Run: 2026-06-01-01KT1GFXS6VAVGR0VJJTWVV0BY

Run Details

Duration:
43.3s
Cost:
$0.060700
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
The text on her phone had been four words: Come to the grove. No name. No number she recognised. But the Heartstone had grown warm against her sternum the moment she'd read it, and Rory had learned to trust the pendant more than she trusted most people. So she'd taken the last train to Richmond, climbed the fence where the park gates had long since locked for the night, and walked until the manicured paths gave way to bracken and the kind of dark that swallowed torchlight whole. The standing stones found her before she found them. Ancient oaks, gnarled into shapes that shouldn't hold, marking a boundary she couldn't see but could feel — a pressure behind her teeth, like the air before a storm. She stepped between them. The grove opened up. Wildflowers blanketed the clearing, pale and luminous, swaying though there was no wind. Foxgloves in November. Bluebells beside late roses. They had no business blooming together, and yet here they were, every season crammed into one impossible meadow. Moonlight pooled in the centre, too bright, too white, as if the moon hung closer here than it did in London. "Hello?" Her voice came out smaller than she wanted. "You texted me. I came. So show yourself." Nothing answered. The Heartstone pulsed once, a slow throb of warmth, then went still. Rory pulled her jacket tighter and stepped further in. Grass brushed her shins. Somewhere off to her left, water trickled over stone — a brook she couldn't see. She turned toward the sound, and the trickling stopped. Just like that. As though someone had clamped a hand over its mouth. She stood very still. The silence that followed wasn't empty. It had texture, weight, the held-breath quality of a room where someone waited just behind a door. "Eva?" She tried the name though she knew Eva wouldn't be here, wouldn't know how to get here. "If this is some kind of joke—" A flower closed. She caught it at the edge of her vision — a foxglove folding its petals tight, the way they did at dusk, except all the others stayed open. Then the one beside it closed. Then another. A ripple moving through the meadow, blossoms snapping shut in a line that curved around the clearing's edge, encircling her, a slow tightening noose of darkness as the luminous petals winked out one by one. "Okay." She backed toward the centre, toward the light. "Okay. Not funny." The moon brightened. It shouldn't have, but it did, the white glare swelling until her shadow stretched black and thin across the grass and pointed, like an arrow, toward the treeline. She didn't want to follow it. Every animal instinct she owned told her not to. But her shadow had three companions now where she had cast one, three long shapes fanning out from her feet, and only one belonged to her. Rory spun. The grove stood empty. Flowers, stones, that aching impossible light. No one behind her. No one anywhere. When she looked down again, her shadow was alone, single, ordinary. Her heart slammed against the pendant. "I know you're there," she said, and hated how the words trembled. "I can—I can feel you watching." The trickling brook started up again. Closer now. To her right, where before it had been to her left. As if the whole clearing had quietly rotated while she'd had her back turned, and she was no longer facing the way she'd come in. She searched for the standing stones. The two oaks that marked the entrance. She found four. Then six. Gnarled silhouettes ringing the grove at intervals, more of them than there had been, their twisted limbs reaching inward like fingers cupping a held thing. She couldn't tell which gap she'd walked through. They all looked the same. They all looked wrong. A sound drifted across the meadow. Singing. Not words — a melody, wordless and high and sweet, a woman's voice humming a tune that tugged at something behind Rory's ribs. It came from the treeline her shadow had pointed to. It was beautiful. That was the worst part. It was so beautiful that her feet carried her two steps toward it before she caught herself, grass cold and wet now, soaking through her trainers, though a moment ago it had been dry. "No," she breathed. "No, I'm not—I'm not doing that." The singing stopped mid-note. The silence that replaced it pressed on her eardrums. She could hear her own pulse, the rasp of her breath, the tiny dry sound of flowers somewhere still folding shut. And under all of it, faint, patient — footsteps. Soft in the grass. Circling. Always at the periphery, always behind whatever stone or shadow she wasn't looking at, a presence that moved when she moved and stopped when she stopped, learning her, the way a cat learned a cornered bird before it bothered with the killing. The Heartstone flared hot. Not warm — hot, a brand against her skin, and she clutched it through her shirt and gasped. The crimson glow leaked between her fingers, brighter than she'd ever seen it, throwing red light across the meadow. And in that red light, just for a heartbeat, the empty grove was not empty at all. Shapes. Tall, thin, too many joints, standing motionless among the closed flowers. A dozen of them. More. All facing her. All so still that her eye had read them as more standing stones, more crooked oaks, until the pendant's glow caught the wet shine of eyes set in faces that were almost, almost human. She blinked, and they were gone. Stones again. Trees again. Innocent dark. But she'd seen. And whatever stood out there in the meadow with her — it knew she'd seen. The footsteps quickened. From every direction now, soft and overlapping, no longer one set but many, closing the circle the flowers had drawn, and the moonlight guttered like a candle in a draught, and the brook ran backwards up its own bed with a sound like a held breath finally, terribly, releasing. Rory turned in a slow circle, the pendant burning in her fist, her back to nothing because there was nothing left to put her back to. "What do you want?" she whispered. The grass stopped moving. Every flower, every blade, went still at once. And in the absolute quiet that followed, close enough to stir the hair at her ear, a voice that was not a voice answered her. *You came when we called.*
created_at"2026-06-01T11:53:17.867Z" 6/1/2026, 11:53:17 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5732
moderation_latency(null)
generation_time43296
tokens_prompt1038
tokens_completion1680
native_tokens_prompt1480
native_tokens_completion2132
native_tokens_completion_images(null)
native_tokens_reasoning51
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"end_turn"
service_tier"default"
usage0.0607
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_012mxMuaQLh9WmjF5AnSiJgG"
is_byokfalse
latency5040
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780314797-CRJZaSOX4VS5buEbaoT6"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780314797-fsyBN44EkNqDWusQN2JF"
upstream_id"msg_012mxMuaQLh9WmjF5AnSiJgG"
total_cost0.0607
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags6
adverbTagCount0
adverbTags(empty)
dialogueSentences11
tagDensity0.545
leniency1
rawRatio0
effectiveRatio0
95.40% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1086
totalAiIsmAdverbs1
found
0
adverb"very"
count1
highlights
0"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)
44.75% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1086
totalAiIsms12
found
0
word"could feel"
count1
1
word"pulsed"
count1
2
word"throb"
count1
3
word"warmth"
count1
4
word"silence"
count2
5
word"weight"
count1
6
word"trembled"
count1
7
word"pulse"
count1
8
word"footsteps"
count2
9
word"quickened"
count1
highlights
0"could feel"
1"pulsed"
2"throb"
3"warmth"
4"silence"
5"weight"
6"trembled"
7"pulse"
8"footsteps"
9"quickened"
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
narrationSentences97
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences97
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences102
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen49
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans1
markdownWords5
totalWords1091
ratio0.005
matches
0"You came when we called."
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
totalMentions13
wordCount1049
uniqueNames7
maxNameDensity0.48
worstName"Rory"
maxWindowNameDensity1
worstWindowName"Heartstone"
discoveredNames
Come1
Heartstone3
Rory5
Richmond1
November1
London1
Eva1
persons
0"Come"
1"Heartstone"
2"Rory"
3"Eva"
places
0"Richmond"
1"November"
2"London"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences55
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.917
wordCount1091
matches
0"no longer one set but"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences102
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs44
mean24.8
std22.05
cv0.889
sampleLengths
013
134
241
342
44
559
617
72
812
937
1013
1127
1225
133
1471
1512
163
1728
1841
192
2028
216
2218
2344
2413
2547
266
271
2875
299
304
3186
324
3354
3454
3512
3618
373
3849
3926
406
414
4233
435
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences97
matches
0"were gone"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs186
matches
0"wasn't looking"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount7
semicolonCount0
flaggedSentences7
totalSentences102
ratio0.069
matches
0"Ancient oaks, gnarled into shapes that shouldn't hold, marking a boundary she couldn't see but could feel — a pressure behind her teeth, like the air before a storm."
1"Somewhere off to her left, water trickled over stone — a brook she couldn't see."
2"She caught it at the edge of her vision — a foxglove folding its petals tight, the way they did at dusk, except all the others stayed open."
3"Not words — a melody, wordless and high and sweet, a woman's voice humming a tune that tugged at something behind Rory's ribs."
4"And under all of it, faint, patient — footsteps."
5"Not warm — hot, a brand against her skin, and she clutched it through her shirt and gasped."
6"And whatever stood out there in the meadow with her — it knew she'd seen."
94.77% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1044
adjectiveStacks0
stackExamples(empty)
adverbCount48
adverbRatio0.04597701149425287
lyAdverbCount4
lyAdverbRatio0.0038314176245210726
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences102
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences102
mean10.7
std10.34
cv0.967
sampleLengths
013
12
24
328
441
59
629
74
84
913
103
114
1218
1321
149
158
162
1712
189
194
2015
219
223
2310
244
256
2617
2718
287
293
3028
316
322
3335
349
353
363
3728
386
399
4026
412
424
436
444
453
4611
476
4812
496
70.26% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats10
diversityRatio0.4803921568627451
totalSentences102
uniqueOpeners49
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount5
totalSentences82
matches
0"Somewhere off to her left,"
1"Just like that."
2"Then the one beside it"
3"Always at the periphery, always"
4"All facing her."
ratio0.061
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount24
totalSentences82
matches
0"She stepped between them."
1"They had no business blooming"
2"Her voice came out smaller"
3"She turned toward the sound,"
4"She stood very still."
5"It had texture, weight, the"
6"She tried the name though"
7"She caught it at the"
8"She backed toward the centre,"
9"It shouldn't have, but it"
10"She didn't want to follow"
11"Her heart slammed against the"
12"she said, and hated how"
13"She searched for the standing"
14"She found four."
15"She couldn't tell which gap"
16"They all looked the same."
17"They all looked wrong."
18"It came from the treeline"
19"It was beautiful."
ratio0.293
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount53
totalSentences82
matches
0"The text on her phone"
1"The standing stones found her"
2"She stepped between them."
3"The grove opened up."
4"Wildflowers blanketed the clearing, pale"
5"Foxgloves in November."
6"Bluebells beside late roses."
7"They had no business blooming"
8"Moonlight pooled in the centre,"
9"Her voice came out smaller"
10"The Heartstone pulsed once, a"
11"Rory pulled her jacket tighter"
12"Grass brushed her shins."
13"She turned toward the sound,"
14"She stood very still."
15"The silence that followed wasn't"
16"It had texture, weight, the"
17"She tried the name though"
18"A flower closed."
19"She caught it at the"
ratio0.646
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount3
totalSentences82
matches
0"As though someone had clamped"
1"To her right, where before"
2"As if the whole clearing"
ratio0.037
0.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences33
technicalSentenceCount8
matches
0"So she'd taken the last train to Richmond, climbed the fence where the park gates had long since locked for the night, and walked until the manicured paths gave…"
1"Ancient oaks, gnarled into shapes that shouldn't hold, marking a boundary she couldn't see but could feel — a pressure behind her teeth, like the air before a s…"
2"Moonlight pooled in the centre, too bright, too white, as if the moon hung closer here than it did in London."
3"As though someone had clamped a hand over its mouth."
4"A ripple moving through the meadow, blossoms snapping shut in a line that curved around the clearing's edge, encircling her, a slow tightening noose of darkness…"
5"Not words — a melody, wordless and high and sweet, a woman's voice humming a tune that tugged at something behind Rory's ribs."
6"Always at the periphery, always behind whatever stone or shadow she wasn't looking at, a presence that moved when she moved and stopped when she stopped, learni…"
7"All so still that her eye had read them as more standing stones, more crooked oaks, until the pendant's glow caught the wet shine of eyes set in faces that were…"
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
totalTags3
fancyCount2
fancyTags
0"she breathed (breathe)"
1"she whispered (whisper)"
dialogueSentences11
tagDensity0.273
leniency0.545
rawRatio0.667
effectiveRatio0.364
86.8393%