Run: 2026-10-09-01M4FXJT8RJPZ4WSD4FSXBDR4Y

Run Details

Duration:
12.7s
Cost:
$0.001153
Provider:
Claude Platform on AWS

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 oaks at the boundary of Richmond Park were older than any map Rory had ever seen. Their trunks were split and silvered with age, and their branches leaned together overhead like the ribs of a cathedral. She had walked past them a dozen times on the way to the park's deer paths without noticing. Tonight, with the city's glow fading behind her, she noticed everything. "Don't touch the stones," Isolde said, and stepped between two of them without seeming to pass through anything at all. Rory followed. The air changed at the threshold, thickening like the moment before a summer storm, and a faint pressure bloomed behind her ears. Then the sound of traffic on Sheen Road simply stopped, as if someone had closed a door on it. Nyx came last, or rather, Nyx came out of the shadow under the nearest oak. One moment the darkness there was ordinary, and the next a tall shape was unfolding from it, six feet of living night with a faint violet glow where a face should be. When they spoke, their voice was less a sound than a draft through an old window. "The shadows are thin here," they murmured. "Thin as breath on glass. I can hardly hold my own edges." "Then hold on to mine," Rory said, and immediately felt foolish. Nyx's laugh was a soft rustle of leaves that had no leaves to make it. The Heartstone pendant lay warm against her breastbone. She had grown used to its faint pulse near the Hel portals, a heartbeat that quickened when something wrong was close. Now it was steady and slow, almost lazy, like a cat in sunlight. She didn't know whether that was reassuring or worse. The grove opened ahead of them. Wildflowers grew everywhere, in drifts of white and gold and a blue so deep it looked wet. Rory crouched beside a cluster of them and saw that some were budding while others were already dropping petals, all on the same stem. Frost lay on the grass in one patch and, two steps away, a bee drowsed on a bloom in the warm light of a summer afternoon. She stood, and her knees cracked loudly in the stillness. "You're counting," Isolde said without turning around. Her silver hair hung to her waist and caught a light that came from nowhere. "Don't. Here, numbers wander off and get lost." "How long have we been walking?" "Long enough for the moon to change her mind about her shape," Isolde said. "Or not long at all. The grove keeps its own clock, and it is a clock that likes to sulk." Rory looked back for the gap in the oaks. It was still there, a hard-edged rectangle of dark park beyond. But when she glanced at her phone it showed no signal and a time that made no sense: the same minute, over and over, as if the numbers had been pressed into the glass. She slipped it into her pocket and didn't mention it. They came to a pool. It was perfectly round and perfectly still, and the stars were reflected in it, though the sky above was overcast. Rory knelt at the edge. Her own face looked back, pale and steady, with the thin crescent scar on her wrist showing where her sleeve had pulled back. Then the reflection blinked a half-second after she did. She stood up quickly. Nyx had drifted to the far bank and was watching the water with a stillness that was almost reverent. "I remember a place like this," they said softly. "Not here. A place where the light was younger. Before I was made into shadow, I was a man who believed I could bargain with things like this pool." "What happened?" "I was given exactly what I asked for," Nyx said, and nothing more. The path climbed through a stand of birch whose leaves were the colour of old brass. At the top, the grove opened into a clearing ringed by stones taller than a man, each one carved with spirals that seemed to shift when Rory didn't look straight at them. Between the stones the air hummed, a note just below hearing that she felt in her teeth. Isolde stopped. For the first time since they'd entered, she seemed uncertain. "Here," she said. "Here the Veil is thinnest. You can feel it, the way you feel a draught from a door you cannot see." Rory could. Her breath came shallow. The pendant had begun, very faintly, to brighten. "Is that a warning?" she asked. Isolde tilted her head, and her pale lavender eyes held hers. "I cannot lie to you, Aurora Carter. But I can choose which truths to set before you, like fruit on a plate. Ask me a better question." Rory's fingers found the hilt at her hip, the Fae blade cold through its sheath even in the warm air. Moonsilver never warmed. She drew a slow breath and stepped forward into the ring of stones, where the hum rose to meet her and the grove, for one long heartbeat, seemed to listen.
created_at"2026-10-09T08:48:24.351Z" 10/9/2026, 8:48:24 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency12630
moderation_latency(null)
generation_time12631
tokens_prompt1547
tokens_completion1256
native_tokens_prompt2387
native_tokens_completion1828
native_tokens_completion_images(null)
native_tokens_reasoning251
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"
usage0.0011527
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791535704-SzVzjnlFUguO26hyyuI0"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791535704-FEeQhpMlV4mgkQSrh2CS"
upstream_id"msg_011CfrNeXvtNwpUKMGtHi3t3"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfrNeXvtNwpUKMGtHi3t3"
is_byokfalse
latency747
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0011527
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
88.89% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags9
adverbTagCount1
adverbTags
0"they said softly [softly]"
dialogueSentences17
tagDensity0.529
leniency1
rawRatio0.111
effectiveRatio0.111
70.76% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount855
totalAiIsmAdverbs5
found
0
adverb"perfectly"
count2
1
adverb"quickly"
count1
2
adverb"softly"
count1
3
adverb"very"
count1
highlights
0"perfectly"
1"quickly"
2"softly"
3"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)
88.30% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount855
totalAiIsms2
found
0
word"pulse"
count1
1
word"quickened"
count1
highlights
0"pulse"
1"quickened"
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
narrationSentences53
matches(empty)
88.95% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount2
narrationSentences53
filterMatches(empty)
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences61
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen34
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords855
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions11
unquotedAttributions0
matches(empty)
84.11% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions26
wordCount683
uniqueNames10
maxNameDensity1.32
worstName"Rory"
maxWindowNameDensity2
worstWindowName"Rory"
discoveredNames
Richmond1
Park1
Rory9
Sheen1
Road1
Nyx5
Heartstone1
Hel1
Isolde5
Fae1
persons
0"Rory"
1"Nyx"
2"Isolde"
places
0"Richmond"
1"Park"
2"Sheen"
3"Road"
4"Hel"
globalScore0.841
windowScore1
18.42% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences38
glossingSentenceCount2
matches
0"spirals that seemed to shift when Rory didn't look straight at them"
1"seemed uncertain"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount855
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences61
matches
0"saw that some"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs21
mean40.71
std24.51
cv0.602
sampleLengths
066
120
243
382
426
551
683
730
86
934
1064
1162
1261
132
1413
1565
1636
1714
186
1938
2053
92.02% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences53
matches
0"been pressed"
1"were reflected"
18.18% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs110
matches
0"were budding"
1"were already dropping"
2"was watching"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences61
ratio0
matches(empty)
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount685
adjectiveStacks1
stackExamples
0"lay warm against her"
adverbCount25
adverbRatio0.0364963503649635
lyAdverbCount8
lyAdverbRatio0.01167883211678832
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences61
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences61
mean14.02
std8.33
cv0.595
sampleLengths
017
120
218
311
420
52
622
719
815
932
1016
117
1212
1311
1415
158
1621
1713
189
196
2017
2124
2226
2310
247
2515
268
276
2814
2920
309
3111
3234
3310
345
3520
365
3723
389
394
4019
419
4229
432
4413
4516
4632
4717
482
4910
85.79% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats1
diversityRatio0.5245901639344263
totalSentences61
uniqueOpeners32
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences46
matches
0"Then the sound of traffic"
1"Then the reflection blinked a"
ratio0.043
89.57% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount15
totalSentences46
matches
0"Their trunks were split and"
1"She had walked past them"
2"She had grown used to"
3"She didn't know whether that"
4"She stood, and her knees"
5"Her silver hair hung to"
6"It was still there, a"
7"She slipped it into her"
8"They came to a pool."
9"It was perfectly round and"
10"Her own face looked back,"
11"She stood up quickly."
12"they said softly"
13"Her breath came shallow."
14"She drew a slow breath"
ratio0.326
57.83% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount37
totalSentences46
matches
0"The oaks at the boundary"
1"Their trunks were split and"
2"She had walked past them"
3"Tonight, with the city's glow"
4"Isolde said, and stepped between"
5"The air changed at the"
6"Nyx came last, or rather,"
7"Rory said, and immediately felt"
8"Nyx's laugh was a soft"
9"The Heartstone pendant lay warm"
10"She had grown used to"
11"She didn't know whether that"
12"The grove opened ahead of"
13"Wildflowers grew everywhere, in drifts"
14"Rory crouched beside a cluster"
15"Frost lay on the grass"
16"She stood, and her knees"
17"Isolde said without turning around"
18"Her silver hair hung to"
19"Rory looked back for the"
ratio0.804
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences46
matches
0"Now it was steady and"
ratio0.022
96.77% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences31
technicalSentenceCount2
matches
0"She had grown used to its faint pulse near the Hel portals, a heartbeat that quickened when something wrong was close."
1"Nyx had drifted to the far bank and was watching the water with a stillness that was almost reverent."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags9
uselessAdditionCount0
matches(empty)
94.44% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags9
fancyCount1
fancyTags
0"they murmured (murmur)"
dialogueSentences17
tagDensity0.529
leniency1
rawRatio0.111
effectiveRatio0.111
88.9348%