Run: 2026-02-17-01KHMQYKJ115FAVEDK0MY244BJ

Run Details

Duration:
13.9s
Cost:
$0.002289
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 pummeled the narrow streets of Soho, turning the cobblestones into slick mirrors beneath neon glows and flickering street lamps. Detective Harlow Quinn’s breath came out sharp and ragged as she sprinted after the figure ahead, her shoes splashing through puddles that reflected shards of green from the nearby Raven’s Nest sign. The scent of damp concrete mingled with the stale smoke drifting from alleyway dumpsters. Her worn leather watch slapped against her wrist with every pulse of her arm, counting down seconds she didn’t have. The man turned sharply, almost slipping on wet brick but catching himself. Twice her height, lean, a shadow of movement weaving through the tight urban maze like a ghost she was born to pursue but still couldn’t catch. Quinn’s sharp jaw clenched. Three years ago, this chase might have ended differently—Morris would have been beside her, and maybe things wouldn’t have gone so dark. The memory stabbed at the edges of her focus but didn’t break it. “Stop!” she barked, the word lost in the rain’s relentless drum. The suspect glanced back, face half-masked under a soaked hood, eyes glinting with desperation and something else—fear? Mockery? It was impossible to tell beneath the blur. Without hesitation, he darted toward a rusted grate set into the sidewalk, flipping it open in a flick of skilled hands. Quinn hesitated only a fraction of a second before leaping in after him, the cool rush of subterranean air swallowing the noise of the storm above. Her shoes hit damp concrete, echoing hollow and sharp in the tunnel beneath the city. Fluorescent bulbs buzzed weakly above, flickering and casting long shadows. The underground was a different world—cracks in the walls whispered secrets, and the air tasted of mold, old pipes, and something metallic, like blood. She could hear him—quick, uneven footsteps splashing through small pools ahead, closer now. The tunnel forked sharply left, and Quinn pivoted just as the figure disappeared into a set of ancient, graffiti-scarred stairs descending further into darkness. The metal handrail was cold and slick under her fingers as she followed, breathing harder, muscles burning. At the bottom, the passage opened into a vaulted chamber, wide and cavernous. Fluorescent lights had given way entirely to smudged candles and strings of low-watt bulbs swathed in colored paper. Quinn blinked as her eyes adjusted. The walls were lined with stalls, cluttered and strange, selling artifacts she didn’t recognize—glowing vials, burbling jars filled with unfamiliar herbs and insects, talismans that hummed faintly when passed by. The Veil Market. She had heard whispers about this place—an underground nexus of illicit trade in the supernatural, shifting locations every full moon, accessible only to those who bore the bone tokens. This was not a place she was meant to be. And yet, her suspect was here. Quinn instinctively lowered her head, pulling her jacket collar higher as muted conversations fluttered around her like wary birds. Figures cloaked in shadow bartered in hushed tones. Faces, human and otherwise, flickered by—a glint of amber eyes, a flash of iridescent skin, lips too sharp, fingers tipped with unnatural nails. Everyone here belonged to a world that walked alongside hers, unseen and dangerous. She peeked from behind a stall draped in tapestries that shimmered faintly despite the gloom. The suspect was weaving through the crowd, clutching a small object wrapped in oilskin. She couldn’t make out what it was, but the man’s urgency was clear. Quinn’s pulse hammered again. Every training session, every experience screamed at her to abandon this chase—to call for backup, to retreat. This was unknown terrain, layered in danger she didn’t fully grasp. But the memory of Morris twisted tight around her resolve. She had to know why this man carried that package, and why it meant so much. Her boots clumped more loudly than she cared as she stepped forward, drawing attention from a pair of dark-eyed women behind a stall. They exchanged a glance, a flicker of something unreadable passing between them. “Looking for something, Detective?” one purred, voice low and laced with amusement. “Just following a lead,” Quinn said evenly, weighing the threat in their calm stares. “Leads down here tend to get... complicated. Dangerous even.” The other’s smile showed too many teeth, sharp and bright against the darkness. Quinn’s grip tightened on her coat’s lapel. “Make way.” They didn’t move. Suddenly, a sharp shout shattered the hushed whispers. Quinn spun. The suspect was at the far end of the market, colliding with a narrow doorway marked only by a worn bone token embedded in the frame. Without hesitation, he pressed it against the talisman, and the door swung open, revealing a deeper shadow beyond. An invitation. Or a trap. Quinn glanced back at the crowd. The faces around her had hardened, eyes narrowing. The market was holding its breath. She had choices: back out and lose her chance, or step through the door and face whatever waited inside. Her salt-and-pepper hair plastered to her scalp, she made her decision. With military precision, she adjusted the watch strapped to her wrist, checked her footing, and strode forward into the shadowed threshold. On the other side, the air shifted again—a cold, almost electric charge that pricked at her skin. The narrow passage narrowed further, walls pulsing faintly with runic carvings glowing a dull indigo. Her heart thundered, echoing against the stone. A whisper brushed past her ear. “You shouldn’t be here, Detective.” Quinn didn’t turn, didn’t slow. “Neither should you.” And with that, the door whispered shut behind her, sealing her in with the night’s deepest secrets.
created_at"2026-02-17T02:48:11.346836+00:00" 2/17/2026, 2:48:11 AM
model"openai/gpt-4.1-mini-2025-04-14"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency472
moderation_latency(null)
generation_time13798
tokens_prompt914
tokens_completion1523
native_tokens_prompt811
native_tokens_completion1228
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"
usage0.0022892
router(null)
provider_responses
0
id"resp_0b13afbe1b174efe016993d6dcd3548194aeee5f5a64e8ba67"
status200
is_byokfalse
latency168
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-1771296476-8LMZyQjvD0vi0wjc5S5l"
upstream_id"resp_0b13afbe1b174efe016993d6dcd3548194aeee5f5a64e8ba67"
total_cost0.0022892
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
totalTags1
adverbTagCount1
adverbTags
0"Quinn said evenly, weighing the threat in their calm stares [evenly]"
68.2203% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount944
totalAiIsmAdverbs3
found
0
adverb"sharply"
count2
1
adverb"suddenly"
count1
highlights
0"sharply"
1"suddenly"
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)
wordCount944
totalAiIsms11
found
0
word"flickered"
count1
1
word"flicker"
count1
2
word"shimmered"
count1
3
word"glint"
count1
4
word"glinting"
count1
5
word"fluttered"
count1
6
word"unreadable"
count1
7
word"jaw clenched"
count1
8
word"footsteps"
count1
9
word"echoing"
count2
highlights
0"flickered"
1"flicker"
2"shimmered"
3"glint"
4"glinting"
5"fluttered"
6"unreadable"
7"jaw clenched"
8"footsteps"
9"echoing"
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
narrationSentences66
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences66
filterMatches
0"watch"
hedgeMatches(empty)
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount1
totalSentences69
matches
0"carried that package"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs30
mean30.97
std24.49
cv0.791
sampleLengths
087
177
211
373
449
513
641
767
83
939
106
1163
1242
1358
1435
1512
1614
1722
189
193
2054
215
2220
2319
2432
2532
267
2711
288
2917
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount2
totalSentences66
matches
0"were lined"
1"was meant"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount2
totalVerbs172
matches
0"was weaving"
1"was holding"
94.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount916
adjectiveStacks1
stackExamples
0"ancient, graffiti-scarred stairs"
adverbCount35
adverbRatio0.03820960698689956
lyAdverbCount16
lyAdverbRatio0.017467248908296942
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences69
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences69
mean13.46
std7.73
cv0.574
sampleLengths
021
132
214
320
412
526
64
722
813
911
1017
111
128
1321
1426
1515
1610
1724
1813
1924
2017
2113
2218
236
2430
253
2629
2710
286
2919
308
3123
3213
3315
3414
3513
364
3717
3811
3910
4016
4123
4212
4312
4414
4522
467
472
483
498
75.3623% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats3
diversityRatio0.4782608695652174
totalSentences69
uniqueOpeners33
0.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags1
fancyCount1
fancyTags
0"Quinn said evenly, weighing the threat in their calm stares (say evenly, weigh)"
78.6813%