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Run: 2026-02-17-01KHMQM3MSYVGG9ZTEK4RD8PPG
Run Details
Model:
Claude Opus 4.6
Test:
Bad Writing Habits
Scenario:
Horror: alone in an eerie place at night
Duration:
1m 7s
Cost:
$0.068045
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> <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> </codex> Write a fully fleshed out scene of at least 1000 words in the horror genre. A character is alone in a strange, isolated place at night. They came here for a reason, but something feels off from the moment they arrive. The wrongness builds slowly — sounds that shouldn't be there, things that move at the edge of vision, a growing certainty that they are not alone. Build tension through restraint, not through gore. Use the codex entries above as your world reference for the character and setting. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
The last bus had dropped Rory at the Richmond Park gate just after eleven. She'd had to climb the fence, which
was locked
for the night, the iron cold enough to sting her palms even through her gloves. The park str
etched
before her in a vast dark emptiness, the kind of dark that London wasn't supposed to have — no streetlamps, no glow from shop fronts, nothing but the faint smear of clouds over a half-moon. She knew the way. That was the unsettling part. She'd only been to the grove once before, in daylight, with Isolde guiding her, and yet her feet found the path through the grass as if they'd walked it a thousand times. Left past the copse of hornbeams. Down the slope where the ground went soft. Through the gap between two fallen oaks that smelled of wet rot and something older, something like incense left burning in an empty room. The Heartstone pendant was warm against her sternum. Not the usual faint warmth it sometimes gave off, like a coin held too long in a closed fist. This was deliberate. A slow, rhythmic pulse, as steady as a second heartbeat pressed against her own. She touched it through her jacket. The crimson stone gave off no visible glow tonight — or if it did, the fabric hid it. She kept walking. The standing stones appeared the way they always did:
suddenly
, as though they'd stepped forward to meet her. Ancient oaks, dead for centuries but still upright, their bark turned to something closer toite than wood. They formed an imperfect ring in a clearing that shouldn't have existed in any park survey. Wildflowers grew between them, pale and
luminous
, blooming in January as easily as June. Snowdrops and foxglove side by side, which was botanically impossible, but the grove had never much cared about botany. Rory stopped at the boundary. The air was different here — thicker, sweeter, carrying a faint vibration she could feel in her back teeth. She'd
been told
once that the grove existed in a pocket between worlds, a fold in the fabric where Earth and the Fae realm pressed against each other like two pages of a closed book. Standing here, she could believe it. The moonlight fell differently inside the ring. It pooled rather than scattered, gathering in the spaces between the stones as if something
were holding
it there. She was alone. She was certain of that. She stepped inside. The sound changed immediately. The distant hum of the M3 motorway, which she hadn't consciously registered until it vanished, cut off as cleanly as a door slamming shut. In its place: silence. Not the comfortable silence of a quiet room, but the pressurized silence of deep water. Her ears adjusted
slowly
, and she
began to
pick up smaller sounds — the creak of the standing stones, the whisper of the wildflowers shifting in a wind she couldn't feel. And something else. Something underneath those sounds, barely there, like a radio tuned to a frequency just below the range of hearing. A low, continuous tone that
seemed to
come from the ground itself. Rory crouched and pressed her palm flat against the earth. It was warm. Warmer than it should have been. And the pendant pulsed harder, quick and urgent now, the way a heart rate climbs before something terrible. She pulled her hand back and wiped it on her jeans. A faint residue clung to her fingertips — dark,
slightly
viscous. She couldn't see the color in the moonlight, but she could smell it. Copper and something sweeter. Not blood. Not quite. "Right," she said aloud. Her voice sounded wrong. Flat. As if the grove had swallowed the
echo
before it could form. "Okay." She'd come here because of the message. Three words scratched into the counter of the Golden Empress that afternoon, carved into the lacquered wood with something sharp while Yu-Fei's back was turned and nobody in the restaurant saw a thing: THE GROVE. MIDNIGHT. The handwriting was no one's she recognized. She should have ignored it. She should have shown it to someone, anyone. Instead she'd photographed it on her phone, and when she checked the photo later, the words weren't there. Just the unmarked counter, as if the message had
been meant
for her eyes alone. Stupid. Reckless. She could hear Brendan Carter's barrister voice in her head, cross-examining her decisions. And what,
precisely
, compelled you to enter an isolated supernatural location alone at midnight based on an anonymous summons? She didn't have a good answer. Only the feeling that had been sitting in her chest all day, heavy and insistent, that this was something she could not afford to miss. The standing stones creaked again. Not all of them — just the one directly behind her. She turned
slowly
. It looked the same as it had a moment ago. Tall, dark, the petrified bark
etched
with grooves that might have been natural and might have been something else entirely. She stared at it for a long time. The moonlight pooled around its base. Something moved. Not the stone. Not anything she could point to. It was movement at the periphery, the kind that vanished the instant she
tried to
focus on it. A shift in the quality of shadow between two of the far stones, as if a piece of the darkness had rearranged itself. She turned toward it. Nothing. The wildflowers swayed
gently
, uniformly, in their unfelt wind. Rory exhaled through her nose. She made herself stand still and count to ten, the way she'd learned to do in the months after Evan — when panic was a beast that lived in her ribcage and came out at the sound of a raised voice or a closed door. One. Two. Three. The grove was quiet. Four. Five. The pendant pulsed. Six. Seven. On eight, something breathed. She heard it clearly. A single, slow exhalation, close enough that she should have felt it on the back of her neck. She spun, hands up, the crescent scar on her left wrist catching moonlight as her sleeve rode up. The clearing was empty. E
very
stone accounted for. E
very
shadow where it should be. But the flowers at her feet had changed. Where she'd been standing, in a rough circle the size of her own body, the wildflowers had turned to face her. E
very
bloom, e
very
stem, oriented inward like the petals of a closing fist. She stepped back and watched them track her movement. They tilted as she moved, slow and deliberate, the way sunflowers follow the sun. Only there was no sun. And they
were following
her. The low tone beneath the ground shifted upward, climbing through frequencies she could now feel in her jawbone, in her teeth, in the fine bones of her inner ear. She reached for the pendant and closed her fingers around it. The silver chain bit cold into the back of her neck, but the stone itself was almost hot — a deep, insistent heat, the crimson gem pulsing so fast now that the individual beats blurred together into a continuous thrum. She should leave. She knew she should leave. The stones were right there, the boundary only ten paces in any direction, and the rational part of her mind — the part that had survived Evan, survived the flight to London, survived e
very
terrible thing by knowing when to run —
was screaming
at her to move. She didn't move. Because the shadows between the two farthest stones had thickened into something that was no longer shadow. It had depth. It had texture. It
hung in the air
like smoke, but smoke didn't behave like this — it didn't hold its shape, didn't coalesce with such slow, purposeful intent into a form that was almost, almost recognizable. A silhouette. Tall. Motionless. Watching her from across the clearing with an attention she could feel like a hand pressed flat against her chest. The wildflowers around the silhouette had gone still. Not just still — rigid. Frozen in mid-sway as if time had stopped for them and nothing else. Rory's mouth had gone dry. She swallowed twice before she could speak. "I got your message," she said. Her voice came out steadier than she felt. "I'm here. So say what you came to say." The silence str
etched
. The figure did not move. Did not breathe. Did not do anything at all except exist there, in the space between the stones, darker than the darkness around it. Then the ground beneath Rory's feet exhaled. It rose — a subtle swelling, as if the earth had taken a breath and held it, and now the topsoil shifted under her boots and the wildflowers shuddered and the standing stones gave a collective groan so deep she felt it in her spine. The pendant flared. Not just warmth now but genuine heat, burning through her shirt, and when she looked down she could see it — a faint crimson glow seeping through the fabric, painting her jacket in the color of old blood. Near a Hel portal. The pendant pulsed like this near a Hel portal. She'd
been told
that. She'd filed it away as information she wouldn't need, because Hel portals were rare, were guarded, were not supposed to open in hidden groves in the middle of Richmond bloody Park. She looked up. The silhouette had moved. Not closer — it was simply in a different place now, three stones to the left, without any indication that it had crossed the intervening space. It stood with the same dreadful stillness, a cutout in the world, a place where light refused to go. And now there were others. Not many. Two more, perhaps three — it was hard to tell where shadow ended and figure began. They occupied the spaces between the stones like sentries, evenly spaced around the ring, and Rory realized with a cold, plummeting certainty that they were not between her and the boundary. They were the boundary. They had positioned themselves at e
very
gap, e
very
exit, e
very
place where she might have slipped through and run. The earth settled. The heat from the pendant dropped to a steady, warning pulse. The low tone faded to a hum. And in the silence that followed, Rory Carter stood
very
still in the center of a ring of ancient stones, surrounded by wildflowers that watched her with their blind pale faces, and she understood two things clearly. The first
was that whatever
had summoned her here had not done so to talk. The second
was that time
in the grove moved differently — an hour inside could be minutes or days outside — and no one knew she was here, and no one
was coming
, and midnight had passed into something older and darker, and the figures at the boundary had all the time in any world. She reached up and pulled the pendant free from her collar. The Heartstone sat in her palm, thumbnail-sized, crimson, pulsing with its own terrible light. She closed her fingers around it and felt the heat climb into her wrist, her forearm, her shoulder, settling behind her ribs like a coal. "Okay," she said quietly, to herself, to whatever
was listening
. "Okay." The figures did not move. The flowers watched. The grove held its breath and waited for what would come next.
created_at
"2026-02-17T02:43:20.607469+00:00"
2/17/2026, 2:43:20 AM
model
"anthropic/claude-4.6-opus-20260205"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1381
moderation_latency
177
generation_time
67095
tokens_prompt
812
tokens_completion
2772
native_tokens_prompt
839
native_tokens_completion
2554
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
0.068045
router
(null)
provider_responses
0
id
"5bae6960-6d7f-4a19-934a-0e37c5058751"
status
200
is_byok
false
latency
1381
endpoint_id
"a8708fb9-08ea-43bb-a3b1-165c87ef09df"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.6-opus-20260205"
api_type
"completions"
id
"gen-1771296132-mZYw6zWJjQfW8IWTbN5z"
upstream_id
"5bae6960-6d7f-4a19-934a-0e37c5058751"
total_cost
0.068045
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
22.2222%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
3
adverbTagCount
1
adverbTags
0
"she said quietly, to herself, to whatever was listening [quietly]"
63.0021%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1892
totalAiIsmAdverbs
7
found
0
adverb
"gently"
count
1
1
adverb
"precisely"
count
1
2
adverb
"slightly"
count
1
3
adverb
"slowly"
count
2
4
adverb
"suddenly"
count
1
5
adverb
"very"
count
1
highlights
0
"gently"
1
"precisely"
2
"slightly"
3
"slowly"
4
"suddenly"
5
"very"
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)
84.1438%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1892
totalAiIsms
3
found
0
word
"luminous"
count
1
1
word
"echo"
count
1
2
word
"etched"
count
1
highlights
0
"luminous"
1
"echo"
2
"etched"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"hung in the air"
count
1
highlights
0
"hung in the air"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
163
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
3
narrationSentences
163
filterMatches
(empty)
hedgeMatches
0
"began to"
1
"seemed to"
2
"tried to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
2
totalSentences
166
matches
0
"was that whatever"
1
"was that time"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
41
mean
46.46
std
30.04
cv
0.646
sampleLengths
0
76
1
79
2
44
3
27
4
84
5
91
6
8
7
3
8
78
9
34
10
37
11
43
12
22
13
96
14
65
15
63
16
2
17
64
18
64
19
4
20
54
21
65
22
10
23
80
24
56
25
3
26
81
27
26
28
35
29
32
30
7
31
86
32
48
33
52
34
5
35
72
36
21
37
107
38
50
39
11
40
20
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
4
totalSentences
163
matches
0
"was locked"
1
"been told"
2
"been meant"
3
"been told"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
5
totalVerbs
299
matches
0
"were holding"
1
"were following"
2
"was screaming"
3
"was coming"
4
"was listening"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1875
adjectiveStacks
0
stackExamples
(empty)
adverbCount
65
adverbRatio
0.034666666666666665
lyAdverbCount
26
lyAdverbRatio
0.013866666666666666
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
166
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
166
mean
11.48
std
10.93
cv
0.952
sampleLengths
0
14
1
24
2
38
3
4
4
5
5
32
6
6
7
8
8
24
9
8
10
19
11
3
12
14
13
6
14
18
15
3
16
18
17
17
18
16
19
14
20
19
21
5
22
19
23
35
24
6
25
7
26
19
27
3
28
5
29
3
30
4
31
24
32
4
33
15
34
31
35
3
36
19
37
12
38
10
39
3
40
6
41
18
42
11
43
11
44
13
45
4
46
2
47
2
48
4
49
4
39.9598%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
22
diversityRatio
0.3192771084337349
totalSentences
166
uniqueOpeners
53
91.6667%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
3
fancyCount
1
fancyTags
0
"she said quietly, to herself, to whatever was listening (say quietly, listen)"
88.2938%