Run: 2026-06-01-01KT1G3C1WCMF61ZS6T7EFXZ3C

Run Details

Duration:
49.2s
Cost:
$0.074825
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 standing stones came out of the dark like teeth. Rory had expected something grander — an archway, maybe, or a curtain of light, the kind of thing that announced itself. Instead there were only the oaks, two of them, leaning toward each other across a gap in the bracken with their bark gnarled into shapes that almost looked like faces if she let her eyes drift. Richmond Park lay behind her, ordinary and damp, the distant orange smear of London glowing against the underside of the clouds. Ahead of her, past the stones, the world simply stopped making sense. "This is it," Nyx said. Their voice arrived the way it always did, less a sound than a suggestion of one, a whisper threaded through the cold air. In the gloom they were barely more than a deeper patch of night, a tall smear of shadow that shifted at the edges. Their violet eyes were the only fixed points. "Past the threshold, the rules loosen. Stay close to me." "That's reassuring," Rory muttered. The Heartstone hung cool against her sternum, dormant now — no portal here, then, whatever else there was. She wrapped her fingers around the dagger at her hip out of habit. The moonsilver was cold even through the leather wrap, the way it always was, but tonight it seemed colder, as though it recognized where they were going. Isolde's gift, coming home. She stepped between the stones. The change wasn't gradual. One foot fell on wet English grass and the next came down on something warmer, springier, and the sound of the city — that low constant hum she'd stopped hearing years ago — vanished as cleanly as if someone had closed a door. Rory's ears rang with the absence of it. She turned to look behind her and found the park gone. There were the oaks, yes, but beyond them was only more grove, more impossible green, folding away into a soft luminous distance that had no London in it at all. "Don't," Nyx said, materializing into something nearly solid at her shoulder. They had a shape now, six feet and more of him, the silhouette firming into the suggestion of a long coat, a narrow face. "Looking back, the first time. It can unsettle you. The way out isn't where you left it." "Brilliant." Her breath caught anyway, because she had turned forward again and the grove had stolen it. It was night here too, but a night that did not behave. There was no moon she could find, yet everything glowed with a gentle borrowed silver, as though the air itself held light the way water holds warmth. Wildflowers grew everywhere — and not in clusters, not in beds, but in drifts and rivers of them, foxglove beside snowdrop beside something with petals like spun glass that she had no name for, blossoms that had no business sharing a season blooming shoulder to shoulder. Spring and autumn and high summer all at once. The smell of them was thick and layered, honey and crushed green and something underneath, older, that made the back of her throat tighten. "It's beautiful," she said, and hated how small her voice sounded. "It's a snare." That was the third of them — Eva, hanging back near the stones with her arms crossed tight over her chest. Her friend's face had gone pale and set. "Beautiful things in places like this are usually snares. You taught me that, Rory." "I read it in a book. Same as you." But Eva wasn't wrong, and they both knew it, and the knowing sat between them as they began to walk. The grass gave under Rory's boots without a sound. She glanced down once and saw, in the silver glow, that she left prints — dark crushed shapes pressing into the dewed green. Nyx left nothing; shadows kept no weight. And ahead of them, picked out faint as breath on glass, ran a line of footprints already pressed into the grass, leading deeper in, the toes pointed away from the stones. Rory crouched and held her fingers above one without touching it. "Someone went this way," she said. "No." Nyx's eyeshine narrowed. "Look again." She looked. The prints were too few — three, four of them, then nothing, as if whoever made them had simply stopped existing in the middle of a stride. Or as if the grove had only bothered to remember part of their passage. "The Seer leaves no prints at all," Nyx said softly. "These belong to someone else. Or to no one. Time pools strangely here. You may be looking at footsteps that haven't been walked yet." Rory stood up rather faster than she meant to. They went on. The light shifted as they moved, never brightening, never dimming, but changing its angle in a way that made the shadows of the wildflowers wheel slowly around their stems like the hands of clocks all set to different hours. Once Rory heard music — pipes, high and aching, somewhere off to the left — and she turned toward it before Nyx's cold not-quite-hand closed around her wrist. "That isn't for you," they said. "Nothing you hear in here is for you unless it says your name. And even then." She pulled free, rubbing the spot where their touch had numbed her skin, right over the small crescent scar on her wrist. The music faded behind a stand of silver birch that she could have sworn hadn't been there a moment ago. Eva had gone quiet, walking close at Rory's shoulder, her breath shallow. "How long have we been in here?" "I don't know." Rory checked her phone. The screen was a smear of meaningless light, the numbers crawling, 11:04 dissolving into 11:04 dissolving into something that wasn't a time at all. She slid it back into her pocket. "I don't think it counts the same way." "An hour in here might be a minute out there," Nyx murmured. "Or your mother might be old before we leave. The grove decides. It's why so few come twice." The path — and it was a path now, the wildflowers thinning to either side of a corridor of moss so soft and deep it swallowed her ankles — bent around a great fallen oak, its trunk wider than a car, and beyond it the land opened into a clearing. Rory stopped breathing. A pool lay at its center, perfectly round, perfectly still, and the not-moon she had failed to find anywhere in the sky was reflected in it whole and bright, a coin of pale fire on black water. Around the pool the standing flowers stood taller than people, their blooms turned inward like a congregation. And the silence here had weight, the held-breath silence of a place that knew it was being looked at. The Fae blade at her hip had begun, faintly, to glow. "We're close," Rory whispered. The cold of the moonsilver was bleeding through her trouser leg now, an ache in the bone. "She's near." Nyx's violet eyes had fixed on the far side of the pool, where the moss gave way to deeper dark beneath a single colossal oak. "Yes," they said, and for the first time since she'd met them, the whisper held something that sounded almost like caution. "And she already knows we're here. She's known since before we did." Out across the still water, the reflected moon trembled once, as though something had passed in front of it — and there had been nothing in the sky to pass. Rory's hand found the dagger's grip. "Then let's not keep her waiting," she said, and stepped out onto the moss, into the light that wasn't moonlight, toward the dark beneath the oldest tree she had ever seen.
created_at"2026-06-01T11:46:26.497Z" 6/1/2026, 11:46:26 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4560
moderation_latency(null)
generation_time49178
tokens_prompt1590
tokens_completion1931
native_tokens_prompt2385
native_tokens_completion2516
native_tokens_completion_images(null)
native_tokens_reasoning67
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.074825
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_015QojoQqYSeU2bYYQGRUxrq"
is_byokfalse
latency1913
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780314386-eKPa3otjYFN6FpTrbDVy"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780314386-XXSfUrteY5JnFaI2GhqP"
upstream_id"msg_015QojoQqYSeU2bYYQGRUxrq"
total_cost0.074825
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags15
adverbTagCount3
adverbTags
0"Her breath caught anyway [anyway]"
1"them — Eva hanging back [back]"
2"Nyx said softly [softly]"
dialogueSentences27
tagDensity0.556
leniency1
rawRatio0.2
effectiveRatio0.2
84.48% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1289
totalAiIsmAdverbs4
found
0
adverb"softly"
count1
1
adverb"slowly"
count1
2
adverb"perfectly"
count2
highlights
0"softly"
1"slowly"
2"perfectly"
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)
61.21% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1289
totalAiIsms10
found
0
word"whisper"
count2
1
word"gloom"
count1
2
word"warmth"
count1
3
word"weight"
count2
4
word"footsteps"
count1
5
word"silence"
count2
6
word"trembled"
count1
highlights
0"whisper"
1"gloom"
2"warmth"
3"weight"
4"footsteps"
5"silence"
6"trembled"
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
narrationSentences68
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount1
narrationSentences68
filterMatches(empty)
hedgeMatches
0"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences80
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen48
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1302
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions12
unquotedAttributions0
matches(empty)
83.33% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions29
wordCount1113
uniqueNames8
maxNameDensity1.08
worstName"Rory"
maxWindowNameDensity2.5
worstWindowName"Rory"
discoveredNames
Park1
London2
Heartstone1
English1
Eva3
Rory12
Nyx8
Fae1
persons
0"Heartstone"
1"Eva"
2"Rory"
3"Nyx"
places
0"Park"
1"London"
globalScore0.961
windowScore0.833
8.49% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences53
glossingSentenceCount3
matches
0"looked like faces if she let her eyes dri"
1"seemed colder as though it recognized where they were going"
2"not-quite hand closed around her wrist"
46.39% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.536
wordCount1302
matches
0"not in clusters, not in beds, but in drifts"
1"not in beds, but in drifts"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences80
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs33
mean39.45
std29.74
cv0.754
sampleLengths
010
190
269
366
45
596
652
717
8118
911
1046
119
1220
1381
146
156
1643
1734
189
1970
2022
2142
2219
2346
2430
2550
263
2773
2811
2923
3058
3130
3237
94.94% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences68
matches
0"was reflected"
1"being looked"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs176
matches
0"were going"
1"was bleeding"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount13
semicolonCount1
flaggedSentences11
totalSentences80
ratio0.138
matches
0"Rory had expected something grander — an archway, maybe, or a curtain of light, the kind of thing that announced itself."
1"The Heartstone hung cool against her sternum, dormant now — no portal here, then, whatever else there was."
2"One foot fell on wet English grass and the next came down on something warmer, springier, and the sound of the city — that low constant hum she'd stopped hearing years ago — vanished as cleanly as if someone had closed a door."
3"Wildflowers grew everywhere — and not in clusters, not in beds, but in drifts and rivers of them, foxglove beside snowdrop beside something with petals like spun glass that she had no name for, blossoms that had no business sharing a season blooming shoulder to shoulder."
4"\"It's a snare.\" That was the third of them — Eva, hanging back near the stones with her arms crossed tight over her chest."
5"She glanced down once and saw, in the silver glow, that she left prints — dark crushed shapes pressing into the dewed green."
6"Nyx left nothing; shadows kept no weight."
7"The prints were too few — three, four of them, then nothing, as if whoever made them had simply stopped existing in the middle of a stride."
8"Once Rory heard music — pipes, high and aching, somewhere off to the left — and she turned toward it before Nyx's cold not-quite-hand closed around her wrist."
9"The path — and it was a path now, the wildflowers thinning to either side of a corridor of moss so soft and deep it swallowed her ankles — bent around a great fallen oak, its trunk wider than a car, and beyond it the land opened into a clearing."
10"Out across the still water, the reflected moon trembled once, as though something had passed in front of it — and there had been nothing in the sky to pass."
94.58% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1104
adjectiveStacks0
stackExamples(empty)
adverbCount51
adverbRatio0.04619565217391304
lyAdverbCount14
lyAdverbRatio0.012681159420289856
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences80
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences80
mean16.27
std10.9
cv0.67
sampleLengths
010
121
236
321
412
55
623
723
88
910
104
1118
1213
1327
144
155
164
1743
188
1911
2030
2111
2224
2317
2417
2512
2627
2746
289
2924
3011
3124
328
3314
349
3520
369
3723
387
3931
4011
416
424
432
442
4527
4614
4710
4824
499
88.33% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats1
diversityRatio0.5375
totalSentences80
uniqueOpeners43
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences61
matches
0"Instead there were only the"
1"Once Rory heard music —"
ratio0.033
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount16
totalSentences61
matches
0"Their voice arrived the way"
1"Their violet eyes were the"
2"She wrapped her fingers around"
3"She stepped between the stones."
4"She turned to look behind"
5"They had a shape now,"
6"Her breath caught anyway, because"
7"It was night here too,"
8"she said, and hated how"
9"Her friend's face had gone"
10"She glanced down once and"
11"They went on."
12"She pulled free, rubbing the"
13"She slid it back into"
14"they said, and for the"
15"she said, and stepped out"
ratio0.262
66.56% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount48
totalSentences61
matches
0"The standing stones came out"
1"Rory had expected something grander"
2"Richmond Park lay behind her,"
3"Their voice arrived the way"
4"Their violet eyes were the"
5"The Heartstone hung cool against"
6"She wrapped her fingers around"
7"The moonsilver was cold even"
8"Isolde's gift, coming home."
9"She stepped between the stones."
10"The change wasn't gradual."
11"Rory's ears rang with the"
12"She turned to look behind"
13"Nyx said, materializing into something"
14"They had a shape now,"
15"Her breath caught anyway, because"
16"It was night here too,"
17"Wildflowers grew everywhere — and"
18"Spring and autumn and high"
19"The smell of them was"
ratio0.787
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences61
matches(empty)
ratio0
0.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences38
technicalSentenceCount8
matches
0"Rory had expected something grander — an archway, maybe, or a curtain of light, the kind of thing that announced itself."
1"In the gloom they were barely more than a deeper patch of night, a tall smear of shadow that shifted at the edges."
2"The moonsilver was cold even through the leather wrap, the way it always was, but tonight it seemed colder, as though it recognized where they were going."
3"One foot fell on wet English grass and the next came down on something warmer, springier, and the sound of the city — that low constant hum she'd stopped hearin…"
4"There were the oaks, yes, but beyond them was only more grove, more impossible green, folding away into a soft luminous distance that had no London in it at all…"
5"Wildflowers grew everywhere — and not in clusters, not in beds, but in drifts and rivers of them, foxglove beside snowdrop beside something with petals like spu…"
6"The light shifted as they moved, never brightening, never dimming, but changing its angle in a way that made the shadows of the wildflowers wheel slowly around …"
7"The screen was a smear of meaningless light, the numbers crawling, 11:04 dissolving into 11:04 dissolving into something that wasn't a time at all."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags15
uselessAdditionCount0
matches(empty)
38.89% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags11
fancyCount3
fancyTags
0"Rory muttered (mutter)"
1"Nyx murmured (murmur)"
2"Rory whispered (whisper)"
dialogueSentences27
tagDensity0.407
leniency0.815
rawRatio0.273
effectiveRatio0.222
75.5737%