Run: 2026-07-09-01KX41MTSTKCVYD32CK79Z9SVK

Run Details

Duration:
11.9s
Cost:
$0.011698
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 crossed the boundary stones at 11:47 p.m. The last London bus had groaned away behind her, its red lights shrinking through the trees. Beyond the road, Richmond Park held the night in both hands. No traffic reached this far in. No voices. No dogs barking at foxes. Only the oak stones stood between the path and the grove. They rose from the earth in a crooked ring, black with rain, their surfaces ridged like old bones. Aurora paused before them and checked her phone. 11:47. The screen showed one bar of signal. She slipped the phone into her coat pocket and touched the pendant beneath her jumper. The Heartstone rested against her sternum, thumb-sized and warm despite the cold. Its crimson centre gave one faint pulse beneath the silver chain. The grove waited beyond the stones. Aurora stepped through. Nothing changed. That unsettled her first. She had expected some grand shift: a flash, a pressure in her ears, the smell of smoke. Instead, the muddy path continued between yew trees, and wildflowers crowded its edges despite the season. White bells and yellow stars nodded beneath the branches. Their petals shone wetly in the moonlight. She glanced back. The road had vanished. Not faded. Vanished. The standing stones remained, but beyond them lay a wall of trees packed shoulder to shoulder. No path. No park railings. No city glow bleeding through the branches. Aurora took out her phone again. 11:48. She stared at the time until the minute changed. 11:48. The signal vanished. “Fine,” she murmured. “That’s fine.” Her voice travelled farther than it should have. It slid through the trees, thin and bright, then came back altered. Fine. Aurora lowered the phone. Something rustled behind her. She turned. The flowers beside the path trembled. A drop of water fell from one leaf and struck the soil. Aurora watched the patch for several seconds. Her fingers curled around the phone. “Wind,” she whispered. No wind touched her face. She started walking. The clearing lay somewhere ahead. Isolde had drawn it on the back of a takeaway receipt, using a black biro and a series of crooked lines. Oak stones. Dead ash tree. Silver pool. Come alone, Isolde had written beneath the map. The words had looked like a joke when Aurora first read them in the bar’s back room. They no longer did. She had come because Isolde had disappeared. Three nights ago, the woman had left the Golden Empress after closing, carrying nothing but a red scarf and a brass key. She had promised to return before midnight. She had not. The police had treated it as a missing-person case until Yu-Fei found Isolde’s coat folded on the restaurant roof, soaked through with rain that had never fallen in the city. Then the Heartstone had begun to pulse. Aurora kept walking. The path narrowed between the trees. Roots rose through the mud, pale and slick. Once, she saw movement between the trunks to her right: a slim shape retreating behind a birch. She stopped. The shape had been too tall for a fox and too narrow for a person. The forest held its breath. Aurora angled her torch towards the trees. The beam caught trunks, ferns, a scatter of blue flowers. Nothing else. A branch creaked behind her. She swung the torch around. The beam landed on a face. Aurora recoiled, raising one hand. A pale moth clung to the bark, its wings marked with two dark circles that looked like eyes. It opened them, revealing another pair beneath. The moth lifted into the air. Aurora watched it vanish between the branches. “Not funny,” she muttered. A laugh answered from somewhere ahead. She froze. It sounded like a child choking back a giggle. Aurora’s hand closed around the pendant. Heat spread into her palm. The laughter stopped. She moved faster, keeping the torch low. Its beam shook over mud and roots. The trees seemed to press closer with every step, their branches knitting above the path until the moon disappeared. A sound followed her. Not footsteps. A soft drag over leaves. Pause. Drag. Pause. Aurora stopped again. The sound stopped. She waited. A twig snapped to her left. The torch found nothing. Another snap came from the right. Then one ahead. The grove had formed a circle around her. Aurora reached into her coat and took out the brass key Isolde had left behind. Its teeth had no pattern she recognised. The metal felt greasy against her fingers. “Isolde?” she called. The trees absorbed the name. A moment passed. Then a woman answered from the dark. “Rory?” Aurora’s breath caught. The voice belonged to Eva. It came from behind her. Aurora turned so quickly that her boot slid in the mud. She caught herself against a tree and aimed the torch through the trunks. “Eva?” No one stood there. The voice came again, closer. “Rory, open the door.” Aurora pressed her palm against the bark. The tree felt warm. Beneath her hand, something shifted under the wood. She jerked away. Eva had not come with her. Eva had never known where Aurora had gone. Rory had left a message on the kitchen table, nothing more. The voice repeated the sentence, matching Eva’s frightened cadence with perfect accuracy. “Rory, open the door.” Aurora backed along the path. “No.” The grove remained silent. Then the voice changed. “Don’t leave me in here.” Her father’s voice. Brendan Carter, calling from the hallway of their Cardiff house. She heard the old floorboards beneath his feet. Heard the impatience he used when she took too long to answer. Aurora’s skin tightened. “You’re not him.” The thing in the trees gave a small, wet cough. “Your mother’s waiting.” Aurora turned and ran. Roots clawed at her boots. Branches struck her shoulders and hair. She kept the torch pointed ahead, though the beam flickered across the path in frantic white bursts. The flowers bent away as she passed, their heads turning after her. The drag followed. Faster now. Aurora reached the edge of the clearing and stopped hard. The trees ended without warning. Moonlight poured over a wide circle of grass. Wildflowers covered the ground in thick, luminous waves. At the centre stood a dead ash tree, its branches twisted into a crown. Beneath it lay the silver pool. The water reflected a sky filled with stars. Aurora looked up. Clouds covered the real sky. The Heartstone pulsed against her chest. Once. Twice. A third time. Something stood on the far side of the pool. Aurora raised the torch. The light reached a woman in a red scarf. Isolde faced the water with her back turned. Her coat hung from her narrow shoulders. Her hair moved though the air remained still. Aurora took one step into the clearing. “Isolde?” The woman lifted her head. A pale hand rose to the side of her face. She pointed across the pool. Aurora followed the gesture. A second figure stood beside the ash tree. It had Isolde’s height and shape, but its limbs hung too long. Its head leaned at an angle that made the neck look broken. The torch beam stopped short of its face. Aurora gripped the brass key. “Isolde, come here.” The woman in the red scarf did not move. The second figure turned towards Aurora. The pendant flared with heat. Aurora stumbled back. The pool’s surface rippled, though nothing had touched it. Stars folded across the water, one by one, as if something beneath the surface had opened its eyes. The woman in the scarf spoke. Her voice came from the pool. “Don’t let it see you.” Aurora’s torch went out. Darkness swallowed the clearing. She heard the water shift. Then the soft drag of feet across the grass. Aurora held her breath. A hand brushed the sleeve of her coat. She did not move. The hand withdrew. From the edge of the clearing, Eva whispered, “Rory?” Aurora kept her eyes shut. Another voice joined it. Her mother. “Come home.” The grass crackled behind her. A third voice spoke from the pool. “Open your eyes.” Aurora’s fingers found the pendant. The crimson stone burned against her palm. Somewhere in the darkness, something inhaled through a mouth too large for a human face. She tightened her grip around the Heartstone and stood perfectly still.
created_at"2026-07-09T18:18:38.786Z" 7/9/2026, 6:18:38 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency457
moderation_latency(null)
generation_time11322
tokens_prompt1038
tokens_completion2317
native_tokens_prompt916
native_tokens_completion1797
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"
usage0.011698
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_01f02ee0fa57ce4c016a4fe5fed9b88197a9ca2f4b93ccbae8"
is_byokfalse
latency217
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-1783621118-4BBxOFzWMMSutMVAkI2D"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783621118-nbLUWp3xaHiKASezJvEv"
upstream_id"resp_01f02ee0fa57ce4c016a4fe5fed9b88197a9ca2f4b93ccbae8"
total_cost0.011698
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)
dialogueSentences19
tagDensity0.263
leniency0.526
rawRatio0
effectiveRatio0
92.80% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1389
totalAiIsmAdverbs2
found
0
adverb"quickly"
count1
1
adverb"perfectly"
count1
highlights
0"quickly"
1"perfectly"
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)
71.20% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1389
totalAiIsms8
found
0
word"pulse"
count2
1
word"unsettled"
count1
2
word"trembled"
count1
3
word"footsteps"
count1
4
word"perfect"
count1
5
word"flickered"
count1
6
word"pulsed"
count1
highlights
0"pulse"
1"unsettled"
2"trembled"
3"footsteps"
4"perfect"
5"flickered"
6"pulsed"
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
narrationSentences198
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences198
filterMatches
0"look"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences212
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen32
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1389
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions5
unquotedAttributions0
matches(empty)
27.32% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions58
wordCount1345
uniqueNames12
maxNameDensity2.45
worstName"Aurora"
maxWindowNameDensity4
worstWindowName"Aurora"
discoveredNames
Carter2
London1
Richmond1
Park1
Heartstone4
Isolde7
Aurora33
Golden1
Empress1
Yu-Fei1
Eva5
Cardiff1
persons
0"Carter"
1"Heartstone"
2"Isolde"
3"Aurora"
4"Yu-Fei"
5"Eva"
places
0"London"
1"Richmond"
2"Park"
3"Cardiff"
globalScore0.273
windowScore0.333
77.88% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences104
glossingSentenceCount3
matches
0"looked like a joke when Aurora first read"
1"looked like eyes"
2"sounded like a child choking back a giggle"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1389
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences212
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs152
mean9.14
std10.42
cv1.14
sampleLengths
09
140
211
326
41
57
638
76
83
96
1049
113
124
133
1428
156
161
179
181
193
205
2120
221
234
244
252
2618
2713
283
295
303
3126
327
338
3421
357
3662
377
383
3931
402
4115
425
4319
445
455
466
475
4825
496
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences198
matches(empty)
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs238
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences212
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1348
adjectiveStacks0
stackExamples(empty)
adverbCount41
adverbRatio0.030415430267062313
lyAdverbCount4
lyAdverbRatio0.002967359050445104
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences212
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences212
mean6.55
std4.6
cv0.702
sampleLengths
09
116
211
36
42
55
611
718
88
91
107
1115
1212
1311
146
153
162
174
1817
1916
209
217
223
234
242
251
2616
272
283
297
306
311
329
331
343
353
362
378
3812
391
404
414
422
436
4412
457
466
473
485
493
44.74% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats11
diversityRatio0.2583732057416268
totalSentences209
uniqueOpeners54
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount9
totalSentences170
matches
0"Only the oak stones stood"
1"Instead, the muddy path continued"
2"Then the Heartstone had begun"
3"Once, she saw movement between"
4"Then one ahead."
5"Then a woman answered from"
6"Then the voice changed."
7"Then the soft drag of"
8"Somewhere in the darkness, something"
ratio0.053
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount36
totalSentences170
matches
0"They rose from the earth"
1"She slipped the phone into"
2"Its crimson centre gave one"
3"She had expected some grand"
4"Their petals shone wetly in"
5"She glanced back."
6"She stared at the time"
7"Her voice travelled farther than"
8"It slid through the trees,"
9"Her fingers curled around the"
10"She started walking."
11"They no longer did."
12"She had come because Isolde"
13"She had promised to return"
14"She had not."
15"She swung the torch around."
16"It opened them, revealing another"
17"It sounded like a child"
18"She moved faster, keeping the"
19"Its beam shook over mud"
ratio0.212
33.53% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount145
totalSentences170
matches
0"Aurora Carter crossed the boundary"
1"The last London bus had"
2"They rose from the earth"
3"Aurora paused before them and"
4"The screen showed one bar"
5"She slipped the phone into"
6"The Heartstone rested against her"
7"Its crimson centre gave one"
8"The grove waited beyond the"
9"Aurora stepped through."
10"That unsettled her first."
11"She had expected some grand"
12"Their petals shone wetly in"
13"She glanced back."
14"The road had vanished."
15"The standing stones remained, but"
16"Aurora took out her phone"
17"She stared at the time"
18"The signal vanished."
19"Her voice travelled farther than"
ratio0.853
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences170
matches(empty)
ratio0
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences39
technicalSentenceCount1
matches
0"The police had treated it as a missing-person case until Yu-Fei found Isolde’s coat folded on the restaurant roof, soaked through with rain that had never falle…"
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
fancyCount4
fancyTags
0"she murmured (murmur)"
1"she whispered (whisper)"
2"she muttered (mutter)"
3"the clearing Eva whispered (whisper)"
dialogueSentences19
tagDensity0.263
leniency0.526
rawRatio0.8
effectiveRatio0.421
84.9159%