Run: 2026-02-17-01KHMR9YDGTPGTYDYQPRZ57DK4

Run Details

Duration:
22.6s
Cost:
$0.015459
Provider:
OpenAI

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
Aurora Carter’s boots sank into damp moss the moment she slipped between the ancient oak standing stones. Moonlight pooled in silvery patches on the ground, illuminating wildflowers that should have withered months ago. Their petals trembled in a breeze she couldn’t feel. The Heartstone pendant at her throat pulsed warm against her sternum, as though it recognized something buried in these woods. She drew in a breath so deep her lungs burned, the chill night air filling her chest. Outside, Richmond Park lay silent—no coyotes on the prowl, no prowling foxes. Here, every sound felt borrowed from some other world. She clicked her flashlight on, its beam slicing through shadow. Tiny motes of dust hung in the beam, swirling like distant stars. Aurora’s fingers tightened around the flashlight’s grip, her other hand brushing the small crescent-shaped scar on her left wrist. A childhood accident. The memory of it flickered brief and bright—fear, then pain, then relief. She pressed her palm against the scar. Here, fear gathered again, slow and insistent. She’d come because the pendant had pulsed all afternoon, its crimson core glowing faintly under her T-shirt. Like a heartbeat guiding her. Eva’s text had been simple: “Meet me in the Grove, Rory. It’s important.” Aurora had tried to argue—deliveries to make, a flat to clean—but something in the pendant’s warmth had called her out. And now the Grove felt off from the moment she arrived. The time-slowing enchantment wasn’t new; she’d read legends in old books. But living it was different. Her watch said ten past midnight, but outside only fifteen minutes had elapsed since sunset. Inside, it felt endless. She advanced, stepping over tangled roots that writhed underfoot. She heard a twig snap to her left. She froze. No animal emerged. The beam of her flashlight landed on a cluster of bluebells—glowing faintly, phosphorescent in the dark. They shouldn’t do that. A shiver ran down her spine. She swallowed. Everything in her argued for retreat. But the pendant pulsed warmer, urging her on. A distant rustle, like fabric brushing bark. She swung the flashlight, the beam dancing across gnarled trunks. A white shape glinted between two oaks—no more than a second, a blur at the edge of her vision. She blinked. The shape was gone. Her pulse ratcheted faster. She forced her jaw to unclench. You’re imagining it. The Grove warps your mind. She steadied her breathing and checked the pendant again. The deep crimson stone hummed against her skin. She exhaled. The air tasted of damp earth and something coppery—like fresh blood. Aurora swallowed around a sudden dryness in her throat. She wiped a bead of sweat from her brow, though the night was cold. Raindrops hissed suddenly on leaves overhead. No rain had been forecast. She looked up: the sky was clear. She frowned, shone her light into the canopy. No raindrops hit her cheeks. Yet the sound pattered around her, soft and spongy. She lifted the beam again. Hollow oaks arched overhead, their bark slick with moisture that wasn’t there. The Grove was breathing. She braced herself against a nearby trunk. Her heart thundered. “Eva?” Her voice sounded small. Brittle. She nicknamed herself softly: “Rory.” The pendant warmed at the sound. A whisper wound through the trees, distant but urgent: “Rory…” She jerked her head toward the voice. It had sounded like Eva—familiar, comforting. “Eva?” she called again, higher. Silence swallowed her words. The wildflowers bowed as if a gust had blown through, though the air remained still. She forced a step forward. The standing stones rose at uneven intervals, their surfaces carved in runes she could not read. Moonlight tattooed them with shifting patterns. She traced one with a trembling fingertip. The stone was warm. Vibrating. Not cold granite, but living wood. A heartbeat in the stone. She gasped and stumbled backward. Branches scraped together behind her. Soft laughter, hollow and hungry. She spun. The beam caught pale skin, stretched tight across a slender limb. A figure stood at the edge of light—too tall, too thin, its head canted at an impossible angle. The face was featureless, smooth as driftwood. Aurora’s throat seized. She raised her flashlight, choking out a breath. The creature froze, then turned away, gliding between the trees. Her panic roared. She stumbled after it, nearly discarding her flashlight. “Stop!” she yelled. The voice came out ragged. No answer but her own echo. She swallowed, pressed a hand to her chest where her breathing rasped. The pendant drummed hot, an urgent pulse that seemed almost frantic. She followed the creature deeper, driven by humiliating curiosity. Every step she took, the laughter trailed behind, teasing. She passed a circle of wildflowers that bloomed white under the moon. Each bloom looked like a tiny face, crying tears of dew. A cold dread knotted her stomach. She wanted to turn back. But the pendants warmth held her in place—tethered, luring. She stepped into a hollow where the air felt thicker. Her flashlight beam tremored. The creature’s laughter echoed all around her now, closer, coming from every direction. She shivered, wrapping her arms around herself. The grove’s silence fractured into murmurs, a thousand soft voices speaking in tongues she almost understood. They said her name: Aurora. Laila. Rory. Malphora. She sank to her knees. The ground pulsed beneath her, alive. Glowworms crawled across the dirt, leaving trails of faint light. Her hand found the pendant. She unclasped it, lifted it into the beam. The crimson stone burned bright, scorching her palm. It glowed so fiercely she had to shield her eyes. Then every whisper stopped. Every wildflower closed its face. The glowworms froze mid-glimmer. The creature stepped back into view, standing among the standing stones, its limbs slack, head tilted. The light from the pendant painted it in harsh relief. Aurora realized its face resembled hers—smooth, unblemished, the scar absent. She felt bile rise in her throat. “Why did you come?” A voice, hollow as the night, spoke from everywhere and nowhere. She shook her head, tears stinging at the corners of her eyes. “I—my friend…” Her voice broke. “I came because Eva said—” “Eva?” The creature echoed. Its tone was curious, amused. “Eva left long ago.” She staggered backward. The creature advanced on silent feet. The moon dipped behind a cloud, plunging the grove into deeper darkness. Aurora’s flashlight flickered then died. Total black. She groped for the pendant. Its warmth throbbed like a living thing. “Stay back.” She lifted her hand, the stone glowing. She’d once read that light can banish darkness. The creature halted, its outline wavering. She swallowed courage, stepped forward. “This belongs to me.” “You belong here,” the creature whispered. Its voice a sigh against her skin. The ground beneath her vibrated with silent laughter. A sharp pain burned in her wrist where the scar lay. She glanced down: the crescent scar glowed faintly, as if responding to the pendant. She realized then the truth—this place had marked her long ago. She cupped the pendant against her scar, pressed until warmth bled into her veins. The creature recoiled, its form splintering into shards of shadow. Aurora pivoted, sprinted toward the standing stones. She felt the pendant’s pull behind her, guiding. Tears blurred her vision, but she ran. The stones warped around her, elongating, twisting. Roots tugged at her boots, trying to hold her. Branches snagged her hair. She yanked free, breath ragged. Then she burst through the final stone. Moonlight flooded her. The Grove’s boundary closed behind her with a faint sigh. The padded laughter died. The wildflowers stood still. Silence reclaimed the night. She dropped to her knees outside the stones, chest heaving. The pendant’s glow dimmed to its normal pulse. The forest beyond Richmond Park was still. A deer watched her from the edge of the trees, unafraid. She blinked, brushed dirt from her jeans, and checked her wrist. Her scar was just a scar again. Aurora dangled the Heartstone pendant from her fingers, its warmth a quiet promise against her palm. No moonbeam shivered across it now, no voices murmured from beyond. She closed her eyes, trying to unhear the laughter. When she opened them, the clearing was gone. The oak stones were gone. Only unremarkable woodland stretched before her. A distant owl called. Somewhere far off, the city hummed. She stood, shoulders trembling. She let the pendant slip back beneath her shirt. Night air bit at her arms. She looked back once, half expecting the grove to reappear. But the path was empty. She whispered to the darkness, “No more secrets.” And turned toward home.
created_at"2026-02-17T02:54:31.162435+00:00" 2/17/2026, 2:54:31 AM
model"openai/o4-mini-2025-04-16"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency10301
moderation_latency(null)
generation_time22405
tokens_prompt812
tokens_completion2286
native_tokens_prompt742
native_tokens_completion3328
native_tokens_completion_images0
native_tokens_reasoning1344
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"completed"
usage0.0154594
router(null)
provider_responses
0
id"resp_0e3e06e8bf77ae74016993d8505e508194a4f894c141737a31"
status200
is_byokfalse
latency118
endpoint_id"bd121898-b27c-4e2c-bc92-278627465a54"
provider_name"OpenAI"
model_permaslug"openai/o4-mini-2025-04-16"
api_type"completions"
id"gen-1771296848-zP2FBgrVPkP5GVuyrRke"
upstream_id"resp_0e3e06e8bf77ae74016993d8505e508194a4f894c141737a31"
total_cost0.0154594
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags3
adverbTagCount0
adverbTags(empty)
86.1400% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1443
totalAiIsmAdverbs2
found
0
adverb"softly"
count1
1
adverb"suddenly"
count1
highlights
0"softly"
1"suddenly"
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)
30.6999% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1443
totalAiIsms10
found
0
word"throbbed"
count1
1
word"flickered"
count2
2
word"wavering"
count1
3
word"trembled"
count1
4
word"fractured"
count1
5
word"dancing"
count1
6
word"echo"
count1
7
word"echoed"
count2
highlights
0"throbbed"
1"flickered"
2"wavering"
3"trembled"
4"fractured"
5"dancing"
6"echo"
7"echoed"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"shiver down spine"
count1
highlights
0"A shiver ran down her spine"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences179
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences179
filterMatches
0"watch"
hedgeMatches
0"tried to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount1
totalSentences182
matches
0"read that light"
90.4639% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs30
mean47.63
std22.23
cv0.467
sampleLengths
0100
170
2101
364
460
553
671
727
837
955
1069
1148
1261
1358
1452
1556
1615
1722
1813
1940
2032
2121
2260
2347
2432
2554
2636
2729
2834
2912
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount3
totalSentences179
matches
0"was gone"
1"was gone"
2"were gone"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount1
totalVerbs264
matches
0"was breathing"
94.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1402
adjectiveStacks1
stackExamples
0"small crescent-shaped scar"
adverbCount46
adverbRatio0.03281027104136947
lyAdverbCount9
lyAdverbRatio0.006419400855920114
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences182
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences182
mean7.85
std4.48
cv0.571
sampleLengths
017
116
29
320
417
512
69
710
812
919
103
1112
127
137
1417
155
1633
1711
1811
195
2015
214
229
238
242
253
2616
274
286
292
306
318
327
3310
3419
352
364
374
386
393
405
419
428
432
4411
459
4614
476
485
497
42.8571% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats13
diversityRatio0.2692307692307692
totalSentences182
uniqueOpeners49
8.3333% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags3
fancyCount2
fancyTags
0"the creature whispered (whisper)"
1"She whispered to the darkness, And turned toward home. (whisper turn)"
85.4408%