Run: 2026-02-17-01KHMMCM5ATRF85JE54BQGEY8M

Run Details

Duration:
10.2s
Cost:
$0.002116
Provider:
Anthropic

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 Fae Grove was eerily silent as Aurora stepped through the boundary. The ancient standing stones loomed around her, their rough surfaces bathed in a pale, otherworldly light. A chill ran down her spine, and she clutched the Heartstone pendant hanging from her neck, its faint warmth a comfort against the chill of the night air. She shouldn't be here, not after dark. Rory knew the risks, had been warned time and again about the dangers that lurked in this liminal space between worlds. But she couldn't resist the pull, the desperate need to find answers. Her fingers traced the raised scar on her wrist, a phantom ache pulsing in time with the pendant's faint glow. Shadows danced at the edge of her vision, just beyond the reach of the standing stones. Rory whirled, heart pounding, but the grove remained still and silent, save for the distant hoot of an owl. She took a steadying breath, reminding herself that her mind was playing tricks. There was nothing here but the wind rustling the leaves and the soft crunch of her footsteps on the mossy ground. Yet the wrongness persisted, a growing sense of unease that prickled along her skin. Rory glanced around warily, eyes straining to pierce the gathering darkness. The flowers that normally carpeted the forest floor had withered, their petals curled and brown. A shiver ran through her, and she couldn't shake the feeling of being watched. Steeling her nerves, Rory pressed on, her steps quick and light as she made her way deeper into the grove. The standing stones cast long, jagged shadows that seemed to shift and twist, as if alive. Rory froze, heart thundering in her ears, but the shadows remained still once more. She let out a shaky breath, berating herself for her overactive imagination. A twig snapped somewhere to her left, and Rory whirled, hands raised defensively. Nothing. She strained to listen, but the only sound was the distant hoot of the owl, growing fainter with each passing moment. Rory's fingers tightened around the pendant, its warmth a steadying presence. As she moved forward, the air grew thick and heavy, making it difficult to breathe. Rory's footsteps slowed, and she found herself glancing over her shoulder with increasing frequency, her unease mounting with every passing second. The grove should have been familiar, but in the darkness, the trees seemed to twist and distort, their branches like grasping claws. Rory swallowed hard, fighting the urge to turn and run. She had to keep going, had to find the answers she sought. A soft rustling reached her ears, and Rory froze, eyes scanning the darkness. There, just beyond the reach of the standing stones, a shadow seemed to detach itself from the trees, moving with a sinuous grace that sent a shiver down her spine. Rory's heart pounded as she watched it, mesmerized by its fluid movements. The shadow drew closer, and Rory caught a glimpse of something that might have been a face, but it was too indistinct to make out. She held her breath, every muscle tensed, ready to flee. The shadow paused, and Rory could feel its gaze upon her, piercing and cold. A twig snapped behind her, and Rory whirled, a strangled cry catching in her throat. Nothing. She spun back towards the moving shadow, but it had vanished, leaving only the inky darkness in its wake. Rory's hands shook as she fumbled for her phone, the screen's glow casting a sickly light over the grove. The flowers lay wilted and dead, and the standing stones loomed overhead, their shadows seeming to creep ever closer. A soft, chittering sound reached her ears, and Rory froze, her eyes scanning the darkness. There, at the edge of the light, something moved, darting between the trees with a speed that defied the eye. Rory's breath caught in her throat, and she fought the urge to scream. She should leave, she knew that. This place was dangerous, filled with unseen horrors that lurked in the shadows. But she couldn't bring herself to turn away, not when she was so close to finding the answers she sought. Steeling her nerves, Rory pressed on, her steps quickening as she navigated the twisted, gnarled roots that snaked across the forest floor. The Heartstone pendant pulsed with a faint warmth, and she clutched it tightly, drawing strength from its presence. The grove seemed to close in around her, the trees growing thicker and more twisted with every step. Rory could feel the weight of unseen eyes upon her, and she fought the urge to look over her shoulder, to see what lurked in the shadows. A soft, whispering sound reached her ears, and Rory froze, her heart pounding. It seemed to come from everywhere and nowhere, a haunting melody that sent shivers down her spine. She strained to listen, but the whispers faded, replaced by the eerie silence that permeated the grove. Rory pressed on, her steps growing more uncertain with each passing moment. The grove seemed to stretch on endlessly, the familiar landmarks lost in the gloom. She could feel the panic rising within her, a tightness in her chest that threatened to overwhelm her. A sudden movement caught her eye, and Rory whirled, her breath catching in her throat. Something dark and inhuman flickered between the trees, its form indistinct and unsettling. Rory's fingers tightened around the pendant, the warmth of the gemstone a steadying presence. She should turn back, her rational mind screamed. This place was dangerous, filled with horrors that she couldn't even begin to comprehend. But something drove her forward, a desperate need to uncover the truth, to find the answers that had eluded her for so long. The grove grew darker, the shadows deepening until Rory could barely make out the twisted shapes of the trees around her. She moved forward, her steps slow and cautious, her senses on high alert. The whispers had returned, a haunting melody that seemed to echo all around her. Rory froze, her heart pounding, as a sudden chill swept through the grove. The air grew thick and heavy, making it difficult to breathe. She could feel the weight of unseen eyes upon her, and the primal part of her brain screamed to run, to escape this place of darkness and terror. But still, she pressed on, driven by a desperate need to uncover the truth, no matter the cost.
created_at"2026-02-17T01:45:52.240622+00:00" 2/17/2026, 1:45:52 AM
model"anthropic/claude-3-haiku"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency564
moderation_latency(null)
generation_time9976
tokens_prompt812
tokens_completion1604
native_tokens_prompt838
native_tokens_completion1525
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"
usage0.00211575
router(null)
provider_responses
0
id"msg_013ibr4spkraxZYX7x4ChTtk"
status200
is_byokfalse
latency556
endpoint_id"8661a1db-b0cf-4eb2-ba04-c2a79f698682"
provider_name"Anthropic"
model_permaslug"anthropic/claude-3-haiku"
api_type"completions"
id"gen-1771292741-XlR78bBkioQOIILoRfs6"
upstream_id"msg_013ibr4spkraxZYX7x4ChTtk"
total_cost0.00211575
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags0
adverbTagCount0
adverbTags(empty)
81.3433% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1072
totalAiIsmAdverbs2
found
0
adverb"tightly"
count1
1
adverb"warily"
count1
highlights
0"tightly"
1"warily"
100.0000% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found(empty)
100.0000% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
6.7164% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1072
totalAiIsms10
found
0
word"flickered"
count1
1
word"otherworldly"
count1
2
word"loomed"
count2
3
word"weight"
count2
4
word"footsteps"
count2
5
word"echo"
count1
6
word"navigated"
count1
highlights
0"flickered"
1"otherworldly"
2"loomed"
3"weight"
4"footsteps"
5"echo"
6"navigated"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"sent a shiver through"
count1
highlights
0"sent a shiver down"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences68
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount0
hedgeCount8
narrationSentences68
filterMatches(empty)
hedgeMatches
0"seemed to"
1"begin to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences68
matches(empty)
20.4299% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs23
mean46.61
std10.32
cv0.222
sampleLengths
056
160
269
354
462
546
636
744
855
949
1035
1138
1248
1339
1440
1545
1647
1744
1842
1945
2048
2152
2218
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount1
totalSentences68
matches
0"been warned"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount1
totalVerbs198
matches
0"was playing"
100.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1072
adjectiveStacks0
stackExamples(empty)
adverbCount35
adverbRatio0.03264925373134328
lyAdverbCount11
lyAdverbRatio0.010261194029850746
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences68
echoCount0
echoWords(empty)
81.0783% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences68
mean15.76
std5.56
cv0.353
sampleLengths
012
116
228
37
421
512
620
716
819
913
1021
1114
1211
1315
1414
1520
1616
1714
1812
1913
201
2121
2211
2315
2421
2522
2610
2712
2813
2930
3012
3125
3210
3314
3415
351
3619
3719
3819
3915
4020
4113
426
4313
4420
4522
4618
4718
4827
4913
47.0588% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats2
diversityRatio0.22058823529411764
totalSentences68
uniqueOpeners15
100.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags0
fancyCount0
fancyTags(empty)
84.5075%