Run: 2026-10-09-01M4FXSG8GYPG9N5HKSKT2HP4Z

Run Details

Model:
Claude Haiku 5.5 (Reasoning, Low)
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
15.5s
Cost:
$0.001348
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
0.00% Adverbs in dialogue tags (details)
80.69% AI-ism adverb frequency (details)
100.00% AI-ism character names (details)
100.00% AI-ism location names (details)
61.39% AI-ism word frequency (details)
100.00% Cliché density (details)
100.00% Emotion telling (show vs. tell) (details)
68.97% Filter word density (details)
100.00% Gibberish response detection (details)
100.00% Markdown formatting overuse (details)
100.00% Missing dialogue indicators (quotation marks) (details)
78.48% Name drop frequency (details)
0.00% 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)
87.11% Passive voice overuse (details)
0.00% Past progressive (was/were + -ing) overuse (details)
100.00% Em-dash & semicolon overuse (details)
99.86% Purple prose (modifier overload) (details)
100.00% Repeated phrase echo (details)
100.00% Sentence length variance (details)
75.46% Sentence opener variety (details)
68.03% Adverb-first sentence starts (details)
100.00% Pronoun-first sentence starts (details)
41.63% Subject-first sentence starts (details)
100.00% Subordinate conjunction sentence starts (details)
100.00% Technical jargon density (details)
48.08% Useless dialogue additions (details)
78.57% Dialogue tag variety (said vs. fancy) (details)
79.6093% 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 standing stones rose out of the bracken like the ribs of something very old and very patient. Aurora counted nine of them before she stopped counting, because the number kept changing each time she looked back over her shoulder. "Don't do that," said Nyx, from somewhere to her left. The voice came the way wind moves through a half-open window, soft and hard to place. "The stones don't like to be tallied." "I wasn't tallying. I was checking we hadn't lost anyone." "Then you may stop. We are all here." Nyx's shape stretched across the grass, a long silhouette cast by no light she could see. The sun hung over Richmond Park, pale and watery, yet the shadow stayed where it was even as the sun slid behind a cloud. Nyx's violet eyes flickered in the dark patch of their body, two faint embers. Their form was solid enough to cast a shadow and insubstantial enough that Aurora had once watched them slide through a closed door like smoke through a keyhole. Isolde walked ahead without a sound. That was the first thing that unsettled Aurora, though she had been warned. The grass should have bent under the Seer's bare feet. It did not. Where Isolde stepped, the blades stood straight again before her heel lifted, and the silver of her hair, falling past her waist, caught no sunlight at all yet still seemed to glow. "Mind the threshold," Isolde said, without turning. Her voice was low and musical, pitched to carry further than it should. "The grass is not grass until you have crossed it. Walk as you would walk into a church, if you have ever been in one, and if you have not, walk as you would into a stranger's kitchen." "That's not a real instruction," Aurora said. "Every instruction is real to the one who must follow it." Isolde glanced back, pale lavender eyes catching hers. "You will want to know what I mean. You will not like the answer. Come." Aurora came. She had told herself on the Tube that she would not be frightened, that fear was a kind of information and she could file it away and deal with it later. Now, passing between the second and third stones, she felt the air change. It did not grow colder or warmer. It grew thicker, as though she were pushing through water that had decided to be polite about it. Her ears popped. Then the sound of the city dropped away, the distant hum of the A307, the dog walkers, the wind in the oaks, all of it gone at once, and the silence that replaced it had weight. The pendant at her throat warmed against her breastbone. Aurora put a hand to it through her jumper. The Heartstone was usually cool, a small crimson weight on its silver chain. Now it pulsed, faint and steady, like a second heartbeat. "Is that the Hel warmth?" she asked quietly. "It is a memory of Dymas," Isolde said. "Your stone remembers a kitchen that burns forever. It is not yet near a door. Be glad." "That's not an answer." "It is the answer I am permitted to give, and it is true. Whether it is the answer you need is another matter." They reached the clearing. Wildflowers covered the ground in a carpet so thick it seemed woven: foxglove and campion, harebells and cranesbill, blooms she could not name in colours that did not quite belong to any palette she knew. Some petals looked like brushed silver. Others held a faint internal light, the way a candle shows through thin paper. The air smelled of crushed thyme and rain that had not yet fallen, and beneath it, faint and sweet, of something she associated with the back of her father's study, old leather and cold tea and paper. "It's summer here," Aurora said, and was surprised by how small her voice sounded. "It's January in London." "Here it is always the season that has not yet been ruined," said Isolde. "Here the flowers do not know that they are supposed to die." Nyx drifted to the edge of the clearing and folded into the shade beneath an ancient oak. Their shape pooled there like spilled ink, and Aurora heard them murmur something in a language with no vowels. The shade where they lay grew deeper, impossibly deep, until she could no longer tell where the tree ended and the dark began. "Nyx? Are you all right?" "I am listening," they whispered. "The roots are speaking to the dead. There are many dead here. They are not unhappy. They are simply still." Aurora swallowed. Her left wrist ached, the way it did when weather was coming, the small crescent scar pulling tight. She rubbed it absently and noticed her watch had stopped. The second hand hovered at a single point, frozen mid-tick. She tapped the glass. Nothing. "Time moves differently in the Grove," Isolde said gently, as if reading her face. "An hour may pass here and you will return to find that you have been gone for a day, or three minutes, or not at all. Do not count the hours. The Grove will only resent you." "Brilliant," Aurora muttered. At the centre of the clearing stood a single stone, taller than the rest, its surface etched with spirals that seemed to shift when she looked directly at them. Something had been carved into its base: a small hollow the shape of a hand. Beside it, the grass lay flattened in the outline of a woman's bare footprint, though Isolde had not stepped there and was standing now on the far side of the clearing without a mark on the earth beneath her. Aurora's hand went to the hilt at her hip. The Fae blade was cold through her coat, always cold, the moonsilver humming faintly against her palm. In the dappled light, its leaf-shaped blade gleamed with a pale luminescence, as if it recognised the place and was waiting. "Isolde," she said slowly. "Whose footprint is that?" The Seer smiled, and for a moment her face was impossibly old and impossibly young at once. "Yours," she said. "Though not yet."
created_at"2026-10-09T08:52:03.478Z" 10/9/2026, 8:52:03 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2768
moderation_latency(null)
generation_time15436
tokens_prompt1547
tokens_completion1634
native_tokens_prompt2387
native_tokens_completion2219
native_tokens_completion_images(null)
native_tokens_reasoning292
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"
usage0.0013482
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791535923-PVnu7UKPZRg0PAdcA3zA"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791535923-srfpYcG5H2zQdIGo1anI"
upstream_id"msg_011CfrNvgdTU2q4MK2roUyo3"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfrNvgdTU2q4MK2roUyo3"
is_byokfalse
latency764
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0013482
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
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags13
adverbTagCount4
adverbTags
0"Isolde glanced back [back]"
1"she asked quietly [quietly]"
2"Isolde said gently [gently]"
3"she said slowly [slowly]"
dialogueSentences28
tagDensity0.464
leniency0.929
rawRatio0.308
effectiveRatio0.286
80.69% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1036
totalAiIsmAdverbs4
found
0
adverb"very"
count2
1
adverb"gently"
count1
2
adverb"slowly"
count1
highlights
0"very"
1"gently"
2"slowly"
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)
61.39% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1036
totalAiIsms8
found
0
word"flickered"
count1
1
word"unsettled"
count1
2
word"silence"
count1
3
word"weight"
count2
4
word"pulsed"
count1
5
word"warmth"
count1
6
word"etched"
count1
highlights
0"flickered"
1"unsettled"
2"silence"
3"weight"
4"pulsed"
5"warmth"
6"etched"
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
emotionTells1
narrationSentences58
matches
0"was surprised"
68.97% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount2
narrationSentences58
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences72
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen39
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1036
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions13
unquotedAttributions0
matches(empty)
78.48% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions30
wordCount769
uniqueNames9
maxNameDensity1.43
worstName"Aurora"
maxWindowNameDensity2
worstWindowName"Aurora"
discoveredNames
Nyx4
Richmond1
Park1
Aurora11
Seer2
Isolde8
Tube1
Heartstone1
Fae1
persons
0"Nyx"
1"Aurora"
2"Seer"
3"Isolde"
places
0"Richmond"
1"Park"
globalScore0.785
windowScore1
0.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences42
glossingSentenceCount4
matches
0"not quite belong to any palette she knew"
1"seemed woven foxglove and campion, harebells and cranesbill, blooms she could not name in colours that did not quite belong to any palette she knew"
2"looked like brushed silver"
3"as if reading her face"
4"spirals that seemed to shift when she looked directly at them"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1036
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences72
matches
0"frightened, that fear"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs29
mean35.72
std29.53
cv0.827
sampleLengths
040
133
210
390
464
558
67
734
8110
941
108
1125
124
1323
144
1592
1618
1726
1859
195
2025
2145
2251
233
2483
2547
268
2717
286
87.11% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences58
matches
0"been warned"
1"was surprised"
2"been carved"
0.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs133
matches
0"were pushing"
1"was coming"
2"was standing"
3"was waiting"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences72
ratio0
matches(empty)
99.86% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount772
adjectiveStacks0
stackExamples(empty)
adverbCount31
adverbRatio0.04015544041450777
lyAdverbCount10
lyAdverbRatio0.012953367875647668
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences72
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences72
mean14.39
std10.04
cv0.698
sampleLengths
018
122
210
316
47
510
624
724
814
928
106
1113
1210
133
1432
157
1613
1738
187
1919
2015
212
2231
2313
247
2518
263
2736
289
299
3013
3110
328
338
3417
354
3623
374
3835
396
4014
4137
4214
434
4414
4512
4617
4719
4823
495
75.46% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.4861111111111111
totalSentences72
uniqueOpeners35
68.03% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences49
matches
0"Then the sound of the"
ratio0.02
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount14
totalSentences49
matches
0"Their form was solid enough"
1"It did not."
2"Her voice was low and"
3"She had told herself on"
4"It did not grow colder"
5"It grew thicker, as though"
6"Her ears popped."
7"she asked quietly"
8"They reached the clearing."
9"Their shape pooled there like"
10"Her left wrist ached, the"
11"She rubbed it absently and"
12"She tapped the glass."
13"she said slowly"
ratio0.286
41.63% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount41
totalSentences49
matches
0"The standing stones rose out"
1"Aurora counted nine of them"
2"The voice came the way"
3"Nyx's shape stretched across the"
4"The sun hung over Richmond"
5"Nyx's violet eyes flickered in"
6"Their form was solid enough"
7"Isolde walked ahead without a"
8"That was the first thing"
9"The grass should have bent"
10"It did not."
11"Isolde said, without turning"
12"Her voice was low and"
13"Isolde glanced back, pale lavender"
14"She had told herself on"
15"It did not grow colder"
16"It grew thicker, as though"
17"Her ears popped."
18"The pendant at her throat"
19"Aurora put a hand to"
ratio0.837
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences49
matches
0"Now, passing between the second"
1"Now it pulsed, faint and"
ratio0.041
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences31
technicalSentenceCount1
matches
0"In the dappled light, its leaf-shaped blade gleamed with a pale luminescence, as if it recognised the place and was waiting."
48.08% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags13
uselessAdditionCount2
matches
0"Isolde said, without turning"
1"Isolde said gently, as if reading her face"
78.57% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags11
fancyCount2
fancyTags
0"they whispered (whisper)"
1"Aurora muttered (mutter)"
dialogueSentences28
tagDensity0.393
leniency0.786
rawRatio0.182
effectiveRatio0.143
79.6093%