepped back. The figure smiled. It wore Jennifer’s mouth, but the smile stretched too far. “Come home.” Aurora lifted the Heartstone. The crimson glow flared between them. The false kitchen blinked out. The figure remained, now tall and thin, its green cardigan hanging from a body without shape. Its head tilted until the neck made a dry, wooden crack. Aurora ran again. The thing behind her made no sound. That frightened her more than footsteps would have. The path twisted. She counted stones as she passed them—one, two, three—though she had never seen stones there before. Each had a face carved into it. The mouths opened as she ran. Aurora did not look at them. The pendant burned against her palm. Ahead, a pale gap appeared between the trees. She surged towards it and crossed the boundary. Richmond Park slammed back into place. The wind struck her first. Then the smell of wet grass, petrol, and distant rain. She staggered between the standing stones and dropped to one knee. Her torch rolled across the ground. The park lodge stood where she had left it. The fence. The bicycle. The road beyond the trees. Aurora pressed the Heartstone beneath her coat and waited for her breathing to settle. Behind her, inside the ring, something tapped the nearest standing stone. Once. Then twice. She rose without turning around.
created_at"2026-07-09T18:00:04.126Z" 7/9/2026, 6:00:04 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency538
moderation_latency(null)
generation_time13776
tokens_prompt1038
tokens_completion2730
native_tokens_prompt916
native_tokens_completion2106
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"
usage0.013552
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_005ab2645c9e5ed0016a4fe1a43ca4819697667f5ed7cd7eaa"
is_byokfalse
latency263
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-1783620004-iZN01u0wEBpesqBUwZoa"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620004-tNxP2FIdFleV6zWWIQOj"
upstream_id"resp_005ab2645c9e5ed0016a4fe1a43ca4819697667f5ed7cd7eaa"
total_cost0.013552
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
totalTags5
adverbTagCount0
adverbTags(empty)
dialogueSentences12
tagDensity0.417
leniency0.833
rawRatio0
effectiveRatio0
91.08% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1681
totalAiIsmAdverbs3
found
0
adverb"very"
count1
1
adverb"carefully"
count1
2
adverb"slowly"
count1
highlights
0"very"
1"carefully"
2"slowly"
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)
82.15% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1681
totalAiIsms6
found
0
word"warmth"
count1
1
word"flickered"
count1
2
word"lilt"
count1
3
word"pulsed"
count1
4
word"vibrated"
count1
5
word"footsteps"
count1
highlights
0"warmth"
1"flickered"
2"lilt"
3"pulsed"
4"vibrated"
5"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
narrationSentences230
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences230
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences237
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
totalWords1675
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions5
unquotedAttributions0
matches(empty)
65.15% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions59
wordCount1650
uniqueNames12
maxNameDensity1.7
worstName"Aurora"
maxWindowNameDensity3
worstWindowName"Aurora"
discoveredNames
Carter3
Park3
Heartstone5
Hel2
Yu-Fei2
Aurora28
Richmond4
Evan1
Cardiff1
Jennifer3
One4
Click3
persons
0"Carter"
1"Park"
2"Heartstone"
3"Yu-Fei"
4"Aurora"
5"Evan"
6"Jennifer"
7"Click"
places
0"Hel"
1"Richmond"
2"Cardiff"
3"One"
globalScore0.652
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences128
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.597
wordCount1675
matches
0"not like a lamp but like blood beneath skin"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences237
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs148
mean11.32
std12.36
cv1.092
sampleLengths
011
150
25
350
47
548
68
729
84
94
1040
116
127
1320
1416
152
164
176
1812
195
203
2142
223
2319
246
252
2616
2711
289
292
305
313
3261
337
3411
3529
363
372
3815
393
4012
417
423
4323
443
4526
464
474
4824
494
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences230
matches(empty)
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs291
matches(empty)
94.64% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount6
semicolonCount0
flaggedSentences4
totalSentences237
ratio0.017
matches
0"Wildflowers crowded the gaps between them—bluebells, foxgloves, small white blooms she could not name—though winter had stripped every other part of the park bare."
1"It came again—three notes, thin and rising."
2"Their colours shifted when she looked at them—violet became blue, blue became white, white became the yellow of old teeth."
3"She counted stones as she passed them—one, two, three—though she had never seen stones there before."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1659
adjectiveStacks0
stackExamples(empty)
adverbCount42
adverbRatio0.02531645569620253
lyAdverbCount9
lyAdverbRatio0.0054249547920434
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences237
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences237
mean7.07
std5.05
cv0.715
sampleLengths
011
113
27
37
45
518
65
721
85
924
107
1111
1210
1327
148
1512
1617
174
184
1920
2020
216
227
235
247
253
265
277
281
291
307
312
324
333
343
3512
365
373
3814
393
4025
413
427
433
443
456
466
472
486
4910
39.87% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats24
diversityRatio0.23628691983122363
totalSentences237
uniqueOpeners56
81.70% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount5
totalSentences204
matches
0"Even the wind had dropped,"
1"Then a twig snapped behind"
2"Only the flowers marked its"
3"Then another answered."
4"Then the smell of wet"
ratio0.025
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount54
totalSentences204
matches
0"She stopped at the boundary."
1"Its deep crimson surface gave"
2"She had followed it here"
3"She had left her bicycle"
4"It came again—three notes, thin"
5"She lowered the torch."
6"Her voice travelled only a"
7"She looked back."
8"It had not moved with"
9"Her hand closed around the"
10"Its warmth strengthened."
11"She kept walking."
12"She placed each foot carefully,"
13"She knew it from Evan’s"
14"She passed a crooked oak"
15"She noticed it only after"
16"It curled around the branch,"
17"She tapped it against her"
18"It began at the edge"
19"Her mouth dried."
ratio0.265
28.63% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount176
totalSentences204
matches
0"Aurora Carter reached the standing"
1"Richmond Park lay behind her,"
2"The city had vanished beyond"
3"She stopped at the boundary."
4"The stones rose from the"
5"Oak roots gripped their bases."
6"Wildflowers crowded the gaps between"
7"Aurora touched the pendant beneath"
8"The Heartstone rested against her"
9"Its deep crimson surface gave"
10"She had followed it here"
11"Aurora had not asked how"
12"The woman had only gripped"
13"Aurora had gone alone."
14"She had left her bicycle"
15"The beam now shone between"
16"The path led into the"
17"A bird called somewhere beyond"
18"Aurora turned towards the sound."
19"It came again—three notes, thin"
ratio0.863
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences204
matches(empty)
ratio0
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences55
technicalSentenceCount0
matches(empty)
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags5
uselessAdditionCount0
matches(empty)
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags5
fancyCount3
fancyTags
0"she muttered (mutter)"
1"it repeated (repeat)"
2"she whispered (whisper)"
dialogueSentences12
tagDensity0.417
leniency0.833
rawRatio0.6
effectiveRatio0.5
86.1072%