Run: 2026-02-19-01KHTYB9PJS670R43KHJHEV2YG

Run Details

Duration:
19.6s
Cost:
$0.008761
Provider:
Anthropic

Model input

System
You are an expert fiction writer. Always keep the following rules in mind: - Write in past tense and use General English spelling, grammar, and colloquialisms/slang. - Write in active voice - Always follow the "show, don't tell" principle. - Avoid adverbs and cliches and overused/commonly used phrases. Aim for fresh and original descriptions. - Convey events and story through dialogue. - Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. - Skip "he/she said said" dialogue tags and convey people's actions or face expressions through their speech - Avoid mushy dialog and descriptions, have dialogue always continue the action, never stall or add unnecessary fluff. Vary the descriptions to not repeat yourself. - Put dialogue on its own paragraph to separate scene and action. - Reduce indicators of uncertainty like "trying" or "maybe" When writing text: - NEVER conclude the scene on your own, follow the beat instructions very closely. - NEVER end with foreshadowing. - NEVER write further than what I prompt you with. - AVOID imagining possible endings, NEVER deviate from the instructions. - STOP EARLY if the continuation contains what was required in the instructions. You do not need to fill out the full amount of words possible.
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <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> Continue the story using the following instructions: <instructions> 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. </instructions>

Model response

AI
Aurora pushed through the oak trees at the boundary of Richmond Park, her torch beam cutting through the November darkness. The beam caught the ancient standing stones first—gnarled trunks twisted into shapes that resembled hunched shoulders, their bark weathered to near-black. She'd come to the Grove a dozen times before, but never alone. Never at night. The Heartstone Pendant hung warm against her chest beneath her jumper, its familiar weight suddenly more noticeable. She'd felt it pulse this afternoon, that faint throb of heat that meant a Hel portal lurked somewhere nearby. Rory needed to know where. Her trainers crunched on frosted grass as she stepped into the clearing. The wildflowers shouldn't have been blooming—not in November—but they carpeted the ground in impossible colours. Purples and golds caught her torchlight, their petals pristine despite the season. The air hung thick and warm, wrong for the time of year, and she breathed it in slowly. Nothing felt off yet. Not really. Rory switched off her torch to let her eyes adjust. The Grove didn't need artificial light once you'd spent time here. A faint luminescence emanated from the flowers themselves, painting everything in shades of silver and violet. She moved deeper into the clearing, boots leaving dark impressions in the grass. That's when she heard it. A sound like branches being moved, but careful—deliberate. Not wind. Wind didn't move with intention. She stopped walking. The sound stopped too. Rory turned slowly, her eyes narrowing as they swept across the tree line. The oaks loomed like sentries, their bare branches creating a lattice against the darker sky beyond. Nothing visible. Nothing moving. The pendant warmed slightly beneath her shirt, a reminder that something lay dormant here, something that shouldn't exist on Earth proper. The sound came again. Closer this time. A rustling that suggested something large moving through the underbrush, but when she pointed her torch and flicked it on, the beam illuminated only flowers and grass. No disturbed vegetation. No trail. She kept the torch on and continued forward, toward the centre of the clearing where the wildflowers grew thickest. The pendant pulsed again—distinct now, unmistakable heat that made her fingers flex. A laugh reached her ears. Not human. The sound had too many layers to it, as if multiple voices were speaking in perfect unison. It came from everywhere and nowhere, echoing off the standing stones and dissolving into the darkness above. Rory's jaw tightened. She'd encountered things in the Grove before, things that didn't operate under the same rules as the world outside. But she'd never been here at night, and she'd never been alone. "Show yourself," she called out, her voice steady despite the way her pulse had quickened. Silence answered her. The kind of silence that felt deliberate—a held breath before something terrible. Then, movement. To her left and right simultaneously. Multiple things, shifting at the periphery of her vision. When she turned to look directly, they stilled. The moment she looked away, she felt them move again. The sensation prickled at the back of her neck, that animal awareness of being watched from multiple angles. Rory turned in a slow circle, torch held high. The beam caught nothing. The grove remained empty of anything but flowers and stone. "I'm not leaving," she said, as much to convince herself as whoever—whatever—was listening. "I need to know where it is." The pendant burned now, hot enough that she yanked her jumper up to look at it. The crimson gemstone glowed brighter than she'd ever seen it, pulsing in steady rhythm with her heartbeat. Its light spread across her skin in ruby patterns, a beacon in the darkness. The temperature dropped so suddenly that her breath frosted. Rory spun, torch wheeling through the grove. The flowers had begun to wilt, their vibrant colours leaching away into greys and browns. The warmth that had been so comforting moments before evaporated, replaced by a cold that cut straight through her clothes and settled into her bones. Something stood at the edge of her torchlight. Just barely within the beam's reach. She caught only an impression—a shape that was too tall, too angular—before it moved away. Not fleeing. Simply stepping back into the darkness, leaving no trace of its passage. The flowers continued to die. Spreading outward from where that shape had been, the withering advanced like a stain, leaving the Grove increasingly barren. The luminescence from the blooms was fading, taking what little light existed with it. Rory switched on her phone's flashlight as a backup, creating a second beam of illumination. The brightness seemed to make things worse. Now she could see movement more clearly—shifts in shadow that suggested forms, suggestions of limbs or wings or antlers or things she couldn't quite name because her brain rejected their shapes. They circled her. Multiple entities, pacing the clearing in a pattern that felt less like hunting and more like ritual. One of them made that sound again, that multi-layered laugh that caused something primal in her chest to recoil. The pendant had grown so hot now that she had to pull her jumper away from her skin. The gemstone blazed with inner light, and for a moment, the circling shadows seemed to contract, pulling back as if repelled. A voice spoke. This one singular, though it carried that strange harmonic undertone. Words that were almost English, almost comprehensible. "Not yet," it said. "The seal holds. But it thins. It thins and thins and—" Rory's phone buzzed suddenly. A text message. The light of the notification screen was blindingly bright in the darkness. She glanced down for just an instant—a message from Eva asking if she'd made it safe. In that moment of distraction, all the shadows rushed inward. She whirled, torch and phone both raised, but found nothing there. The shadows had already retreated back to the tree line. The withheld breath released. The deliberate silence dissolved into the normal sounds of night—wind through branches, the distant hum of London beyond the park. The Grove had settled back into its familiar state. The flowers had stopped dying, though they remained drained of colour. The warmth was returning, degree by degree. The pendant cooled against her skin, though it still glowed faintly. Rory's hands were shaking. She turned toward the edge of the clearing, toward the standing stones that marked the boundary, but something made her pause. The shadows hadn't vanished. They'd simply moved. They pressed against the perimeter of the Grove, thick and intent, as if something on the other side of that oak-lined boundary was trying very hard to remain unnoticed. Trying and failing.
created_at"2026-02-19T12:35:10.679Z" 2/19/2026, 12:35:10 PM
model"anthropic/claude-4.5-haiku-20251001"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency399
moderation_latency(null)
generation_time19504
tokens_prompt1038
tokens_completion1766
native_tokens_prompt1046
native_tokens_completion1543
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.008761
router(null)
provider_responses
0
endpoint_id"41d2915a-92e6-4993-b537-210b4e10cba8"
id"msg_01Hkw3KahxUcDbWULWEJ9bM7"
is_byokfalse
latency397
model_permaslug"anthropic/claude-4.5-haiku-20251001"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771504510-kGZ6gEz6vH70MbJpdy1b"
upstream_id"msg_01Hkw3KahxUcDbWULWEJ9bM7"
total_cost0.008761
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

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
64.25% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1119
totalAiIsmAdverbs8
found
0
adverb"suddenly"
count3
1
adverb"slowly"
count2
2
adverb"really"
count1
3
adverb"slightly"
count1
4
adverb"very"
count1
highlights
0"suddenly"
1"slowly"
2"really"
3"slightly"
4"very"
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)
6.17% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1119
totalAiIsms21
found
0
word"familiar"
count2
1
word"weight"
count1
2
word"pulse"
count2
3
word"throb"
count1
4
word"pristine"
count1
5
word"loomed"
count1
6
word"reminder"
count1
7
word"flicked"
count1
8
word"pulsed"
count1
9
word"perfect"
count1
10
word"echoing"
count1
11
word"quickened"
count1
12
word"silence"
count3
13
word"beacon"
count1
14
word"warmth"
count2
15
word"comforting"
count1
highlights
0"familiar"
1"weight"
2"pulse"
3"throb"
4"pristine"
5"loomed"
6"reminder"
7"flicked"
8"pulsed"
9"perfect"
10"echoing"
11"quickened"
12"silence"
13"beacon"
14"warmth"
15"comforting"
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
narrationSentences101
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount2
narrationSentences101
filterMatches(empty)
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences103
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen32
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1104
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
totalMentions27
wordCount1079
uniqueNames13
maxNameDensity0.83
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Rory"
discoveredNames
Richmond1
Park1
November2
Grove6
Heartstone1
Pendant1
Hel1
Earth1
Silence1
English1
Rory9
Eva1
London1
persons
0"Pendant"
1"Silence"
2"Rory"
3"Eva"
places
0"Richmond"
1"Park"
2"November"
3"London"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences68
glossingSentenceCount1
matches
0"quite name because her brain rejected their shapes"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1104
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences103
matches
0"made that sound"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs35
mean31.54
std17.42
cv0.552
sampleLengths
056
141
257
36
450
520
67
754
839
931
105
1136
1234
1315
1415
1553
1623
1720
1847
199
2047
2143
2238
2353
2439
2539
2620
2715
2835
2910
3045
3138
324
3357
343
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences101
matches
0"being moved"
51.85% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs180
matches
0"were speaking"
1"was listening"
2"was returning"
3"were shaking"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount13
semicolonCount0
flaggedSentences10
totalSentences103
ratio0.097
matches
0"The beam caught the ancient standing stones first—gnarled trunks twisted into shapes that resembled hunched shoulders, their bark weathered to near-black."
1"The wildflowers shouldn't have been blooming—not in November—but they carpeted the ground in impossible colours."
2"A sound like branches being moved, but careful—deliberate."
3"The pendant pulsed again—distinct now, unmistakable heat that made her fingers flex."
4"The kind of silence that felt deliberate—a held breath before something terrible."
5"\"I'm not leaving,\" she said, as much to convince herself as whoever—whatever—was listening."
6"She caught only an impression—a shape that was too tall, too angular—before it moved away."
7"Now she could see movement more clearly—shifts in shadow that suggested forms, suggestions of limbs or wings or antlers or things she couldn't quite name because her brain rejected their shapes."
8"She glanced down for just an instant—a message from Eva asking if she'd made it safe."
9"The deliberate silence dissolved into the normal sounds of night—wind through branches, the distant hum of London beyond the park."
87.81% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1094
adjectiveStacks0
stackExamples(empty)
adverbCount59
adverbRatio0.05393053016453382
lyAdverbCount18
lyAdverbRatio0.016453382084095063
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences103
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences103
mean10.72
std6.79
cv0.633
sampleLengths
020
121
212
33
417
519
65
712
815
912
1018
114
122
1310
1411
1516
1613
175
188
192
205
213
224
2313
2416
252
262
2721
284
293
3027
313
322
3319
3412
355
362
3717
3817
393
4019
4112
4215
433
4412
452
466
479
488
4910
41.10% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats16
diversityRatio0.33980582524271846
totalSentences103
uniqueOpeners35
72.46% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences92
matches
0"Just barely within the beam's"
1"Simply stepping back into the"
ratio0.022
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount18
totalSentences92
matches
0"She'd come to the Grove"
1"She'd felt it pulse this"
2"Her trainers crunched on frosted"
3"She moved deeper into the"
4"She stopped walking."
5"She kept the torch on"
6"It came from everywhere and"
7"She'd encountered things in the"
8"she called out, her voice"
9"she said, as much to"
10"Its light spread across her"
11"She caught only an impression—a"
12"They circled her."
13"She glanced down for just"
14"She whirled, torch and phone"
15"She turned toward the edge"
16"They'd simply moved."
17"They pressed against the perimeter"
ratio0.196
41.52% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount77
totalSentences92
matches
0"Aurora pushed through the oak"
1"The beam caught the ancient"
2"She'd come to the Grove"
3"The Heartstone Pendant hung warm"
4"She'd felt it pulse this"
5"Rory needed to know where."
6"Her trainers crunched on frosted"
7"The wildflowers shouldn't have been"
8"Purples and golds caught her"
9"The air hung thick and"
10"Nothing felt off yet."
11"Rory switched off her torch"
12"The Grove didn't need artificial"
13"A faint luminescence emanated from"
14"She moved deeper into the"
15"That's when she heard it."
16"A sound like branches being"
17"Wind didn't move with intention."
18"She stopped walking."
19"The sound stopped too."
ratio0.837
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences92
matches
0"To her left and right"
1"Now she could see movement"
ratio0.022
35.04% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences53
technicalSentenceCount8
matches
0"The beam caught the ancient standing stones first—gnarled trunks twisted into shapes that resembled hunched shoulders, their bark weathered to near-black."
1"She'd felt it pulse this afternoon, that faint throb of heat that meant a Hel portal lurked somewhere nearby."
2"The pendant warmed slightly beneath her shirt, a reminder that something lay dormant here, something that shouldn't exist on Earth proper."
3"The pendant pulsed again—distinct now, unmistakable heat that made her fingers flex."
4"The sound had too many layers to it, as if multiple voices were speaking in perfect unison."
5"She'd encountered things in the Grove before, things that didn't operate under the same rules as the world outside."
6"The warmth that had been so comforting moments before evaporated, replaced by a cold that cut straight through her clothes and settled into her bones."
7"They pressed against the perimeter of the Grove, thick and intent, as if something on the other side of that oak-lined boundary was trying very hard to remain u…"
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags3
uselessAdditionCount1
matches
0"she called out, her voice steady despite the way her pulse had quickened"
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags3
fancyCount1
fancyTags
0"she called out (call out)"
dialogueSentences5
tagDensity0.6
leniency1
rawRatio0.333
effectiveRatio0.333
76.6736%