Run: 2026-02-17-01KHMQMBNH8XZGQW57ZYS291KB

Run Details

Duration:
13.5s
Cost:
$0.002594
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 entrance to the abandoned Tube station yawned before Detective Harlow Quinn like a maw of forgotten secrets. The damp chill that clung to the air buzzed faintly with something else—something offset from the ordinary London fog. Her boots echoed sharply on cracked tiles mottled with grime and graffiti, each step measured and precise. The metallic clang of her worn leather watch brushing against her wrist was steady, a metronome against the unsettled silence. "This is where they found her," said DC Marcus Lyle, crouched near the far wall by the victim’s body, his pale face illuminated only by the weak glow of a handheld torch. "No witnesses, no surveillance. Just… this." He gestured toward the ground rimmed with streaks of dried blood and an arrangement of strange symbols scrawled in what looked like white chalk. Quinn’s sharp brown eyes narrowed. “In an abandoned station? Not even listed on any current routes,” she said. “How did she end up here?” The body—female, mid-twenties, red curls splayed like a fiery halo—lay unnaturally still, her eyes wide open and unseeing. Around her neck, a curious brass object caught the faint light: a small compass, its casing mottled with a verdigris patina. Quinn crouched to examine it close. “A Veil Compass,” she muttered, recognition steadying her voice. “Crafted by a Shade artisan, if this is authentic.” Lyle frowned. “Do you think someone planted it?” Quinn’s gaze drifted from the compass face—intricate sigils etched delicately on its surface—to the surrounding glyphs on the floor. She leaned forward, fingertips brushing the faded chalk lines that still radiated an almost imperceptible warmth. There was a resonance here, something unseen beneath the tangible evidence. “You said no surveillance,” Quinn asked, glancing toward the entrance where the rusted turnstile stood locked, a pile of bone tokens strewn nearby. “And no witnesses. No signs forced entry?” “We checked four adjacent streets,” Lyle replied. “Nothing. Just this place—this old station.” Quinn exhaled slowly. “There’s something off.” From the shadows near the platform edge, footsteps approached. Eva Kowalski emerged—her vibrant curly hair caught in the weak light, round glasses reflecting the scene. The green in her eyes was wide with nerviness as she tucked a stray curl behind one freckled ear. “You're here,” Eva said softly, her voice tight but determined. She paused beside Quinn, pulling a small leather satchel closer. “I heard about the compass. This place… it has layers.” “I doubt the usual.” Quinn’s gaze sharpened. “This isn’t just a mundane murder scene.” Eva nodded. “The Veil Market moves with the full moon. Beneath this very station used to be a nexus point—one that connected to other realms,” she said, brushing ash from the chalk lines with tentative fingers. Lyle’s brow furrowed. “Realms? You mean… supernatural?” Eva glanced at Quinn. “Yes. And that compass is key. It points toward the nearest rift or portal. This victim might have been involved in crossing over, or maybe they were forced back here.” Quinn’s pulse ticked faster. Three years ago, DS Morris was lost under strange circumstances involving a similar rift. The memory tightened a fist in her chest. “Why leave clues that point here?” she asked, voice low. Eva bit her lip, then pulled a folded piece of parchment from her satchel and laid it beside the body. Maps and notes covered in arcane symbols. “This victim was researching something. She left traces in the archives—ancient history tied to this station. Something she found threatened the balance.” Quinn scanned the parchment quickly, glimpsing references to a convergence of energies at the site. Then it clicked: the chalk glyphs weren’t random—they were binding circles. “Containment,” Quinn muttered. “Or a ward of some kind.” “Exactly. But someone overwrote them,” Eva said, pointing. The symbols within the circles were smeared, hastily altered. Lyle raised a hand. “So this wasn’t just a murder. It was a breached ritual?” Quinn’s eyes flicked back to the compass. The needle quivered erratically, pointing at angles that shouldn’t be possible. It tugged toward a thin crack in the tiled wall near the platform’s end. “This compass is drawn to supernatural energy,” she said. “If there’s a rift here, it’s close.” Eva stepped carefully toward the crack, peering inside. “It’s narrow, but I can see movement—shadows flickering beyond the stone.” Quinn stood and pulled her jacket tighter. “Tell me—why would someone lure a victim here and then try to cover it up as just another crime scene?” Lyle shrugged uncertainly. Quinn paced slowly past the body, eyes sweeping every detail. Then, something caught the corner of her vision—a faint shimmer trailing from the victim’s neck chain. A whisper barely audible beneath the thrum of the city above. “The victim wasn’t just here,” Quinn said, voice low and steady. “She tried to cross over—or escape something on the other side.” Eva swallowed. “But she was caught.” Quinn knelt again, running her fingers along the victim’s wrist. There was a subtle burn beneath the skin, like energy seeping out. Not natural—no killer’s wound matched it. “She was exposed to supernatural forces,” Quinn concluded. “Morris’s case wasn’t an isolated incident. This…” She tapped the compass. “…is a breadcrumb, a warning.” Lyle exhaled sharply. “You think the clique’s involved—the supernatural network?” “Yes.” Quinn’s eyes darkened with resolve. “They’re covering tracks by making this appear like an ordinary crime. But beneath the veil, something far more dangerous hunts in this station’s shadows.” Eva glanced from the cracked wall to the compass. “If we can trace the rift’s origin, maybe we can stop it.” Quinn nodded. “We find the portal, secure it, and then find the killer.” The detective tore her gaze from the body to the fissure ahead, her patience waning with every second spent waiting in this subterranean purgatory. “Lyle,” she said with quiet authority, “secure the perimeter. No one in or out without my say.” She turned to Eva, her voice softer now, tinged with an unspoken weight. “And Evie—stay close. This is the kind of case that will pull us both under if we’re not careful.” The shadows shifted. The compass needle trembled again, pointing steadily straight ahead. Quinn squared her shoulders. This was only the beginning.
created_at"2026-02-17T02:42:35.189781+00:00" 2/17/2026, 2:42:35 AM
model"openai/gpt-4.1-mini-2025-04-14"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency974
moderation_latency(null)
generation_time13408
tokens_prompt923
tokens_completion1768
native_tokens_prompt836
native_tokens_completion1412
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"
usage0.0025936
router(null)
provider_responses
0
id"resp_0881808b6a96470f016993d58d0fec81949593bba9a71fbf53"
status200
is_byokfalse
latency123
endpoint_id"872eccb7-9c85-45fc-974a-ff7c8e2407e6"
provider_name"OpenAI"
model_permaslug"openai/gpt-4.1-mini-2025-04-14"
api_type"completions"
id"gen-1771296140-IMf5iewkYyxNZH7hdSxh"
upstream_id"resp_0881808b6a96470f016993d58d0fec81949593bba9a71fbf53"
total_cost0.0025936
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
85.7143% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags14
adverbTagCount2
adverbTags
0"said DC Marcus Lyle, crouched near the far wall by the victim’s body, his pale face illuminated only by the weak glow of a handheld torch [only]"
1"Eva said softly, her voice tight but determined [softly]"
23.2982% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1043
totalAiIsmAdverbs8
found
0
adverb"carefully"
count1
1
adverb"quickly"
count1
2
adverb"sharply"
count2
3
adverb"slowly"
count2
4
adverb"softly"
count1
5
adverb"very"
count1
highlights
0"carefully"
1"quickly"
2"sharply"
3"slowly"
4"softly"
5"very"
80.0000% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found
0"Marcus"
100.0000% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
0.0000% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1043
totalAiIsms14
found
0
word"tangible"
count1
1
word"tinged"
count1
2
word"resonance"
count1
3
word"flicked"
count1
4
word"trembled"
count1
5
word"quivered"
count1
6
word"unspoken"
count1
7
word"unsettled"
count1
8
word"intricate"
count1
9
word"furrowed"
count1
10
word"weight"
count1
11
word"footsteps"
count1
12
word"echoed"
count1
13
word"etched"
count1
highlights
0"tangible"
1"tinged"
2"resonance"
3"flicked"
4"trembled"
5"quivered"
6"unspoken"
7"unsettled"
8"intricate"
9"furrowed"
10"weight"
11"footsteps"
12"echoed"
13"etched"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"eyes widened/narrowed"
count1
highlights
0"eyes narrowed"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences69
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences69
filterMatches
0"watch"
hedgeMatches(empty)
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences94
matches(empty)
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs44
mean23.3
std13.5
cv0.58
sampleLengths
074
138
229
319
445
518
68
746
830
913
106
1144
1230
1314
1436
157
1634
1726
1810
1927
2022
2126
229
2317
2415
2532
2616
2719
2827
293
3037
3122
326
3328
3424
3510
3630
3721
3813
3924
4017
4132
4212
439
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount1
totalSentences69
matches
0"were smeared"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount0
totalVerbs124
matches(empty)
87.4087% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount663
adjectiveStacks1
stackExamples
0"lost under strange circumstances"
adverbCount27
adverbRatio0.04072398190045249
lyAdverbCount18
lyAdverbRatio0.027149321266968326
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences94
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences94
mean10.9
std6.98
cv0.64
sampleLengths
018
119
217
320
432
56
624
75
813
96
1018
1121
126
139
149
152
166
1719
1816
1911
2023
217
227
236
243
253
269
2716
2819
2910
3010
3110
327
337
342
3534
363
374
384
3930
404
4114
428
4310
4420
457
4622
4715
4811
493
67.7305% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats3
diversityRatio0.425531914893617
totalSentences94
uniqueOpeners40
14.2857% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags14
fancyCount9
fancyTags
0"said DC Marcus Lyle, crouched near the far wall by the victim’s body, his pale face illuminated only by the weak glow of a handheld torch (say crouch handhold)"
1"she muttered, recognition steadying her voice (mutter, steady)"
2"Quinn asked, glancing toward the entrance where the rusted turnstile stood locked, a pile of bone tokens strewn nearby (ask, glance rust stand lock, strew)"
3"Eva said softly, her voice tight but determined (say softly)"
4"she said, brushing ash from the chalk lines with tentative fingers (say, brush line)"
5"Quinn muttered (mutter)"
6"Eva said, pointing (say, point)"
7"Quinn said, voice low and steady (say, voice)"
8"Quinn concluded (conclude)"
79.9081%