Run: 2026-02-17-01KHMQE6P5TGWWTV9P1201YPRQ

Run Details

Duration:
12.9s
Cost:
$0.002323
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
The rain hit the slick pavement like a drumbeat, steady, relentless, drowning out everything but the rush of water and the pounding of Detective Harlow Quinn’s boots. Her breaths came hard and measured, clouds of mist burning in the cold night. The neon glow of the Raven’s Nest flickered ahead—green like an ominous eye, casting long, jittery shadows across the warped brick walls. She didn’t slow. Couldn’t. Not when the figure ahead shuffled between foggy pools of lamplight with that reckless urgency. Tomás Herrera. She’d known that scarred forearm from a distance, the quiet gravity of a man who’d slipped off the grid. But tonight, something had tipped—a trail gone cold, a murmur of voice saved only in code. Tommy was the link, the needle in the haystack of the city’s hidden sins. Quinn’s fingers bent around the worn leather strap of her watch. Time was folding in on itself. She couldn’t lose him now, not after three years lost in dead ends and ghosts. Herrera’s silhouette jolted to the side, vanishing through a narrow alley between two shuttered shops. The scent of damp stone and rotting refuse filled Quinn’s nostrils as she slammed through puddles, the rain hammering down harder, blurring the world into streaks of gray and neon. She reached the alley, chest heaving, and caught sight of him slipping down a flight of grimy steps carved into the brick—a forgotten entrance that spilled away from the city’s heartbeat. Their eyes met just a fraction of a second, Navarro’s brown gaze flashing warning or desperation, Quinn couldn’t decide which. Then he disappeared into the shadows below. The underground air was instantly colder, laced with echoes—drips from cracked pipes, distant voices folded in shadow. Quinn paused at the top of the stairs, instinct and nights on the job warring inside her. This wasn’t the usual turf for a Metropolitan detective—she’d chased criminals through many labyrinths, but nothing like what lay beneath London’s skin. Below her feet was the Veil Market, whispered about in police whispers and strange folklore. An underground black market cloaked in secrets, rumored to cater to needs that defied logic and law. Her hand brushed the stratified stone wall, tracing the chill as her eyes adjusted. She heard muffled voices—bargaining in a language of nods and half-glimpses, the quick shuffle of feet on concrete and metal. She could hear the clink of coins, the faint but unmistakable scent of alchemical smoke weaving through the dank air. Tomás had disappeared inside that shifting maze, and Quinn knew that stepping forward could mean crossing the line into a world that didn’t care about badges or back-up. But her mind tightened around the memory of DS Morris—his smile the last warmth she’d ever seen before he was swallowed by something beyond her understanding. This chase, this dive, was the closest she’d gotten to a thread leading out of the mist. Her boots echoed down the steps, the rain muffled into a watery whisper overhead. The cavern opened up, a cavernous space crowded with stalls, each veiled with cloths heavy with moonlight hues and smoke rings. Banned trinkets gleamed—a spiderweb of harsh runes etched in obsidian, jars of iridescent liquid breathing faintly in slow pulses, aged leather volumes inked in languages long dead. The vendors looked up sharply as Quinn’s presence disturbed the stale market air. Faces peered—some human, others less so, their eyes gleaming with wary intelligence, too many quick movements to count. She felt the press of judgment, the charge of hostility, raw and sharpened by the necessity of survival. A voice slithered through the cacophony, low and smooth: “Bone token?” Quinn froze. There was no token in her pocket, no key to this shifting door. But if she wanted to find Tomás, to drag answers out into the light, she had to risk it. The detectives’ instincts screamed caution, but her grit clenched tighter. She was here now. From a sidestall, a hunched old woman emerged, her hands adorned with rings that glowed faintly. She held out a blackened, ivory bone token—engraved with cracking symbols, the kind did not appear in any registry Quinn had ever seen. “Want passage?” the woman asked. Her voice was like gravel and silk. “The Market moves with the moon. It doesn’t like uninvited guests.” Quinn’s fingers brushed against the cold token, hesitation clawing its way up her spine. The market was no ordinary place—it was a hive built on shadows, barter, and secrets that could unravel a cop’s world. She stepped forward, token clenched tight. “I’m looking for someone,” she said, voice hardening like tempered steel. “Tomás Herrera.” Heads turned, whispers rising like sparks. The air cracked with tension, but nobody moved to stop her. “Then follow. But know this,” the woman warned, stepping aside. “The Market tests those who walk its floors. Not all who enter leave the same.” Quinn swallowed past the knot tunneling through her throat and dropped the token into a small slot concealed beneath a carved totem. A soft click echoed, the bookshelves lining the chamber sliding open, revealing a narrow passageway swallowed by darkness. Without looking back, she stepped inside. The passage curled down into an elbow of shadows, and the air grew heavier with the thrum of whispered deals and the skin-prick of magic. Somewhere ahead, the faint glow of lantern light flickered over sweat-damp skin, a flash of Tommy’s scarred forearm. The chase was no longer a race through city streets—this was deeper, darker, the endgame beginning beneath the city’s bones. Quinn’s breath steadied. Whatever haunted this place, whatever held her partner’s fate, she was ready. The night knew her now—and so did the Veil Market.
created_at"2026-02-17T02:39:12.954914+00:00" 2/17/2026, 2:39:12 AM
model"openai/gpt-4.1-mini-2025-04-14"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency400
moderation_latency(null)
generation_time12337
tokens_prompt914
tokens_completion1518
native_tokens_prompt811
native_tokens_completion1249
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"
usage0.0023228
router(null)
provider_responses
0
id"resp_00f7ef32900a6377016993d4c3c66c8196805ea740631e5a1e"
status200
is_byokfalse
latency116
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-1771295939-GAsPVB1reLZmCJbSOfaw"
upstream_id"resp_00f7ef32900a6377016993d4c3c66c8196805ea740631e5a1e"
total_cost0.0023228
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
0.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags3
adverbTagCount2
adverbTags
0"she said, voice hardening like tempered steel [like]"
1"the woman warned, stepping aside [aside]"
89.5833% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount960
totalAiIsmAdverbs1
found
0
adverb"sharply"
count1
highlights
0"sharply"
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)
0.0000% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount960
totalAiIsms10
found
0
word"cacophony"
count1
1
word"flickered"
count2
2
word"gleaming"
count1
3
word"silk"
count1
4
word"echoed"
count2
5
word"echoes"
count1
6
word"etched"
count1
7
word"unravel"
count1
highlights
0"cacophony"
1"flickered"
2"gleaming"
3"silk"
4"echoed"
5"echoes"
6"etched"
7"unravel"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences61
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences61
filterMatches
0"watch"
hedgeMatches(empty)
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences64
matches(empty)
97.6924% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs23
mean41
std20.17
cv0.492
sampleLengths
063
170
232
345
458
517
671
754
871
962
1049
1111
1248
1339
1423
1535
1619
1717
1825
1940
206
2163
2225
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount1
totalSentences61
matches
0"was swallowed"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount1
totalVerbs153
matches
0"was folding"
94.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount919
adjectiveStacks1
stackExamples
0"over sweat-damp skin,"
adverbCount22
adverbRatio0.023939064200217627
lyAdverbCount5
lyAdverbRatio0.00544069640914037
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences64
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences64
mean14.73
std7.36
cv0.499
sampleLengths
027
114
222
33
41
515
62
719
816
914
1011
116
1215
1315
1430
1531
1620
177
1817
1917
2022
2115
2217
2314
2420
2520
2628
2726
2817
2914
3021
3127
3213
3318
3418
3511
362
3713
3819
3910
404
4116
4223
435
447
4511
4614
4721
486
4911
68.7500% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats1
diversityRatio0.421875
totalSentences64
uniqueOpeners27
8.3333% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags3
fancyCount2
fancyTags
0"she said, voice hardening like tempered steel (say, like temper)"
1"the woman warned, stepping aside (warn, step aside)"
79.9035%