Run: 2026-05-29-01KSSJJRKE30JMP8AABXQNGDDA

Run Details

Model:
Claude Opus 4.8 (Reasoning)
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
42.1s
Cost:
$0.068925
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Adverbs in dialogue tags (details)
100.00% AI-ism adverb frequency (details)
100.00% AI-ism character names (details)
100.00% AI-ism location names (details)
66.73% AI-ism word frequency (details)
100.00% Cliché density (details)
100.00% Emotion telling (show vs. tell) (details)
99.57% Filter word density (details)
100.00% Gibberish response detection (details)
100.00% Markdown formatting overuse (details)
100.00% Missing dialogue indicators (quotation marks) (details)
64.84% Name drop frequency (details)
100.00% 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)
100.00% Passive voice overuse (details)
100.00% Past progressive (was/were + -ing) overuse (details)
0.00% Em-dash & semicolon overuse (details)
98.68% Purple prose (modifier overload) (details)
100.00% Repeated phrase echo (details)
100.00% Sentence length variance (details)
76.08% Sentence opener variety (details)
100.00% Adverb-first sentence starts (details)
100.00% Pronoun-first sentence starts (details)
58.21% Subject-first sentence starts (details)
0.00% Subordinate conjunction sentence starts (details)
47.62% Technical jargon density (details)
48.08% Useless dialogue additions (details)
89.39% Dialogue tag variety (said vs. fancy) (details)
84.9732% Overall

Model input

System
You are an expert fiction writer. Always keep the following rules in mind: - Write in past tense and use General English spelling, grammar, and colloquialisms/slang. - Write in active voice - Always follow the "show, don't tell" principle. - Avoid adverbs and cliches and overused/commonly used phrases. Aim for fresh and original descriptions. - Convey events and story through dialogue. - Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. - Skip "he/she said said" dialogue tags and convey people's actions or face expressions through their speech - Avoid mushy dialog and descriptions, have dialogue always continue the action, never stall or add unnecessary fluff. Vary the descriptions to not repeat yourself. - Put dialogue on its own paragraph to separate scene and action. - Reduce indicators of uncertainty like "trying" or "maybe" When writing text: - NEVER conclude the scene on your own, follow the beat instructions very closely. - NEVER end with foreshadowing. - NEVER write further than what I prompt you with. - AVOID imagining possible endings, NEVER deviate from the instructions. - STOP EARLY if the continuation contains what was required in the instructions. You do not need to fill out the full amount of words possible.
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <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> Continue the story using the following instructions: <instructions> 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. </instructions>

Model response

AI
The standing stones rose from the bracken like teeth, four of them, each a weathered oak grown into shapes no living tree should hold. Aurora pressed her palm against the nearest one. The bark gave under her fingers, warm and pliant, more flesh than wood. "It breathes," she said. "Everything here breathes." Nyx slid alongside her, their silhouette thinning where the light struck them, then gathering thick again in the shade between two stones. "That's what should worry you." Beyond the boundary, the air changed. Aurora felt it cross her skin like stepping from a cold room into one banked with fire. The October chill of Richmond Park vanished behind them. Ahead, wildflowers spilled across the clearing in colours she had no names for — petals that shaded from violet into something that hurt to look at, blossoms that turned their faces to follow her movement rather than the sun. Eva caught her sleeve. "Rory. The path behind us." She turned. The gap between the stones still showed the ordinary woodland they'd left, the grey light and the wet leaves. But it had shrunk, narrowed to a slit no wider than a doorway, and the trees on the far side stood too still, as though painted. "It's fine," Aurora said. "Isolde told me time runs strange in here. We keep moving, we keep together." "You trust a woman who can't give a straight answer." "I trust that she can't lie to me." Aurora touched the dagger at her hip, the moonsilver cold even through its sheath. Isolde's gift. "That'll have to do." They went deeper. The grass underfoot made no sound, though Aurora watched her own boots crush it flat. When she looked back she saw her footprints filling in, blades rising one by one as if the meadow erased her passage. Nyx left nothing at all, but then Nyx never did. Eva's prints stayed a moment longer, then those too smoothed away. A stream cut across their path, and the water ran uphill. Aurora crouched at its edge. The current climbed a gentle slope toward a stand of birches, silver-trunked, their leaves chiming faintly as the breeze moved through — actual chiming, a sound like small glass bells, high and clean. "Don't drink it," Nyx said. "Whatever you do." "I wasn't going to." "People always think they weren't going to." She dipped two fingers in instead. The water was thick, almost oily, and it clung to her skin in beads that caught the light and held it, glowing faint after she'd lifted her hand free. She wiped it on her jeans. The glow faded slow. Eva had wandered ahead toward the birches, drawn by the bell-sound. "Rory, come look at this." The trees grew in a ring, and inside the ring the ground dropped into a hollow carpeted with moss so deep their feet sank to the ankle. Mushrooms ringed the edge — pale, tall as a hand, glowing the soft blue of a gas flame. And in the centre of the hollow lay bones. Not human. Too long in the limb, the skull narrow and crested, the ribcage a cathedral of curved white. Flowers grew up through the eye sockets and out between the ribs, and from the bones came the faintest hum, a vibration Aurora felt in her teeth more than heard. "What was it?" Eva whispered. "Something old." Nyx had gone still, their violet eyes fixed on the skull. "Older than the grove, maybe. The Fae don't bury their dead. They plant them." Aurora's pendant stirred against her sternum. She drew it out — the Heartstone, deep crimson, and it pulsed against her palm, a slow heartbeat warmth. It had never done that here before. It only woke near the tears in the Veil. "Nyx." She held it up. The crimson glow brightened, dimmed, brightened, keeping time with something she couldn't see. "It's reacting." The Shade drifted closer, and where their shadow fell across the stone the warmth seemed to deepen. "There's a thin place near. The Veil wears through where old power pools." A pause. "Belphegor's mark is on this stone. You know that?" "You've told me." "I'm telling you again, because we're standing in a Fae sanctuary and you're carrying gluttony's gift around your neck like a holiday souvenir." Their voice dropped, the whisper thinning to almost nothing. "Things here will smell it. Some of them remember Dymas. Not fondly." Aurora tucked the pendant away. The warmth pressed through her shirt, insistent now. Eva had crouched at the rim of the bone-hollow, reaching toward one of the blue mushrooms. "These are beautiful. Do you think—" "Don't," Aurora and Nyx said together. Eva froze, hand inches from the cap. As they watched, the mushroom turned. Not the breeze — it pivoted on its stalk, the gills along its underside flaring open like a mouth drawing breath, and the blue glow swelled hungry-bright. Eva yanked her hand back and stumbled away from the ring. "Okay," she breathed. "Okay. Noted. Nothing in the murder garden is friendly." The chiming of the birches had stopped. Aurora noticed it the way you notice a clock you'd stopped hearing — the absence louder than the sound. The whole grove had gone quiet, the flowers gone still, the uphill stream slowing to a glassy stop. Then, from somewhere past the birches, a voice threaded through the trees. It came in riddles, lilting, every syllable shaped like the start of a song. "Three crossed my stones who were not asked, and one of them wears a borrowed heart." Aurora's hand found the dagger again. Beside her, Nyx solidified, edges hardening to something almost like a man, six foot of darkness drawn up between her and the trees. "Isolde," Aurora called. "We came to talk. You knew we would." The wildflowers turned, all of them at once, faces swivelling toward a gap in the birches where the light bent wrong — a shimmer, a distortion, a tall and slender shape stepping out of nothing. "I knew," said the Seer, "that someone would come bleeding gluttony's perfume through my garden. I did not know it would be the delivery girl." Pale lavender eyes moved over the three of them, lingering on Aurora's chest where the pendant warmed. "Come away from the bones, child. They're listening. And what they hear, the Prince hears too."
created_at"2026-05-29T09:55:52.568Z" 5/29/2026, 9:55:52 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2666
moderation_latency(null)
generation_time42075
tokens_prompt1816
tokens_completion1634
native_tokens_prompt2695
native_tokens_completion2218
native_tokens_completion_images(null)
native_tokens_reasoning48
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"
usage0.068925
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01GzGj7D93Hb12tAUCXUu4ud"
is_byokfalse
latency1108
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-1780048552-kNhRHU9E0v31RT4rrP1r"
session_id(null)
api_type"completions"
id"gen-1780048552-FhWLOz5EusKRVovEo3ZC"
upstream_id"msg_01GzGj7D93Hb12tAUCXUu4ud"
total_cost0.068925
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
totalTags13
adverbTagCount1
adverbTags
0"Nyx slid alongside [alongside]"
dialogueSentences33
tagDensity0.394
leniency0.788
rawRatio0.077
effectiveRatio0.061
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1052
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
66.73% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1052
totalAiIsms7
found
0
word"chill"
count1
1
word"pulsed"
count1
2
word"warmth"
count3
3
word"sanctuary"
count1
4
word"whisper"
count1
highlights
0"chill"
1"pulsed"
2"warmth"
3"sanctuary"
4"whisper"
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
narrationSentences66
matches(empty)
99.57% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences66
filterMatches
0"notice"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences85
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen42
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1059
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions12
unquotedAttributions0
matches(empty)
64.84% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions37
wordCount822
uniqueNames12
maxNameDensity1.7
worstName"Aurora"
maxWindowNameDensity2.5
worstWindowName"Aurora"
discoveredNames
Nyx7
October1
Richmond1
Park1
Aurora14
Isolde1
Heartstone1
Veil1
Shade1
Eva7
Seer1
Pale1
persons
0"Nyx"
1"October"
2"Aurora"
3"Isolde"
4"Eva"
places
0"Richmond"
1"Park"
2"Veil"
globalScore0.648
windowScore0.833
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences49
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1059
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences85
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs39
mean27.15
std18.74
cv0.69
sampleLengths
045
14
230
371
49
547
618
710
828
93
1058
1111
1238
138
144
157
1645
1716
1854
1949
205
2127
2241
2320
2441
253
2644
2713
2822
296
3051
3112
3244
3326
3416
3529
3611
3735
3858
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences66
matches(empty)
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs138
matches(empty)
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount7
semicolonCount0
flaggedSentences7
totalSentences85
ratio0.082
matches
0"Ahead, wildflowers spilled across the clearing in colours she had no names for — petals that shaded from violet into something that hurt to look at, blossoms that turned their faces to follow her movement rather than the sun."
1"The current climbed a gentle slope toward a stand of birches, silver-trunked, their leaves chiming faintly as the breeze moved through — actual chiming, a sound like small glass bells, high and clean."
2"Mushrooms ringed the edge — pale, tall as a hand, glowing the soft blue of a gas flame."
3"She drew it out — the Heartstone, deep crimson, and it pulsed against her palm, a slow heartbeat warmth."
4"Not the breeze — it pivoted on its stalk, the gills along its underside flaring open like a mouth drawing breath, and the blue glow swelled hungry-bright."
5"Aurora noticed it the way you notice a clock you'd stopped hearing — the absence louder than the sound."
6"The wildflowers turned, all of them at once, faces swivelling toward a gap in the birches where the light bent wrong — a shimmer, a distortion, a tall and slender shape stepping out of nothing."
98.68% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount819
adjectiveStacks0
stackExamples(empty)
adverbCount34
adverbRatio0.04151404151404151
lyAdverbCount3
lyAdverbRatio0.003663003663003663
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences85
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences85
mean12.46
std9.28
cv0.745
sampleLengths
024
18
213
34
425
55
66
717
89
939
104
115
122
1319
1426
154
1614
1710
1822
192
204
213
2215
2322
2410
2511
2611
275
2833
295
303
314
327
336
3429
356
364
3711
385
3927
4018
419
422
4317
4430
455
4613
4714
486
4919
76.08% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats2
diversityRatio0.47058823529411764
totalSentences85
uniqueOpeners40
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences56
matches
0"Too long in the limb,"
1"Then, from somewhere past the"
ratio0.036
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount9
totalSentences56
matches
0"They went deeper."
1"She dipped two fingers in"
2"She wiped it on her"
3"She drew it out —"
4"It had never done that"
5"It only woke near the"
6"She held it up"
7"Their voice dropped, the whisper"
8"It came in riddles, lilting,"
ratio0.161
58.21% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount45
totalSentences56
matches
0"The standing stones rose from"
1"Aurora pressed her palm against"
2"The bark gave under her"
3"Nyx slid alongside her, their"
4"Aurora felt it cross her"
5"The October chill of Richmond"
6"Eva caught her sleeve."
7"The gap between the stones"
8"Aurora touched the dagger at"
9"They went deeper."
10"The grass underfoot made no"
11"Nyx left nothing at all,"
12"Eva's prints stayed a moment"
13"A stream cut across their"
14"Aurora crouched at its edge."
15"The current climbed a gentle"
16"She dipped two fingers in"
17"The water was thick, almost"
18"She wiped it on her"
19"The glow faded slow."
ratio0.804
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences56
matches(empty)
ratio0
47.62% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences30
technicalSentenceCount4
matches
0"Ahead, wildflowers spilled across the clearing in colours she had no names for — petals that shaded from violet into something that hurt to look at, blossoms th…"
1"But it had shrunk, narrowed to a slit no wider than a doorway, and the trees on the far side stood too still, as though painted."
2"When she looked back she saw her footprints filling in, blades rising one by one as if the meadow erased her passage."
3"The water was thick, almost oily, and it clung to her skin in beads that caught the light and held it, glowing faint after she'd lifted her hand free."
48.08% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags13
uselessAdditionCount2
matches
0"Nyx had, their violet eyes fixed on the skull"
1"Their voice dropped, the whisper thinning to almost nothing"
89.39% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags8
fancyCount2
fancyTags
0"Eva whispered (whisper)"
1"she breathed (breathe)"
dialogueSentences33
tagDensity0.242
leniency0.485
rawRatio0.25
effectiveRatio0.121
84.9732%