Run: 2026-06-01-01KT1HRAE1FXMQSV2HT6TKBZQP

Run Details

Duration:
44.4s
Cost:
$0.071650
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 out of the bracken like the teeth of some sleeping animal, and Aurora stopped just short of touching the nearest one. She had walked Richmond Park before — on grey Sunday mornings when London felt too loud, when the flat above Silas' bar still smelled of last night's spilled whisky and she needed somewhere green. She had never seen these. Seven oaks, though calling them oaks felt like calling the sea a puddle. They had grown into pillars, bark fused and pale as bone, their crowns woven together overhead into an arch that swallowed the daylight whole. "They're warm," she said. Her fingertips hovered an inch from the stone-wood. Heat radiated off it, gentle as a banked fire. "They remember the sun." Isolde stepped between two of the trunks without slowing, and the air around her shimmered, folding like cloth pulled through a ring. "Most things here remember something." Aurora glanced down. The seer left no prints in the soft loam, while her own boots sank and stamped a clear trail behind her. Behind her, the third of their party made no sound at all, but she felt Nyx there the way she felt a draft beneath a door — a coolness at her back, the prickle of being watched by something that had no body to watch with. "After you," Nyx murmured. The voice came from everywhere and nowhere, a whisper threaded through the leaves. Aurora crossed the boundary. The change struck her like stepping off a curb she hadn't seen. The damp London cold peeled away. The traffic-hum that underscored everything in the city — she hadn't even known it was there until it stopped — fell utterly silent, and into that silence rushed birdsong she could not name and the low, sweet hush of wind through grass. The light changed too. It came from no sun. It hung in the air itself, a soft gold suspended like dust, so that everything she looked at seemed to glow faintly from within. "Oh," she said, and felt stupid for saying it, and could not help it. The clearing opened before them in a bowl of impossible green. Wildflowers grew everywhere, thick and reckless — bluebells beside poppies beside things she had no word for, blossoms shaped like trumpets that drank the light and gave it back deeper, petals that turned, slowly, to follow her as she passed. They had no business blooming together. Bluebells died in May. Poppies came in June. Here they crowded the same stem, every season at once, as though time had forgotten to sort them. "It's June out there," she said. "How are there—" "You're not out there anymore." Isolde drifted ahead, her silver hair lifting in a breeze Aurora couldn't feel. "The Grove keeps its own hours. An afternoon here might be a heartbeat to the world beyond the stones. Or it might be a fortnight. The Grove decides. It does not consult me." Aurora reached up and touched the pendant at her throat — the Heartstone, a habit she'd formed without noticing, thumb finding the crimson gem whenever something pricked at her nerves. It lay cool and quiet against her sternum. No pulse, no warmth. No Hel portal here, then. Whatever this place was, it did not open onto fire. That should have been a comfort. Somehow it wasn't. She followed Isolde down into the bowl, and the deeper they went, the stranger the silence underneath the birdsong became. There was a watchfulness to it. The flowers turning, the trees leaning — she had the distinct, crawling sense that the Grove was aware of her, the way a room goes still when a stranger enters and everyone pretends not to look. "Don't eat anything," Isolde said, conversational. "Don't drink. Don't take a flower, even a fallen one, even if it asks you to." "Asks me to." "They sometimes do." The seer smiled, and it was a kind smile, which made it worse. "And don't thank me. For anything, while we're inside. Gratitude is a debt here, and debts are collected." Behind her, Aurora felt Nyx draw closer, the cold of them sliding up to her shoulder. "She's not exaggerating," the Shade breathed. "I have walked a great many places that are not meant for the living. This one has manners, and the manners have teeth." "Comforting. Both of you. Truly." They came to the heart of the clearing, where a spring welled up from a cleft in pale rock and spilled into a pool so clear it looked like a window cut into the earth. Aurora crouched at its edge. Below the surface, far below — too far, the pool could not be that deep — she saw stars. Not a reflection. The water held its own sky, vast and turning, constellations she did not recognize wheeling slowly in the dark. The unease in her chest tightened to a fist. "What is that?" she whispered. "A door that isn't open." Isolde knelt opposite her, and where the seer's reflection should have been there was only the wheeling dark. "The Veil is thin in places like this. Stretched. You're looking through it now, at the spaces between realms. Most mortals never see it. You have the pendant, and you've stood close to the fire too often — it's changed your eyes a little." Aurora pulled back from the edge. "I didn't ask for that." "No," Isolde agreed. "We rarely ask for the things that find us." A sound moved through the trees — not wind this time, but something with intention. A low chime, like glass touched gently, repeated and repeated, drawing nearer. The flowers stopped turning toward Aurora. They turned, all at once, toward the sound, and the gold light in the air seemed to dim and gather, leaning the same way. Nyx solidified beside her in a single fluid pour of shadow, six feet of darkness given edges, violet eyes kindling in the place a face would be. They did not reach for a weapon. They simply stood between Aurora and the trees. "Isolde," Nyx said, very quietly. "Is that the thing we came to see?" The seer rose, and for the first time the smile was gone from her ancient face. "No," she said. "That came to see us. Stay close, and remember — you owe this place nothing. Whatever it offers." Aurora's hand found the cold hilt at her hip, the Fae blade Isolde had pressed on her a week ago with a warning she hadn't understood until now. The moonsilver hummed faintly under her palm, eager, and somewhere beyond the trees the chiming drew its breath and went still. The Grove waited. So did she.
created_at"2026-06-01T12:15:21.543Z" 6/1/2026, 12:15:21 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3807
moderation_latency(null)
generation_time44349
tokens_prompt1590
tokens_completion1702
native_tokens_prompt2385
native_tokens_completion2389
native_tokens_completion_images(null)
native_tokens_reasoning71
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"
usage0.07165
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_019rkf5XeAAGkgPH9rx6ShTf"
is_byokfalse
latency1199
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-1780316121-h9lbtcq6ZCu2O6o3F04O"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780316121-VFXTaPsE3BxxK0ggR10f"
upstream_id"msg_019rkf5XeAAGkgPH9rx6ShTf"
total_cost0.07165
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
totalTags15
adverbTagCount0
adverbTags(empty)
dialogueSentences27
tagDensity0.556
leniency1
rawRatio0
effectiveRatio0
72.92% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1108
totalAiIsmAdverbs6
found
0
adverb"utterly"
count1
1
adverb"slowly"
count2
2
adverb"truly"
count1
3
adverb"gently"
count1
4
adverb"very"
count1
highlights
0"utterly"
1"slowly"
2"truly"
3"gently"
4"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)
68.41% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1108
totalAiIsms7
found
0
word"shimmered"
count1
1
word"whisper"
count1
2
word"silence"
count2
3
word"pulse"
count1
4
word"warmth"
count1
5
word"comforting"
count1
highlights
0"shimmered"
1"whisper"
2"silence"
3"pulse"
4"warmth"
5"comforting"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"hung in the air"
count1
highlights
0"hung in the air"
100.00% 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
hedgeCount2
narrationSentences68
filterMatches(empty)
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences81
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen45
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1120
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions15
unquotedAttributions0
matches(empty)
87.36% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions36
wordCount878
uniqueNames14
maxNameDensity1.25
worstName"Aurora"
maxWindowNameDensity2
worstWindowName"Aurora"
discoveredNames
Aurora11
Richmond1
Park1
Sunday1
London2
Nyx5
May1
June1
Isolde7
Heartstone1
Hel1
Grove2
Shade1
Fae1
persons
0"Aurora"
1"Nyx"
2"Isolde"
3"Grove"
4"Shade"
places
0"Richmond"
1"Park"
2"London"
3"May"
4"June"
globalScore0.874
windowScore1
38.89% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences45
glossingSentenceCount2
matches
0"felt like calling the sea a puddle"
1"looked like a window cut into the earth"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.893
wordCount1120
matches
0"not wind this time, but something with intention"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences81
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs33
mean33.94
std26.98
cv0.795
sampleLengths
025
176
221
331
470
517
64
793
814
983
109
1151
1257
139
1462
1522
163
1734
1845
195
2081
219
225
2367
2411
2512
2657
2742
2813
2916
3021
3149
326
94.94% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences68
matches
0"being watched"
1"was gone"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs151
matches(empty)
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount10
semicolonCount0
flaggedSentences8
totalSentences81
ratio0.099
matches
0"She had walked Richmond Park before — on grey Sunday mornings when London felt too loud, when the flat above Silas' bar still smelled of last night's spilled whisky and she needed somewhere green."
1"Behind her, the third of their party made no sound at all, but she felt Nyx there the way she felt a draft beneath a door — a coolness at her back, the prickle of being watched by something that had no body to watch with."
2"The traffic-hum that underscored everything in the city — she hadn't even known it was there until it stopped — fell utterly silent, and into that silence rushed birdsong she could not name and the low, sweet hush of wind through grass."
3"Wildflowers grew everywhere, thick and reckless — bluebells beside poppies beside things she had no word for, blossoms shaped like trumpets that drank the light and gave it back deeper, petals that turned, slowly, to follow her as she passed."
4"Aurora reached up and touched the pendant at her throat — the Heartstone, a habit she'd formed without noticing, thumb finding the crimson gem whenever something pricked at her nerves."
5"The flowers turning, the trees leaning — she had the distinct, crawling sense that the Grove was aware of her, the way a room goes still when a stranger enters and everyone pretends not to look."
6"Below the surface, far below — too far, the pool could not be that deep — she saw stars."
7"A sound moved through the trees — not wind this time, but something with intention."
91.25% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount220
adjectiveStacks0
stackExamples(empty)
adverbCount11
adverbRatio0.05
lyAdverbCount1
lyAdverbRatio0.004545454545454545
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences81
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences81
mean13.83
std11.15
cv0.807
sampleLengths
025
134
25
313
424
54
68
79
826
95
103
1121
1246
134
1413
154
1612
176
1842
194
205
2124
2214
2311
2440
256
264
274
2818
296
303
3118
3233
3330
348
354
365
3710
386
393
4020
416
4236
436
4416
453
4616
4718
4816
496
61.32% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats12
diversityRatio0.4567901234567901
totalSentences81
uniqueOpeners37
53.76% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences62
matches
0"Somehow it wasn't."
ratio0.016
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount14
totalSentences62
matches
0"She had walked Richmond Park"
1"She had never seen these."
2"They had grown into pillars,"
3"Her fingertips hovered an inch"
4"It came from no sun."
5"It hung in the air"
6"she said, and felt stupid"
7"They had no business blooming"
8"It lay cool and quiet"
9"She followed Isolde down into"
10"They came to the heart"
11"They turned, all at once,"
12"They did not reach for"
13"They simply stood between Aurora"
ratio0.226
40.65% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount52
totalSentences62
matches
0"The standing stones rose out"
1"She had walked Richmond Park"
2"She had never seen these."
3"They had grown into pillars,"
4"Her fingertips hovered an inch"
5"Heat radiated off it, gentle"
6"Isolde stepped between two of"
7"Aurora glanced down."
8"The seer left no prints"
9"The voice came from everywhere"
10"Aurora crossed the boundary."
11"The change struck her like"
12"The damp London cold peeled"
13"The traffic-hum that underscored everything"
14"The light changed too."
15"It came from no sun."
16"It hung in the air"
17"she said, and felt stupid"
18"The clearing opened before them"
19"Wildflowers grew everywhere, thick and"
ratio0.839
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences62
matches(empty)
ratio0
63.49% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences27
technicalSentenceCount3
matches
0"They had grown into pillars, bark fused and pale as bone, their crowns woven together overhead into an arch that swallowed the daylight whole."
1"The traffic-hum that underscored everything in the city — she hadn't even known it was there until it stopped — fell utterly silent, and into that silence rushe…"
2"Wildflowers grew everywhere, thick and reckless — bluebells beside poppies beside things she had no word for, blossoms shaped like trumpets that drank the light…"
91.67% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags15
uselessAdditionCount1
matches
0"Isolde said, conversational"
1.85% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags10
fancyCount4
fancyTags
0"Nyx murmured (murmur)"
1"the Shade breathed (breathe)"
2"she whispered (whisper)"
3"Isolde agreed (agree)"
dialogueSentences27
tagDensity0.37
leniency0.741
rawRatio0.4
effectiveRatio0.296
78.8837%