Run: 2026-02-17-01KHMMDXFE8695TBF6QCY0HBGS

Run Details

Duration:
49.5s
Cost:
$0.041289
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 uneven ground of Richmond Park caught at Rory's ankles as she trudged through the darkness. Her torch beam bobbed ahead of her, picking out tree trunks and undergrowth in a thin corridor of light. The rest of the world had contracted to varying shades of black, the clouds overhead smothering any hope of moonlight. "This is ridiculous," she muttered, checking her phone again. No signal, just as there hadn't been the last four times she'd checked. The screen's blue glow illuminated her face in the darkness, the time reading 11:42 PM. Late enough that the park was officially closed, late enough that she shouldn't be here at all. But the text had been clear: *Come to the standing stones tonight. Answers about your pendant. Come alone.* The Heartstone pendant hung heavy around her neck, a comforting weight beneath her jacket. Rory touched it through her clothing, feeling its warmth even through the fabric. She'd worn it every day since it had appeared in her mailbox three weeks ago, drawn to it in a way she couldn't explain. The deep crimson stone seemed to have its own pulse sometimes, especially in moments like this when she felt unsettled. Like now. The wind sighed through the trees, bringing with it the scent of earth and something else—something sweeter, like flowers in bloom, which made no sense in November. Rory paused, listening. The night sounds of the park surrounded her: the rustle of leaves, the distant call of a fox, the— She frowned. What was that? A high, thin sound just at the edge of hearing. Like glass being rubbed with a wet finger. She shook her head and pressed on, following the crude map she'd been sent alongside the text. The standing stones were supposed to be somewhere in this section of the park—a circle of ancient oaks that most visitors walked right past without noticing. Rory had lived in London for nearly a year now and had visited Richmond Park several times but had never seen them. Her torch beam caught something pale ahead—a flash of white among the trees. Rory quickened her pace, pushing through a screen of bushes, and then stopped abruptly. She had found the grove. The standing stones weren't stones at all, but massive, ancient oaks arranged in a perfect circle. Their pale trunks gleamed faintly in the darkness, as if they had absorbed moonlight during brighter nights and now released it slowly. The ground inside the circle was curiously flat and covered with small flowers that should have been impossible in the chill November air. Rory stepped forward hesitantly. As she crossed the threshold between the trees, the air seemed to thicken around her. The sounds of the park—the distant traffic, the night birds—muffled instantly, as if someone had closed a heavy door behind her. "Hello?" Her voice fell flat, absorbed by the silence of the grove. "Is anyone here?" Nothing but the gentle sway of the flowers at her feet, moving in a breeze she couldn't feel against her skin. Rory moved toward the center of the circle, turning slowly, taking in the strangeness of the place. Her torch beam seemed dimmer here, struggling to push back the shadows that pooled between the trees. The Heartstone against her chest pulsed once, hard enough that she gasped. She pulled it out from beneath her jacket, staring at it. The deep crimson stone gleamed with an inner light, warmer and more insistent than she'd ever felt it before. "Beautiful, isn't it?" Rory whirled around. There was no one there. "Hello?" she called again, voice sharper now. "Who's there?" Something moved at the corner of her vision—a flicker of darkness against darkness. Rory spun toward it, torch beam cutting through the night, but caught nothing but tree trunks and flowers. "I know someone's there," she said, trying to keep her voice steady. "You asked me to come, so here I am." The high, thin sound came again, closer now—not quite music, not quite laughter. Goosebumps rose along Rory's arms. "You've been wearing my gift," the voice said, seeming to come from everywhere and nowhere. "I'm pleased." "Your gift?" Rory clutched the pendant. "The Heartstone? You sent it to me?" A rustle of movement behind her. Rory turned, but again, there was nothing to see. The pendant pulsed against her palm, almost hot now. "Time moves differently here," the voice said, ignoring her question. "You should be careful about that. Minutes here can be hours there, or days. Easy to lose yourself." Rory's mouth went dry. She took a step back toward the circle of trees. "I think I should go." "But you've only just arrived," the voice said, closer now, just behind her right shoulder. "And we have so much to discuss, Aurora Carter." She jerked away, spinning to face the voice, but again found nothing but empty air. Her torch flickered, the beam dimming momentarily before strengthening again. "How do you know my name?" she demanded. "What is this place?" "Names have power," the voice replied, now from across the grove. "And this place? This is a threshold. Neither fully in your world nor fully in mine. One of the few places where we can... converse." "We?" Rory swept her torch in an arc, trying to catch sight of whoever—or whatever—was speaking. "Who are you?" "A friend," the voice said. "Or I could be, if you're wise." The flowers at Rory's feet rippled in another unfelt breeze, and she noticed for the first time that they were all facing inward now, toward her, their tiny blooms like watching eyes. She took another step back. "The pendant," she said, trying to keep her voice steady. "You said you had answers about it." "It's a key," the voice said simply. "A beacon. A tether." "To what?" "To us." The flowers trembled more violently now, and Rory noticed with creeping horror that the ripple was moving toward her, as if something invisible was walking across the grove. The pendant burned against her skin. "I don't understand," she said, backing away more rapidly now, nearly to the edge of the circle. "The stone comes from a place called Dymas," the voice said, now directly in front of her, though she could see nothing there. "A realm adjacent to yours, as is the Fae realm where we now stand partly between. The stone calls to things from... elsewhere. Things that wish to cross over." Rory felt something brush against her cheek—the ghost of a touch, cold and alien. "Things like me," the voice whispered, now directly in her ear. Rory bolted, turning and running for the edge of the grove. The circle of oak trees suddenly seemed much farther away than before, the distance stretching impossibly. Behind her, she heard that sound again—that high, thin almost-laughter. "Running won't help you, Aurora," the voice called, amused. "You've been carrying the key with you for weeks now. The door is already opening." She reached the edge of the circle and pushed through, expecting to feel the resistance break, expecting to emerge back into the normal night sounds of Richmond Park. Instead, she found herself standing in the center of the grove again, the circle of trees still distant around her. The pendant pulsed against her skin in time with her racing heart. Rory clutched it, ready to rip it from her neck, when a thought stopped her cold. If it was a key, what would happen if she discarded it here, in this place? Would whatever door it had opened simply remain open? "Clever girl," the voice said, approvingly. "You see the problem." "What do you want from me?" Rory demanded, spinning in place, trying to locate the source of the voice. "For now? Nothing but your company," the voice replied. "And perhaps, in time, your cooperation. The barriers between worlds are weakening, Aurora Carter. Change is coming, whether your kind is ready or not." The air in the grove seemed to thicken further, becoming soupy and hard to breathe. The flowers at Rory's feet began to glow faintly, casting eerie blue-white light upward, illuminating— Nothing. There was still nothing visible speaking to her, but the space directly before her seemed darker somehow, a void in the shape of a person. "I can help you navigate what's coming," the voice said gently. "I can protect you, as I've been trying to do since you fled from that boy who hurt you. Evan, wasn't it?" Rory froze. "How do you know about that?" "I know many things about you, Aurora. I've been watching for someone like you for a very long time. Someone brave enough to wear the stone. Someone clever enough to understand what it means." The pendant gave a final, violent pulse, and then went cold against her skin. In the same moment, the high, thin sound peaked and then cut off abruptly. The silence that followed was absolute. "Time to go," the voice said, suddenly urgent. "They're coming." "Who's coming?" Rory asked, but even as she spoke, she felt something change in the grove. The flowers closed, the light faded, and the air pressure shifted dramatically. Her ears popped. "Remain silent about what happened here," the voice commanded, now distant and fading. "Wear the stone. I'll find you again soon." The darkness in front of Rory seemed to fold in on itself and vanish. In the same instant, the normal sounds of the night rushed back—distant traffic, the call of an owl, the rustle of the wind through mundane trees. Her torch beam strengthened, casting ordinary shadows. Rory stood frozen for a long moment, waiting for something else to happen. When nothing did, she moved cautiously toward the edge of the grove, half-expecting to find herself trapped again. But this time she passed between the ancient oaks without resistance, emerging into the normal darkness of Richmond Park. She turned and looked back at the grove. It seemed smaller somehow, more ordinary—just a circle of old trees with nothing remarkable about them. Yet her heart still raced, and the Heartstone pendant hung cold and inert against her skin, as if exhausted. Rory pulled out her phone with shaking hands. The screen lit up, showing the time: 1:34 AM. Almost two hours had passed, though it had felt like minutes. *Time moves differently here.* She hurried away from the grove, the pendant bouncing against her chest with each step. Whatever had happened in there—whatever had spoken to her—had known things it shouldn't have known. Had been watching her. And worst of all, it had claimed to be just one of many things trying to cross over. *The door is already opening.* Rory broke into a run, desperate to put as much distance as possible between herself and the grove. But even as she fled through the darkened park, she couldn't escape the certainty that whatever had spoken to her was still watching, still following—and that the Heartstone pendant against her skin was somehow allowing it to do so.
created_at"2026-02-17T01:47:14.212133+00:00" 2/17/2026, 1:47:14 AM
model"anthropic/claude-3-7-sonnet-20250219"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1092
moderation_latency(null)
generation_time49476
tokens_prompt812
tokens_completion2810
native_tokens_prompt838
native_tokens_completion2585
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"
usage0.041289
router(null)
provider_responses
0
id"msg_013rnn2fwcn7NZCq6cH9GZCg"
status200
is_byokfalse
latency1034
endpoint_id"1347c8dc-12f5-47df-8355-3ec7e80a8c67"
provider_name"Anthropic"
model_permaslug"anthropic/claude-3-7-sonnet-20250219"
api_type"completions"
id"gen-1771292784-IRN35qEo7VDPIXDQTYD1"
upstream_id"msg_013rnn2fwcn7NZCq6cH9GZCg"
total_cost0.041289
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
0.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags22
adverbTagCount10
adverbTags
0"she muttered, checking her phone again [again]"
1"the voice said, seeming to come from everywhere and nowhere [everywhere nowhere]"
2"the voice said, closer now, just behind her right shoulder [just]"
3"the voice said simply [simply]"
4"she said, backing away more rapidly now, nearly to the edge of the circle [more rapidly nearly]"
5"the voice said, now directly in front of her, though she could see nothing there [directly]"
6"the voice whispered, now directly in her ear [directly]"
7"the voice said, approvingly [approvingly]"
8"the voice said gently [gently]"
9"the voice said, suddenly urgent [suddenly]"
56.8501% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1854
totalAiIsmAdverbs8
found
0
adverb"cautiously"
count1
1
adverb"gently"
count1
2
adverb"hesitantly"
count1
3
adverb"slowly"
count2
4
adverb"suddenly"
count2
5
adverb"very"
count1
highlights
0"cautiously"
1"gently"
2"hesitantly"
3"slowly"
4"suddenly"
5"very"
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)
62.2438% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1854
totalAiIsms7
found
0
word"beacon"
count1
1
word"flickered"
count1
2
word"flicker"
count1
3
word"trembled"
count1
4
word"unsettled"
count1
5
word"weight"
count1
6
word"navigate"
count1
highlights
0"beacon"
1"flickered"
2"flicker"
3"trembled"
4"unsettled"
5"weight"
6"navigate"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences121
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount0
hedgeCount5
narrationSentences121
filterMatches(empty)
hedgeMatches
0"seemed to"
1"began to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount1
totalSentences147
matches
0"heard that sound"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs67
mean27.39
std17.1
cv0.624
sampleLengths
055
19
245
318
471
52
649
740
848
927
105
1161
1240
1315
1455
1542
163
178
189
1931
2021
2118
2217
2313
2424
2528
2619
2724
2825
2912
3036
3119
3212
3337
3417
3511
362
372
3834
3917
4052
4114
4211
4337
4424
4548
4653
4710
4819
4933
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount3
totalSentences121
matches
0"being rubbed"
1"been sent"
2"were supposed"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount2
totalVerbs251
matches
0"was speaking"
1"was walking"
77.8372% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1505
adjectiveStacks1
stackExamples
0"eerie blue-white light upward,"
adverbCount88
adverbRatio0.05847176079734219
lyAdverbCount29
lyAdverbRatio0.019269102990033222
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences147
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences147
mean12.48
std7.55
cv0.605
sampleLengths
016
119
220
39
413
515
617
712
84
92
1014
1113
1224
1320
142
1527
163
1719
182
193
2010
218
2217
2326
2422
2513
2614
275
2816
2922
3023
314
3215
3321
3412
353
3621
3717
3817
3912
4011
4119
423
433
445
457
462
4713
4818
4912
55.1020% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.3469387755102041
totalSentences147
uniqueOpeners51
15.9091% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags22
fancyCount14
fancyTags
0"she muttered, checking her phone again (mutter, check)"
1"she said, trying to keep her voice steady (say, try keep)"
2"the voice said, seeming to come from everywhere and nowhere (say, seem come)"
3"the voice said, ignoring her question (say, ignore)"
4"demanded (demand)"
5"she said, trying to keep her voice steady (say, try keep)"
6"the voice said simply (say simply)"
7"she said, backing away more rapidly now, nearly to the edge of the circle (say, back away more rapidly)"
8"the voice said, now directly in front of her, though she could see nothing there (say, see)"
9"the voice whispered, now directly in her ear (whisper)"
10"the voice called, amused (call, amuse)"
11"demanded (demand)"
12"the voice said gently (say gently)"
13"the voice commanded, now distant and fading (command)"
80.4672%