Run: 2026-09-23-01M37J2F8ZEHSFQJMZ7WXYHS6D

Run Details

Duration:
46.3s
Cost:
$0.025064
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 first wrong thing was the birdsong. It came from the trees beyond the standing stones: three bright notes, a pause, three more. Aurora stopped with one hand against an oak and looked up into its black branches. It was nearly midnight. Even the traffic beyond Richmond Park had gone quiet. The bird sang again. Exactly three notes, the same length and pitch. A recording, she thought, though she could think of no reason for anyone to play one out here. The pendant warmed against her chest. She had spent the afternoon trying to ignore it. At the Golden Empress, while she carried a delivery through the kitchen, the little crimson stone had felt hot enough to make her catch her breath. Outside, it cooled. She went back in and felt it heat again beside the rear wall. Yu-Fei had frowned at her for standing there with a bag of noodles in her hands, and Rory had gone about her work. By evening, the heat had settled to a faint pulse. It grew stronger whenever she faced west. She could have stayed in her flat above Silas’ bar. She had wanted to. But a stone from Dymas that warmed near a Hel portal was a poor thing to leave unexplained in the middle of London. She knew of one place where the ordinary world grew thin, and the pendant had guided her toward it all the way to Richmond Park. Now she stood at the edge of the Fae Grove, listening to a bird that did not sound alive. “Fine,” she said, and stepped between the stones. Wildflowers brushed her boots. Their pale heads shone among the grass, blooming as they always did here, careless of season. Moonlight lay across the clearing, though Rory could see no moon through the canopy. The air was warmer than it had been on the path. The birdsong stopped. She waited, expecting it to start again. Somewhere behind her, a branch clicked. She turned. The gap between the stones remained open. Beyond it lay the dark path she had followed in, edged with bracken. Her phone read 11:42. She took a photograph of the gap. In the picture, the standing stones showed as two grey smears, but the path beyond was clear. She put the phone away and walked toward the centre of the clearing. The pendant’s warmth sharpened with every step. She kept her pace slow, looking for a break in the grass, a hollow under the roots, anything that might account for it. Once, a pale shape slipped between two tree trunks to her left. She swung the torch on her phone across them. Bark, ivy, a scatter of white flowers. Nothing moved. As she lowered the light, she heard footsteps. Rory held still. The steps went on for another two paces and stopped. There was a simple explanation. An animal in the undergrowth. Someone else foolish enough to visit the grove at night. She pointed the torch between the trees and called, “Hello?” No answer. “Is someone there?” A stone scraped over stone, low and slow, from the far side of the clearing. The sound raised the hairs along her arms. She crossed toward it, keeping the standing stones in sight over her shoulder. At the base of an oak lay a fallen branch. Its bare twigs cast long shadows through the flowers. There was no loose stone, and no sign of anything heavy being dragged. The silver chain stirred against her neck. Rory looked down. The pendant’s faint inner glow had deepened, turning the edges of the crimson gem black. She reached beneath her shirt and closed her hand around it. Heat spread into her palm. She could still bear it. Whatever it had sensed was close. A footstep sounded behind her. She turned so fast her torch beam streaked across the trees. For an instant she thought she saw the back of a dark coat vanishing around a trunk. Then the light steadied, and the trunk stood alone. Rory’s mouth had gone dry. She backed toward the stones. Her boots flattened flowers with small, crisp sounds. Halfway across the clearing she stopped, and another step landed somewhere to her right. This time she did not turn. She lifted one foot and set it down again. A step answered, a little farther off. Rory tried it once more. The answering step came sooner, almost on top of her own. She ran. The opening between the standing stones should have been thirty paces away. She counted forty before she reached it. On the other side, the path ran straight for a few yards and bent left behind a stand of holly. She hurried to the bend, her breath loud in her ears. The path ended at another pair of standing stones. Rory stared at them. She turned back. Through the first gap, the clearing lay empty, moonlight on white flowers. Through the second lay the same clearing, from an angle that made her head ache. She knew the grove could do this. An hour inside might be minutes outside, or days. She had never heard that it could put the same path at both ends of itself. Her phone read 11:43. She called Silas. The screen showed one bar of signal, then none. The call failed. For a few seconds she stood there looking at his name, wanting the ordinary sound of his voice badly enough to try again. She pocketed the phone instead. From the clearing came the three-note birdsong. Rory gripped the pendant through her shirt. Its pulse was quick now. She followed the heat back through the stones, stopping every few steps to test which direction made it stronger. It led her past the fallen branch and into a narrow space between two oaks. Their roots rose from the ground like knuckles. Wildflowers grew thick on either side, but the earth between the roots was bare. There was a patch of dark ahead. She had taken it for shadow. When she brought the torch closer, she saw that its edges did not follow the roots or the slope of the ground. It stood upright, no wider than a door left ajar, with darkness on both sides of it. The beam entered and found nothing to rest on. Cold air touched her face. It smelled of wet ash. The pendant burned in her hand. She let it fall against her chest and stepped back. As she moved, a faint scrape came from within the dark, followed by another. Slow footsteps, approaching over a hard floor. Rory retreated between the oaks. The sound stopped. For one hopeful moment, she thought whatever was inside had turned away. Then she heard herself breathe in the dark ahead of her. Her own breath was caught high in her throat. She clamped a hand over her mouth. The other breath went on, slow and patient. A voice spoke from the gap. “Rory?” It sounded like Eva, almost. The first syllable was right. The second came out too low, as if someone had heard Eva call her from another room and was trying to remember it. Rory stayed silent. Her thoughts raced through the ground between her and the standing stones, the turns she had taken, the path that had led her back into the grove. If she ran blind, she might come back to these roots. She needed to keep the boundary in view. She edged sideways until she could see the nearest standing stone through the trees. The voice called again, farther away this time. “Rory?” It came from the direction of the stones. She looked toward the dark gap. Nothing emerged. The cold air kept flowing over her face. Rory took another step sideways. Behind her, flowers bent with a soft, spreading rustle. She resisted the urge to turn. If something had come around the oaks, she had not seen it pass her. She moved faster, one eye on the standing stone. The rustle followed at an even distance. At the edge of the clearing, she broke into a run. The stone loomed ahead. Beyond it she saw the narrow path, the bracken, and a slice of open sky. She ran through the gap and stumbled on uneven ground. Her shoulder struck a tree. She caught herself against the bark and kept going until the path opened onto the broad track. Traffic hissed somewhere beyond the park. The sound was faint, but unmistakable. Rory stopped beneath a lamp near the gate. Its light showed mud on her boots and crushed petals caught in the hem of her coat. The pendant had cooled. She checked her phone: 11:44. She had been in the grove long enough for her legs to shake. Outside, two minutes had passed. She looked back along the track. Nothing followed her out of the dark. After a while she made herself turn toward the gate. Her first step rang on the gravel. A second step sounded behind her. Rory stood still beneath the lamp, staring at her shadow stretched across the path. The next step came anyway.
created_at"2026-09-23T16:37:37.191Z" 9/23/2026, 4:37:37 PM
model"openai/gpt-6-sol-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency9727
moderation_latency(null)
generation_time46276
tokens_prompt792
tokens_completion2429
native_tokens_prompt742
native_tokens_completion2358
native_tokens_completion_images0
native_tokens_reasoning516
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"
usage0.025064
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790181457-E4KbfJ9AguLGcm7YSF9Q"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790181457-e0funbdiW4WPpxXFr8pX"
upstream_id"resp_02f6d6b4f077fc30016ab400514f5487d18fadac4e0d52fbb6"
provider_responses
0
endpoint_id"1cfc7d9d-4404-4b8e-9ee4-58ae45c9dcd4"
id"resp_02f6d6b4f077fc30016ab400514f5487d18fadac4e0d52fbb6"
is_byokfalse
latency807
model_permaslug"openai/gpt-6-sol-20260922"
provider_name"OpenAI"
status200
total_cost0.025064
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
totalTags3
adverbTagCount0
adverbTags(empty)
dialogueSentences5
tagDensity0.6
leniency1
rawRatio0
effectiveRatio0
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1518
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
76.94% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1518
totalAiIsms7
found
0
word"pulse"
count2
1
word"warmth"
count1
2
word"footsteps"
count2
3
word"raced"
count1
4
word"loomed"
count1
highlights
0"pulse"
1"warmth"
2"footsteps"
3"raced"
4"loomed"
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
narrationSentences161
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences161
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences164
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen27
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1518
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions2
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions29
wordCount1509
uniqueNames13
maxNameDensity0.86
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Rory"
discoveredNames
Richmond2
Park2
Golden1
Empress1
Rory13
Dymas1
Hel1
London1
Fae1
Grove1
Wildflowers2
Silas1
Eva2
persons
0"Rory"
1"Wildflowers"
2"Silas"
3"Eva"
places
0"Richmond"
1"Park"
2"Golden"
3"Dymas"
4"Hel"
5"London"
6"Fae"
7"Grove"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences118
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1518
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount2
totalSentences164
matches
0"heard that it"
1"saw that its"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs61
mean24.89
std19.03
cv0.765
sampleLengths
07
144
230
36
474
517
662
719
88
945
103
1135
1241
137
1453
158
1613
1730
182
193
2068
2125
2227
235
2437
2532
2615
277
2816
292
3050
319
3234
3332
344
3543
367
3768
3861
3910
4037
418
4223
4324
447
4533
4649
4722
481
498
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences161
matches
0"being dragged"
1"was caught"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs248
matches
0"was trying"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences164
ratio0
matches(empty)
97.77% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount188
adjectiveStacks0
stackExamples(empty)
adverbCount8
adverbRatio0.0425531914893617
lyAdverbCount2
lyAdverbRatio0.010638297872340425
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences164
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences164
mean9.26
std5.48
cv0.592
sampleLengths
07
116
215
34
49
54
68
718
86
99
1026
113
1213
1323
1410
157
1610
174
1823
1925
2019
218
224
2316
2414
2511
263
277
286
292
307
3113
324
337
3417
3513
367
3723
3812
399
407
412
428
433
4410
455
465
4710
4810
492
45.73% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats7
diversityRatio0.2926829268292683
totalSentences164
uniqueOpeners48
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount6
totalSentences156
matches
0"Even the traffic beyond Richmond"
1"Exactly three notes, the same"
2"Somewhere behind her, a branch"
3"Once, a pale shape slipped"
4"Then the light steadied, and"
5"Then she heard herself breathe"
ratio0.038
68.72% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount59
totalSentences156
matches
0"It came from the trees"
1"It was nearly midnight."
2"She had spent the afternoon"
3"She went back in and"
4"It grew stronger whenever she"
5"She could have stayed in"
6"She had wanted to."
7"She knew of one place"
8"she said, and stepped between"
9"Their pale heads shone among"
10"She waited, expecting it to"
11"Her phone read 11:42."
12"She took a photograph of"
13"She put the phone away"
14"She kept her pace slow,"
15"She swung the torch on"
16"She pointed the torch between"
17"She crossed toward it, keeping"
18"Its bare twigs cast long"
19"She reached beneath her shirt"
ratio0.378
78.59% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount119
totalSentences156
matches
0"The first wrong thing was"
1"It came from the trees"
2"Aurora stopped with one hand"
3"It was nearly midnight."
4"The bird sang again."
5"A recording, she thought, though"
6"The pendant warmed against her"
7"She had spent the afternoon"
8"She went back in and"
9"Yu-Fei had frowned at her"
10"It grew stronger whenever she"
11"She could have stayed in"
12"She had wanted to."
13"She knew of one place"
14"she said, and stepped between"
15"Wildflowers brushed her boots."
16"Their pale heads shone among"
17"Moonlight lay across the clearing,"
18"The air was warmer than"
19"The birdsong stopped."
ratio0.763
96.15% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount3
totalSentences156
matches
0"Now she stood at the"
1"If she ran blind, she"
2"If something had come around"
ratio0.019
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences59
technicalSentenceCount2
matches
0"But a stone from Dymas that warmed near a Hel portal was a poor thing to leave unexplained in the middle of London."
1"For a few seconds she stood there looking at his name, wanting the ordinary sound of his voice badly enough to try again."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags3
uselessAdditionCount0
matches(empty)
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount1
fancyTags
0"She pointed (point)"
dialogueSentences5
tagDensity0.4
leniency0.8
rawRatio0.5
effectiveRatio0.4
92.1301%