Run: 2026-07-25-01KYD50KA7SX5FEHDZCPEA13DF

Run Details

Duration:
20.9s
Cost:
$0.011205
Provider:
Meta

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 air changed three steps past the last oak. Rory stopped with one foot lifted, her trainer half-sunk in damp leaf litter. In front of her the trees opened, and behind her Richmond Park was still there, she was sure of it — the distant sodium wash of London to the east, the low hum of the A3 — but between one breath and the next all of that had been muted, as if someone had turned a dial down. The Fae Grove. Isolde's grove. She'd only been here twice before, both times in daylight, both times with Isolde's hand clamped around her wrist like a bracelet. Isolde had not answered her phone in two days. That wasn't like her. The last text had just been coordinates, no words. A pin dropped right here. Rory zipped her delivery jacket higher against the cold. Underneath she still had on her Golden Empress tee, Yu-Fei's little gold dragon logo, and it smelled faintly of fried oil despite being clean. She was supposed to be off tonight. She was supposed to be in her flat above Silas', listening to the bass thump through the floorboards and grading through the stack of flyers she needed to drop tomorrow. Instead she was here. The clearing was wrong from the start. Wildflowers bloomed year-round in the Grove. Isolde had told her that like a brag. Even in January, even in frost, the little white stitchwort and the yellow tormentil pushed up. Tonight they were open. Rory could see them in the thin moonlight that somehow found its way through the canopy, too much moonlight, too white. And every single flower head was turned the wrong way. Not to the moon. Not to the break in the trees. They were all turned to face the center of the clearing. To face her. She took another step and her ankle twinged where the ground was softer than it should have been. The standing stones marked the boundary. Ancient oaks, Isolde had called them, but they weren't oaks, not really. They were stone shaped like trees, bark gone to granite, roots still gripping earth. Eight of them, rough circled. The one closest to her left was weeping. A slow, dark trickle from a fissure at eye level that left a wet track down its stone bark and vanished into moss. Rory's breath puffed. It was November outside the Grove, but here the air had that heavy, warm, preserved feeling, like a greenhouse at night. She touched the pendant without thinking about it. The Heartstone sat on its silver chain against her collarbone, roughly the size of her thumbnail, deep crimson in daylight but now almost black. It was warm. Not from her skin. Warm like a low fever. When she lifted her fingers the little crescent-shaped scar on her left wrist caught the moonlight, thin and white. "Isolde?" she called. Her voice didn't carry. It fell flat, two feet in front of her. No answer. She told herself she was being stupid. Cool-headed, that was what Eva always said about her. Rory Carter, cool-headed, quick out-of-the-box thinking, the one who got them out of Cardiff, out of the house with Evan shouting downstairs. Cool-headed people did not imagine flowers watching them. The Heartstone pulsed. It was a faint throb against her fingertips, like a very slow heartbeat. Pulse. Pause. Pulse. Isolde had told her it pulsed near a Hel portal. The pendant given to her by an unknown benefactor, something that should not be in the Grove at all. Fae and Hel did not overlap. They abhorred each other. Oil and venom. The pulse came again, stronger. Rory let go of the pendant like it had burned her. It didn't swing. It hung straight down, pulling against the chain, pointing not to the ground but slightly forward, toward the empty center of the circle where the grass grew long and unbent. There was a sound. It was soft, behind the muting. A soft, irregular drip. Not the stone weeping. This was wetter. Closer to the ground. She turned her head sharply to the right, into the tree line where the standing stones thickened into real oaks. Something moved. Just at the edge of vision, a smudge darker than the dark between trunks. Gone when she looked straight at it. Her scalp prickled under her straight black hair. She shoved her hands deep into her pockets. Her bright blue eyes kept darting, trying to pin down the depth of the shadows. The Grove was small. She knew it was small. You could walk across it in twenty strides. So why couldn't she see the other side now? The trees on the far edge had receded, swallowed in a grey that wasn't fog. The moonlight stopped. Drip. Drip. It was coming from the center now. "Okay, not funny," she said, louder. "Isolde, if you're doing your scary forest queen shit, I'm not in the mood." Her voice cracked on the last word. Silence came back, and in that silence she heard something else underneath the drip. Breathing. Not hers. Hers was shallow and fast. This was slow. Long, inward draws that seemed to take a whole minute, then out again, stirring the flowers even though there was no wind. The air that came with the exhale was cold and smelled wrong — cold meat, cold earth, iron. The Heartstone was hot now. Rory backed up a step and her shoulder bumped one of the standing stones. It was freezing. The cold shot through her jacket. She jerked away, and as she did, she saw the marks. On the stone she had touched, fingernails had scraped. Fresh. Four lines gouged through moss and lichen, pale stone showing underneath, damp. Not Isolde's. Isolde's nails were always black, always perfect. Drip. Drip. The sound was definitely from the center. She did not want to look at the center. The logical part of her brain, the pre-law part that Brendan had been so sure would make her a great barrister, listed facts. Fact: time moves differently here. An hour inside can be minutes or days outside. Fact: she had been here less than five minutes by her own count. Fact: her phone in her pocket showed 03:17 when she'd checked at the park gate, and now when she pulled it out, the screen was black, not dead, just black, reflecting her face back at her, eyes too wide. Fact: she was not alone. The thing at the edge of vision moved again, but this time it didn't stop at the edge. It crossed from one standing stone to the next while she was looking right at it. Too fast to be a person. Too low. A shape on all fours that kept its back too straight. Rory's throat closed. The Heartstone pulsed in time with the breathing now. Pulse. Inhale. Pulse. Exhale. The flowers were rustling. All of them. All turned inward, all shaking though nothing touched them. She forced herself to look at the center of the grove. The grass there was matted down in a perfect circle, like something had lain there a long time. And in the middle of that flattened circle was a wet spot, black in the moonlight, spreading. Dripping upward, somehow, one fat bead at a time falling from the grass into the air. And the air above that wet spot was thin. She could see through it wrong, like looking through old water. And beyond it, depth where there should be no depth, a suggestion of stone steps leading down. A Hel portal. In the Fae Grove. That was not possible. The breathing stopped. The sudden lack of it was worse than the sound. The flowers went still. Rory stood frozen, her hand around the Heartstone because it was the only thing that was warm, her left wrist burning where the scar was. Her sensible trainers were planted in Fae soil that shouldn't exist in Richmond Park. Then, from the darkness on the far side of the clearing that was too far away, a voice called her name. Familiar. Worried. Welsh. "Rory? Rory, love, what are you doing here so late?" Mum. Jennifer Carter's voice, right there between the stones. Rory's knees nearly gave. She opened her mouth. The thing that had been moving at the edge of the trees stood up behind where the voice had come from. It was tall enough that its head brushed the low branches. Its limbs were too long, jointed backwards in a way that made her stomach turn, but it wore the shape of a person like a loose coat, and the moonlight went through it at the edges. It tilted what might have been a head, listening to her about to answer. Rory bit down on her tongue so hard she tasted blood and did not call back. The shape listened a moment longer, then it made the voice again, but this time it got it slightly wrong. The accent slipped. Too Cardiff, not enough valley. "Rora? Rory? It's cold. Come closer, love. Come closer and look." The wet spot in the center gave a soft, obscene plop, as if something on the other side had just stepped into shallow water. The Heartstone seared against her palm. Rory turned and ran. She didn't run toward the voice. She ran toward the stone that was weeping, the first one she had passed, because that was where she had come in, that had to be where she had come in, even though every standing stone looked the same now and the grey that wasn't fog was pressing in from all sides. The flowers snatched at her ankles. She hit the boundary line and the air changed again with a snap like a soap bubble breaking. Cold November London air hit her lungs. Sirens far off. A plane overhead. The smell of wet dog and leaves that belonged to Richmond Park. She kept running until her trainers hit pavement and her breath was gone, and she did not look back to see if the grove was still there behind her, or how many flowers were turned her way as she left. Behind her, the breathing started again. Only this time, it was on her side of the stones.
created_at"2026-07-25T17:26:21.778Z" 7/25/2026, 5:26:21 PM
model"meta/muse-spark-1.1-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2038
moderation_latency(null)
generation_time20812
tokens_prompt792
tokens_completion2412
native_tokens_prompt889
native_tokens_completion2375
native_tokens_completion_images0
native_tokens_reasoning198
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"auto"
usage0.011205
router(null)
provider_responses
0
endpoint_id"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id"resp_6a64f1bea6e1ae8d61514b3b"
is_byokfalse
latency420
model_permaslug"meta/muse-spark-1.1-20260709"
provider_name"Meta"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1785000381-iEQWQLiB9XieEywsguT1"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1785000381-WFJOfa9Q6GsE7Z8G0Hfv"
upstream_id"resp_6a64f1bea6e1ae8d61514b3b"
total_cost0.011205
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
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
totalTags2
adverbTagCount0
adverbTags(empty)
dialogueSentences5
tagDensity0.4
leniency0.8
rawRatio0
effectiveRatio0
85.40% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1712
totalAiIsmAdverbs5
found
0
adverb"really"
count1
1
adverb"very"
count1
2
adverb"slightly"
count2
3
adverb"sharply"
count1
highlights
0"really"
1"very"
2"slightly"
3"sharply"
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)
56.19% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1712
totalAiIsms15
found
0
word"pulsed"
count3
1
word"throb"
count1
2
word"pulse"
count5
3
word"silence"
count2
4
word"perfect"
count2
5
word"familiar"
count1
6
word"stomach"
count1
highlights
0"pulsed"
1"throb"
2"pulse"
3"silence"
4"perfect"
5"familiar"
6"stomach"
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
narrationSentences173
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences173
filterMatches
0"see"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences176
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen56
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1715
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions4
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions72
wordCount1655
uniqueNames22
maxNameDensity0.73
worstName"Rory"
maxWindowNameDensity2
worstWindowName"Isolde"
discoveredNames
Richmond3
Park3
London2
Fae4
Grove6
Isolde8
Golden1
Empress1
Yu-Fei1
January1
November2
Heartstone6
Eva1
Carter2
Cardiff2
Evan1
Hel3
Brendan1
Rory12
Pulse4
Drip4
Fact4
persons
0"Isolde"
1"Yu-Fei"
2"Heartstone"
3"Eva"
4"Carter"
5"Evan"
6"Brendan"
7"Rory"
8"Pulse"
9"Fact"
places
0"Richmond"
1"Park"
2"London"
3"Fae"
4"Grove"
5"January"
6"Cardiff"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences101
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.583
wordCount1715
matches
0"not to the ground but slightly forward, toward the empty center of the circle"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences176
matches
0"in, that had"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs68
mean25.22
std23.73
cv0.941
sampleLengths
09
171
227
327
470
54
67
790
886
924
108
1155
1216
132
1446
153
1616
1742
185
1944
204
2141
222
2321
2475
252
267
2720
287
2915
3050
315
3234
3322
349
359
369
3789
385
3953
403
4113
4216
4311
4451
4537
4611
473
4814
4939
91.07% Passive voice overuse
Target: ≤2% passive sentences
passiveCount7
totalSentences173
matches
0"been muted"
1"was supposed"
2"was supposed"
3"was turned"
4"was matted"
5"were planted"
6"was gone"
7"were turned"
52.40% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount6
totalVerbs271
matches
0"was weeping"
1"was being"
2"was coming"
3"was looking"
4"were rustling"
5"was weeping"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount0
flaggedSentences2
totalSentences176
ratio0.011
matches
0"In front of her the trees opened, and behind her Richmond Park was still there, she was sure of it — the distant sodium wash of London to the east, the low hum of the A3 — but between one breath and the next all of that had been muted, as if someone had turned a dial down."
1"The air that came with the exhale was cold and smelled wrong — cold meat, cold earth, iron."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount213
adjectiveStacks0
stackExamples(empty)
adverbCount7
adverbRatio0.03286384976525822
lyAdverbCount2
lyAdverbRatio0.009389671361502348
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences176
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences176
mean9.74
std9.05
cv0.929
sampleLengths
09
113
258
33
42
522
69
74
89
95
109
1124
127
1330
144
157
166
178
1816
194
2021
2110
224
237
2411
253
2618
276
2812
2914
305
318
3223
333
3421
358
3624
373
384
395
4019
413
424
439
442
457
469
4722
488
493
51.52% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats16
diversityRatio0.36363636363636365
totalSentences176
uniqueOpeners64
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount7
totalSentences149
matches
0"Instead she was here."
1"Just at the edge of"
2"Too fast to be a"
3"All turned inward, all shaking"
4"Then, from the darkness on"
5"Too Cardiff, not enough valley."
6"Only this time, it was"
ratio0.047
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount42
totalSentences149
matches
0"She'd only been here twice"
1"She was supposed to be"
2"She was supposed to be"
3"They were all turned to"
4"She took another step and"
5"They were stone shaped like"
6"It was November outside the"
7"She touched the pendant without"
8"It was warm."
9"Her voice didn't carry."
10"It fell flat, two feet"
11"She told herself she was"
12"It was a faint throb"
13"They abhorred each other."
14"It didn't swing."
15"It hung straight down, pulling"
16"It was soft, behind the"
17"She turned her head sharply"
18"Her scalp prickled under her"
19"She shoved her hands deep"
ratio0.282
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount107
totalSentences149
matches
0"The air changed three steps"
1"Rory stopped with one foot"
2"The Fae Grove."
3"She'd only been here twice"
4"Isolde had not answered her"
5"That wasn't like her."
6"The last text had just"
7"A pin dropped right here."
8"Rory zipped her delivery jacket"
9"She was supposed to be"
10"She was supposed to be"
11"The clearing was wrong from"
12"Wildflowers bloomed year-round in the"
13"Isolde had told her that"
14"Tonight they were open."
15"Rory could see them in"
16"They were all turned to"
17"She took another step and"
18"The standing stones marked the"
19"They were stone shaped like"
ratio0.718
67.11% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences149
matches
0"Even in January, even in"
1"To face her."
ratio0.013
59.52% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences60
technicalSentenceCount7
matches
0"In front of her the trees opened, and behind her Richmond Park was still there, she was sure of it — the distant sodium wash of London to the east, the low hum …"
1"The pendant given to her by an unknown benefactor, something that should not be in the Grove at all."
2"The air that came with the exhale was cold and smelled wrong — cold meat, cold earth, iron."
3"Her sensible trainers were planted in Fae soil that shouldn't exist in Richmond Park."
4"Its limbs were too long, jointed backwards in a way that made her stomach turn, but it wore the shape of a person like a loose coat, and the moonlight went thro…"
5"The wet spot in the center gave a soft, obscene plop, as if something on the other side had just stepped into shallow water."
6"She ran toward the stone that was weeping, the first one she had passed, because that was where she had come in, that had to be where she had come in, even thou…"
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags2
uselessAdditionCount1
matches
0"she said, louder"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount0
fancyTags(empty)
dialogueSentences5
tagDensity0.4
leniency0.8
rawRatio0
effectiveRatio0
88.7735%