Run: 2026-02-17-01KHMR9TET3A364QGT4Y8Y89JS

Run Details

Duration:
38.0s
Cost:
$0.026240
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
Detective Harlow Quinn stepped off the platform into the hush of the abandoned Camden station. The stench of damp rot and iron-laced air wrapped around her like a shroud. She raised her worn leather watch to the meager glow of a flickering bulb: 06:12. Broken tiles crunched beneath her boots. Low light spilled from the tunnel’s yawning mouth, cobwebs swaying in a phantom draft. Under a halo of police tape, the victim lay splayed on cracked concrete. His skin was ashen, veins knotted like black cords beneath the surface. Scorch marks charred his shirt in intricate, symmetrical patterns. No soot clung to the fabric; the burns had radiated from within. Eva Kowalski crouched close, her round glasses catching stray beams from her phone’s torch. Freckles danced across her pale cheeks as she traced arcane lines drawn in chalk around the body. She tucked a curly red lock behind her left ear, a nervous habit Quinn already knew. “These sigils… they shift when I move,” Eva whispered. “They’re non-Euclidean.” Quinn knelt beside her, gaze flicking from chalk to corpse. She inhaled slowly, tasting copper on the stale air. “Meth lab gone wrong?” she asked, voice edged with skepticism. Eva shook her head. “Chemical burns don’t leave perfect hexagrams or pentagrams. And look—” She’shed her torch across the victim’s chest. The scorch pattern resembled a fractal, each arm radiating into finer branching lines. “It’s ritual. But he didn’t finish the rite.” From her lapel pocket, Quinn drew the Veil Compass. The small brass case bore a verdigris patina, its face etched with protective sigils. She flicked it open. The needle quivered, then steadied, pointing not toward the station exit but back into the service tunnel they had just passed. She snapped the lid shut and slipped it into her jacket. “Forensics will chalk it up to an accidental fire. But we both know nature doesn’t burn geometry this precise.” Eva’s eyes widened. “You brought it?” “I suspected I’d need it.” Quinn rose, boots echoing on tile. She circled the chalk ring, eyes scanning. Near the platform edge, she spotted a chipped bone token—ivory, the size of a thumb—clenched in the victim’s right hand. She pried it free. Its surface was scored with minute tooth marks. “Bone token,” she said. “Entry fee for the Veil Market.” Eva leaned in. “So he was a buyer. Or a courier. The Market moves every full moon to hidden stations. This stop only appears during the shift.” Quinn studied the token. “He tried to gain entry here. But something went wrong.” Rainwater dribbled from a broken vent, pooling at her heel. She flicked the token against her palm, smearing her glove with faint crimson. “Look for more tokens. He wasn’t alone.” Her sharp jaw set. She noted the station’s old sign, half-obscured by graffiti: Camden High Street. The place hadn’t hosted passengers in decades. Tonight, though, it served another purpose. Dark deals, forbidden alchemy, whispered lore. Eva tapped the chalk lines. “If this was a ritual to open a portal, he must have triggered something before he died.” Quinn’s eyes narrowed. “We’ve seen portals before, but this…” She bent once more to inspect the burns. “He was incinerated from the inside out. That’s how rifts spit out energy.” A distant clatter echoed behind them. Quinn rose, gloved hand resting on her hip. “Service tunnel,” she whispered. They followed the echo into a brick-walled corridor. Quinn’s flashlight beam danced over peeling paint and rat droppings. A plank of timber lay warped against a heavy steel door. Deep gouges scarred its surface. In the dim light, she could make out runes etched into the wood, their cuts too fresh to be accidental. Quinn forced the door. It groaned on rusted hinges, revealing a low-ceilinged service chamber. The air here felt warmer, charged. Dust motes swirled as she swept her torch across the floor grate at its center. A charred fragment of bone, a twisted length of copper wire half-melted, lay scattered among ash. Eva’s breath came quick. “This grate—if you open it—” “May lead to whatever he tried to summon.” Quinn crouched, pressing a gloved finger against the metal bars. She sensed a faint pulse, like a thrum of distant drums. The compass in her jacket vibrated, as though eager to point the way. She straightened. “We shut it down now, or he meant this place to be a breach.” Eva swallowed. “We need specialists. SWAT, hazmat, occult containment—” Quinn’s eyes flashed. “Try explaining blood runes to hazmat. No. We decant this ourselves, covertly. If the Eclipse Clique got wind of a police operation, they’d disappear before we arrived.” Eva hesitated, torch light trembling. “You think they set him up?” Quinn nodded. “This token, these glyphs—they’re staged. He wasn’t a rift mage; he was bait. They wanted someone to open it for them.” Overhead, the platform lights flickered to life. Floodlights pierced the tunnel’s gloom. Female voices called out. “Detective Quinn? We’re in position—” Quinn rose, dust motes drifting off her jacket. She slipped the compass into Eva’s satchel, zipping it around the books. “Keep it hidden until I call. No scans, no logs.” Eva slid her satchel free and clutched it. Her glasses fogged in the sudden chill. “You’re sure?” Quinn nodded once, then turned toward the service door. “File this as a structural collapse when you talk to them. Inquest says accident, electrical fault. Understood?” Eva exhaled, tucking another curly lock behind her ear. “Understood.” Quinn stepped back onto the platform as forensic officers streamed in, their boot heels clacking a staccato rhythm. Cameras flashed. They knelt by the body, bagged evidence, took statements. A uniformed sergeant saluted. “Morning, Detective.” She inclined her head. “I want a full sweep, 50-meter radius. No unauthorized personnel. And check for any missing person reports matching our victim.” The sergeant tapped his radio. “Yes, ma’am.” Quinn moved out of the crime scene perimeter. Rain still spattered the broken roof above. She surveyed the station—the cracked walls, the empty tracks, the faint hum that seemed to rise from the deepest tunnel. Her watch ticked on her wrist, worn leather stiff with age. 06:42. Eva joined her, satchel slung over one shoulder. “They’ll seal the service tunnel tonight. For good.” Quinn looked at her friend—hair tousled, cheeks pale but determined. “Then we’ll know where they rerouted.” She glanced at the satchel, as if sensing the compass inside. “Three days until the next full moon. The Veil Market moves then. If they open that breach, this station will vanish.” Eva swallowed. “What do we do?” Quinn’s brown eyes glinted. She pulled her leather watch strap tighter. “We follow the Market. We find the Clique. And we bring down every rift they try to open.” She paused, voice low. “I’m not losing another partner to this.” The abandoned station breathed around them—tiles whispering, echoes drifting. A stray breeze flicked a piece of paper across the platform. Quinn bent and picked it up: a tattered union Jack, torn in half. She crushed it in her hand. “We start now,” she said. And beneath the rails, in the dark chamber, something stirred. The faint heartbeat of a hidden world pulsed, waiting.
created_at"2026-02-17T02:54:42.814836+00:00" 2/17/2026, 2:54:42 AM
model"openai/o4-mini-high-2025-04-16"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6303
moderation_latency(null)
generation_time37354
tokens_prompt923
tokens_completion2863
native_tokens_prompt835
native_tokens_completion5755
native_tokens_completion_images0
native_tokens_reasoning4032
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"
usage0.0262405
router(null)
provider_responses
0
id"resp_030a94deebfb4d5a016993d84c552081958fb4ad46395af13e"
status200
is_byokfalse
latency137
endpoint_id"60020533-2fb2-4aa1-9454-181029fd52de"
provider_name"OpenAI"
model_permaslug"openai/o4-mini-high-2025-04-16"
api_type"completions"
id"gen-1771296844-gIHkgPeSYnjHULgsULmp"
upstream_id"resp_030a94deebfb4d5a016993d84c552081958fb4ad46395af13e"
total_cost0.0262405
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags5
adverbTagCount0
adverbTags(empty)
91.7219% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1208
totalAiIsmAdverbs1
found
0
adverb"slowly"
count1
highlights
0"slowly"
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)
0.6623% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1208
totalAiIsms12
found
0
word"flickered"
count1
1
word"flicked"
count3
2
word"quivered"
count1
3
word"intricate"
count1
4
word"echo"
count1
5
word"echoed"
count1
6
word"echoes"
count1
7
word"echoing"
count1
8
word"etched"
count2
highlights
0"flickered"
1"flicked"
2"quivered"
3"intricate"
4"echo"
5"echoed"
6"echoes"
7"echoing"
8"etched"
66.6667% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches2
maxInWindow2
found
0
label"eyes widened/narrowed"
count2
highlights
0"eyes widened"
1"eyes narrowed"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences99
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount3
hedgeCount1
narrationSentences99
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount1
totalSentences126
matches
0"open that breach"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs38
mean31.42
std18.6
cv0.592
sampleLengths
064
146
258
329
442
578
66
760
827
944
1035
1122
1230
1318
1454
1551
169
1758
189
1930
2011
2123
2221
2330
2417
2526
2610
2735
2824
297
3047
3116
3248
336
3440
3539
365
3719
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount1
totalSentences99
matches
0"was scored"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount0
totalVerbs163
matches(empty)
100.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount845
adjectiveStacks0
stackExamples(empty)
adverbCount17
adverbRatio0.020118343195266272
lyAdverbCount3
lyAdverbRatio0.0035502958579881655
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences126
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences126
mean9.48
std5.75
cv0.607
sampleLengths
015
114
215
36
414
513
612
79
812
914
1017
1116
129
132
1410
159
1610
174
1817
1913
208
219
2214
234
2421
2511
2619
273
283
2911
307
3120
324
338
344
356
363
3724
384
3920
4013
417
424
4312
447
456
466
475
4817
493
73.3333% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats0
diversityRatio0.44
totalSentences125
uniqueOpeners55
75.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags5
fancyCount2
fancyTags
0"Eva whispered (whisper)"
1"she whispered (whisper)"
88.6697%