Run: 2026-09-03-01M1K59P767XNCYFG1KS279206

Run Details

Duration:
42.0s
Cost:
$0.015807
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 gate to Richmond Park was already locked. Rory stood with her hands on the handlebars of the Golden Empress delivery bike, the front basket still smelling faintly of chow mein and plastic, and stared at the chain. It wasn't high. It wasn't supposed to stop her. Eva's text had said midnight, by the stones, don't be late. Just that. No explanation why Eva would want to meet in the middle of a park in November after three weeks of not answering her phone. Rory had told herself on the ride over that she was just checking, that she would look and leave, but now the cold bit through her thin delivery jacket and the dark beyond the gate looked absolute. She lifted the bike over. The tyres thumped softly on the other side. She didn't get back on. She walked it instead, the path narrowing under the oaks, the city's sodium glow falling away behind her until the only light was the weak white cone of the bike's dynamo lamp. Her breath fogged. Her shoulder-length black hair kept catching on the collar of her jacket and she had to keep pushing it back behind her ears with cold fingers. The pendant Eva once joked made her look like a fortune teller knocked against her sternum with every step, the silver chain cold against her skin. The heartstone itself was not cold. Rory stopped walking. It had been a gift with no note, left in her pigeonhole above Silas' bar two months ago. Deep crimson, roughly the size of her thumbnail, set on that silver chain. It never did much except catch the light. Now it pulsed. A faint, slow heat spread from it through the fabric of her thermal shirt, as if someone had cupped it in warm hands. A faint inner glow bled through the cotton. She pulled it free of her shirt and stared at it. The glow was not reflecting. It was coming from inside the stone, a low throb of light that matched the heat. That was wrong. She knew what that meant, even if she didn't want to name it. She'd been told once, on a night she tried hard not to think about, that it pulsed with warmth when near a Hel portal. There were no Hel portals in Richmond Park. There was only Isolde's grove. She should have turned around then. That was the cool-headed thing, the intelligent thing, the thing Brendan Carter's daughter who had almost finished Pre-Law at Cardiff would have done. Instead she thought of Eva, who had been the one to call her in Cardiff and say, come to London, you can't stay with him, Evan will kill you if you stay. Eva who had found her the flat above Silas' bar and the job with Yu-Fei Cheung when no one else would have hired a girl who flinched at loud voices. Eva's text: by the stones. Rory left the bike against a tree and went on foot. She knew the way even in the dark. Past the dead bracken, past the fallen oak, then left where the path seemed to end. The ancient oak standing stones marked the boundary, though most people who walked their dogs in daylight thought they were just some National Trust folly. Five stones, shoulder-high, grey and lichen-spotted, set in a broken circle around a clearing that was too quiet. She slipped between two of them and the air changed. Inside, it wasn't November. The grove was a pocket, she had been told. Between Earth and the Fae realm. A hidden clearing where wildflowers bloomed year-round no matter the frost outside. And they were blooming now. In the dark. Small white stars and pale yellow bells and impossible blue flowers that shouldn't have survived the first frost, all open, all luminous in the thin moonlight as if they were holding the day inside their petals. The grass under her trainers was soft and springy and not at all dead. The air smelled like wet earth and crushed green stems, too sweet. And the time was wrong. Her phone said 00:04 when she stepped between the stones. She took three steps into the flowers and it said 00:03. She stared at it, thumb hovering over Eva's name, and watched it flick to 00:02 without her touching anything. Time moves differently, Isolde had said. An hour inside can be minutes or days outside. Rory shoved the phone into her pocket. The heartstone was hotter now, its pulse quicker. Not painful yet, but insistent, a small heart beating against her own. She cupped it in her palm without thinking and the crescent-shaped scar on her left wrist, pale and thin from when she was nine and fell on a broken bottle by the river in Cardiff, caught the red light. "Eva?" she called. Her voice went flat. The grove was only thirty feet across but the sound didn't carry. It fell straight down into the flowers. No answer. No movement except for the faint sway of the wildflowers where there was no wind. That was the first off thing she could name. There should have been sound. Even at night, Richmond Park was never silent. There were always distant cars, planes on the approach to Heathrow, foxes screaming. Here, the silence had weight. It pressed on her ears until she could hear the blood moving in her head and the small, quick breaths she was trying to keep even. She turned slowly, scanning the tree line. The oaks beyond the stones were too still. Their branches made a hard black lace against the sky and none of them moved. Then, at the edge of her vision, something did. She snapped her head to the left. Nothing. Just flowers and stone. But the afterimage stayed — a suggestion of height, a thinness, something tall standing just behind the second stone that had not been there a second ago. Rory's mouth went dry. She told herself it was a trick of the light, the way bright blue eyes adapted to dark, but her body had already taken a half-step back toward the stones. The heartstone throbbed harder against her palm, heat sharpening to an almost burning point. "Eva, if this is a joke it's not funny," she said, louder. The grove didn't answer. Instead, the flowers to her right rustled. She looked down. A clear track was forming in the wildflowers, as if something with no weight was stepping through them, bending the stems. One after another, ten feet away, the white star-flowers folded over in a line that curved toward her. No feet. No shape. Just the slow, deliberate press of the grass. Rory's quick, out-of-the-box thinking, the thing that had gotten her through exams and through leaving Evan with nothing but a rucksack and Yu-Fei's delivery rota, went very quiet and very fast. She counted. Five stones. The gap she had come through was behind her, between the two mossiest ones. The track in the flowers was between her and it. The rustling stopped. For a long second the only sound was her own breathing and the too-loud pulse of the pendant. The glow from it was stronger now, painting the underside of her chin red. Then the standing stones made a sound. It was not a sound stone should make. A low creak, like old wood under strain, like an oak shifting its roots. The tallest stone, directly opposite where she stood, shuddered. A thin seam appeared down its centre where there had been solid rock before, a vertical line of absolute black that breathed cold air. The cold hit her even from fifteen feet away, and with it came a smell like turned earth and iron, like a grave opened after rain. The heartstone flared white-hot against her skin and she hissed and dropped it, but it didn't fall. It hung in the air where it was, the silver chain suspended, the deep crimson stone now blazing with that inner light, pointing straight at the dark seam like a compass needle. Rory understood, very suddenly and without wanting to, that she had not been called here by Eva at all. Something else had learned how to text. Behind her, where the gap between the two mossy stones had been, there was no gap anymore. There were only more flowers, unbroken and glowing, and between the oaks where the path should have been, there was a figure. It was too tall and too still, and she could not look at it directly. Every time she tried to focus, her eyes slid off it, catching only the impression of bark-like skin and branches that were arms and a face that was mostly shadow. It stood just at the edge of vision, exactly where that earlier flicker had been, and it was watching her. She felt the certainty of it like a hand on the back of her neck. It had been there the whole time she had been calling Eva's name. It had been listening to her call. The seam in the stone widened another inch with a soft sigh. The cold deepened. The wildflowers nearest to it began to blacken, not wilting but bleaching, losing their impossible color. Rory's breath came in small white puffs that vanished too fast. She reached without looking, fingers finding the burning heartstone where it hung. The silver chain seared her palm. She yanked it down, and the light stuttered. She did not run for the place where the gap had been. That was what it wanted her to do. Instead she turned and drove her shoulder straight at the smallest stone, the one with the lichen, and scrambled over it, stone scraping her jacket, wildflowers tearing under her trainers. She hit the real air outside the grove like hitting cold water. Sound rushed back — a dog barking impossibly far away, a siren on the A3, the wind in the real oaks. She landed hard on dead leaves and wet mud, the bike's dynamo light still burning weakly where she'd left it, the pendant in her fist now dull and cool again, just a thumbnail-sized crimson stone on a silver chain. Behind her, the stones stood solid and unbroken in a circle. The clearing beyond them was dark and empty and held only dead November bracken. No flowers. No light. No figure. Except, for a half-second, when she looked out of the corner of her bright blue eyes as she grabbed the bike, she thought she saw something tall and thin step gently back between the trees, as if it had followed her to the boundary and could not cross. Rory didn't look again. She got on the bike and pedaled, her left wrist throbbing where the scar was, until the gate and the road and the orange lights above Silas' bar came back into view, and she didn't stop to see if the time on her phone ever corrected itself.
created_at"2026-09-03T08:13:51.724Z" 9/3/2026, 8:13:51 AM
model"meta/muse-spark-1.2-20260805"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6047
moderation_latency(null)
generation_time41926
tokens_prompt792
tokens_completion2612
native_tokens_prompt746
native_tokens_completion3500
native_tokens_completion_images0
native_tokens_reasoning1186
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"
usage0.0158075
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788423231-iIV0GsBGAX32nCZ0ACLP"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788423231-Eh07hrTu2GdtHh07wBZq"
upstream_id"resp_6a992c428432955b95784550"
provider_responses
0
endpoint_id"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id"resp_6a992c428432955b95784550"
is_byokfalse
latency3211
model_permaslug"meta/muse-spark-1.2-20260805"
provider_name"Meta"
status200
total_cost0.0158075
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
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
totalTags4
adverbTagCount0
adverbTags(empty)
dialogueSentences2
tagDensity1
leniency1
rawRatio0
effectiveRatio0
80.87% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1830
totalAiIsmAdverbs7
found
0
adverb"softly"
count1
1
adverb"slowly"
count1
2
adverb"very"
count3
3
adverb"suddenly"
count1
4
adverb"gently"
count1
highlights
0"softly"
1"slowly"
2"very"
3"suddenly"
4"gently"
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)
64.48% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1830
totalAiIsms13
found
0
word"pulsed"
count2
1
word"throb"
count1
2
word"warmth"
count1
3
word"pulse"
count2
4
word"silence"
count1
5
word"weight"
count2
6
word"scanning"
count1
7
word"throbbed"
count1
8
word"grave"
count1
9
word"flicker"
count1
highlights
0"pulsed"
1"throb"
2"warmth"
3"pulse"
4"silence"
5"weight"
6"scanning"
7"throbbed"
8"grave"
9"flicker"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"hung in the air"
count1
highlights
0"hung in the air"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells1
narrationSentences140
matches
0"d with warmth"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount3
narrationSentences140
filterMatches
0"look"
hedgeMatches
0"seemed to"
1"tried to"
2"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences140
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen49
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1832
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions9
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions50
wordCount1774
uniqueNames22
maxNameDensity0.56
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Eva"
discoveredNames
Richmond3
Park3
Golden1
Empress1
Eva9
November3
Deep1
Hel2
Isolde2
Brendan1
Carter1
Pre-Law1
Cardiff3
London1
Evan2
National1
Trust1
Earth1
Fae1
Heathrow1
Yu-Fei1
Rory10
persons
0"Eva"
1"Isolde"
2"Brendan"
3"Carter"
4"Evan"
5"Yu-Fei"
6"Rory"
places
0"Richmond"
1"Park"
2"Hel"
3"Cardiff"
4"London"
5"Heathrow"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences104
glossingSentenceCount1
matches
0"smelled like wet earth and crushed green s"
90.83% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.092
wordCount1832
matches
0"Not painful yet, but insistent, a small heart beating against her own"
1"not wilting but bleaching, losing their impossible color"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences140
matches
0"checking, that she"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs49
mean37.39
std29.69
cv0.794
sampleLengths
08
1113
25
3100
46
53
673
732
840
98
105
1196
1211
1377
144
1585
1612
1745
1815
1966
203
2123
2217
2366
2430
259
2639
2748
2812
2911
3054
3159
323
3332
347
3581
3649
3719
387
3939
4080
4120
4242
4326
4450
4572
4629
4750
4851
97.74% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences140
matches
0"been told"
1"been told"
2"been called"
0.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount9
totalVerbs283
matches
0"was just checking"
1"was not reflecting"
2"was coming"
3"were blooming"
4"were holding"
5"was trying"
6"was forming"
7"was stepping"
8"was watching"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount2
semicolonCount0
flaggedSentences2
totalSentences140
ratio0.014
matches
0"But the afterimage stayed — a suggestion of height, a thinness, something tall standing just behind the second stone that had not been there a second ago."
1"Sound rushed back — a dog barking impossibly far away, a siren on the A3, the wind in the real oaks."
93.98% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount256
adjectiveStacks0
stackExamples(empty)
adverbCount12
adverbRatio0.046875
lyAdverbCount3
lyAdverbRatio0.01171875
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences140
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences140
mean13.09
std10.04
cv0.767
sampleLengths
08
130
23
36
411
52
624
737
85
98
105
1132
123
1326
1426
156
163
1718
1813
198
203
2123
228
2311
245
2516
263
2713
2824
298
305
316
3223
3332
3430
355
3611
378
3816
3925
4018
4110
424
439
446
4512
465
473
4836
4914
35.00% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats21
diversityRatio0.2642857142857143
totalSentences140
uniqueOpeners37
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount7
totalSentences129
matches
0"Instead she thought of Eva,"
1"Then, at the edge of"
2"Just flowers and stone."
3"Instead, the flowers to her"
4"Just the slow, deliberate press"
5"Then the standing stones made"
6"Instead she turned and drove"
ratio0.054
89.77% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount42
totalSentences129
matches
0"It wasn't high."
1"It wasn't supposed to stop"
2"She lifted the bike over."
3"She didn't get back on."
4"She walked it instead, the"
5"Her breath fogged."
6"Her shoulder-length black hair kept"
7"It had been a gift"
8"It never did much except"
9"She pulled it free of"
10"It was coming from inside"
11"She knew what that meant,"
12"She'd been told once, on"
13"She should have turned around"
14"She knew the way even"
15"She slipped between two of"
16"Her phone said 00:04 when"
17"She took three steps into"
18"She stared at it, thumb"
19"She cupped it in her"
ratio0.326
84.03% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount97
totalSentences129
matches
0"The gate to Richmond Park"
1"Rory stood with her hands"
2"It wasn't high."
3"It wasn't supposed to stop"
4"Eva's text had said midnight,"
5"Rory had told herself on"
6"She lifted the bike over."
7"The tyres thumped softly on"
8"She didn't get back on."
9"She walked it instead, the"
10"Her breath fogged."
11"Her shoulder-length black hair kept"
12"The pendant Eva once joked"
13"The heartstone itself was not"
14"Rory stopped walking."
15"It had been a gift"
16"It never did much except"
17"A faint, slow heat spread"
18"A faint inner glow bled"
19"She pulled it free of"
ratio0.752
77.52% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences129
matches
0"Now it pulsed."
1"Even at night, Richmond Park"
ratio0.016
49.69% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences69
technicalSentenceCount9
matches
0"A faint, slow heat spread from it through the fabric of her thermal shirt, as if someone had cupped it in warm hands."
1"That was the cool-headed thing, the intelligent thing, the thing Brendan Carter's daughter who had almost finished Pre-Law at Cardiff would have done."
2"The ancient oak standing stones marked the boundary, though most people who walked their dogs in daylight thought they were just some National Trust folly."
3"Small white stars and pale yellow bells and impossible blue flowers that shouldn't have survived the first frost, all open, all luminous in the thin moonlight a…"
4"But the afterimage stayed — a suggestion of height, a thinness, something tall standing just behind the second stone that had not been there a second ago."
5"A clear track was forming in the wildflowers, as if something with no weight was stepping through them, bending the stems."
6"One after another, ten feet away, the white star-flowers folded over in a line that curved toward her."
7"Rory's quick, out-of-the-box thinking, the thing that had gotten her through exams and through leaving Evan with nothing but a rucksack and Yu-Fei's delivery ro…"
8"Except, for a half-second, when she looked out of the corner of her bright blue eyes as she grabbed the bike, she thought she saw something tall and thin step g…"
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags4
uselessAdditionCount1
matches
0"she said, louder"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount0
fancyTags(empty)
dialogueSentences2
tagDensity1
leniency1
rawRatio0
effectiveRatio0
85.4640%