Run: 2026-02-17-01KHMQSEBDSJ8QGNVRX7CFZV2P

Run Details

Duration:
11.5s
Cost:
$0.000602
Provider:
OpenAI

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="4416" name="Detective Harlow Quinn" aliases="Quinn, Detective Quinn, Harlow" pronouns="she/her" species="Human" storyRole="Antagonist"> <eyeColor>brown</eyeColor> <hair>closely cropped salt-and-pepper</hair> <height>5'9"</height> <age>41</age> <jawline>sharp jaw</jawline> <watch>worn leather watch on her left wrist</watch> <bearing>military precision</bearing> <description>A Metropolitan Police detective with 18 years of decorated service who suspects the clique is involved in criminal activity.</description> <backstory>She lost her partner, DS Morris, during a case three years ago under unexplained circumstances that had supernatural origins she doesn't yet understand.</backstory> </character> <character id="4414" name="Eva Kowalski" aliases="Eva, Evie" pronouns="she/her" species="Human" storyRole="Best Friend"> <eyeColor>green</eyeColor> <hair>curly red</hair> <height>5'4"</height> <age>26</age> <glasses>round glasses</glasses> <satchel>worn leather satchel full of books</satchel> <freckles>freckled complexion</freckles> <nervousHabit>tucking hair behind her left ear</nervousHabit> <description>Aurora's childhood friend and an occult researcher.</description> <backstory>Moved to London two years before Aurora and works as a research assistant at the British Museum's restricted archives. She holds a master's degree in Ancient History from Oxford.</backstory> </character> <location id="856" name="The Veil Market" aliases="Veil Market, the Market, underground market" realm="Earth"> <currentLocation>abandoned Tube station beneath Camden</currentLocation> <entryRequirement>bone token</entryRequirement> <schedule>moves locations every full moon</schedule> <description>A hidden supernatural black market that sells enchanted goods, banned alchemical substances, and information.</description> </location> <item id="2004" name="Veil Compass" aliases="the Compass, shadow compass" type="Tool" origin="The Veil Market"> <casingMaterial>small brass compass</casingMaterial> <faceMarkings>face etched with protective sigils</faceMarkings> <needle>points toward the nearest supernatural rift or portal</needle> <patina>casing has a patina of verdigris</patina> <creator>crafted by a Shade artisan</creator> <description>A compass attuned to supernatural energy.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the mystery genre. A detective arrives at a crime scene in an unusual location. Something is wrong — the evidence doesn't add up. A colleague is present, offering a different interpretation. Through careful observation and deduction, the detective begins to see what others have missed. Use the codex entries above as your world reference for characters and setting. Only include the prose of the scene without any markdown or commentary.

Model response

AI
The rain was relentless, hammering down in stiff sheets that blurred the city’s flickering neon and dim streetlamps into smeared streaks. Detective Harlow Quinn parked her battered Ford just outside what looked like an abandoned tube station, its dark entrance yawning like a maw into the earth. A security barrier, flimsy but functional, blocked the door, and an uneven glow of flickering candles seeped from beneath the rusted grate. The scent of damp concrete and something sharper—perhaps old blood or something else—hung in the air. Harlow stepped out into the drizzle, her sharp jaw clenched tight. She adjusted her worn leather watch on her wrist as she approached, her boots splashing on the uneven pavement. Peering through the fence, her eyes locked onto the scene inside: a small perimeter had been established by uniformed officers, but their hurried, distracted presence suggested they didn’t quite know what they were looking at. Behind her, a voice called out: “Quinn. Over here.” She turned sharply, her brown eyes narrowing as she found her colleague, Detective Mark Sullivan, leaning against a battered metal railing, flipping through a battered notepad. “You’re late,” Sullivan said, voice low, with that familiar tone of nervous excitement. “No cameras, no witnesses. Looks like some kind of... ritual.” Harlow’s gaze swept the scene again. A makeshift altar lay in the center—a toppled crate covered in black cloth, candles scattered across the floor, some still smoldering. Near the altar, a circle of strange symbols, hastily drawn, had been etched into the concrete with what looked like chalk, or maybe ash. There was no sign of forced entry, no obvious signs of violence apart from the streaks of dried blood that spattered the ground. She crouched slightly, inspecting the symbols. They didn’t match anything she’d seen in the file cabinets or her past cases. Not simple graffiti, not gang markings. Still, they had a certain… energy. A pulse that made her skin crawl. She glanced at Sullivan. “No sign of a struggle? No personal effects?” He shook his head. “Nothing. No wallet, no phone, no obvious identification. Just this stuff. It’s almost as if… someone wanted us to find it, or maybe not even us.” Harlow’s gaze flicked over the scene once more. Her sharp eyes caught the faint imprint of something unusual. There, beneath the edge of the cloth covering the altar, a faint indentation, almost like a circle pressed into the concrete, too clean for the surrounding chaos. She reached out, kneeling carefully, her gloves brushing cold stone. The mark was too precise, not natural, almost like it had been carved after the fact. The rain intensifies, pattering against her coat and pooling in the uneven cracks. She could smell the metallic odor of blood, but it was faint, almost like a smell manufactured, not fresh enough for real murder. She looked up at the ceiling, where the tunnel’s arching concrete faded into darkness beyond the candlelight’s reach. “What’s your take?” she asked Sullivan, standing again. “This looks staged. Like someone was trying to make us see what they want us to see.” He hesitated, nervous. “Yeah, but I think there’s more here. I checked the perimeter identifications—they’re all locals, no outsiders. Still, I kept thinking, why hide here? Why not somewhere more... accessible?” Her brow furrowed. “Maybe because it’s protected, or tucked away in a place no one would bother to look. Or maybe they’re hiding something here.” She moved, slow and deliberate, scanning the walls, the ceiling. Her eyes caught faint, almost obscured symbols scratched into the concrete—too faint to make out clearly. She pulled out her phone, tapping a quick picture, knowing she’d have to analyze later, once she had a good lead. But then her gaze snagged on something else: a small brass compass lying at the edge of the altar, half-buried beneath a scattering of broken candles. She knelt again, brushing rain from her fingers and carefully retrieving it. The casing was tarnished, patina of verdigris creeping across its surface, the face etched with tiny protective sigils that shimmered faintly in the candlelight. Her eyes flicked to the needle—pointing, unwavering, toward the darkness beyond the tunnel, as if pulled by an unseen force. She frowned, eyes narrowing. “That’s new.” Sullivan looked over her shoulder, brow raised. “What, the compass?” “Yeah. It’s also locked onto something supernatural. I don’t think it’s a coincidence.” She pocketed the compass, feeling the faint warmth of its metal under her fingertips. “This is no ordinary setup. Someone’s trying to tell us something — or hide something.” He hesitated, returning to the perimeter. “But if it’s supernatural… why here? Why under Camden?” Harlow’s gaze sharpened. “Because whoever staged this knew exactly what they were doing. They want us to look in certain directions—not just at the symbols or the scene, but at what’s beyond.” She pulled out her handheld, switching to her city map, marking the nearby exits and tunnels. Then, her eyes landed on a detail Sullivan hadn’t noticed: a faint smear of ash trailing toward one side of the tunnel, as if someone had moved through, hurried or purposeful. She followed the line with her eyes, a fleeting suspicion gnawing at her. “We’re missing something,” she said quietly. “Something bigger. Whoever did this wants us to think it’s just some ritual, some ritualistic killing. But the signs don’t add up. Not with the way it’s staged.” She looked back at the symbols, then at the compass, feeling that familiar prickling along her skin, the sense that unseen eyes were watching her. Shadowed corners seemed to whisper secrets in the flickering candlelight, secrets she was only beginning to grasp. The rain seemed to loosen, finally, as if veiling the truth beneath its heavy curtain. But Harlow Quinn knew better: beneath the surface of something so simple as a crime scene, something dark and ancient slumbered—and she’d find it, tonight or in the depths to come.
created_at"2026-02-17T02:45:19.83737+00:00" 2/17/2026, 2:45:19 AM
model"openai/gpt-4.1-nano-2025-04-14"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency929
moderation_latency(null)
generation_time11406
tokens_prompt923
tokens_completion1611
native_tokens_prompt836
native_tokens_completion1296
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.000602
router(null)
provider_responses
0
id"resp_03f94944edd8f81f016993d633a8b48193a95f706f579163e4"
status200
is_byokfalse
latency132
endpoint_id"9251cee5-5503-4be9-9439-7ae21ff062a3"
provider_name"OpenAI"
model_permaslug"openai/gpt-4.1-nano-2025-04-14"
api_type"completions"
id"gen-1771296307-tpd0M3jFOPsDfnZEsOYS"
upstream_id"resp_03f94944edd8f81f016993d633a8b48193a95f706f579163e4"
total_cost0.000602
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
50.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags4
adverbTagCount1
adverbTags
0"she said quietly [quietly]"
59.7180% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount993
totalAiIsmAdverbs4
found
0
adverb"carefully"
count2
1
adverb"sharply"
count1
2
adverb"slightly"
count1
highlights
0"carefully"
1"sharply"
2"slightly"
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)
19.4361% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount993
totalAiIsms8
found
0
word"flicked"
count2
1
word"shimmered"
count1
2
word"unwavering"
count1
3
word"furrowed"
count1
4
word"jaw clenched"
count1
5
word"etched"
count2
highlights
0"flicked"
1"shimmered"
2"unwavering"
3"furrowed"
4"jaw clenched"
5"etched"
66.6667% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches2
maxInWindow2
found
0
label"jaw/fists clenched"
count1
1
label"hung in the air"
count1
highlights
0"jaw clenched"
1"hung in the air"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences53
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount2
narrationSentences53
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences65
matches(empty)
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs26
mean37.88
std21.36
cv0.564
sampleLengths
085
165
29
326
423
574
639
712
830
971
1054
1125
1231
1325
1447
1562
1620
176
1810
1942
2015
2132
2260
2334
2442
2546
95.5975% Passive voice overuse
Target: ≤5% passive sentences
passiveCount3
totalSentences53
matches
0"been established"
1"been etched"
2"been carved"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount2
totalVerbs138
matches
0"were looking"
1"were watching"
94.1440% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount771
adjectiveStacks0
stackExamples(empty)
adverbCount36
adverbRatio0.04669260700389105
lyAdverbCount10
lyAdverbRatio0.01297016861219196
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences65
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences65
mean15.15
std8.92
cv0.588
sampleLengths
021
126
222
316
411
519
635
79
826
913
1010
116
1221
1324
1423
156
1614
176
185
191
207
214
228
234
2426
258
2610
2727
2810
2916
3013
3123
3218
338
3417
353
3628
373
3822
3910
4016
4121
4226
4312
4424
4520
464
472
487
493
73.8462% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats2
diversityRatio0.46153846153846156
totalSentences65
uniqueOpeners30
50.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags4
fancyCount2
fancyTags
0"Sullivan said, voice low, with that familiar tone of nervous excitement (say, voice)"
1"she said quietly (say quietly)"
82.9064%