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Run: 2026-02-17-01KHMR7SQBE5056JPPYJX3YAVD
Run Details
Model:
Claude Opus 4.5
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
51.6s
Cost:
$0.066185
Provider:
Amazon Bedrock
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
Messages
Meta
AI
The standing stones
loomed
out of the morning mist like broken teeth, ancient oaks twisted into shapes that defied the natural grain of wood. Aurora paused at the threshold, her breath clouding in air that had grown
suddenly
cold despite the mild October day behind her. "You're certain this is the place?" she asked, though she already knew the answer. The Heartstone pendant beneath her jacket had begun to pulse with warmth the moment they'd stepped off the main path through Richmond Park, and now it thrummed against her chest like a second heartbeat. Beside her, Nyx shifted, their form rippling between solid and smoke. "The boundary is here." Their voice carried that strange quality it always had—less sound than sensation, like whispers brushing the inside of her skull. "Can you not feel it? The Veil thins at this place. It has for centuries." Aurora could feel something, though she lacked the words to describe it. The air
seemed to
press against her skin with a texture it shouldn't have, and when she looked directly at the space between the twisted oaks, her eyes refused to focus properly. The world
shimmered
there, like heat rising off summer pavement, though the cold had begun to seep through her leather jacket. "I feel it," she said. "I just don't trust it." "Wise." Nyx's violet eyes—the only part of them that held any color—
flickered
with what might have been approval. "The Fae-touched places answer to rules older than human memory. We should proceed with caution." Aurora touched the small crescent scar on her left wrist, an old habit when she needed to ground herself. The childhood wound had long since faded to silver, but the smooth ridge of tissue reminded her of what was real, what was solid, what belonged to her own history rather than the strange new world she'd stumbled into. She stepped forward. The transition happened between one
footfall
and the next. One moment she
was standing
in Richmond Park, dead leaves crunching beneath her boots, the distant sound of dogs barking and children laughing somewhere beyond the trees. The next, silence swallowed everything—not the absence of sound, but rather sound of a different quality entirely. The air itself
seemed to
hum at a frequency just below hearing. Aurora's first breath tasted of honey and growing things, of rain on stone and something else, something wild and green and impossibly old. She blinked, and the grove resolved around her like a photograph developing in real time. Wildflowers carpeted the clearing in waves of color that shouldn't exist together—deep violet pressed against burning orange, soft pink bleeding into electric blue. They b
loomed
in defiance of season, petals unfurling toward a sky that had shifted from London's perpetual gray to a soft,
luminous
gold. Aurora looked up and found no sun, only that gentle amber light diffusing from everywhere and nowhere at once. "Holy shit," she breathed. Nyx materialized fully beside her, their shadow-form pulling tight into something almost human-shaped. Even they seemed affected by this place, their edges sharper, more defined than Aurora had ever seen them. "The grove between worlds," they murmured. "I had heard of such places, but in all my centuries..." They trailed off, which was unusual enough that Aurora glanced over. Nyx's violet eyes had gone wide, fixed on something in the middle distance. Aurora followed their gaze and felt her heart stutter. The trees here weren't oaks anymore—or rather, they were oaks in the same way a cathedral was a collection of stones. They rose impossibly high, their silver-white bark
gleaming
like polished bone, their branches interweaving overhead in patterns that seemed almost deliberate. Geometric. Sacred. Aurora could see faces in the bark if she looked too long, expressions frozen mid-laugh or mid-scream, and she
quickly
learned not to look too long. "Time moves differently here," Nyx said, their voice carrying a warning. "We should find the Seer and leave before the grove decides to keep us." "Before it decides to keep us?" Aurora's hand moved instinctively to the Fae-forged blade at her hip. The moonsilver dagger had been cold against her skin since Isolde had pressed it into her palm three nights ago, but here, in this place, it had begun to warm. "That's comforting. Really puts me at ease." "I did not intend comfort. I intended truth." Aurora snorted despite her unease. "Yeah, I'm getting that." They moved deeper into the grove, following a path that Aurora couldn't quite see but somehow felt beneath her feet—a rightness in some directions, a subtle wrongness in others. The wildflowers parted before them, stems bending away as if pushed by an invisible hand, and Aurora tried not to think about how they straightened again immediately after, closing the way behind them. The deeper they went, the stranger the grove became. She passed a pond whose surface reflected a night sky full of unfamiliar stars, though the golden light still filtered through the canopy above. She heard music—distant, wordless, achingly beautiful—that
seemed to
come from the trees themselves, their silver bark vibrating with harmonics she felt in her bones. At one point, a butterfly the size of her hand landed on her shoulder, its wings patterned with what looked like an eye, and when it blinked at her, Aurora felt her stomach drop. "Don't touch anything," Nyx advised, a beat too late. "Don't accept gifts. Don't make promises. The Fae laws hold power here, even in the Seer's domain." "Would've been nice to know before the creepy butterfly decided I was its new best friend." "It's merely curious. The grove does not see many mortal visitors." Nyx paused, their form flickering. "At least, not many who leave again unchanged." Aurora
was composing
a suitably cutting response when the trees fell away, and she found herself standing at the edge of a clearing within the clearing—a space that felt somehow more real than the dreamscape around it, more grounded, more intentional. Isolde Varga sat at its center. The Seer looked exactly as she had when Aurora met her in a cramped café in Shoreditch three weeks ago—silver hair
cascading
to her waist, pale lavender
eyes that saw
too much, an ageless face that could have belonged to a woman of twenty or two hundred. But here, in her own domain, something was different. Isolde
seemed to
fit this place in a way she hadn't fit the mortal world. She looked complete. Whole. Terrifying. "The Carter girl and the shadow who was once a man." Isolde's voice carried the same melodic quality as the grove itself, words that
seemed to
arrive in Aurora's mind a half-second before she heard them with her ears. "You've come seeking answers, though you haven't yet learned to ask the right questions." Aurora stopped at the edge of the clearing,
suddenly
aware of how solid the boundary felt—not a physical barrier, but something else, something that required permission to cross. "You sent me the pendant," she said. "You gave me the blade. You've been pointing me toward something since the moment we met, but you won't tell me what." "Cannot," Isolde corrected
gently
. "What I cannot say and what I will not say are different
weight
s on different scales." She rose in a single fluid motion, and Aurora
noticed that her
bare feet left no impression in the flowers beneath them. "But I can show you. Come. Both of you. The grove has permitted your entry, which is gift enough." Aurora glanced at Nyx, who inclined their head
slightly
—as close to a shrug as a being of living shadow could manage. She stepped across the threshold. The moment she did, the world shifted again. The golden light deepened to amber, then to something closer to the color of old blood, and Aurora felt the Heartstone pendant flare hot against her chest. She gasped, stumbling, and Isolde caught her elbow with fingers that felt like morning frost. "The pendant knows this place," the Seer said. Her lavender eyes had gone distant, focused on something Aurora couldn't see. "It was forged in Dymas, in the kitchens of the Gluttonous Prince, from the
crystallized
heart of a demon who loved a mortal woman too much and not wisely at all. It calls to its origin. It calls to the Veil's weak points." Her grip tightened. "It calls to you, Aurora Carter, because someone wanted you found. Someone wanted you here. The question you should be asking is not what—it is who." Aurora's mouth had gone dry. "Who gave me the pendant? I don't know. It arrived in my flat with no return address." "The wrong question," Isolde said, and there was something like sorrow in her voice. "Ask who you
truly
are, child. Ask what sleeps in your blood. The answers are coming whether you seek them or not, and the winter solstice approaches." She released Aurora's arm and stepped back, her silver hair catching the amber light like liquid mercury. "The Veil weakens. The rift points multiply. And you—you are the key that fits a lock no mortal should be able to turn." The grove
seemed to
press closer, the silver trees leaning in as if listening. Aurora felt the Fae blade pulse cold at her hip, felt the pendant burn warm against her heart, felt something vast and patient and ancient watching her from the spaces between the flowers, the shadows beneath the branches, the silence that wasn't quite silence. She thought of her father in Cardiff, his barrister's logic and practical hands. She thought of her mother's stories, the Welsh myths she'd dismissed as bedtime fancy. She thought of her own face in the mirror that morning, her bright blue eyes that had never quite
seemed to
belong to either parent. "What am I?" she asked, and her voice came out steadier than she felt. Isolde smiled—not unkindly, but with the
weight
of someone who had seen too many futures to offer false comfort. "That," she said, "is finally the right question."
created_at
"2026-02-17T02:53:49.958471+00:00"
2/17/2026, 2:53:49 AM
model
"anthropic/claude-4.5-opus-20251124"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1611
moderation_latency
177
generation_time
51403
tokens_prompt
1590
tokens_completion
2551
native_tokens_prompt
1757
native_tokens_completion
2296
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.066185
router
(null)
provider_responses
0
id
"0e3ba2ae-2385-4a13-bda6-8a55b74a83b2"
status
200
is_byok
false
latency
1611
endpoint_id
"de32581c-2e11-4f54-8d29-e8a6e19d3038"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-opus-20251124"
api_type
"completions"
id
"gen-1771296777-522kFtFe355j9GEXzkmd"
upstream_id
"0e3ba2ae-2385-4a13-bda6-8a55b74a83b2"
total_cost
0.066185
cache_discount
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upstream_inference_cost
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provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
77.7778%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
12
adverbTagCount
2
adverbTags
0
"Nyx advised, a beat too late [too]"
1
"Isolde corrected gently [gently]"
58.5799%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1690
totalAiIsmAdverbs
7
found
0
adverb
"gently"
count
1
1
adverb
"quickly"
count
1
2
adverb
"slightly"
count
1
3
adverb
"suddenly"
count
2
4
adverb
"really"
count
1
5
adverb
"truly"
count
1
highlights
0
"gently"
1
"quickly"
2
"slightly"
3
"suddenly"
4
"really"
5
"truly"
100.0000%
AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
100.0000%
AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
46.7456%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1690
totalAiIsms
9
found
0
word
"luminous"
count
1
1
word
"flickered"
count
1
2
word
"shimmered"
count
1
3
word
"gleaming"
count
1
4
word
"cascading"
count
1
5
word
"loomed"
count
1
6
word
"crystallized"
count
1
7
word
"weight"
count
1
8
word
"footfall"
count
1
highlights
0
"luminous"
1
"flickered"
2
"shimmered"
3
"gleaming"
4
"cascading"
5
"loomed"
6
"crystallized"
7
"weight"
8
"footfall"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
0
maxInWindow
0
found
(empty)
highlights
(empty)
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
79
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
7
narrationSentences
79
filterMatches
(empty)
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
2
totalSentences
96
matches
0
"eyes that saw"
1
"noticed that her"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
41
mean
40.66
std
25.07
cv
0.616
sampleLengths
0
46
1
48
2
50
3
65
4
10
5
33
6
58
7
3
8
65
9
38
10
65
11
4
12
48
13
24
14
9
15
70
16
25
17
54
18
8
19
9
20
62
21
91
22
26
23
16
24
24
25
41
26
6
27
76
28
53
29
57
30
61
31
21
32
5
33
50
34
92
35
22
36
81
37
58
38
52
39
14
40
27
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
0
totalSentences
79
matches
(empty)
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
2
totalVerbs
203
matches
0
"was standing"
1
"was composing"
92.6833%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1282
adjectiveStacks
0
stackExamples
(empty)
adverbCount
62
adverbRatio
0.0483619344773791
lyAdverbCount
20
lyAdverbRatio
0.015600624024960999
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
96
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
96
mean
17.36
std
11.05
cv
0.636
sampleLengths
0
24
1
22
2
14
3
34
4
11
5
24
6
15
7
12
8
32
9
21
10
5
11
5
12
18
13
15
14
19
15
39
16
3
17
9
18
27
19
17
20
12
21
23
22
15
23
23
24
23
25
19
26
4
27
13
28
18
29
6
30
11
31
11
32
13
33
9
34
21
35
21
36
1
37
1
38
26
39
11
40
14
41
17
42
30
43
7
44
8
45
5
46
4
47
29
48
33
49
9
46.5278%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
12
diversityRatio
0.3541666666666667
totalSentences
96
uniqueOpeners
34
50.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
12
fancyCount
6
fancyTags
0
"she breathed (breathe)"
1
"they murmured (murmur)"
2
"Nyx said, their voice carrying a warning (say, carry)"
3
"Nyx advised, a beat too late (advise)"
4
"Isolde corrected gently (correct gently)"
5
"Isolde said, and there was something like sorrow in her voice (say, be)"
86.6067%