Run: 2026-05-31-01KSYXC184T32TS9948Y85PXMZ

Run Details

Duration:
45.0s
Cost:
$0.070400
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 first thing Rory noticed was the silence. Not the ordinary hush of Richmond Park at dusk — that was a busy quiet, full of distant traffic and the hum of London pressing in from every direction. This was something else. The moment she stepped past the two leaning oaks, their trunks gnarled into shapes that almost looked like watching faces, the city simply stopped. No traffic. No planes overhead. No wind, even, though the long grass swayed as if some breeze moved through it that she couldn't feel on her skin. "Tell me you felt that," she said. Beside her, Nyx had gone very still. In the failing light their shadow-form looked less solid than usual, edges fraying like ink dropped in water. "I felt it," they whispered, and their voice carried strangely here, doubling back on itself as though the air wanted to keep it. "The Veil is thin. Thinner than I've ever stood in." They tilted their head, violet eyes flaring. "We crossed a boundary back there. Those stones." Rory glanced behind her. The two oaks stood maybe ten feet apart, ordinary enough — except that the path she'd walked in on was gone. Where the muddy track should have been there was only more grass, silvered now, stretching back into a treeline she didn't remember. Her stomach tightened. "Don't look back," Eva said from her other side, sounding far too cheerful for someone whose voice was shaking. "That's always the rule, isn't it? In the stories. You don't look back." "This isn't a story." Rory made herself face forward. "Stay close. Both of you." The grove opened ahead of them like a held breath releasing. Rory had expected a clearing — a circle of trees, maybe, the way fairy-tale woods always seemed to be. Instead the land sloped gently downward into a bowl of impossible color. Wildflowers grew everywhere, thick as a meadow in high summer, except that no summer she'd ever known held all of them at once. Bluebells beside foxgloves beside something that looked like a poppy made of frost, its petals pale and brittle and somehow blooming. Snowdrops nodded next to roses. The seasons had all been poured into one place and stirred. It should have been February. It was warm here, the air heavy with the green smell of growing things and, underneath it, something sweeter and stranger — like honey, like smoke, like a word she'd known once and forgotten. "It's beautiful," Eva breathed. "That's the problem with beautiful things," Nyx murmured. "They're usually beautiful for a reason." The sky was the wrong color too. Not the bruised orange of a London evening but a deep liquid violet shading to gold near a horizon that seemed closer than it ought to be. There were no stars, but there were lights — drifting motes that hung among the flowers and lifted, lazily, when the three of them passed. Rory thought they might be insects until one floated near her face and she saw it had no body at all. Just light. It pulsed, considering her, then darted off into the long grass. At her chest, the Heartstone pendant lay cool and quiet. She'd half expected it to wake here, to warm against her sternum the way it did near the rift points, but it stayed silent. Wherever they were, it wasn't Hel. That should have been a comfort. Somehow it wasn't. They went down into the bowl. The grass parted around Rory's boots without resistance, and when she looked back — she couldn't help it, despite Eva's warning — she saw that she left footprints, dark crushed trails through the silver. Eva left them too. Nyx did not. And neither, she realized with a slow crawl up her spine, did the path ahead of them show any mark at all where something might have walked before. Except — "There." Rory stopped. "Do you see that?" A worn place in the meadow, a faint depression where the flowers grew sparser, curving away to their left. Not a path exactly. More like the memory of one, the way grass remembers the shape of a fallen deer. "Something walks here often enough to wear the ground," Nyx said. "But leaves no track." They crouched, fingers hovering over the bare earth without touching it. "Half-Fae. Old. Older than me, and I died in sixteen forty-three." There was something almost wistful in the whisper. "She'll know we're here. She knew before we crossed the stones." Eva had drifted a little ahead, drawn toward a cluster of those frost-poppies, her hand reaching out. Rory caught her wrist. "Don't touch anything," she said. "Don't eat anything. Don't drink anything. We don't know the rules here." "I wasn't going to—" Eva flushed. Then, quieter: "How long do you think we've been in here?" It was a fair question, and Rory hated that she'd already been thinking it. Isolde, the messages had warned her, lived where time ran crooked. An hour in the grove might be minutes outside. Or days. She'd left a note on Silas' bar saying she'd be back by ten. She had a horrible feeling that ten o'clock had stopped meaning anything the second the oaks closed behind her. "Long enough," she said. "We find her, we get what we came for, we leave. No wandering." They followed the worn place deeper. The bowl of the meadow flattened, and the light-motes thickened until they drifted in slow constellations overhead, and Rory began to hear it — music, or something that wore music's clothes. A single note held impossibly long, with others braiding around it, none of them quite an instrument she could name. It came from everywhere. From the flowers, maybe. From the ground. Eva had stopped walking. Her eyes had gone soft and faraway, her lips parting. "Eva." Rory shook her shoulder. "Eva. Look at me." Her friend blinked, frowned, came back to herself with a small shudder. "Sorry. I — it sounded like someone was calling my name." "It wasn't." "How do you know?" "Because nobody here knows your name," Rory said, and prayed it was true. The fae blade hung heavy at her hip, cold even through its sheath — colder, she thought, than it had been in the park. Isolde's gift, given before any of this, as if the Seer had known they'd come walking into her grove one strange evening with too many questions and not enough sense. Rory rested her palm on the hilt, and the chill of the moonsilver steadied her. Ahead, where the music swelled, the meadow gave way at last to a ring of standing oaks, and within them, seated on nothing, waited a figure with silver hair to her waist and eyes the pale, patient lavender of a dawn that hadn't decided yet whether to break. "You took the long way," said Isolde, "to a place that has no short one."
created_at"2026-05-31T11:40:38.546Z" 5/31/2026, 11:40:38 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3807
moderation_latency(null)
generation_time44721
tokens_prompt1590
tokens_completion1805
native_tokens_prompt2385
native_tokens_completion2339
native_tokens_completion_images(null)
native_tokens_reasoning110
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"
usage0.0704
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01PmhJ8rAfqLCNjRT9kyjUmh"
is_byokfalse
latency1330
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-1780227638-JE4kgZNN69jACaL9IqoR"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227638-yfiKNhpocVeG8dpDbPaB"
upstream_id"msg_01PmhJ8rAfqLCNjRT9kyjUmh"
total_cost0.0704
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags16
adverbTagCount0
adverbTags(empty)
dialogueSentences30
tagDensity0.533
leniency1
rawRatio0
effectiveRatio0
86.87% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1142
totalAiIsmAdverbs3
found
0
adverb"very"
count1
1
adverb"gently"
count1
2
adverb"lazily"
count1
highlights
0"very"
1"gently"
2"lazily"
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)
78.11% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1142
totalAiIsms5
found
0
word"silence"
count1
1
word"stomach"
count1
2
word"pulsed"
count1
3
word"whisper"
count1
4
word"chill"
count1
highlights
0"silence"
1"stomach"
2"pulsed"
3"whisper"
4"chill"
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
narrationSentences81
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount2
narrationSentences81
filterMatches(empty)
hedgeMatches
0"seemed to"
1"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences93
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
totalWords1153
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions12
unquotedAttributions0
matches(empty)
82.01% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions35
wordCount956
uniqueNames11
maxNameDensity1.36
worstName"Rory"
maxWindowNameDensity2.5
worstWindowName"Rory"
discoveredNames
Rory13
Richmond1
Park1
London2
Nyx4
February1
Heartstone1
Hel1
Eva7
Seer1
Isolde3
persons
0"Rory"
1"Nyx"
2"Eva"
3"Seer"
4"Isolde"
places
0"Richmond"
1"Park"
2"London"
globalScore0.82
windowScore0.833
0.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences49
glossingSentenceCount3
matches
0"looked like watching faces, the city simp"
1"looked like a poppy made of frost, its pe"
2"seemed closer than it ought to be"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.867
wordCount1153
matches
0"Not the bruised orange of a London evening but a deep liquid violet shading to gold near a horizon"
94.98% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount2
totalSentences93
matches
0"saw that she"
1"hated that she'd"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs33
mean34.94
std27.9
cv0.799
sampleLengths
08
184
27
373
450
532
614
7102
839
94
1014
1193
1249
1344
1433
157
1639
1756
1821
1917
2017
2168
2217
2368
2414
259
2623
272
284
2913
3069
3148
3215
96.60% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences81
matches
0"was gone"
1"been poured"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs171
matches
0"was shaking"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount10
semicolonCount0
flaggedSentences9
totalSentences93
ratio0.097
matches
0"Not the ordinary hush of Richmond Park at dusk — that was a busy quiet, full of distant traffic and the hum of London pressing in from every direction."
1"The two oaks stood maybe ten feet apart, ordinary enough — except that the path she'd walked in on was gone."
2"Rory had expected a clearing — a circle of trees, maybe, the way fairy-tale woods always seemed to be."
3"It was warm here, the air heavy with the green smell of growing things and, underneath it, something sweeter and stranger — like honey, like smoke, like a word she'd known once and forgotten."
4"There were no stars, but there were lights — drifting motes that hung among the flowers and lifted, lazily, when the three of them passed."
5"The grass parted around Rory's boots without resistance, and when she looked back — she couldn't help it, despite Eva's warning — she saw that she left footprints, dark crushed trails through the silver."
6"Except —"
7"The bowl of the meadow flattened, and the light-motes thickened until they drifted in slow constellations overhead, and Rory began to hear it — music, or something that wore music's clothes."
8"The fae blade hung heavy at her hip, cold even through its sheath — colder, she thought, than it had been in the park."
90.19% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount742
adjectiveStacks0
stackExamples(empty)
adverbCount38
adverbRatio0.05121293800539083
lyAdverbCount6
lyAdverbRatio0.008086253369272238
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences93
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences93
mean12.4
std9.2
cv0.742
sampleLengths
08
129
24
324
42
53
622
77
87
918
1023
1117
128
134
1421
1522
163
1719
1813
199
205
2111
2219
2312
2423
2521
265
2711
285
2934
304
318
326
337
3427
3525
3621
372
3811
3910
4024
416
426
433
446
4534
464
473
4828
492
77.42% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats8
diversityRatio0.5161290322580645
totalSentences93
uniqueOpeners48
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences67
matches
0"Instead the land sloped gently"
1"Somehow it wasn't."
2"More like the memory of"
ratio0.045
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount16
totalSentences67
matches
0"they whispered, and their voice"
1"They tilted their head, violet"
2"Her stomach tightened."
3"It should have been February."
4"It was warm here, the"
5"It pulsed, considering her, then"
6"She'd half expected it to"
7"They went down into the"
8"They crouched, fingers hovering over"
9"It was a fair question,"
10"She'd left a note on"
11"She had a horrible feeling"
12"They followed the worn place"
13"It came from everywhere."
14"Her eyes had gone soft"
15"Her friend blinked, frowned, came"
ratio0.239
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount48
totalSentences67
matches
0"The first thing Rory noticed"
1"This was something else."
2"The moment she stepped past"
3"they whispered, and their voice"
4"They tilted their head, violet"
5"Rory glanced behind her."
6"The two oaks stood maybe"
7"Her stomach tightened."
8"Eva said from her other"
9"Rory made herself face forward"
10"The grove opened ahead of"
11"Rory had expected a clearing"
12"Wildflowers grew everywhere, thick as"
13"Bluebells beside foxgloves beside something"
14"Snowdrops nodded next to roses."
15"The seasons had all been"
16"It should have been February."
17"It was warm here, the"
18"The sky was the wrong"
19"Rory thought they might be"
ratio0.716
74.63% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences67
matches
0"Wherever they were, it wasn't"
ratio0.015
20.41% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences35
technicalSentenceCount6
matches
0"Not the ordinary hush of Richmond Park at dusk — that was a busy quiet, full of distant traffic and the hum of London pressing in from every direction."
1"Bluebells beside foxgloves beside something that looked like a poppy made of frost, its petals pale and brittle and somehow blooming."
2"Not the bruised orange of a London evening but a deep liquid violet shading to gold near a horizon that seemed closer than it ought to be."
3"The bowl of the meadow flattened, and the light-motes thickened until they drifted in slow constellations overhead, and Rory began to hear it — music, or someth…"
4"Isolde's gift, given before any of this, as if the Seer had known they'd come walking into her grove one strange evening with too many questions and not enough …"
5"Ahead, where the music swelled, the meadow gave way at last to a ring of standing oaks, and within them, seated on nothing, waited a figure with silver hair to …"
93.75% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags16
uselessAdditionCount1
matches
0"They crouched, fingers hovering over the bare earth without touching it"
50.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags9
fancyCount3
fancyTags
0"they whispered (whisper)"
1"Eva breathed (breathe)"
2"Nyx murmured (murmur)"
dialogueSentences30
tagDensity0.3
leniency0.6
rawRatio0.333
effectiveRatio0.2
84.8319%