Run: 2026-02-19-01KHTY3141DXV8N525Y0JGXV30

Run Details

Duration:
19.7s
Cost:
$0.008726
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 oak stones loomed against the London night, their silhouettes jagged and impossible. Aurora had memorised their shape from daylight visits, but darkness remade them into something unfamiliar. Each trunk seemed wider than she remembered, their bark rougher and more ancient. She pushed through the standing stones and into the clearing. The moment her feet crossed the boundary, the temperature dropped. Not the crisp October cold she'd felt outside Richmond Park, but something deeper—a cold that reached past her jacket and settled against her ribs. The wildflowers glowed faintly in the darkness, their petals luminescent with a pale violet light that cast everything in soft, distorting shadows. Aurora pulled the Heartstone pendant from beneath her shirt. It hung heavy against her collarbone, the crimson gem warm to the touch. She'd come here because it pulsed near the Hel portal—a signal stronger than any compass. Whatever was moving in the in-between spaces needed stopping, and the pendant had shown her the threshold. She wasn't supposed to be here at night. The thought arrived without context, a certainty that planted itself in her chest. Nothing had told her this. No warning sign, no voice. But the Grove felt different after dark, the way a familiar room became a maze when the lights went out. The wildflowers seemed closer together, their glow creating pockets of deep shadow between the blooms. A sound drifted across the clearing. Soft. Almost musical. Aurora's jaw tightened. She'd heard nothing like that on her previous visits. The Grove had been quiet then—the kind of quiet that suggested held breath, but peaceful nonetheless. This was different. The sound had texture to it, something almost like wind chimes but without the clarity. The notes arrived distorted, as though filtered through water. She moved deeper into the clearing, her trainers silent on the soft ground. The earth felt wrong beneath her feet—too springy, almost yielding, like stepping on skin rather than soil. She pulled her jacket closer and forced her breathing steady. The chime-sound came again, closer this time. Aurora spun toward it, but the clearing offered nothing. The wildflowers shifted in the darkness, their glow pulsing in rhythm with her heartbeat. That wasn't normal. She'd watched them bloom and fade before, but never in synchronisation with anything external. She stood motionless, testing whether they'd sync with her breath instead. They didn't. The pendant warmed against her chest, but it didn't pulse the way it did near the portal. Instead it radiated a steady heat, almost feverish. She placed her hand over it, feeling her own pulse beneath her palm. Steady. Controlled. Good. Something moved at the edge of her vision. Aurora whipped her head toward it, but the wildflowers only swayed. No shape resolved itself. No figure emerged from the shadows. The movement had been subtle—the kind of thing peripheral vision caught but direct sight missed. She waited, shoulders tense, watching for it to happen again. The chime-sound echoed from the opposite direction. She didn't turn this time. Instead, she narrowed her focus and let the movement come into the corner of her vision again. Something large. Something that moved with too many joints, angles that bent in ways that suggested flexibility beyond what shoulders and hips could manage. It circled at the far edge of the clearing, keeping pace with the boundary stones. Aurora counted her breaths. Ten. Twenty. The thing continued its circuit. The wildflowers began to dim. She noticed it in increments—the luminescence fading degree by degree, like someone slowly closing the aperture of a camera. The violet glow weakened until the clearing existed in near-total darkness, lit only by the faint inner glow of her pendant and whatever moonlight filtered through the trees above. But the trees. She looked up and found only blackness. The canopy had either grown denser or moved closer, and she couldn't determine which possibility troubled her more. The chime-sound stopped. In its absence, Aurora heard something worse. Breathing. Not her own—she held that carefully in check, measured and quiet. This came from the shadows near the boundary stones, wet and laboured, like lungs pulling at air through liquid. It moved from right to left along the perimeter, and she tracked it by sound alone, following the wet rasp with her eyes. She'd come here for this. To find the portal. To understand what moved through the spaces between worlds and pulled hungry things into London. But standing in the dark, listening to something breathe against the oak stones, the purpose felt hollow. Aurora drew the silver chain over her head and held the pendant before her like a lantern. The crimson stone caught what little light remained and threw it back in fractured patterns across the clearing. For a moment—just an instant—the light caught something. A shape at the boundary. Tall. Impossibly tall. With too many limbs arranged at angles that made her stomach twist. Then it was gone, folded back into shadow. The breathing continued, but slower now. Deliberate. As though whatever made that sound had just realised she could see fragments of it. The presence felt vast, pressing down from the darkness above. Not attacking. Observing. Studying. The Heartstone pulsed. Warmth radiated from the gem, sudden and intense. It didn't pulse once and fade—it continued in a rapid sequence, each throb stronger than the last. The crimson light intensified, casting the entire clearing in blood-red illumination. And in that light, something became clear. The wildflowers hadn't grown sparse. They were pressed against her, thousands of blooms surrounding her in a tight circle, their petals touching her jacket, her neck, her hair. She hadn't noticed them close in—couldn't remember the exact moment they'd shifted from scattered around the clearing to pressed against her skin. The petals felt wrong beneath her fingers, too soft, almost like touching the inside of something wet. The breathing stopped. The silence that followed was worse than any sound. Aurora's own breath seemed thunderously loud as she lifted the pendant higher, illuminating the wall of flowers surrounding her. They weren't flowers anymore, or at least not entirely. The petals showed internal structure when examined closely—something geometric beneath the organic curve, patterns that hurt to look at directly. A new sound emerged from beyond the flower-wall. Not chimes. Not breathing. Words. They came in fragments, multiple voices speaking over one another, each utterance in a language that predated any vocal human throat. The sounds bypassed her ears and resonated directly in her bones, in the space between her thoughts. She understood them anyway, not through translation but through direct knowledge that bloomed in her mind. Welcome. Return. Begin again. The Heartstone burned against her palm. Not painful—worse. It felt like coming home to a place she'd never been.
created_at"2026-02-19T12:30:39.75Z" 2/19/2026, 12:30:39 PM
model"anthropic/claude-4.5-haiku-20251001"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency370
moderation_latency(null)
generation_time19649
tokens_prompt1038
tokens_completion1828
native_tokens_prompt1046
native_tokens_completion1536
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"
usage0.008726
router(null)
provider_responses
0
endpoint_id"41d2915a-92e6-4993-b537-210b4e10cba8"
id"msg_01DGmvAUzMueHxw5yvcZaWew"
is_byokfalse
latency368
model_permaslug"anthropic/claude-4.5-haiku-20251001"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771504239-ARN6t2D5gbgxjXh9P52Q"
upstream_id"msg_01DGmvAUzMueHxw5yvcZaWew"
total_cost0.008726
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
totalTags0
91.24% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1141
totalAiIsmAdverbs2
found
0
adverb"slowly"
count1
1
adverb"carefully"
count1
highlights
0"slowly"
1"carefully"
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)
25.50% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1141
totalAiIsms17
found
0
word"loomed"
count1
1
word"pulsed"
count2
2
word"familiar"
count1
3
word"pulse"
count3
4
word"resolved"
count1
5
word"echoed"
count1
6
word"measured"
count1
7
word"fractured"
count1
8
word"stomach"
count1
9
word"warmth"
count1
10
word"throb"
count1
11
word"silence"
count1
12
word"structure"
count1
13
word"resonated"
count1
highlights
0"loomed"
1"pulsed"
2"familiar"
3"pulse"
4"resolved"
5"echoed"
6"measured"
7"fractured"
8"stomach"
9"warmth"
10"throb"
11"silence"
12"structure"
13"resonated"
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
narrationSentences116
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount1
narrationSentences116
filterMatches(empty)
hedgeMatches
0"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences116
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen30
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1121
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions1
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions20
wordCount1121
uniqueNames8
maxNameDensity0.8
worstName"Aurora"
maxWindowNameDensity1.5
worstWindowName"Aurora"
discoveredNames
London2
October1
Richmond1
Park1
Heartstone3
Hel1
Grove2
Aurora9
persons
0"Heartstone"
1"Grove"
2"Aurora"
places
0"London"
1"Richmond"
2"Park"
3"Hel"
globalScore1
windowScore1
16.67% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences75
glossingSentenceCount4
matches
0"seemed wider than she remembered, their bark rougher and more ancient"
1"seemed closer together, their glow creating pockets of deep shadow between the blooms"
2"seemed thunderously loud as she lifted the pendant higher, illuminating the wall of flowers surrounding her"
3"felt like coming home to a place she'd"
21.59% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.784
wordCount1121
matches
0"Not the crisp October cold she'd felt outside Richmond Park, but something deeper"
1"not through translation but through direct knowledge"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences116
matches
0"made that sound"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs36
mean31.14
std23.9
cv0.768
sampleLengths
041
110
256
354
48
558
69
755
840
97
1051
112
1241
138
1446
157
1661
1711
185
1976
203
2161
2241
2363
248
2536
263
2736
287
2967
303
3157
3213
3354
344
3519
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences116
matches
0"was gone"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs174
matches
0"was moving"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount13
semicolonCount0
flaggedSentences12
totalSentences116
ratio0.103
matches
0"Not the crisp October cold she'd felt outside Richmond Park, but something deeper—a cold that reached past her jacket and settled against her ribs."
1"She'd come here because it pulsed near the Hel portal—a signal stronger than any compass."
2"The Grove had been quiet then—the kind of quiet that suggested held breath, but peaceful nonetheless."
3"The earth felt wrong beneath her feet—too springy, almost yielding, like stepping on skin rather than soil."
4"The movement had been subtle—the kind of thing peripheral vision caught but direct sight missed."
5"She noticed it in increments—the luminescence fading degree by degree, like someone slowly closing the aperture of a camera."
6"Not her own—she held that carefully in check, measured and quiet."
7"For a moment—just an instant—the light caught something."
8"It didn't pulse once and fade—it continued in a rapid sequence, each throb stronger than the last."
9"She hadn't noticed them close in—couldn't remember the exact moment they'd shifted from scattered around the clearing to pressed against her skin."
10"The petals showed internal structure when examined closely—something geometric beneath the organic curve, patterns that hurt to look at directly."
11"Not painful—worse."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1141
adjectiveStacks0
stackExamples(empty)
adverbCount45
adverbRatio0.03943908851884312
lyAdverbCount12
lyAdverbRatio0.010517090271691499
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences116
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences116
mean9.66
std6.77
cv0.701
sampleLengths
013
115
213
310
410
524
622
79
813
915
1017
118
1213
135
145
1520
1615
176
181
192
203
219
2216
233
2415
259
2613
2717
2810
297
309
3114
323
3314
3411
352
3617
378
3813
391
401
411
428
4311
444
456
4615
4710
487
495
50.29% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats10
diversityRatio0.35344827586206895
totalSentences116
uniqueOpeners41
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences93
matches
0"Instead it radiated a steady"
1"Instead, she narrowed her focus"
2"Then it was gone, folded"
ratio0.032
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount24
totalSentences93
matches
0"She pushed through the standing"
1"It hung heavy against her"
2"She'd come here because it"
3"She wasn't supposed to be"
4"She'd heard nothing like that"
5"She moved deeper into the"
6"She pulled her jacket closer"
7"She'd watched them bloom and"
8"She stood motionless, testing whether"
9"She placed her hand over"
10"She waited, shoulders tense, watching"
11"She didn't turn this time."
12"It circled at the far"
13"She noticed it in increments—the"
14"She looked up and found"
15"It moved from right to"
16"She'd come here for this."
17"It didn't pulse once and"
18"They were pressed against her,"
19"She hadn't noticed them close"
ratio0.258
56.77% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount75
totalSentences93
matches
0"The oak stones loomed against"
1"Aurora had memorised their shape"
2"Each trunk seemed wider than"
3"She pushed through the standing"
4"The moment her feet crossed"
5"The wildflowers glowed faintly in"
6"Aurora pulled the Heartstone pendant"
7"It hung heavy against her"
8"She'd come here because it"
9"Whatever was moving in the"
10"She wasn't supposed to be"
11"The thought arrived without context,"
12"Nothing had told her this."
13"The wildflowers seemed closer together,"
14"A sound drifted across the"
15"Aurora's jaw tightened."
16"She'd heard nothing like that"
17"The Grove had been quiet"
18"This was different."
19"The sound had texture to"
ratio0.806
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount3
totalSentences93
matches
0"To find the portal."
1"To understand what moved through"
2"As though whatever made that"
ratio0.032
63.49% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences54
technicalSentenceCount6
matches
0"Not the crisp October cold she'd felt outside Richmond Park, but something deeper—a cold that reached past her jacket and settled against her ribs."
1"The thought arrived without context, a certainty that planted itself in her chest."
2"Something that moved with too many joints, angles that bent in ways that suggested flexibility beyond what shoulders and hips could manage."
3"They were pressed against her, thousands of blooms surrounding her in a tight circle, their petals touching her jacket, her neck, her hair."
4"The petals showed internal structure when examined closely—something geometric beneath the organic curve, patterns that hurt to look at directly."
5"She understood them anyway, not through translation but through direct knowledge that bloomed in her mind."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags0
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags0
84.1849%