Run: 2026-02-17-01KHMRCZAC0C7F0BSP5W9HTT7Q

Run Details

Duration:
1m 8s
Cost:
$0.073440
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> <character id="4418" name="Nyx" aliases="Nyx, the Shadow, Nightwhisper" pronouns="they/them" species="Shade" storyRole="Wild Card"> <eyeColor>faintly glowing violet</eyeColor> <height>approximately 6'2" in solid form</height> <age>ageless</age> <form>humanoid silhouette of living shadow, can shift between solid and incorporeal</form> <voice>sounds like a whisper carried on the wind</voice> <description>A being of living shadow, existing between the mortal plane and the spaces between realms.</description> <backstory>Nyx was once a human sorcerer named Aldric who became trapped between realms during a failed summoning ritual in 1643. They now exist as a Shade, bound to the mortal plane but able to slip between shadows.</backstory> </character> <character id="4424" name="Isolde Varga" aliases="Isolde, the Seer" pronouns="she/her" species="Half-Fae" storyRole="Oracle"> <eyeColor>pale lavender</eyeColor> <hair>silver, reaching her waist</hair> <height>5'5"</height> <age>300 years old</age> <appearance>ethereal, ageless</appearance> <speech>speaks in riddles</speech> <footprints>leaves no footprints when she walks</footprints> <compulsion>cannot lie (Fae compulsion) but can mislead</compulsion> <description>A Half-Fae seer exiled from the Fae Courts for sharing visions with mortals.</description> <backstory>She now lives in a hidden grove in Richmond Park, offering cryptic prophecies to those who seek her out.</backstory> </character> <location id="853" name="Dymas (Gluttony)" aliases="Dymas, gluttony, Dymasian" realm="Hel" sin="Gluttony"> <ruler>Prince Belphegor</ruler> <skyColor>warm amber</skyColor> <description>A place of excess and indulgence. Sprawling vineyards, orchards, and gardens provide exotic ingredients for master chefs — often helbound souls contracted from Earth. Grand feasts and culinary competitions are common.</description> </location> <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> <item id="2006" name="Fae-Forged Blade" aliases="the Fae blade, Isolde's gift" type="Weapon" origin="The Fae Courts"> <material>moonsilver</material> <shape>slender, leaf-shaped dagger</shape> <temperature>always cold to the touch</temperature> <glow>faintly luminescent in moonlight</glow> <power>can cut through magical wards; particularly effective against demons</power> <givenTo>given to Aurora by Isolde as a gift</givenTo> <description>A weapon of the Fae Courts, rare and highly coveted.</description> </item> <lore id="7001" name="The Veil" aliases="the Veil, the Barrier, the Boundary" category="Cosmology"> <solsticeEffect>weakens during the winter solstice, strengthens during the summer solstice</solsticeEffect> <appearance>faint shimmering distortion visible only to those with supernatural sight</appearance> <monitoring>rift points (tears in the Veil) are monitored by the Wardens</monitoring> <description>The Veil is the metaphysical barrier separating Earth from Hel and the Fae Realms.</description> </lore> </codex> Write a fully fleshed out scene of at least 1000 words in the fantasy genre. A small group enters an ancient, otherworldly place for the first time. The environment is alien and wondrous. Describe their exploration — what they see, hear, and feel as they move deeper. Include moments of discovery, unease, and wonder. Let the world-building emerge through the characters' experience rather than exposition. Use the codex entries above as your world reference for characters, setting, and lore. Only include the prose of the scene without any markdown or commentary.

Model response

AI
The air changed the moment they crossed the boundary stones. Rory felt it first in her lungs—a fullness, as though each breath carried more oxygen than London air had any right to offer. Then it hit her skin, a warmth that didn't belong to late November, rich and honeyed and faintly sweet, like walking into a kitchen where something magnificent had been baking for hours. She stopped two paces past the ancient oaks and stared. Richmond Park was gone. Not hidden behind them, not obscured by mist or magic—simply gone, as if the grey English afternoon had been a curtain someone had pulled aside. In its place stretched a clearing carpeted with wildflowers she couldn't name, their petals in colors that sat wrong against what she knew of botany: blues too vivid, purples that seemed to hum, whites that glowed faintly from within as though each flower held a trapped candle flame. The trees ringing the glade were oaks, or had been once, but their bark spiraled in patterns too deliberate for nature, carved or grown into knotwork that made her eyes ache if she followed the lines too long. "Don't stare at the trees," Isolde said from ahead, already several steps into the clearing. She moved across the flowers without bending a single stem. Rory looked down and saw that the Seer left no footprints in the soft earth, though Rory's own boots sank a quarter inch with each step. "The patterns weren't made for mortal eyes. They'll try to teach you things you're not ready to learn." "Cheery," Rory muttered. She pulled her jacket tighter, though she wasn't cold. The Heartstone pendant beneath her shirt pulsed gently against her sternum, a steady warmth like a second heartbeat. It had been doing that since they'd entered the park, growing more insistent the closer they'd gotten to the stones. Now it thrummed in a rhythm that didn't match her own pulse, syncopated, as if the pendant were listening to music she couldn't hear. A shadow peeled away from one of the oaks to her left, and she flinched before she recognized the shape. Nyx materialized into something approaching solidity—a tall silhouette with edges that drifted like smoke, their violet eyes the only points of color in an otherwise dark form. They tilted what passed for a head, taking in the grove. "This place remembers," Nyx whispered. Their voice carried the way it always did, arriving in Rory's ear as though spoken from inches away regardless of distance. "It remembers what it was before the Veil separated things." "Before the Boundary, the Courts and the mortal world were one garden," Isolde said. She didn't turn around. "This grove is a splinter of that garden. A seed that refused to die when the soil changed." Rory opened her mouth to ask what that meant in practical terms, then decided she didn't want to know yet. She was too busy looking. Beyond the initial ring of oaks, the glade opened into something wider than any clearing in Richmond Park had a right to be. The geometry was wrong—she could feel it in her bones, the way the space seemed to unfold as they walked, revealing more of itself with each step. A stream cut through the center, its water so clear it looked like liquid glass, and where it caught the light it threw prismatic reflections onto the undersides of leaves overhead. The sky—she looked up and her breath caught. The sky was a deep twilight blue despite the fact that it had been half-two in the afternoon when they'd entered the park. Stars burned there, but they were too large, too close, arranged in constellations she didn't recognize. One of them moved, drifting lazily across the firmament like a luminous fish in a dark ocean. "That's not a star," she said. "No," Isolde agreed. "It isn't." Rory waited for more. None came. She exhaled through her teeth and kept walking. The flowers changed as they moved deeper. Near the boundary they'd been small—crocuses and things that could almost pass for earthly wildflowers if you didn't look too hard. Here they grew larger, stranger. Blooms the size of dinner plates turned to follow their passage, petals shifting orientation like satellite dishes tracking a signal. One of them opened as Rory passed, releasing a puff of golden pollen that drifted upward and hung in the air, each mote glowing like an ember. She reached out without thinking. "Don't touch that." Nyx's shadow-hand closed around her wrist, and the contact shocked her—not painfully, but strangely, the way touching a television screen felt in the days of cathode rays, a buzzing static charge against her skin. Nyx released her immediately, their form rippling as though the contact had cost them something too. "The pollen?" Rory asked. "Fae things have prices," Nyx murmured. "Even the beautiful ones. Especially the beautiful ones." She pulled her hand back and tucked it into her pocket, fingers brushing the cold hilt of the Fae-forged blade Isolde had given her the week before. The moonsilver dagger was always cold, even when she kept it close to her body, and in this place its chill felt almost deliberate, a reminder. The blade was a thing of the Fae Courts, and it knew where it was. She could swear she felt it vibrating, a frequency too fine for sound, as though the metal were singing at a pitch only other Fae things could hear. They reached the stream, and Isolde stopped. She stood at its bank with her hands folded before her, silver hair hanging motionless despite a breeze that stirred everything else in the glade. Her pale lavender eyes were closed. "This is the heart," she said. "This is where the grove breathes." Rory crouched beside the water. Her reflection stared back at her—black hair, blue eyes, the sharp lines of a face that hadn't been sleeping well—but the reflection was wrong. It lagged behind her movements by a fraction of a second. When she tilted her head, the reflection tilted a beat later, as though it had to think about mimicking her. And its eyes were darker. She was sure of it. Her own eyes were bright blue, always had been, but the eyes in the water were the color of a deep ocean trench, almost black. "The water shows what you carry," Isolde said. "Not what you are. Don't confuse the two." "What does that mean?" "It means your burden is heavy, but it is not you." Isolde opened her eyes. "That is all it means. No more, no less, exactly what it is." Rory straightened, unsettled. She rolled the sleeve of her jacket down over the crescent-shaped scar on her left wrist—an old reflex, nothing to do with the grove—and looked away from the stream. Nyx had drifted to the far edge of the clearing, where the oaks grew closer together and their canopy thickened into darkness. They stood at the threshold of that deeper shadow, and for a moment Rory couldn't tell where Nyx ended and the natural darkness began. Only those violet eyes marked them, two faint points of light floating at head height. "There's something deeper," they said, and their whisper carried a note Rory hadn't heard from them before. Awe, maybe. Or recognition. "Beyond these trees. I can feel it. A thinning." "The Veil," Rory said. "What's left of it here." Nyx turned back to face them, and their form solidified, edges sharpening as if they were pulling themselves together by force of will. "It's gossamer in this place. Tissue paper. I could push through it with a thought." "And what would be on the other side?" Rory asked. "That," Isolde said quietly, "depends on which direction you push." The pendant flared warm against Rory's chest, and she pressed her palm over it through her shirt. The pulse had quickened. She could feel it now like a compass needle swinging, pointing deeper into the grove, toward the darkness where Nyx stood, toward whatever lay behind the thinning Veil. "Hel," she said. It wasn't a question. Isolde's silence was the loudest confirmation Rory had ever heard. She walked toward the dark trees. Each step felt heavier, not because the ground resisted but because the air itself seemed to thicken, growing warmer, sweeter—that bakery smell again, but richer now, almost cloying. Cinnamon and roasted fruit and something underneath it all that was darker, earthier, the smell of wine left too long in the cask. The warmth reminded her of something she'd read in the old texts, the descriptions of Dymas, the realm of Gluttony, where grand feasts never ended and the sky burned a permanent amber. A place of excess. A place designed to make you want. She stopped three paces from the treeline. Through the gaps between the oaks she could see it—a shimmer in the air, barely there, like heat haze rising from summer asphalt. It rippled and shifted, and for half a second she thought she saw through it: a landscape of rolling vineyards beneath a sky the color of warm honey, vast and terrifying and beautiful. Then it was gone, and there was only the dark between the trees. "Did you see that?" she breathed. "I saw what the grove wished me to see," Nyx said beside her. She hadn't heard them move. "Which may not be the same." "I saw vineyards. An amber sky." Nyx's form flickered. "I saw a door. Standing open." They looked at each other—or rather, Rory looked at the violet points of light where Nyx's eyes burned, and Nyx looked back with whatever senses a being of living shadow used instead of sight. "Isolde," Rory said, not turning from the shimmer. "Why did you bring us here?" The Seer appeared at her other side. Close up, Isolde smelled of nothing at all—no perfume, no soap, no human scent of any kind. As if she existed only partly in the physical world. "Because you carry a key from Dymas around your neck," Isolde said, and her voice held none of its usual riddles. The words landed plain and heavy. "And because the Veil is weakening, and what comes through will not ask permission. And because the three of us, unlikely as we are, are standing in the only place in London where we might learn how to stop it." Rory looked down at her chest. The pendant's glow was visible now even through her shirt, a deep crimson light pulsing against the dark fabric. "Right," she said. She drew the Fae blade from her pocket. It caught the strange starlight and gleamed, cold and luminescent, and in its glow the shimmer between the trees solidified into something almost visible—a boundary, a threshold, a door. She could feel it waiting. "Then let's learn."
created_at"2026-02-17T02:56:56.107855+00:00" 2/17/2026, 2:56:56 AM
model"anthropic/claude-4.6-opus-20260205"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1979
moderation_latency(null)
generation_time68185
tokens_prompt1590
tokens_completion2689
native_tokens_prompt1758
native_tokens_completion2586
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"
usage0.07344
router(null)
provider_responses
0
id"msg_01WxgqThMA9u7Ve4mCwS6wC6"
status200
is_byokfalse
latency1979
endpoint_id"c926c048-563e-44b0-8434-95965bee924c"
provider_name"Anthropic"
model_permaslug"anthropic/claude-4.6-opus-20260205"
api_type"completions"
id"gen-1771296947-GLBRdt9gfPGrFKx5Ux45"
upstream_id"msg_01WxgqThMA9u7Ve4mCwS6wC6"
total_cost0.07344
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
98.2456% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags19
adverbTagCount2
adverbTags
0"Isolde said from ahead, already several steps into the clearing [already]"
1"Isolde said quietly [quietly]"
89.0231% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1822
totalAiIsmAdverbs2
found
0
adverb"gently"
count1
1
adverb"lazily"
count1
highlights
0"gently"
1"lazily"
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)
83.5346% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1822
totalAiIsms3
found
0
word"luminous"
count1
1
word"flickered"
count1
2
word"unsettled"
count1
highlights
0"luminous"
1"flickered"
2"unsettled"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"hung in the air"
count1
highlights
0"hung in the air"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences109
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount0
hedgeCount3
narrationSentences109
filterMatches(empty)
hedgeMatches
0"seemed to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount3
totalSentences126
matches
0"saw that the"
1"touch that.\" Nyx's"
2"see that?\" she"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs50
mean36.04
std33.29
cv0.924
sampleLengths
010
165
2115
369
474
558
636
736
825
9145
106
115
1214
1380
145
1553
164
1714
1896
1938
2012
2195
2216
234
2428
2532
2661
2730
284
2943
3010
3110
3249
337
3410
35100
3663
3713
386
3924
406
419
4234
4314
4434
4567
4625
4740
485
493
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount2
totalSentences109
matches
0"was gone"
1"was gone"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount3
totalVerbs269
matches
0"were listening"
1"were singing"
2"were pulling"
97.9961% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1537
adjectiveStacks0
stackExamples(empty)
adverbCount65
adverbRatio0.04229017566688354
lyAdverbCount17
lyAdverbRatio0.011060507482108002
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences126
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences126
mean14.3
std10.15
cv0.71
sampleLengths
010
123
232
310
44
525
648
738
815
910
1026
1118
123
139
1418
1520
1624
1720
1827
1911
205
2121
2210
2314
244
2518
2620
275
2823
2927
3031
318
3223
3316
3417
356
363
372
384
392
408
417
4221
435
4420
4527
465
4737
4816
494
60.8466% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.3888888888888889
totalSentences126
uniqueOpeners49
69.7368% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags19
fancyCount8
fancyTags
0"Rory muttered (mutter)"
1"Nyx whispered (whisper)"
2"Isolde agreed (agree)"
3"Nyx murmured (murmur)"
4"they said, and their whisper carried a note Rory hadn't heard from them before (say, carry does not hear from)"
5"Isolde said quietly (say quietly)"
6"Rory said, not turning from the shimmer (say, does not turn)"
7"Isolde said, and her voice held none of its usual riddles (say, hold)"
94.0813%