Run: 2026-10-09-01M4G103B8Q291V2NN1RAP171T

Run Details

Model:
Claude Haiku 5.5 (Reasoning, Low)
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
13.8s
Cost:
$0.001222
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
100.00% Adverbs in dialogue tags (details)
82.72% AI-ism adverb frequency (details)
100.00% AI-ism character names (details)
100.00% AI-ism location names (details)
65.44% AI-ism word frequency (details)
100.00% Cliché density (details)
100.00% Emotion telling (show vs. tell) (details)
100.00% Filter word density (details)
100.00% Gibberish response detection (details)
100.00% Markdown formatting overuse (details)
100.00% Missing dialogue indicators (quotation marks) (details)
92.36% Name drop frequency (details)
89.02% Narrator intent-glossing (details)
100.00% "Not X but Y" pattern overuse (details)
100.00% Overuse of "that" (subordinate clause padding) (details)
100.00% Paragraph length variance (details)
100.00% Passive voice overuse (details)
75.39% Past progressive (was/were + -ing) overuse (details)
99.57% Em-dash & semicolon overuse (details)
89.94% Purple prose (modifier overload) (details)
100.00% Repeated phrase echo (details)
100.00% Sentence length variance (details)
68.18% Sentence opener variety (details)
100.00% Adverb-first sentence starts (details)
86.67% Pronoun-first sentence starts (details)
95.42% Subject-first sentence starts (details)
100.00% Subordinate conjunction sentence starts (details)
95.24% Technical jargon density (details)
100.00% Useless dialogue additions (details)
97.37% Dialogue tag variety (said vs. fancy) (details)
94.5769% Overall

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 edge of Richmond Park were older than the city's railings, older than the deer that drifted between them in the grey light. Rory counted nine standing stones before she lost count, their lichen-furred faces turned inward like a ring of listeners. Between two of them, the air rippled. It looked like heat over a road in summer, except it was January, and the frost on the bracken hadn't moved in hours. "Don't touch the stones," Isolde said. She walked ahead without a sound, and when Rory glanced down at the frost, the silver-haired woman's path was a clean line of untrodden white. "They remember hands." "Good to know," Rory said. Her breath clouded. The blade at her hip, wrapped in oilcloth, pressed cold against her thigh through the lining of her coat. Even through the cloth she could feel it, a steady chill like a draught from an open window. The Heartstone pendant lay against her sternum, and it was warm. Not hot, just a faint, living warmth, like a coin carried too long in a pocket. She didn't mention that. She had a feeling it would only make Nyx laugh. The shade drifted at the edge of her vision, sliding along the trunks where the lamplight from the distant road failed to reach. Their shape kept folding in on itself, a tall silhouette that became a seam in the dark and then stepped out again, six foot two of poured ink with eyes like banked embers. When they spoke, the voice came from everywhere at once, a whisper carried on wind. "It knows you're here," Nyx said. "The ground is listening. Listen too." Rory did. At first there was only the hush of the wind through the oaks, then something underneath it: a murmur, not words, more like the sound a crowd makes behind a closed door. Thin, sweet notes threaded through it. Somewhere, a bell rang once, very softly. They stepped between the stones. The cold vanished. Not gradually; it simply ceased, as if someone had closed a door on winter. Rory's breath stopped clouding. The frost under her boots gave way to moss so deep and soft it swallowed her footsteps, and she looked down to find the moss studded with wildflowers. Foxgloves, speedwell, the pale star-points of wood anemones, all open and humming with a faint gold light. Bees moved among them, though there should have been no bees in January. "Oh," she breathed, and hated how small her voice sounded. The grove opened around them like the inside of a cathedral built by something that had never heard of straight lines. Trees arched overhead, their trunks silver-barked and braided together, their branches laced into a canopy that let through light from a sky she could not place. It was not the dark of dusk. It was a soft, endless gold, the colour of late afternoon in a painting. There was no sun in it. "Where are we?" she asked. "Where you've always been standing, a little to the left," Isolde said. She had stopped beside a pool so still it reflected the canopy perfectly, and her pale lavender eyes seemed to hold the same light. "The Veil is thinner here than in your city. Thin enough for sight, not thin enough for ease." "That's not an answer." "No. But you asked where, not what." Isolde's mouth curved. "Time here is a courtier. It will not be hurried, and it will not be trusted. You may pass an hour and find London has aged a week around you. Keep your hand on the blade. Its cold is a kind of compass." Rory tugged the oilcloth aside and drew the moonsilver dagger halfway. It was luminous, a faint sheen like moonlight on water, and the cold coming off it was exact and clean. She let the blade slide home again. The pendant at her throat warmed a degree, then another, and she frowned. "It's doing that again," she said. Nyx drifted closer, a ripple of shadow across the moss. The wildflowers bent away from them in a slow, polite wave. "The stone at your breast answers something beneath us," they said. "A door, perhaps. Dymas keeps its doors well oiled, and the heat of its kitchens bleeds through the cracks." "That's not comforting." "It was not meant to be." Rory looked at the pool again. Her reflection stared back at her from the glassy water, black hair and bright blue eyes, the thin crescent scar on her wrist. But the reflection was a half-second late. When she raised her hand, it lifted after her, and for one unsettling beat, the figure in the water looked up at the canopy instead of at her. She stepped back. Isolde was smiling, a small, private smile. "The grove keeps its own counsel," she said. "So do I. Come. The heart of it lies ahead, and the heart always asks more of you than the edges." They walked on, deeper into the gold. Somewhere behind them, a deer lifted its head among the stones and did not follow. Somewhere ahead, the bell rang again, and this time Rory was certain it was calling her name.
created_at"2026-10-09T09:48:05.359Z" 10/9/2026, 9:48:05 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3083
moderation_latency(null)
generation_time13777
tokens_prompt1547
tokens_completion1306
native_tokens_prompt2387
native_tokens_completion1966
native_tokens_completion_images(null)
native_tokens_reasoning338
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"
usage0.0012217
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791539285-hqVuJyUr3F7Q32Lo5XNr"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791539285-xQxvRB5xjbw9z88HKOZO"
upstream_id"msg_011CfrTCWEJDfwyp8wPREM2r"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfrTCWEJDfwyp8wPREM2r"
is_byokfalse
latency740
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0012217
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
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags10
adverbTagCount0
adverbTags(empty)
dialogueSentences19
tagDensity0.526
leniency1
rawRatio0
effectiveRatio0
82.72% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount868
totalAiIsmAdverbs3
found
0
adverb"very"
count1
1
adverb"softly"
count1
2
adverb"perfectly"
count1
highlights
0"very"
1"softly"
2"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)
65.44% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount868
totalAiIsms6
found
0
word"could feel"
count1
1
word"chill"
count1
2
word"warmth"
count1
3
word"whisper"
count1
4
word"footsteps"
count1
5
word"comforting"
count1
highlights
0"could feel"
1"chill"
2"warmth"
3"whisper"
4"footsteps"
5"comforting"
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
narrationSentences57
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount1
narrationSentences57
filterMatches(empty)
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences66
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen43
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords868
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions12
unquotedAttributions0
matches(empty)
92.36% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions20
wordCount694
uniqueNames7
maxNameDensity1.15
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Rory"
discoveredNames
Richmond1
Park1
January2
Rory8
Heartstone1
Nyx3
Isolde4
persons
0"Rory"
1"Nyx"
2"Isolde"
places
0"Richmond"
1"Park"
2"January"
globalScore0.924
windowScore1
89.02% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences41
glossingSentenceCount1
matches
0"looked like heat over a road in summer, e"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount868
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences66
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs24
mean36.17
std27.37
cv0.757
sampleLengths
075
134
272
314
471
512
647
75
879
910
1074
115
1254
134
1453
1551
166
1751
183
196
2064
213
2236
2339
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences57
matches(empty)
75.39% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs107
matches
0"was smiling"
1"was calling"
99.57% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount1
flaggedSentences1
totalSentences66
ratio0.015
matches
0"Not gradually; it simply ceased, as if someone had closed a door on winter."
89.94% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount699
adjectiveStacks0
stackExamples(empty)
adverbCount36
adverbRatio0.05150214592274678
lyAdverbCount6
lyAdverbRatio0.008583690987124463
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences66
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences66
mean13.15
std8.86
cv0.673
sampleLengths
026
119
27
323
46
525
63
75
83
919
1018
1111
1216
134
1410
1523
1633
1715
186
196
202
2132
226
237
245
253
2614
274
2828
2917
3013
3110
3221
3326
347
3514
366
375
3812
3924
4018
414
4210
4343
4411
4520
467
4713
486
4910
68.18% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.45454545454545453
totalSentences66
uniqueOpeners30
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences48
matches
0"Somewhere, a bell rang once,"
1"Somewhere behind them, a deer"
2"Somewhere ahead, the bell rang"
ratio0.063
86.67% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount16
totalSentences48
matches
0"It looked like heat over"
1"She walked ahead without a"
2"Her breath clouded."
3"She didn't mention that."
4"She had a feeling it"
5"Their shape kept folding in"
6"They stepped between the stones."
7"she breathed, and hated how"
8"It was not the dark"
9"It was a soft, endless"
10"She had stopped beside a"
11"It was luminous, a faint"
12"She let the blade slide"
13"Her reflection stared back at"
14"She stepped back."
15"They walked on, deeper into"
ratio0.333
95.42% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount35
totalSentences48
matches
0"The oaks at the edge"
1"Rory counted nine standing stones"
2"It looked like heat over"
3"She walked ahead without a"
4"Her breath clouded."
5"The blade at her hip,"
6"The Heartstone pendant lay against"
7"She didn't mention that."
8"She had a feeling it"
9"The shade drifted at the"
10"Their shape kept folding in"
11"They stepped between the stones."
12"The cold vanished."
13"Rory's breath stopped clouding."
14"The frost under her boots"
15"Foxgloves, speedwell, the pale star-points"
16"Bees moved among them, though"
17"she breathed, and hated how"
18"The grove opened around them"
19"Trees arched overhead, their trunks"
ratio0.729
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences48
matches
0"Even through the cloth she"
ratio0.021
95.24% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences30
technicalSentenceCount2
matches
0"The grove opened around them like the inside of a cathedral built by something that had never heard of straight lines."
1"Trees arched overhead, their trunks silver-barked and braided together, their branches laced into a canopy that let through light from a sky she could not place…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags10
uselessAdditionCount0
matches(empty)
97.37% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags9
fancyCount1
fancyTags
0"she breathed (breathe)"
dialogueSentences19
tagDensity0.474
leniency0.947
rawRatio0.111
effectiveRatio0.105
94.5769%