Run: 2026-07-09-01KX40F7PZK08D7QK7CYC9GERZ

Run Details

Duration:
12.3s
Cost:
$0.013534
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
Rory knew Richmond Park well enough to distrust it at night. In daylight, the park sprawled beneath the city’s gaze: deer nosing through bracken, cyclists cutting along the roads, children shrieking near the ponds. At midnight, the gates stood chained and the trees gathered close, their branches knitting over the narrow track like fingers. She parked the borrowed scooter beside a locked service entrance and killed the engine. The sudden silence pressed against her ears. For a moment, she remained astride the seat, gloved hands resting on the handlebars. Her breath smoked in front of her. Beyond the gate, the park was a wash of black trunks and pale grass under a moon veiled by cloud. She touched the pendant beneath her coat. The Heartstone was warm. Not body-warm. Warmer. A small, steady heat against her sternum, as though someone had tucked a live coal beneath her shirt. Its deep crimson surface gave off the faintest inner glow when she drew it out, barely visible through her fingers. “Brilliant,” she muttered. She had come because of a message. Three words, sent from an unknown number at 11:17 p.m. COME TO THE GROVE. A second message followed before she could reply. BRING THE STONE. No name. No explanation. Just a location pin dropped in Richmond Park, near a section she had never seen marked on any map. She should have shown it to someone. Silas, perhaps. Eva. Anyone with better judgment than the woman who had driven across London alone in the middle of the night because a mystery had asked politely. But the pendant had begun pulsing the moment she opened the map. Not visibly. She felt it, faintly, through the silver chain. A rhythm like a second heartbeat. Now it had gone warm. Rory dismounted and wheeled the scooter behind a clump of hawthorn. She checked the path beyond the gate, then climbed over. Her boots landed softly on damp earth. The air smelled wrong. Richmond Park smelled of mud, leaf rot, cold stone. This smelled sweet. Wet flowers and crushed herbs, rich enough to taste. Somewhere nearby, something had bloomed despite the season. She switched on her torch. The beam caught the track and a scattering of white petals. Rory stopped. There were no flowers in the park at this time of year. Not like these, anyway. Small, five-pointed blossoms grew along the path in clusters, their stems rising through the dead grass. She crouched and held the light over them. The petals were white, but their centers were dark blue. Not purple. Blue as ink. She stood again. The pin on her phone insisted the grove lay another half mile ahead. The map showed no path. Yet one had appeared beneath her feet: narrow, clear, and winding between the trees. She followed it. Her torch seemed weaker under the branches. Its beam reached only a few yards before dissolving in darkness. The park fell away behind her almost immediately. No city glow showed through the trees. No aircraft crossed the sky. Even the traffic on the distant roads had vanished. Rory glanced over her shoulder. The gate was gone. She had walked perhaps fifty paces. In its place stood a line of ancient stones between the trees. They were taller than she was, narrow slabs of gray rock thickly furred with moss. Their surfaces were scored with shallow marks that might have been writing or cracks. She returned to the path. Her phone displayed one bar of signal, then none. The time read 12:04 a.m. She frowned. She had left the flat at 11:43. The drive alone had taken nearly twenty minutes. The screen flickered. 12:04 became 11:58. Then 12:04 again. A sound came from the trees to her left. A footstep. Rory’s hand closed around the pendant. She waited. Nothing. The darkness between the trunks held still. The flowers along the path trembled in a breeze she couldn’t feel. “Hello?” she called. Her voice went farther than it should have. It seemed to travel through the trees, thin and bright, then return from somewhere ahead. Hello. The echo did not sound like her. Rory’s shoulders tightened. She kept walking. The path curved around a stand of oaks. Their roots knuckled out of the soil, twisting across the track. She stepped over them and saw a pale flicker at the edge of her vision. Something had moved between the trees behind her. She turned quickly. Nothing. Her pulse thudded once, hard. She raised the torch and swept it across the undergrowth. Bracken. Thorn. Black trunks. No person. The pendant warmed further. Ahead, the trees opened. The grove lay beyond them, a clearing under a roof of interlocking branches. Wildflowers carpeted the grass in every color: red, gold, violet, white. They bloomed in impossible profusion, each petal wet with silver light. At the far edge stood another ring of stones, larger than those at the boundary. Their tops leaned inward, forming a rough crown. Rory stepped into the clearing. The air changed. The cold disappeared. Heat rose from the soil through her boots. The flowers gave off a soft, breathing rustle, though none of them moved. In the center of the grove stood a dead oak. It was enormous, its trunk split down the middle, its branches bare. A length of silver chain hung from one broken limb. It swayed gently. No wind touched Rory’s face. She approached, every instinct telling her not to. The chain held a small object at its end. A key. It was black, old-fashioned, and long enough to fit a lock meant for a door in a church. Beneath it, carved into the oak, were three words. BRING HER HOME. Rory stared at the inscription. “Who?” she asked. The flowers whispered. Not in the wind. In voices. A woman sobbed somewhere behind her. Rory spun around. The clearing was empty. Then came a man’s voice, low and furious, from the dark between the stones. “You always make this difficult.” Her stomach turned cold. Evan. It was not merely a similar voice. It was his voice: the flat impatience, the slight drag on the final word. She remembered it in the hallway outside their old flat, in the kitchen, beside her ear when he wanted her to know that no one else would put up with her. Rory backed away from the oak. “No,” she said. The voice came again, closer. “Rory.” Her name moved through the clearing from several directions. She looked toward the stones. A shape stood behind one of them. Only part of a shoulder. A sliver of pale cheek. Rory lifted her torch. The beam struck empty stone. The shape was gone. She forced herself to breathe slowly. In through her nose. Out through her mouth. Panic was a luxury, and she had no intention of indulging it. Something was using a voice she recognized. That did not mean Evan was here. It meant something had heard her fear and found a way to wear it. The pendant pulsed against her chest. Once. Twice. The glow beneath its crimson surface brightened. At the boundary stones, a thin vertical line of red light appeared in the air. A seam. It ran from the ground to the height of a doorway, wavering as though seen through heat. Beyond it lay nothing she could make sense of—only deep, shifting darkness threaded with distant pinpricks of gold. A Hel portal. Rory had never seen one before, but she knew it instantly. The grove had not lured her here for the key. It had lured her here for the stone. Something moved behind her. This time she heard the grass bend. Rory did not turn. She watched the red seam in the air and counted the breaths between pulses of the pendant. One. Two. Three. Behind her, a foot dragged over the earth. Four. The sobbing began again, soft and broken. Five. “Rory,” Eva’s voice whispered. She nearly turned. Eva had a way of saying her name that made it sound like a question, a challenge, an invitation. The voice behind her had copied it perfectly. Almost. The real Eva would have cursed by now. Rory slipped one hand into her coat pocket and closed it around her phone. The other wrapped around the Heartstone. Its heat had become painful. “Whatever you are,” she said, keeping her voice level, “you’re not getting this.” The clearing went silent. Even the flowers stopped whispering. Something exhaled behind her. The sound was enormous. Not a breath from lungs, but a long collapse of air through a vast, hollow throat. Rory ran. She sprinted for the standing stones, the portal burning red ahead. The flowers snagged at her boots. Their stems tightened like cords around her ankles, but she kicked free and kept moving. A hand brushed the back of her coat. She felt the fingers through the fabric—long, cold, and impossibly light. She crossed the line of stones. The world lurched. For one sickening instant, she stood nowhere. There was no ground beneath her, no sky above, only the sensation of falling through a narrow space while something reached after her from the grove. Then she hit earth. Rory rolled, struck her shoulder against a root, and came up on her knees. The park surrounded her. The service gate stood twenty yards away, chained and ordinary beneath the moon. Traffic murmured beyond the walls. A fox barked somewhere in the distance. Her phone read 12:19 a.m. She had been gone fifteen minutes. Rory rose slowly. Her hands shook as she checked the pendant. The glow had faded, but the stone remained warm. Behind her, between the trees, the ancient standing stones formed a silent boundary. At their center, something pale watched her. Rory held her breath. The shape was too tall to be human. It stood with its head tilted, as if listening. Then it lifted one hand. Not waving. beckoning. Rory ran for the gate without looking back.
created_at"2026-07-09T17:58:06.822Z" 7/9/2026, 5:58:06 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency367
moderation_latency(null)
generation_time11229
tokens_prompt812
tokens_completion2657
native_tokens_prompt742
native_tokens_completion2132
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"
usage0.013534
router(null)
provider_responses
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endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_0db12ceddfa56226016a4fe12ee47c819788ea07c8fbbb515e"
is_byokfalse
latency231
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-1783619886-zX7fvQFRMwOdfKVHyXTT"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783619886-IER22qUMhPMZJseSQ1F7"
upstream_id"resp_0db12ceddfa56226016a4fe12ee47c819788ea07c8fbbb515e"
total_cost0.013534
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
totalTags6
adverbTagCount0
adverbTags(empty)
dialogueSentences8
tagDensity0.75
leniency1
rawRatio0
effectiveRatio0
81.96% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1663
totalAiIsmAdverbs6
found
0
adverb"softly"
count1
1
adverb"quickly"
count1
2
adverb"gently"
count1
3
adverb"slowly"
count2
4
adverb"perfectly"
count1
highlights
0"softly"
1"quickly"
2"gently"
3"slowly"
4"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)
66.93% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1663
totalAiIsms11
found
0
word"silence"
count1
1
word"flickered"
count1
2
word"trembled"
count1
3
word"echo"
count1
4
word"flicker"
count1
5
word"pulse"
count1
6
word"stomach"
count1
7
word"pulsed"
count1
8
word"wavering"
count1
9
word"sense of"
count1
10
word"lurched"
count1
highlights
0"silence"
1"flickered"
2"trembled"
3"echo"
4"flicker"
5"pulse"
6"stomach"
7"pulsed"
8"wavering"
9"sense of"
10"lurched"
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
narrationSentences225
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount1
narrationSentences225
filterMatches(empty)
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences227
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen31
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1661
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions6
unquotedAttributions0
matches(empty)
83.33% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions36
wordCount1643
uniqueNames8
maxNameDensity1.22
worstName"Rory"
maxWindowNameDensity2.5
worstWindowName"Rory"
discoveredNames
Richmond3
Park3
Heartstone2
London1
Rory20
Evan2
Hel1
Eva4
persons
0"Rory"
1"Evan"
2"Eva"
places
0"Richmond"
1"Park"
2"London"
globalScore0.891
windowScore0.833
88.52% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences122
glossingSentenceCount3
matches
0"appeared beneath her feet: narrow, clear, and winding between the trees"
1"seemed weaker under the branches"
2"as if listening"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.602
wordCount1661
matches
0"Not a breath from lungs, but a long collapse of air through a vast, hollow throat"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences227
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs148
mean11.22
std12.29
cv1.095
sampleLengths
011
143
221
341
47
54
641
73
87
910
104
118
123
1323
1435
1512
1616
175
1828
194
2029
215
2211
232
2440
2515
263
2732
283
2947
305
314
326
3341
345
3514
3617
373
383
393
409
412
426
432
441
4519
463
4723
481
497
99.03% Passive voice overuse
Target: ≤2% passive sentences
passiveCount4
totalSentences225
matches
0"was gone"
1"were scored"
2"was gone"
3"been gone"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs274
matches
0"was using"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount2
semicolonCount0
flaggedSentences2
totalSentences227
ratio0.009
matches
0"Beyond it lay nothing she could make sense of—only deep, shifting darkness threaded with distant pinpricks of gold."
1"She felt the fingers through the fabric—long, cold, and impossibly light."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1648
adjectiveStacks0
stackExamples(empty)
adverbCount65
adverbRatio0.03944174757281554
lyAdverbCount22
lyAdverbRatio0.013349514563106795
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences227
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences227
mean7.32
std5.25
cv0.718
sampleLengths
011
123
220
314
47
514
67
720
87
94
102
111
1218
1320
143
157
1610
174
188
193
202
212
2219
237
242
251
2625
2712
282
298
306
315
3211
3310
347
354
369
373
389
398
405
4111
422
4312
444
4516
468
4710
482
493
44.71% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats12
diversityRatio0.28634361233480177
totalSentences227
uniqueOpeners65
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount9
totalSentences187
matches
0"Just a location pin dropped"
1"Somewhere nearby, something had bloomed"
2"Even the traffic on the"
3"Then 12:04 again."
4"Then came a man’s voice,"
5"Only part of a shoulder."
6"Even the flowers stopped whispering."
7"Then she hit earth."
8"Then it lifted one hand."
ratio0.048
98.07% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount57
totalSentences187
matches
0"She parked the borrowed scooter"
1"Her breath smoked in front"
2"She touched the pendant beneath"
3"Its deep crimson surface gave"
4"She had come because of"
5"She should have shown it"
6"She felt it, faintly, through"
7"She checked the path beyond"
8"Her boots landed softly on"
9"She switched on her torch."
10"She crouched and held the"
11"She stood again."
12"She followed it."
13"Her torch seemed weaker under"
14"Its beam reached only a"
15"She had walked perhaps fifty"
16"They were taller than she"
17"Their surfaces were scored with"
18"She returned to the path."
19"Her phone displayed one bar"
ratio0.305
80.32% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount142
totalSentences187
matches
0"Rory knew Richmond Park well"
1"She parked the borrowed scooter"
2"The sudden silence pressed against"
3"Her breath smoked in front"
4"She touched the pendant beneath"
5"The Heartstone was warm."
6"A small, steady heat against"
7"Its deep crimson surface gave"
8"She had come because of"
9"A second message followed before"
10"She should have shown it"
11"Anyone with better judgment than"
12"She felt it, faintly, through"
13"A rhythm like a second"
14"Rory dismounted and wheeled the"
15"She checked the path beyond"
16"Her boots landed softly on"
17"The air smelled wrong."
18"Richmond Park smelled of mud,"
19"This smelled sweet."
ratio0.759
26.74% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences187
matches
0"Now it had gone warm."
ratio0.005
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences59
technicalSentenceCount2
matches
0"A small, steady heat against her sternum, as though someone had tucked a live coal beneath her shirt."
1"Eva had a way of saying her name that made it sound like a question, a challenge, an invitation."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags6
uselessAdditionCount0
matches(empty)
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags6
fancyCount2
fancyTags
0"she muttered (mutter)"
1"Eva’s voice whispered (whisper)"
dialogueSentences8
tagDensity0.75
leniency1
rawRatio0.333
effectiveRatio0.333
88.9873%