Run: 2026-05-31-01KSYXNRZAZ40P2ZKRVJH5VJ29

Run Details

Duration:
45.3s
Cost:
$0.069075
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 rose from the bracken like the ribs of some long-dead leviathan, ancient oaks petrified into grey columns, their bark gone hard and cold as iron. Rory stopped at the threshold between two of them, one boot in the mud of Richmond Park, the other hovering over grass that should not have been so green in November. "This is it?" she asked. Her breath fogged on the Park side. It didn't on the other. Beside her, Nyx was little more than a smudge of darkness against the failing light, a humanoid blot that the dusk seemed reluctant to define. Their voice came as it always did, soft as something brushing the inside of her ear. "This is a door. Whether it is the right one, that depends on what you're willing to leave behind on this side." "Cryptic. You and the seer should compare notes." "We have. She won." Rory snorted and stepped through. The cold vanished. That was the first thing — the bone-deep London damp peeled away from her like a wet coat, replaced by warmth that smelled of cut grass and something sweeter beneath it, honeysuckle and crushed thyme and a third scent she had no name for. The light changed too. Behind her, through the gap in the stones, the Park sat under a bruised winter sky, joggers and dog-walkers and the distant grumble of the South Circular. In front of her it was a long golden afternoon, the kind that came in late June and seemed in no hurry to end. She turned in a slow circle, and the hair on her arms lifted. Wildflowers grew in every direction, a riot of them — foxglove and cornflower, poppies the deep red of arterial blood, white stars she didn't recognise that turned their faces toward her as she passed, the way sunflowers track the sun. They opened and closed in a rhythm that wasn't quite breathing but came close enough to make her skin crawl. The grass underfoot was springy and warm, and when she looked behind her she saw the print her boots had pressed into it. Just hers. Beside them, where Isolde was said to walk, the seer would leave nothing at all. "Don't eat anything," Nyx said. They had taken a more solid shape here, six feet and more of edged shadow, their violet eyes the only colour in all that darkness. They were studying the flowers with what she might have called distaste, if a being made of absence could be said to have a face. "Don't drink anything. Don't take anything that's offered freely, and don't promise anything in return for anything else." "You've said that four times." "I'll say it forty more if it keeps you breathing." A pause. "Time runs strange here. We may have an hour. We may have a week. The Park won't have changed when we go back. Or it'll be spring. There's no telling." That landed harder than she wanted it to. Rory thought of the Golden Empress, of Yu-Fei's narrow patience, of the flat above Silas' bar where her toothbrush still sat in its cracked cup as though she meant to come back tonight and brush her teeth and go to bed like an ordinary woman. The thought felt suddenly thin, like a photograph of a life that belonged to someone else. She kept walking. The clearing went deeper than it had any right to. From the standing stones it had looked like a single field, a few hundred yards across, ringed by ordinary parkland trees. But the further in they went the more those edges dissolved, the ordinary oaks giving way to giants — trunks broad as houses, bark silvered and smooth, branches lacing overhead into a canopy that filtered the gold light into shifting coins on the ground. Somewhere water was running. Somewhere a bird was singing the same six notes over and over, perfectly, mechanically, a music box left to wind down. "Do you hear that?" she whispered. "Yes." "Is it real?" "Define real," Nyx said, and then, when she shot them a look: "It's a warning. The Fae sing to mark a boundary the way you'd hang a sign. We're being noticed." As if in answer the Heartstone pendant shifted against her sternum. Not the warmth it gave near a Hel portal — this was different, a faint vibration, like the artifact had cocked its head to listen. She pressed her palm flat over it through her shirt and felt it pulse once, twice, settling. The grove opened. She came out from under the great trees into a hollow ringed with hawthorn in full white flower, and her breath caught somewhere behind her ribs. A spring rose at the centre of it, welling up over pale stones into a pool so clear she could see the coins lying on the bottom — old coins, copper and silver and shapes of gold she didn't recognise, some of them so corroded they'd fused into the rock. Around the pool the air glittered. Not dust. Light, hanging suspended, motes of it drifting upward in defiance of every law she'd ever trusted to keep her feet on the ground. "Beautiful," she said, and meant it, and hated how small the word was. "Beautiful things here have teeth," Nyx murmured. They had gone very still. "Aurora. Look at the water. Don't lean over it." She didn't ask why. She'd learned that much. But she let her eyes drop, careful, and saw her own reflection looking back — and behind it, deeper, a second face that was hers and not hers, older, crowned, with eyes that held a knowledge her own had never carried. The reflection smiled before she did. She stepped back so fast she nearly fell. "What was that—" "A possibility." The voice was new. It came from the far side of the pool, where a moment before there had been only hawthorn, and now there was a woman, silver hair pouring past her waist, eyes the pale lavender of the sky just before true dark. She stood barefoot in the wildflowers and the flowers did not bend beneath her. "Or a memory. Or a lie I haven't told you yet. The water shows what it likes. It likes you, which is more than I can say for most who find their way to my door." Rory's hand had gone, without her deciding it should, to the cold weight of the moonsilver dagger at her hip — the blade this same woman would, in some tangle of past and future Rory hadn't yet learned to unknot, give her freely. Isolde watched the gesture and did not seem troubled by it. "You came seeking answers," she said. "How brave. How young." She tilted her head, and somewhere the unseen bird sang its six notes, and stopped. "Ask, then, daughter of the barrister. But understand — in this grove, I cannot lie to you." A faint smile. "I never said I'd make it easy."
created_at"2026-05-31T11:45:57.75Z" 5/31/2026, 11:45:57 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3882
moderation_latency(null)
generation_time45250
tokens_prompt1590
tokens_completion1735
native_tokens_prompt2385
native_tokens_completion2286
native_tokens_completion_images(null)
native_tokens_reasoning81
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"
usage0.069075
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01Gb7dzuPyQgamTnWB7xH5Qz"
is_byokfalse
latency1332
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-1780227957-ZrRkW4op4bPq7kmyD7nb"
session_id(null)
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api_type"completions"
id"gen-1780227957-TyIqJNtsj6mZOXfOru6H"
upstream_id"msg_01Gb7dzuPyQgamTnWB7xH5Qz"
total_cost0.069075
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
totalTags9
adverbTagCount0
adverbTags(empty)
dialogueSentences23
tagDensity0.391
leniency0.783
rawRatio0
effectiveRatio0
87.09% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1162
totalAiIsmAdverbs3
found
0
adverb"suddenly"
count1
1
adverb"perfectly"
count1
2
adverb"very"
count1
highlights
0"suddenly"
1"perfectly"
2"very"
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)
82.79% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1162
totalAiIsms4
found
0
word"warmth"
count2
1
word"pulse"
count1
2
word"weight"
count1
highlights
0"warmth"
1"pulse"
2"weight"
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
narrationSentences59
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences59
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences71
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen49
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1170
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions17
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions25
wordCount919
uniqueNames15
maxNameDensity0.54
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Park"
discoveredNames
Richmond1
Park3
November1
Nyx4
London1
South1
Circular1
June1
Isolde2
Golden1
Empress1
Yu-Fei1
Heartstone1
Hel1
Rory5
persons
0"Nyx"
1"Isolde"
2"Yu-Fei"
3"Rory"
places
0"Richmond"
1"Park"
2"November"
3"London"
4"Hel"
globalScore1
windowScore1
0.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences39
glossingSentenceCount3
matches
0"seemed reluctant to define"
1"quite breathing but came close enough to make her skin crawl"
2"looked like a single field, a few hundred"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1170
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences71
matches
0"learned that much"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs30
mean39
std36
cv0.923
sampleLengths
059
117
263
38
44
55
6102
713
8100
973
105
1142
1269
133
14100
156
161
173
1831
1953
203
21107
2213
2321
2455
258
263
2797
2843
2963
93.37% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences59
matches
0"was said"
1"being made"
19.82% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs148
matches
0"wasn't quite breathing"
1"were studying"
2"was running"
3"was singing"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount7
semicolonCount0
flaggedSentences7
totalSentences71
ratio0.099
matches
0"That was the first thing — the bone-deep London damp peeled away from her like a wet coat, replaced by warmth that smelled of cut grass and something sweeter beneath it, honeysuckle and crushed thyme and a third scent she had no name for."
1"Wildflowers grew in every direction, a riot of them — foxglove and cornflower, poppies the deep red of arterial blood, white stars she didn't recognise that turned their faces toward her as she passed, the way sunflowers track the sun."
2"But the further in they went the more those edges dissolved, the ordinary oaks giving way to giants — trunks broad as houses, bark silvered and smooth, branches lacing overhead into a canopy that filtered the gold light into shifting coins on the ground."
3"Not the warmth it gave near a Hel portal — this was different, a faint vibration, like the artifact had cocked its head to listen."
4"A spring rose at the centre of it, welling up over pale stones into a pool so clear she could see the coins lying on the bottom — old coins, copper and silver and shapes of gold she didn't recognise, some of them so corroded they'd fused into the rock."
5"But she let her eyes drop, careful, and saw her own reflection looking back — and behind it, deeper, a second face that was hers and not hers, older, crowned, with eyes that held a knowledge her own had never carried."
6"Rory's hand had gone, without her deciding it should, to the cold weight of the moonsilver dagger at her hip — the blade this same woman would, in some tangle of past and future Rory hadn't yet learned to unknot, give her freely."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount500
adjectiveStacks0
stackExamples(empty)
adverbCount19
adverbRatio0.038
lyAdverbCount1
lyAdverbRatio0.002
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences71
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences71
mean16.48
std13.08
cv0.794
sampleLengths
028
131
25
37
45
525
616
722
88
94
105
113
1244
134
1427
1524
1613
1740
1820
1923
202
2115
225
2325
2425
2518
265
2712
2830
298
3045
3116
323
3310
3421
3544
364
3721
386
391
403
4131
4211
4325
4417
453
4626
4750
486
492
85.92% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.5492957746478874
totalSentences71
uniqueOpeners39
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences51
matches
0"Somewhere water was running."
1"Somewhere a bird was singing"
ratio0.039
78.82% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount18
totalSentences51
matches
0"Her breath fogged on the"
1"It didn't on the other."
2"Their voice came as it"
3"She turned in a slow"
4"They opened and closed in"
5"They had taken a more"
6"They were studying the flowers"
7"She kept walking."
8"She pressed her palm flat"
9"She came out from under"
10"she said, and meant it,"
11"They had gone very still."
12"She didn't ask why."
13"She'd learned that much."
14"She stepped back so fast"
15"It came from the far"
16"She stood barefoot in the"
17"She tilted her head, and"
ratio0.353
77.65% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount39
totalSentences51
matches
0"The standing stones rose from"
1"Rory stopped at the threshold"
2"Her breath fogged on the"
3"It didn't on the other."
4"Their voice came as it"
5"Rory snorted and stepped through."
6"The cold vanished."
7"That was the first thing"
8"The light changed too."
9"She turned in a slow"
10"Wildflowers grew in every direction,"
11"They opened and closed in"
12"The grass underfoot was springy"
13"They had taken a more"
14"They were studying the flowers"
15"That landed harder than she"
16"Rory thought of the Golden"
17"The thought felt suddenly thin,"
18"She kept walking."
19"The clearing went deeper than"
ratio0.765
98.04% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences51
matches
0"As if in answer the"
ratio0.02
23.81% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences30
technicalSentenceCount5
matches
0"Rory stopped at the threshold between two of them, one boot in the mud of Richmond Park, the other hovering over grass that should not have been so green in Nov…"
1"That was the first thing — the bone-deep London damp peeled away from her like a wet coat, replaced by warmth that smelled of cut grass and something sweeter be…"
2"But the further in they went the more those edges dissolved, the ordinary oaks giving way to giants — trunks broad as houses, bark silvered and smooth, branches…"
3"As if in answer the Heartstone pendant shifted against her sternum."
4"But she let her eyes drop, careful, and saw her own reflection looking back — and behind it, deeper, a second face that was hers and not hers, older, crowned, w…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags9
uselessAdditionCount0
matches(empty)
63.04% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags7
fancyCount2
fancyTags
0"she whispered (whisper)"
1"Nyx murmured (murmur)"
dialogueSentences23
tagDensity0.304
leniency0.609
rawRatio0.286
effectiveRatio0.174
83.6782%