Run: 2026-05-29-01KSSJZ6G4W7YPGNNRGJRV4MCT

Run Details

Duration:
46.1s
Cost:
$0.073800
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 fog like teeth. Rory had walked Richmond Park a dozen times since fleeing to London, always on the wide gravel paths where joggers passed in bright lycra and deer lifted their heads to watch. But this was a part of the park that wasn't on any map she'd ever seen, a fold of land tucked behind a hedge that hadn't been there an hour ago. The oaks here were old in a way the others weren't — gnarled, immense, their bark furrowed deep enough to lose a hand in. Three of them stood in a rough arc, leaning toward one another like conspirators, and between them the air shimmered. "That's it," Rory said. Her breath ghosted out in front of her, though the afternoon had been warm. "That's the distortion." Beside her, Nyx was a column of darkness against the grey light, their edges restless, never quite holding still. "You see it now," they said, and the words arrived less as sound than as a draft against her ear, a whisper carried on wind that wasn't blowing. "Good. The Heartstone is opening your eyes. Most mortals walk past this place their whole lives and feel only a chill." Rory's hand went, without her deciding it, to the pendant at her throat. The crimson stone sat warm against her sternum, pulsing in a slow rhythm that didn't match her heartbeat. It had been quiet for days. Now it throbbed like something waking. The third member of their group had stopped a few paces back. Eva — practical, fierce Eva, who'd dragged Rory out of Cardiff and into a new life with nothing but a duffel bag and a phone full of train times — stood with her arms crossed tight over her chest, staring at the stones. "I don't like this," Eva said. "Rory. I really don't like this." "You don't have to come in." "And let you go alone with—" Eva flicked her eyes toward Nyx and didn't finish. She'd been doing that a lot since the shadow had first peeled itself off the wall of Silas's bar three nights ago. "No. No, I'm coming. Just say it out loud, so it's on the record. I don't like this." "Noted," Rory said, and stepped between the stones. The change was instant and total. It was like surfacing from underwater — a pressure she hadn't known she was carrying simply lifted off her skull, and the world bloomed into colour. The fog was gone. So was the grey London afternoon. She stood at the edge of a clearing bathed in light that came from no sun she could find; it fell soft and golden and seemed to rise as much from the grass as descend from the sky. And the grass — it wasn't grass. It was a carpet of wildflowers, thousands of them, blue and white and a violet so deep it bordered on black, all of them blooming at once though some part of Rory's brain insisted it was October and nothing should be flowering. Their scent rolled over her, sweet and heavy and faintly intoxicating, like wine left too long in the sun. "Oh," Eva breathed, coming through behind her. The hostility had dropped clean out of her voice. "Oh, my God." A stream cut across the far side of the clearing, and its water didn't sound like water. It chimed. Each tumble over stone rang out clear and bell-like, a melody that almost resolved into something Rory recognised before slipping sideways into strangeness. Insects — or things shaped roughly like insects — drifted above the flowers on wings of glass, throwing tiny rainbows wherever the light caught them. Rory looked back the way they'd come. The standing stones were still there, but through the gap between them she saw not the fog of Richmond Park but a darkness studded with distant points of light, as if the doorway opened onto deep evening rather than afternoon. "Time runs strange here," Nyx murmured. They had gone solid, or nearly — a tall figure of smoke-dark substance, their violet eyes the only constant in a body that drank the golden light without reflecting it. "An hour in this place might be a minute outside. Or a week. Tread carefully with how long you linger, Aurora Carter. The Grove is generous, and generosity is its own kind of trap." Rory filed that away with everything else she was learning to be afraid of. She started across the clearing, and the wildflowers parted before her feet and closed again behind her. She noticed, with a small cold prickle, that Nyx left no track at all — but neither, when she glanced back, did the air itself seem disturbed where they'd passed. Even Eva's footprints filled and vanished within a breath, the flowers springing upright as though no weight had ever touched them. "Hello?" Rory called. Her voice didn't echo. It simply stopped, swallowed by the soft golden hush. "Isolde? We were told you'd see us." For a long moment, nothing. The glass-winged things hummed. The stream chimed its almost-song. Then a woman was standing by the water who had not been there an instant before. She was small, slighter than Rory, with silver hair that fell past her waist and stirred in a wind none of them could feel. Her eyes were pale lavender, the colour of the deepest flowers underfoot, and they fixed on Rory with the patient attention of something very old looking at something very brief. She wore no shoes. The flowers beneath her feet stood perfectly undisturbed. "Three came to the door," the woman said, "but only two are alive, and only one was invited." Her gaze drifted to Nyx and a faint smile touched her lips. "Hello, Aldric. Still wearing the dark you stitched yourself into. Three hundred years and you have not learned to take it off." Nyx went very still. "That name died a long time ago." "Names don't die," Isolde said. "They only go quiet. Like rivers under ice." She turned back to Rory, and the weight of those eyes settled on her like a hand. "You carry Dymasian fire against your heart, child. Do you know who gave it to you? No. You don't. That is the question that brought you to my door, though you came dressed it up as another." Rory's mouth had gone dry. The pendant pulsed, hot now, almost scalding. "I came," she said carefully, "because something is hunting me, and Nyx said you'd know why." "I know many things." Isolde tilted her head, and the wildflowers leaned toward her like an audience. "I cannot tell you a single lie — it isn't in me — but I would not trust me too far, all the same. The truth and the whole of it are seldom the same shape." She lifted one pale hand and beckoned, and behind her the chiming stream parted around a flat grey stone like an altar. "Come. Sit. Drink nothing, eat nothing, however sweet it smells, and we will see what the water shows us." Eva caught Rory's sleeve. "Rory," she whispered. "I really, really don't like this." "Noted," Rory said again, softer this time, and walked toward the seer.
created_at"2026-05-29T10:02:40.312Z" 5/29/2026, 10:02:40 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
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cancelledfalse
latency5470
moderation_latency(null)
generation_time45783
tokens_prompt1590
tokens_completion1824
native_tokens_prompt2385
native_tokens_completion2475
native_tokens_completion_images(null)
native_tokens_reasoning93
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"
usage0.0738
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provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01PasjegtgwABDEjfUTRhwyQ"
is_byokfalse
latency2294
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-1780048960-2gmP1mXNyzxiuf3aEDd4"
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api_type"completions"
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upstream_id"msg_01PasjegtgwABDEjfUTRhwyQ"
total_cost0.0738
cache_discount(null)
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provider_name"Anthropic"
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Evaluation details

Result Evaluator Details Meta Data
12.50% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags16
adverbTagCount3
adverbTags
0"She turned back [back]"
1"she said carefully [carefully]"
2"Rory said again [again]"
dialogueSentences29
tagDensity0.552
leniency1
rawRatio0.188
effectiveRatio0.188
62.56% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1202
totalAiIsmAdverbs9
found
0
adverb"really"
count3
1
adverb"carefully"
count2
2
adverb"very"
count3
3
adverb"perfectly"
count1
highlights
0"really"
1"carefully"
2"very"
3"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)
50.08% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1202
totalAiIsms12
found
0
word"furrowed"
count1
1
word"shimmered"
count1
2
word"whisper"
count1
3
word"chill"
count1
4
word"throbbed"
count1
5
word"flicked"
count1
6
word"resolved"
count1
7
word"weight"
count2
8
word"echo"
count1
9
word"could feel"
count1
10
word"pulsed"
count1
highlights
0"furrowed"
1"shimmered"
2"whisper"
3"chill"
4"throbbed"
5"flicked"
6"resolved"
7"weight"
8"echo"
9"could feel"
10"pulsed"
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
narrationSentences64
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount1
narrationSentences64
filterMatches(empty)
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences77
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen56
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1213
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions15
unquotedAttributions0
matches(empty)
63.04% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions40
wordCount920
uniqueNames10
maxNameDensity1.74
worstName"Rory"
maxWindowNameDensity3
worstWindowName"Rory"
discoveredNames
Richmond2
Park2
London2
Nyx6
Rory16
Eva7
Cardiff1
Silas1
October1
Isolde2
persons
0"Nyx"
1"Rory"
2"Eva"
3"Silas"
4"Isolde"
places
0"Richmond"
1"Park"
2"London"
3"Cardiff"
globalScore0.63
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences47
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.824
wordCount1213
matches
0"not the fog of Richmond Park but a darkness studded with distant points of light, as if the d"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences77
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs28
mean43.32
std31.48
cv0.727
sampleLengths
010
1106
221
368
443
555
612
76
855
98
1032
11116
1219
1367
1447
1570
1682
1723
1814
1916
2066
2152
2211
2367
2428
2594
2613
2712
99.78% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences64
matches
0"was gone"
0.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount5
totalVerbs157
matches
0"wasn't blowing"
1"was like surfacing"
2"was carrying"
3"was learning"
4"was standing"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount9
semicolonCount1
flaggedSentences8
totalSentences77
ratio0.104
matches
0"The oaks here were old in a way the others weren't — gnarled, immense, their bark furrowed deep enough to lose a hand in."
1"Eva — practical, fierce Eva, who'd dragged Rory out of Cardiff and into a new life with nothing but a duffel bag and a phone full of train times — stood with her arms crossed tight over her chest, staring at the stones."
2"It was like surfacing from underwater — a pressure she hadn't known she was carrying simply lifted off her skull, and the world bloomed into colour."
3"She stood at the edge of a clearing bathed in light that came from no sun she could find; it fell soft and golden and seemed to rise as much from the grass as descend from the sky."
4"And the grass — it wasn't grass."
5"Insects — or things shaped roughly like insects — drifted above the flowers on wings of glass, throwing tiny rainbows wherever the light caught them."
6"They had gone solid, or nearly — a tall figure of smoke-dark substance, their violet eyes the only constant in a body that drank the golden light without reflecting it."
7"She noticed, with a small cold prickle, that Nyx left no track at all — but neither, when she glanced back, did the air itself seem disturbed where they'd passed."
95.79% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount915
adjectiveStacks0
stackExamples(empty)
adverbCount41
adverbRatio0.04480874316939891
lyAdverbCount8
lyAdverbRatio0.008743169398907104
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences77
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences77
mean15.75
std11.98
cv0.76
sampleLengths
010
131
231
324
420
54
614
73
819
928
1021
1113
1218
136
146
1512
1643
176
186
196
2015
2122
2218
238
246
2526
264
276
2838
297
3042
3119
327
339
343
3517
362
3723
3825
397
4040
416
4230
4334
4414
4517
4630
4721
483
494
68.40% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.44155844155844154
totalSentences77
uniqueOpeners34
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences57
matches
0"Even Eva's footprints filled and"
1"Then a woman was standing"
ratio0.035
86.67% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount19
totalSentences57
matches
0"Her breath ghosted out in"
1"they said, and the words"
2"It had been quiet for"
3"She'd been doing that a"
4"It was like surfacing from"
5"She stood at the edge"
6"It was a carpet of"
7"Their scent rolled over her,"
8"They had gone solid, or"
9"She started across the clearing,"
10"She noticed, with a small"
11"Her voice didn't echo."
12"It simply stopped, swallowed by"
13"She was small, slighter than"
14"Her eyes were pale lavender,"
15"She wore no shoes."
16"She turned back to Rory,"
17"she said carefully"
18"She lifted one pale hand"
ratio0.333
38.95% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount48
totalSentences57
matches
0"The standing stones came out"
1"Rory had walked Richmond Park"
2"The oaks here were old"
3"Her breath ghosted out in"
4"they said, and the words"
5"Rory's hand went, without her"
6"The crimson stone sat warm"
7"It had been quiet for"
8"The third member of their"
9"Eva — practical, fierce Eva,"
10"Eva flicked her eyes toward"
11"She'd been doing that a"
12"Rory said, and stepped between"
13"The change was instant and"
14"It was like surfacing from"
15"The fog was gone."
16"She stood at the edge"
17"It was a carpet of"
18"Their scent rolled over her,"
19"Eva breathed, coming through behind"
ratio0.842
87.72% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences57
matches
0"Now it throbbed like something"
ratio0.018
40.82% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences28
technicalSentenceCount4
matches
0"The crimson stone sat warm against her sternum, pulsing in a slow rhythm that didn't match her heartbeat."
1"Eva — practical, fierce Eva, who'd dragged Rory out of Cardiff and into a new life with nothing but a duffel bag and a phone full of train times — stood with he…"
2"The standing stones were still there, but through the gap between them she saw not the fog of Richmond Park but a darkness studded with distant points of light,…"
3"They had gone solid, or nearly — a tall figure of smoke-dark substance, their violet eyes the only constant in a body that drank the golden light without reflec…"
62.50% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags16
uselessAdditionCount2
matches
0"they said, and the words arrived less as sound than as a draft against her ear, a whisper carried on wind that wasn't blowing"
1"Isolde tilted, and the wildflowers leaned toward her like an audience"
46.55% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags12
fancyCount3
fancyTags
0"Eva breathed (breathe)"
1"Nyx murmured (murmur)"
2"she whispered (whisper)"
dialogueSentences29
tagDensity0.414
leniency0.828
rawRatio0.25
effectiveRatio0.207
77.1787%