Run: 2026-06-01-01KT1H8AZC8TEH71MWSGEQ5CE1

Run Details

Model:
Claude Opus 4.8 (Reasoning, Low)
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
39.9s
Cost:
$0.066150
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Adverbs in dialogue tags (details)
95.15% AI-ism adverb frequency (details)
100.00% AI-ism character names (details)
100.00% AI-ism location names (details)
41.80% 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)
75.74% Name drop frequency (details)
95.65% Narrator intent-glossing (details)
3.54% "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)
100.00% Purple prose (modifier overload) (details)
100.00% Repeated phrase echo (details)
100.00% Sentence length variance (details)
82.25% Sentence opener variety (details)
100.00% Adverb-first sentence starts (details)
100.00% Pronoun-first sentence starts (details)
44.75% Subject-first sentence starts (details)
0.00% Subordinate conjunction sentence starts (details)
23.81% Technical jargon density (details)
58.33% Useless dialogue additions (details)
97.37% Dialogue tag variety (said vs. fancy) (details)
80.6130% 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 caught Rory's eye before anything else—seven oaks, but not oaks, their trunks twisted into shapes no tree should hold, bark silvered like old coins. She stopped at the threshold between two of them, and the air changed against her skin. "Tell me you feel that," she said. "I feel it." Nyx flowed beside her, their shadow-form rippling where the light bent strange. "The boundary's thin here. Thinner than the rifts." Eva pushed past them both, then froze three steps in. "Oh." The word hung there. Rory followed her gaze upward and understood why it had emptied her friend's lungs. The sky inside the grove wasn't the grey London afternoon they'd left behind. It held a colour with no name—somewhere between dusk and dawn, lavender bruising into gold at the edges, with stars threaded through it though the sun, or something like a sun, still glowed. Two moons hung low. One pale. One the deep red of arterial blood. "Time moves wrong in here," Nyx said. "Isolde warned us. An hour might be a minute outside. Or a week." "Comforting." Rory stepped fully through. The grass took her weight without sound, and when she lifted her boot, the blades sprang back unbent, no print left behind. She crouched and pressed her palm flat. Cool. Alive. Pulsing faintly, like something breathing beneath the earth. Wildflowers grew everywhere, in colours that hurt to look at directly—petals that shifted hue as she turned her head, blue becoming violet becoming a green that wasn't quite green. Eva reached for one. "Don't," Nyx said. Her hand stopped a finger's width from the bloom. "Why?" "Because we don't know what it does. And neither do you." Eva drew back. "You could've led with that." They moved deeper. The standing stones fell away behind them, and the further in they walked, the more the grove seemed to lean toward them—branches curling overhead like ribs, weaving a tunnel of impossible foliage. Light filtered through in shafts that held drifting motes, too slow to be dust, too bright. When Rory passed her hand through one, warmth bloomed across her fingers and a sound rang in her ears like a struck bell heard underwater. "This place is showing off," she said. "It's old." Nyx's whisper-voice carried a weight she hadn't heard from them before. "Older than the Fae who claimed it. You can feel it in the roots. They remember things that walked here before names existed." Eva laughed, thin and nervous. "And we're just strolling through it." "We were invited. Mostly." The path—if it was a path—opened onto a stream. Water ran uphill over stones that glowed from within, soft and pulsing, the same crimson as the Heartstone resting against Rory's collarbone. She pressed two fingers to the pendant. It had gone warm. Not the steady heat of a Hel portal, but a flutter, like a second heartbeat answering the grove's own. "That's not normal," Eva said, watching it. "None of this is normal." Rory tucked the pendant beneath her shirt. The warmth lingered against her skin. "Keep moving." The stream forced them along its bank. The further they went, the more the silence pressed in—not the absence of sound but a thickness to it, every footfall swallowed, every breath muffled. Then Rory realised it wasn't silence at all. Beneath the quiet ran a low hum, felt more than heard, vibrating up through her boots and into her teeth. "Singing," Eva whispered. "Is that singing?" Nyx had gone still. Their violet eyes flared brighter in the gloom. "Don't follow it. Whatever you hear—it's not for us." "I'm not hearing anything except you being ominous." "Good. Keep it that way." They crested a low rise and the world fell open beneath them. A valley filled the grove's heart, far larger than the space they'd entered should allow, ringed by more of the twisted oaks. Mist pooled in the hollows, silver and slow, parting around shapes that might have been deer, or might have been something wearing the idea of deer. They lifted antlered heads as one, regarding the intruders with eyes that held no animal in them. Then they turned and dissolved into the mist. Eva's hand found Rory's sleeve. "Tell me you saw that." "I saw it." The Fae-forged blade at Rory's hip had grown cold—colder than its usual chill, the moonsilver biting through the leather sheath and into her thigh. She drew it. In the strange double-moonlight the metal woke, luminescent veins running its length, throwing soft light across the three of them. "It's reacting," she said. "To something." "To everything." Nyx drifted closer, their form tightening, solidifying, as if the place demanded they take shape. For the first time since she'd known them, Nyx looked almost human—a tall silhouette gaining edges, a face suggesting itself in the dark. "This is a thin place, Rory. Things bleed through. The blade knows it." They descended into the valley. The mist swallowed their legs to the knee, cool and clinging, and where it touched the blade's glow it recoiled, peeling back to leave a clear circle around them that travelled as they walked. The flowers gave way to stone—a ring of them, low and flat, half-buried, carved with symbols that crawled when Rory tried to read them. She stopped at the largest, brushing moss from its face. "Someone built this." "Someone, or something." Nyx crouched beside her, tracing a symbol without touching it. "This is older than Isolde. Older than the exile. These were cut when the Veil was young." Eva turned slowly, taking in the ring, the mist, the impossible sky. "Why would she send us here? What does she expect us to find?" "Knowing Isolde?" Rory straightened, the cold blade steady in her grip. "Exactly what we're meant to. No more. No less." A wind moved through the valley then, though no branches stirred. It carried a scent—crushed herbs, woodsmoke, something sweet and rotten underneath—and with it that low hum swelled, rising, threading into almost-words. Nyx's hand closed around Rory's wrist, cold and solid and real. "We're not alone," they breathed. "We never were."
created_at"2026-06-01T12:06:37.812Z" 6/1/2026, 12:06:37 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1120
moderation_latency(null)
generation_time39903
tokens_prompt1816
tokens_completion1583
native_tokens_prompt2695
native_tokens_completion2107
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.06615
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_012LX28eZxLTvwtx9djW45k1"
is_byokfalse
latency1120
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-1780315597-tjTdJasHufmHsdCDUthd"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780315597-cDPYE6tq4r8WcPzNEAqd"
upstream_id"msg_012LX28eZxLTvwtx9djW45k1"
total_cost0.06615
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
adverbTagCount1
adverbTags
0"Rory stepped fully [fully]"
dialogueSentences38
tagDensity0.395
leniency0.789
rawRatio0.067
effectiveRatio0.053
95.15% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1031
totalAiIsmAdverbs1
found
0
adverb"slowly"
count1
highlights
0"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)
41.80% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1031
totalAiIsms12
found
0
word"comforting"
count1
1
word"weight"
count2
2
word"warmth"
count2
3
word"whisper"
count1
4
word"silence"
count2
5
word"footfall"
count1
6
word"gloom"
count1
7
word"chill"
count1
8
word"tracing"
count1
highlights
0"comforting"
1"weight"
2"warmth"
3"whisper"
4"silence"
5"footfall"
6"gloom"
7"chill"
8"tracing"
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
narrationSentences69
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount2
narrationSentences69
filterMatches(empty)
hedgeMatches
0"seemed to"
1"tried to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences92
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
totalWords1018
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions15
unquotedAttributions0
matches(empty)
75.74% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions33
wordCount808
uniqueNames7
maxNameDensity1.49
worstName"Rory"
maxWindowNameDensity2
worstWindowName"Rory"
discoveredNames
Rory12
Nyx9
Eva8
London1
Heartstone1
Hel1
Fae-forged1
persons
0"Rory"
1"Nyx"
2"Eva"
places
0"London"
globalScore0.757
windowScore1
95.65% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences46
glossingSentenceCount1
matches
0"something like a sun, still glowed"
3.54% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.965
wordCount1018
matches
0"Not the steady heat of a Hel portal, but a flutter, like a second heartbeat answering the grove's own"
1"not the absence of sound but a thickness to it, every footfall swallowed, every breath mu"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences92
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs40
mean25.45
std22.7
cv0.892
sampleLengths
043
17
223
311
418
559
620
744
833
93
1010
1111
128
1376
147
1536
1611
174
1861
197
2020
2160
226
2321
248
255
2685
2710
283
2947
306
3153
3273
333
3430
3525
3620
3732
3811
398
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences69
matches(empty)
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
emDashCount12
semicolonCount0
flaggedSentences10
totalSentences92
ratio0.109
matches
0"The standing stones caught Rory's eye before anything else—seven oaks, but not oaks, their trunks twisted into shapes no tree should hold, bark silvered like old coins."
1"It held a colour with no name—somewhere between dusk and dawn, lavender bruising into gold at the edges, with stars threaded through it though the sun, or something like a sun, still glowed."
2"Wildflowers grew everywhere, in colours that hurt to look at directly—petals that shifted hue as she turned her head, blue becoming violet becoming a green that wasn't quite green."
3"The standing stones fell away behind them, and the further in they walked, the more the grove seemed to lean toward them—branches curling overhead like ribs, weaving a tunnel of impossible foliage."
4"The path—if it was a path—opened onto a stream."
5"The further they went, the more the silence pressed in—not the absence of sound but a thickness to it, every footfall swallowed, every breath muffled."
6"The Fae-forged blade at Rory's hip had grown cold—colder than its usual chill, the moonsilver biting through the leather sheath and into her thigh."
7"For the first time since she'd known them, Nyx looked almost human—a tall silhouette gaining edges, a face suggesting itself in the dark."
8"The flowers gave way to stone—a ring of them, low and flat, half-buried, carved with symbols that crawled when Rory tried to read them."
9"It carried a scent—crushed herbs, woodsmoke, something sweet and rotten underneath—and with it that low hum swelled, rising, threading into almost-words."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount826
adjectiveStacks0
stackExamples(empty)
adverbCount28
adverbRatio0.03389830508474576
lyAdverbCount4
lyAdverbRatio0.004842615012106538
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences92
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences92
mean11.07
std8.26
cv0.746
sampleLengths
027
116
27
315
48
510
61
74
814
913
1033
114
122
137
147
1513
165
1722
187
191
201
218
2229
234
243
259
261
2711
283
295
303
3132
3216
3325
347
3513
3623
375
386
394
409
4122
427
434
4419
457
4612
476
482
497
82.25% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats6
diversityRatio0.532608695652174
totalSentences92
uniqueOpeners49
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences59
matches
0"Then Rory realised it wasn't"
1"Then they turned and dissolved"
ratio0.034
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount14
totalSentences59
matches
0"She stopped at the threshold"
1"It held a colour with"
2"She crouched and pressed her"
3"Her hand stopped a finger's"
4"They moved deeper."
5"She pressed two fingers to"
6"It had gone warm."
7"Their violet eyes flared brighter"
8"They crested a low rise"
9"They lifted antlered heads as"
10"She drew it."
11"They descended into the valley."
12"She stopped at the largest,"
13"It carried a scent—crushed herbs,"
ratio0.237
44.75% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount49
totalSentences59
matches
0"The standing stones caught Rory's"
1"She stopped at the threshold"
2"Nyx flowed beside her, their"
3"Eva pushed past them both,"
4"The word hung there."
5"Rory followed her gaze upward"
6"The sky inside the grove"
7"It held a colour with"
8"Rory stepped fully through"
9"The grass took her weight"
10"She crouched and pressed her"
11"Wildflowers grew everywhere, in colours"
12"Eva reached for one."
13"Her hand stopped a finger's"
14"Eva drew back."
15"They moved deeper."
16"The standing stones fell away"
17"Light filtered through in shafts"
18"Nyx's whisper-voice carried a weight"
19"Eva laughed, thin and nervous."
ratio0.831
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences59
matches(empty)
ratio0
23.81% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences30
technicalSentenceCount5
matches
0"Wildflowers grew everywhere, in colours that hurt to look at directly—petals that shifted hue as she turned her head, blue becoming violet becoming a green that…"
1"Water ran uphill over stones that glowed from within, soft and pulsing, the same crimson as the Heartstone resting against Rory's collarbone."
2"They lifted antlered heads as one, regarding the intruders with eyes that held no animal in them."
3"The mist swallowed their legs to the knee, cool and clinging, and where it touched the blade's glow it recoiled, peeling back to leave a clear circle around the…"
4"The flowers gave way to stone—a ring of them, low and flat, half-buried, carved with symbols that crawled when Rory tried to read them."
58.33% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags15
uselessAdditionCount2
matches
0"Nyx flowed, their shadow-form rippling where the light bent strange"
1"Rory straightened, the cold blade steady in her grip"
97.37% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags8
fancyCount2
fancyTags
0"Eva whispered (whisper)"
1"they breathed (breathe)"
dialogueSentences38
tagDensity0.211
leniency0.421
rawRatio0.25
effectiveRatio0.105
80.6130%