Run: 2026-09-23-01M36NK21SSQ936QH0VSP6XAYQ

Run Details

Duration:
32.9s
Cost:
$0.001180
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 had come to the grove because the pendant was warm. Not warm from her skin, or the pocket of her coat. Warm in the way a kettle was warm before it began to sing: a held, rising heat that pressed through the fabric and made her palm sweat. It had started on the walk through Richmond Park, a faint pulse against her ribs. By the time she found the old standing stones, it had grown insistent. She stood at the boundary now, breathing mist into the dark. The stones rose among the oaks, black with rain and older than anything around them. Beyond, the grove lay open beneath a low sky. Wildflowers filled it, pale heads nodding in a wind she couldn’t feel. They had no business blooming in the cold. Their whiteness caught what little moonlight there was and gave it back, faint as milk. Rory looked over her shoulder. The path behind her ran between the trees and vanished. No lamps. No distant traffic. Richmond was there somewhere, full of houses and people and ordinary night noises, but the park had swallowed them whole. She pulled the pendant from beneath her jumper. The crimson stone rested in her palm, thumbnail-sized, its silver chain looped around two fingers. A faint light stirred inside it. “Fine,” she muttered. “I’m here.” She didn’t know what she expected the Heartstone to do. Point at something, perhaps. Speak. It had been given to her by an unknown benefactor, which was exactly the sort of thing that sounded exciting until you were alone in a park at night with no idea what the gift was for. Still, it had warmed near the grove before. She’d felt it on a delivery run, passing the park’s outer wall. A sharp, sudden heat. Then nothing. Tonight it had woken again, and Rory had followed it. That was the reason. Not curiosity. Not fear. Not the nagging sense that if she ignored it, something worse would happen. She stepped between the stones. The air changed against her face. It smelled of wet soil and flowers, sweet enough to make her think of a room that had been shut too long. Her heel sank slightly into the ground. The grass should have been slick with rain, but it brushed dry against the leather of her boot. Behind her, one of the trees creaked. Rory turned. Nothing moved beyond the stones. The path remained empty. She listened, one hand closed around the pendant. The sound came again. A slow, wooden groan from somewhere deep in the trees. “Just a branch,” she said. Her voice seemed to travel too far. It crossed the clearing and came back thinner, as if someone had repeated it from a distance. Rory’s fingers tightened. The Heartstone pulsed once against her palm. She walked into the grove. There was no moonlight here, not properly. The sky above the clearing was the same blank darkness as before, but the flowers gave off a dimness of their own. It made the place visible without making anything clear. Shadows lay under every bloom, under every tuft of grass, and beneath the roots of the oaks that ringed the clearing. Rory counted her steps. Twenty from the stones to the centre. She stopped at nineteen. A sound drifted from the far side of the grove. Three notes, low and even. A bell, maybe. Or a glass being tapped with a fingernail. She waited. The notes came again, in exactly the same rhythm. Rory turned her head, trying to place them. The grove had no gate, no benches, no cottages. Just flowers, stones and trees. The sound came from the trees. She took out her phone. No signal. The screen said 11:48, though she was sure she’d left the flat closer to ten. She checked the time again. The digits held steady. “Brilliant,” she whispered. The bell sounded a third time. Something moved at the edge of her vision, near the standing stones. Rory snapped around. A patch of dark had shifted between two trunks. She saw nothing now but bark and the pale flowers beyond it. She kept her eyes on the trees. Her heartbeat had begun to climb, but she made herself breathe slowly. There were explanations. The bell could be a bird, or a fox, or a branch tapping another branch. The movement could be a trick of the dim light. She had spent enough of her life letting other people tell her what she’d seen. She didn’t need to decide what it meant yet. The pendant burned. Rory sucked in a breath and nearly dropped it. Heat spread across her palm, sharp enough to sting. The light inside the stone brightened, crimson seeping through the gem like something alive beneath ice. A thin line of it appeared on the grass. She followed the glow to the centre of the grove. There, among the flowers, the ground had split. Not wide. A narrow black seam, no longer than her hand, ran through the earth. Its edges were too straight to be natural. The air above it shivered. Rory approached one careful step at a time. Her boots made no sound in the grass. The seam looked deeper than the ground could possibly be. She bent, keeping her weight back, and held the pendant over it. The Heartstone pulsed. The crack answered with a faint red glimmer. A cold draft brushed her knuckles. It smelled of stones after rain and something else—something stale and close, like breath trapped inside a cupboard. Rory straightened. “No.” The word came out quietly. She didn’t know if she was speaking to the pendant or the crack. From the trees, a voice said her name. “Rory.” It sounded like Eva, soft and amused, the way she called from the kitchen when Rory forgot the kettle. Rory’s whole body turned toward it before she could stop herself. No one stood among the trees. Her mouth had gone dry. “Eva?” The flowers rustled. There was no wind. “Rory,” the voice said again. This time it came from behind her. Rory whirled. The stones were empty. The path beyond them was empty. The trees leaned over it in a close black wall. She backed away from the crack. “Come on,” she said to herself. “You’re tired. That’s all.” A sound came from the ground. Not the bell now. A soft, steady knock, as if someone were tapping from below. Once. Twice. Three times. Rory stopped breathing. The flowers around the seam bowed inward. Their stems bent, one by one, toward the dark line. Their petals trembled. The red light inside the Heartstone guttered and flared. Something on the other side of the crack knocked again. The seam widened by the breadth of a fingernail. Rory stumbled back. The grass dragged at her boots. She was still holding the pendant; the chain had tightened around her fingers, cutting into the skin. A figure stood at the edge of the clearing. Rory hadn’t heard it arrive. It was beyond the flowers, half hidden by an oak, so still that at first she thought it was a tree trunk. Then its head tipped a fraction to one side. She could make out no face. Only the shape of a person in a long dark coat, narrow shoulders, hands hanging at its sides. “Who’s there?” Her voice cracked on the last word. The figure did not answer. Rory glanced toward the stones. They were perhaps thirty paces away. She had crossed that distance in seconds on the way in. The path was still there, but it seemed narrower now, the trees pressed close around it. She could run. The thought settled in her mind, practical and clear. Run to the stones. Don’t look back. Keep the pendant in your pocket. Find the nearest road. The figure lifted one hand. Rory’s phone vibrated in her pocket. She flinched and grabbed it. The screen was lit, though she hadn’t heard a call or message come in. A single line showed across the display. UNKNOWN CALLER. She declined it. The phone vibrated again. UNKNOWN CALLER. The figure’s hand remained raised. Rory looked at the screen. Her thumb hovered over the red button. Then the vibration stopped. The grove fell silent. Even the flowers had gone still. She put the phone away without answering. “I’m leaving.” The figure lowered its hand. At the same moment, something moved behind the stones. Rory froze. A second shape stood between the trees at the boundary. This one was closer, its shoulders hunched, its head turned toward her. She could see the pale oval of a face. The face was blank where its features should have been, smooth as a mask left out in the rain. Rory’s hand clenched around the Heartstone. Its heat had become painful. A bead of sweat slid down her temple despite the cold. The first figure took a step toward her. The crack in the ground opened with a quiet sigh. From somewhere below it, a voice spoke in Rory’s own. “Stay.” She ran. The grass caught at her legs. She crossed the clearing in a burst of uneven strides, eyes on the stones, the pendant burning into her fist. The second figure did not move as she passed it. She saw its pale, featureless face turn to follow her. At the boundary, she reached for the nearest stone and almost fell against it. The surface was rough beneath her hand, ridged with age and damp. She shoved through the gap. The air changed. A distant motorway roared back into existence. Wind brushed her cheeks. Somewhere in the park, a dog barked once. Rory spun around. The grove lay beyond the stones, its flowers quiet and pale. There was no figure at the edge of the clearing. No crack in the ground. No red glow. The pendant had cooled in her hand. She leaned against the standing stone and forced air into her lungs. Her phone showed 10:16. She stared at the screen. Then at the empty grove. For a moment, she considered going back. She had come for a reason. The pendant had led her here. Something had opened, or nearly opened, and she needed to know what it meant. From within the grove came the sound of a bell. Three low notes. Rory slipped the Heartstone under her jumper and stepped away from the stones. She did not look back again until she reached the park wall. By then, the pendant had begun to pulse against her chest, warm as a hand held there from the other side.
created_at"2026-09-23T08:19:51.999Z" 9/23/2026, 8:19:51 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1823
moderation_latency(null)
generation_time32844
tokens_prompt792
tokens_completion2564
native_tokens_prompt742
native_tokens_completion2211
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"
usage0.0011797
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151591-cyYNOokJBBSGeSqCpSyZ"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151591-jR5QYsr8IINAk3i4TG97"
upstream_id"resp_0500bbfbdf1ee574016ab38ba82b7487d194faea885c2ea347"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_0500bbfbdf1ee574016ab38ba82b7487d194faea885c2ea347"
is_byokfalse
latency519
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0011797
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
46.15% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags6
adverbTagCount1
adverbTags
0"the voice said again [again]"
dialogueSentences13
tagDensity0.462
leniency0.923
rawRatio0.167
effectiveRatio0.154
94.34% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1768
totalAiIsmAdverbs2
found
0
adverb"slightly"
count1
1
adverb"slowly"
count1
highlights
0"slightly"
1"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)
77.38% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1768
totalAiIsms8
found
0
word"pulse"
count2
1
word"pulsed"
count2
2
word"weight"
count1
3
word"trembled"
count1
4
word"vibrated"
count2
highlights
0"pulse"
1"pulsed"
2"weight"
3"trembled"
4"vibrated"
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
narrationSentences217
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount2
narrationSentences217
filterMatches
0"think"
hedgeMatches
0"began to"
1"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences224
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen37
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1767
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions10
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions38
wordCount1745
uniqueNames6
maxNameDensity1.43
worstName"Rory"
maxWindowNameDensity3
worstWindowName"Rory"
discoveredNames
Richmond2
Park1
Heartstone6
Rory25
Eva1
Three3
persons
0"Rory"
1"Eva"
places
0"Richmond"
1"Park"
globalScore0.784
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences134
glossingSentenceCount2
matches
0"sounded like Eva, soft and amused, the way"
1"seemed narrower now, the trees pressed close around it"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1767
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences224
matches
0"crossed that distance"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs106
mean16.67
std15.59
cv0.935
sampleLengths
011
166
211
359
440
529
65
752
836
921
105
1153
127
132
1417
1514
165
1724
1810
195
2059
2115
2210
2316
242
259
2628
2731
283
296
3036
3147
3224
333
3434
359
3641
375
3838
3911
4024
413
4218
438
441
4530
466
476
483
494
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences217
matches
0"been given"
1"being tapped"
2"was lit"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs285
matches
0"was speaking"
1"were tapping"
2"was still holding"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount1
semicolonCount1
flaggedSentences2
totalSentences224
ratio0.009
matches
0"It smelled of stones after rain and something else—something stale and close, like breath trapped inside a cupboard."
1"She was still holding the pendant; the chain had tightened around her fingers, cutting into the skin."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1747
adjectiveStacks0
stackExamples(empty)
adverbCount66
adverbRatio0.03777904979965655
lyAdverbCount10
lyAdverbRatio0.005724098454493417
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences224
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences224
mean7.89
std5.27
cv0.669
sampleLengths
011
111
227
315
413
511
615
79
812
98
1015
115
1210
132
143
1520
168
1715
186
193
202
2110
224
231
2437
258
2612
274
282
2910
304
312
322
3313
345
356
3622
377
3818
397
402
415
424
438
444
4510
465
477
4817
493
44.64% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats12
diversityRatio0.24553571428571427
totalSentences224
uniqueOpeners55
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount7
totalSentences196
matches
0"Just flowers, stones and trees."
1"Then its head tipped a"
2"Only the shape of a"
3"Then the vibration stopped."
4"Even the flowers had gone"
5"Somewhere in the park, a"
6"Then at the empty grove."
ratio0.036
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount57
totalSentences196
matches
0"It had started on the"
1"She stood at the boundary"
2"They had no business blooming"
3"Their whiteness caught what little"
4"She pulled the pendant from"
5"She didn’t know what she"
6"It had been given to"
7"She’d felt it on a"
8"She stepped between the stones."
9"It smelled of wet soil"
10"Her heel sank slightly into"
11"She listened, one hand closed"
12"Her voice seemed to travel"
13"It crossed the clearing and"
14"She walked into the grove."
15"It made the place visible"
16"She stopped at nineteen."
17"She took out her phone."
18"She checked the time again."
19"She saw nothing now but"
ratio0.291
59.49% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount157
totalSentences196
matches
0"Rory had come to the"
1"It had started on the"
2"She stood at the boundary"
3"The stones rose among the"
4"Wildflowers filled it, pale heads"
5"They had no business blooming"
6"Their whiteness caught what little"
7"Rory looked over her shoulder."
8"The path behind her ran"
9"Richmond was there somewhere, full"
10"She pulled the pendant from"
11"The crimson stone rested in"
12"A faint light stirred inside"
13"She didn’t know what she"
14"It had been given to"
15"She’d felt it on a"
16"A sharp, sudden heat."
17"Tonight it had woken again,"
18"That was the reason."
19"She stepped between the stones."
ratio0.801
25.51% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences196
matches
0"By the time she found"
ratio0.005
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences69
technicalSentenceCount2
matches
0"It had been given to her by an unknown benefactor, which was exactly the sort of thing that sounded exciting until you were alone in a park at night with no ide…"
1"It smelled of wet soil and flowers, sweet enough to make her think of a room that had been shut too long."
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
totalTags5
fancyCount2
fancyTags
0"she muttered (mutter)"
1"she whispered (whisper)"
dialogueSentences13
tagDensity0.385
leniency0.769
rawRatio0.4
effectiveRatio0.308
87.1394%