Run: 2026-02-17-01KHMQJ21KP1P4089M7CWAX1WP

Run Details

Duration:
25.0s
Cost:
$0.016758
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 painted London’s Soho into a city of ghosts, reflections stammering in oily puddles, neon running along the curb in wavering ribbons of green. Detective Harlow Quinn ran at a steady clip, breath measured, eyes hard. She caught glimpses of her quarry—a tall man in a threadbare raincoat, face indistinct—lurching through rivers of people clutching umbrellas or shrugging up their collars. He slipped down Brewer Street, the sodium glow staining the wet tarmac. Quinn’s boots slapped through a gutter, her jaw clenched tight, her sodden shirt collar itching against the back of her neck. She’d nearly lost him when a clutch of cyclists swept past, but she caught the glint of something—a medallion?—as he darted across Wardour. There: heading toward The Raven’s Nest, its garish green sign flickering above an unremarkable door in a forest of takeaway wrappers and bin bags. Quinn’s heart thudded steady, the same cold certainty making each step efficient, unyielding. Eighteen years on the job taught her the rhythm of pursuit. Ignore the spectators. Focus on the angle of his shoulders, the set of his stride, the way panic blurs into desperation. She drew close enough to see the dark head duck low beneath the door frame of the Nest, the tail of a raincoat vanishing. She pushed in right behind him, the damp-furred warmth of the bar muffling the city’s cacophony. Maps curled along the walls, sepia faces peering from black-and-white prints; nothing saw, yet everything watched. Quinn scanned the room, quick, methodical—barflies hunched uncertain over cloudy glasses, a bartender cleaning the same spot for the third time, a tourist gawping at the nautical chart by the toilets. No sign of her suspect. She moved with purpose, rainwater trailing off her coat. The bartender barely flicked an eye; her badge had gotten her nowhere here last week, and she hadn’t forgotten the veiled amusement in his tone. Now, she peered past the booths, searching for a dark shape, a fleeting memory of a raincoat. The man was gone. A flicker—a twist in the air as a bookshelf in the far corner juddered back, wide enough for a slim figure to slip through. Quinn caught the movement an instant before it closed again. She strode across the boards, the old timber creaking under her weight, and pressed her palm flat to the shelf. No handle. Fingers found the tiny catch at the edge—a click, a breath, and the gap appeared. She slipped inside, letting the door reseal itself behind her. A cramped corridor unfurled, lit only by a bare red bulb. The suspect—raincoat shedding puddles with every step—glanced back. He bolted. Quinn gave chase. The world narrowed to the thud of her pulse, the slap of her boots, the acrid tang of metal pipes running low along the wall. Down twisting stairs slick with condensation, boots scraping against worn stone, ducking through a battered steel door that yawned open as if expecting her. At the bottom, the corridor dead-ended at a heavy wooden hatch—propped open. Down below, voices mingled with the hollow echo of running feet. She hesitated, just long enough to feel the weight of the world above pressing down. Her instincts screamed at her—Don’t. You’re out of your jurisdiction. You don’t know this ground. And yet, the memory of DS Morris—laughter cut short, the whiff of something other—spurred her forward. Quinn dropped through the door, landing in the gut of old city, her boots tapping out a rhythm that belonged to older, stranger times. A decommissioned Tube platform sprawled out before her, ringed with colored banners fluttering in a wind that shouldn’t exist underground. Trestle tables bore strange wares: glinting vials, jars fogged with smoke, knives that caught the light like oil on water. The air buzzed, thick with the scent of spices—and something chemical, both sweet and rotten. Cloaked shapes moved among the stalls, faces obscured by scarves, hoods, scraps of gold-lace masquerade. The Market. She didn’t need the whispered stories in the canteen to recognize it. Her suspect paused, just at the edge of the crowd. He glanced over his shoulder, his face at last visible in the phosphorescent glow—a young man with olive skin, brown eyes wide and frantic, a scar tracking his left forearm: Tomás Herrera, the ex-paramedic. Quinn filed the details away, even as her focus shifted to what hung at his throat—a Saint Christopher medallion, catching the wan light. He was lost in the thickening press of the Market now, moving faster, body angled like a man running on empty. Quinn surged after him. A stallholder intercepted her, thrusting a fistful of dried flowers toward her nose. “One accursed bloom, just a half-crown, miss—” She dodged, pushing past a woman draped in black veils, the scent of vinegar and rot hanging off her. A hand caught her arm, rough and eager. Another barked at her in a hissing tongue. The crowd pressed in, each face a mask. She felt eyes on her badge—even if she’d had it visible, it would mean nothing here. She reached into her coat and felt the grain of her leather watch—her anchor—and pressed on. Herrera had almost reached the far end, where a great shadowed arch gaped like a broken jaw, promising escape into deeper darkness. She caught him at the fringe—a tack of her hand on his shoulder, sharp as a gunshot. He spun, eyes darting, breath fast. “Let me go,” he snapped, glancing past her toward the archway. His accent flickered, Spanish burnishing each word. “Tomás Herrera,” Quinn said, breath steady, “You’re in enough trouble already.” He snarled, twisting, but she anticipated his move—military precision. She blocked, her body weight pinning him just enough to keep him from slipping away without drawing attention. Around them, the Market parted—a ripple of wariness running through the crowd. Whatever these people were selling, they wanted no police entanglement. “I need to get out of here,” Tomás hissed, low enough for her ears alone. “How did you get in?” Quinn demanded. “There’s supposed to be an entry requirement.” He fished into his coat with his free hand and produced a bone token, old as sin and carved with sigils that made her vision shimmer. “This place isn’t for you, Detective,” he muttered, voice gone hollow. “You don’t know what you’re walking into.” She glanced sideways: a stall peddling jars that bled light, a masked figure watching her from behind lenses that flickered green, a child with eyes too old to belong to this world. Danger gnashed at the air, razor-edged but just out of reach. Instinct tugged at her—get out, call for backup, call for anyone. But something in Herrera’s face, raw with fear, snared her. “What’s after you?” she asked, lowering her voice. “Why run?” “They said you’d come,” he whispered, the words tumbling free, “but it’s not you I’m afraid of.” A movement by the arch—another figure detached itself from the crowd, tall, coat hanging heavy, brim of a hat pulled low. The Market seemed to lean inward, like a storm about to break. Herrera tugged her sleeve. “You didn’t see me,” he rasped. “For your own sake, walk away. This isn’t your world.” Quinn felt the bone token pass into her palm, cold and slick. She looked at Herrera’s face—pleading now, the mask of bravado gone, raw panic erasing everything else. She loosened her grip. Any more struggle and the Market would turn—a feeling as sudden and certain as a change in weather. She stepped back, letting him slip through the arch, the Market’s shadows swallowing him whole. The other figure—another hunter, or something older—paused, watching her. Its eyes glimmered, knowing. Quinn closed her hand over the token. The Market seemed to breathe around her—accepting, not quite welcoming. She stood in the thrum of danger and commerce, old photographs and maps far above her, the city forgotten for a heartbeat. She could turn back. Forget what she’d seen, file a sanitized report, let the tunnels have their secrets. Or she could follow, bone token in hand, every nerve screaming that the unknown yawns wider than any case file. Detective Quinn squared her shoulders, leather watch ticking against her wrist. Rainwater dripped from her hair, tracking down her spine. She stepped deeper into the Veil Market, the crowd closing behind her, and the city above faded to a murmur, lost to the dark.
created_at"2026-02-17T02:41:31.53877+00:00" 2/17/2026, 2:41:31 AM
model"openai/gpt-4.1-2025-04-14"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency312
moderation_latency(null)
generation_time24940
tokens_prompt914
tokens_completion2196
native_tokens_prompt811
native_tokens_completion1892
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"
usage0.016758
router(null)
provider_responses
0
id"resp_08f5a161af91e200016993d541a9788195b54fb4a2e746fc35"
status200
is_byokfalse
latency111
endpoint_id"c235abe8-11cc-42d3-95ad-72f4d198287a"
provider_name"OpenAI"
model_permaslug"openai/gpt-4.1-2025-04-14"
api_type"completions"
id"gen-1771296065-mgLOHfQ25IaacQBzI53B"
upstream_id"resp_08f5a161af91e200016993d541a9788195b54fb4a2e746fc35"
total_cost0.016758
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
91.6667% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags8
adverbTagCount1
adverbTags
0"Tomás hissed, low enough for her ears alone [enough]"
100.0000% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1426
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)
0.0000% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1426
totalAiIsms15
found
0
word"cacophony"
count1
1
word"lurching"
count1
2
word"flickered"
count2
3
word"flicker"
count1
4
word"flicked"
count1
5
word"glint"
count1
6
word"glinting"
count1
7
word"wavering"
count1
8
word"methodical"
count1
9
word"jaw clenched"
count1
10
word"weight"
count3
11
word"echo"
count1
highlights
0"cacophony"
1"lurching"
2"flickered"
3"flicker"
4"flicked"
5"glint"
6"glinting"
7"wavering"
8"methodical"
9"jaw clenched"
10"weight"
11"echo"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"jaw/fists clenched"
count1
highlights
0"jaw clenched"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences98
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount2
hedgeCount2
narrationSentences98
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount1
totalSentences102
matches
0"screaming that the"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs29
mean47.97
std24.59
cv0.513
sampleLengths
062
180
269
368
455
581
621
775
846
9108
1067
1164
1278
1341
1411
1549
1615
1714
1844
1954
2020
2117
2233
2320
2450
2528
2657
2720
2844
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount2
totalSentences98
matches
0"was gone"
1"was lost"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount1
totalVerbs229
matches
0"were selling"
94.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1346
adjectiveStacks1
stackExamples
0"uncertain over cloudy glasses,"
adverbCount27
adverbRatio0.020059435364041606
lyAdverbCount4
lyAdverbRatio0.0029717682020802376
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences102
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences102
mean13.64
std7.46
cv0.547
sampleLengths
025
112
225
312
421
523
624
713
811
93
1018
1124
1216
1316
1431
155
169
1725
1817
194
2024
2110
2220
232
2415
2510
2611
278
282
293
3025
3124
3212
3311
3415
355
365
375
3816
3924
4020
4120
4215
4315
442
4512
4610
4734
4823
4921
66.9935% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.43137254901960786
totalSentences102
uniqueOpeners44
0.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags8
fancyCount6
fancyTags
0"he snapped, glancing past her toward the archway (snap, glance)"
1"Tomás hissed, low enough for her ears alone (hiss)"
2"demanded (demand)"
3"he muttered, voice gone hollow (mutter, go)"
4"he whispered, the words tumbling free (whisper, tumble)"
5"he rasped (rasp)"
85.4506%