Run: 2026-02-17-01KHMQE6PBRDCAQ138G05K8RTV

Run Details

Duration:
18.5s
Cost:
$0.012067
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="4417" name="Tomás Herrera" aliases="Tommy, Tomás, Herrera" pronouns="he/him" species="Human" storyRole="Support"> <eyeColor>warm brown</eyeColor> <hair>short curly dark brown</hair> <height>5'10"</height> <age>29</age> <skinTone>olive skin</skinTone> <scar>scar running along his left forearm from a knife attack</scar> <medallion>Saint Christopher medallion around his neck</medallion> <birthplace>Seville, Spain</birthplace> <description>A former paramedic who provides off-the-books medical care for the clique.</description> <backstory>Born in Seville, Spain. He moved to London to work for the NHS but lost his license after administering unauthorized treatments to supernatural patients.</backstory> </character> <location id="854" name="The Raven's Nest" aliases="the Nest, Raven, Silas' bar" realm="Earth"> <signColor>distinctive green neon sign above the entrance</signColor> <secretRoom>hidden back room accessible through a bookshelf, used for clandestine meetings</secretRoom> <description>A dimly lit bar in Soho, London. The walls are covered with old maps and black-and-white photographs.</description> </location> <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> </codex> Write a fully fleshed out scene of at least 1000 words in the thriller genre. A detective is pursuing a suspect through rain-soaked city streets at night. The chase takes them from the street level down into an underground market. The detective must decide whether to follow the suspect into unfamiliar and potentially dangerous territory. 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
Rain spatters across Harlow Quinn’s coat as she picks her way through the puddled asphalt of Old Soho. Each streetlamp tilts in the drizzle, casting fractured shadows that flicker with the neon glow of a distant Raven’s Nest sign. Somewhere back there, the suspect—someone Quinn has trailed for three blocks—slipped into a side alley. Now Quinn’s boots splash through reflecting pools, her breath coming in crisp, even bursts. She tastes the cold edge of midnight, sharp as a blade. Her left hand hovers at her hip, fingers brushing the cold leather of her service pistol. The world compresses into one focus: the chase. She rounds the corner and catches a glimpse of movement: a flash of a raincoat drained of color, shoulders hunched against the downpour. The figure darts through stacks of overturned crates, weaving between the brick skeletons of half-demolished storefronts. Quinn accelerates, each muscle coiled with disciplined intent. She presses her jaw forward—sharp line cutting into the night air—and resets her aim on the suspect’s collar. Rain hammers at her shoulders, each droplet drumming against her closely cropped hair. She imagines the suspect’s heartbeat echoing her own, tight and urgent. “Stop!” she calls, voice crisp, seeded with authority. The suspect doesn’t slow. They vault over a rusted fire escape ladder, metal groaning under their weight. Beneath the clamor, there’s something else: a soft scrape, like fingernails against stone. Something that shouldn’t be here. Quinn’s instincts—shaped by eighteen years in the Met—whisper of hidden routes. She swings right, roars after them through a narrow cut in an ivy-choked wall. Water sluices down dripping vines. Her foot catches on uneven mortar. She stumbles, catches herself, then vaults forward, nearly toppling into a yawning mouth of concrete. In seconds the chase has plummeted her from street level into an abandoned Tube station, its entrance concealed beneath a rusted grate. The stairwell yawns downward, slick with rain runoff and long-dry graffiti tagging the ancient walls: symbols she doesn’t recognize, arcs that look like runes. Her pulse picks up. She flicks on a battered torch clipped to her belt—its beam slices through the gloom, illuminating loose rubble and splinters of wood. Cold wind sighs up the steps, carrying an undercurrent of rot, copper, and something faintly acrid. Quinn presses down, careful to keep her light low, cautious of giving away her position too early. Her leather watch, worn soft by years of duty, glints once before vanishing into shadow. Halfway down, she hears it: a muted conversation, voices low and hurried, overlapping. One rough voice—stubbled, clipped with urgency—says, “Token’s in place. Don’t waste time.” A wet slap echoes, like flesh against flesh. Quinn pauses, hand tightening on the torch. Her breath curls in the dark. Beneath the Tube’s carved-in geodesic ribs, she senses the air shift: as if the world here obeys different rules. Her partner’s face flickers behind her closed lids—Morris, smiling as he cursed a stubborn door. Quinn swallows. That case, three years ago, had left her with no answers and a wound she still weighs nightly. She pushes on. The stairwell spits her into a cavernous platform. The ceiling here seems to have collapsed decades ago, leaving jagged beams crisscrossing overhead. Beyond them, stray tendrils of green neon glow, seeping from a sign mounted on a reclaimed station wall. VARNISH. Veil Market. The letters flicker. Quinn’s chest tightens. This is the whisper network she’s chased through precinct briefings—an underground bazaar for enchanted goods, illicit alchemy, secrets powerful enough to bulldoze careers. The suspect stands at a makeshift checkpoint, pressed against a rail. Two burly figures flank a battered turnstile laden with rust. Between their gauntleted hands lies a carved bone token, ivory streaked with red. They palm the token, exchange a nod. The turnstile clicks open, admitting a dozen dark shapes flowing past. Quinn steps forward, torch raised. Her voice bounces against the dusty brick. “Police!” No one flinches. Voices hush. Shadowed faces swivel toward her: a woman in a velvet shawl, fingertips tipped in silver. A man with eyes too bright and pupils too narrow. The air thrums. A hallucinatory scent of saffron and brimstone curls beneath her nose. The bouncers—shorter but broad-chested—exchange a glance. One grunts, lifting a gaunt finger at the token in their partner’s hand. Quinn recognizes the protocol: show the bone, pass the gate. She reaches into her coat instead for her warrant. It doesn’t matter. Here, her badge is meaningless. She takes a steadying breath. Weapon still drawn, she advances. The first bouncer’s knuckles, scarred from rituals she doesn’t understand, clamp on her shoulder. Frost blooms where his skin meets hers, then vanishes. She staggers but doesn’t drop the torch. Rainwater drips from her shoulders onto the tile—tiny black puddles where the neon light fights the dark. The bouncer’s breath is damp and hollow. “No entry,” he intones, voice gravel against velvet. “No bone.” Quinn heels planted, she levels her gaze. “Where’s the suspect?” she demands. “Someone chipped a kid. I need him now.” She sees doubt flicker in the second guard’s eyes. “Token or you turn back,” he says. She presses her jaw—military precision anchored in her bones. “What’s he got? The one in the raincoat.” She spares him a glance. “He gave me a name.” Rictus. The guard stiffens. Quinn has never heard that name before, but the guard’s fingers twitch. He lifts the bone token to her face as if to taunt. “You bleed that token, you pay in kind.” Behind her, the crowd inches closer, pressing in like a tide of smoke. Alchemical vials clink. A butcher’s hook glints. Vines of dyed leather coil over an oak table, moving like living things. The guard loosens his grip. Quinn’s breath hitches in the charged air. Her pulse throbs in her ears. Duty claws at her with sharp nails—evidence to secure, laws to enforce—while fear trails at her heels, whispering of unseen horrors. Morris died because he chased too far. She survived because she turned back once. Now she stands at the edge of a world she barely understands, between the warmth of the rain outside and this unnatural glow below. She lifts one boot, steps forward. The guard’s hand tightens. Lightning flickers—a shuttering overhead light. In that crack of brightness, Quinn sees the suspect slip through a side arch, vanishing into another corridor carved from soot and spray-paint. He moves with desperate grace, corners bending inhumanly. Quinn tightens her grip on her torch. She shakes off the bouncer’s hand, jolts free. He recovers, menacing, but she guns her engine. She’ll pay the price later. For now, she bolts past the turnstile, torch slicing through bodies and stalls. She finds herself in a narrow tunnel hung with ragged banners, each bearing symbols that pulse in the neon haze. Damp earth presses at her boots. The world tilts toward the unknown, and she leaps in after him without a second thought.
created_at"2026-02-17T02:39:18.818943+00:00" 2/17/2026, 2:39:18 AM
model"openai/o4-mini-2025-04-16"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2033
moderation_latency(null)
generation_time17847
tokens_prompt914
tokens_completion2351
native_tokens_prompt810
native_tokens_completion2540
native_tokens_completion_images0
native_tokens_reasoning896
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"
usage0.012067
router(null)
provider_responses
0
id"resp_08683ab179b8d94a016993d4c3d2a08197a5299d8c15299c19"
status200
is_byokfalse
latency142
endpoint_id"bd121898-b27c-4e2c-bc92-278627465a54"
provider_name"OpenAI"
model_permaslug"openai/o4-mini-2025-04-16"
api_type"completions"
id"gen-1771295939-3PijF3QL9AyOaO3G39dr"
upstream_id"resp_08683ab179b8d94a016993d4c3d2a08197a5299d8c15299c19"
total_cost0.012067
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)
100.0000% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1172
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
23.2082% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1172
totalAiIsms9
found
0
word"flicker"
count3
1
word"velvet"
count2
2
word"fractured"
count1
3
word"weight"
count1
4
word"echoes"
count1
5
word"echoing"
count1
highlights
0"flicker"
1"velvet"
2"fractured"
3"weight"
4"echoes"
5"echoing"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"without second thought"
count1
highlights
0"without a second thought"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences108
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences108
filterMatches
0"watch"
hedgeMatches
0"seems to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount1
totalSentences110
matches
0"heard that name"
0.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs11
mean104.36
std15.28
cv0.146
sampleLengths
0103
189
294
3120
4103
5124
6103
774
899
9110
10129
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount0
totalSentences108
matches(empty)
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount0
totalVerbs184
matches(empty)
100.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1123
adjectiveStacks0
stackExamples(empty)
adverbCount22
adverbRatio0.019590382902938557
lyAdverbCount8
lyAdverbRatio0.007123775601068566
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences110
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences110
mean10.44
std5.95
cv0.57
sampleLengths
018
121
215
314
411
516
68
723
816
98
1018
1113
1211
138
144
1513
1613
175
1811
1914
205
216
2215
2322
2424
254
2622
2716
2817
2915
3013
3120
327
336
3419
3515
362
3718
383
398
4014
4118
421
432
443
453
4623
4711
4810
4913
70.9091% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats2
diversityRatio0.43636363636363634
totalSentences110
uniqueOpeners48
25.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags5
fancyCount3
fancyTags
0"One rough voice—stubbled, clipped with urgency—says, A wet slap echoes, like flesh against flesh. (stubble, clip)"
1"he intones, voice gravel against velvet (intone, voice)"
2"demands (demand)"
83.4775%