Run: 2026-02-17-01KHMPEKE7VNW9EFJ5RENF0YDH

Run Details

Duration:
36.2s
Cost:
$0.016610
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 emerged from the underground passage into the stale, electric-tinged air of The Veil Market. The Market, hidden beneath the façade of an abandoned Tube station in Camden, stretched out before her in a labyrinth of makeshift stalls and dimly lit alcoves. Only the clink of rare metals and the hushed barter of illicit traders disturbed the musty quiet, save for the faint drip of water trickling from the unseen pipes above. It wasn't the first time Harlow had infiltrated a place like this, but today was different. Today, it was a crime scene. Her breath turned visible in the chill of the underground air, mixing with strands of shadows that flickered in the unreliable glow of mismatched bulbs. She adjusted the worn leather watch on her left wrist, its familiar weight reassuring against her skin, as she moved with the military precision etched into her bones. Eva Kowalski waited for her near a cluster of crates marked with the symbol of a crow in flight. The young woman's curly red hair was a beacon against the dark, her round glasses perched on a freckled nose. Even with the air of clandestine commerce around them, she was tucking strands of hair nervously behind her ear, the way she always did when something itched at the back of her mind. "Detective," Eva greeted, her voice a blend of relief and urgency. Her satchel, stuffed with books as usual, dangled at her hip like a weight. "I'm glad you came." Harlow's eyes narrowed slightly. "What have you got for me, Eva? I've been told something unusual's gone down." Eva adjusted her glasses, her green eyes sharp behind the lenses. "It's over here. One of the vendors found it this morning." The pair wound their way through the bustling stalls, the tantalizing scent of exotic spices teasing their noses, until they reached a secluded corner swathed in shadow. A patch of floor, marked off with a perimeter of dull red tape, was the focus. The stall itself was an assemblage of crates and tarps, but it was what lay inside that had drawn her here—a body, face ghostly pale, strangely untouched by the grime of the Market. The victim was a young man, unremarkable in appearance, dressed in ordinary street clothes that seemed out of place in this eldritch bazaar. His expression was serene, almost as if peaceful slumber had claimed him; only the unnatural stillness betrayed the truth. Eva hesitated a step behind as Harlow knelt beside the body, her brown eyes scanning the scene with meticulous care. "There's no sign of violence," Eva observed, her voice soft. "And nothing stolen." Harlow nodded, eyes alighting on the small brass object clutched in the young man's hand—a Veil Compass, its verdigris casing and sigil-marked face distinct even in the dim light. The needle, she noticed, pointed unwaveringly towards his chest. It was peculiar. Normally, the Compass would guide its bearer towards the nearest supernatural rift or portal, reacting to energies unseen by ordinary means. This inertia of the needle, however, suggested a profound disturbance, something anchored within. "Why didn't anyone report this sooner?" Harlow asked, rising to a stand, eyes still absorbing the surroundings. "The Market," Eva replied, a touch of frustration mingling with understanding in her voice. "They move with the moon. Secrets here, people cover up." "Right." Harlow rubbed her jaw, her mind mapping possibilities. "Someone needs to know more about how he ended up here." "The vendor who found him is... reluctant to talk," Eva said, throwing a quick glance towards the man, crouched and fidgeting among the shadows. His gaze skittered from them when he realized they were discussing him. Harlow crossed to the vendor, drawing upon the weight of her authority. "I need you to tell me what you know," she said, voice steady, yet unyieldingly soft. The vendor swallowed hard, eyes flitting nervously between Harlow and the retreat of shadows along the walls. "Saw him... saw him late last night, wandering. Thought maybe he was lost. Happens sometimes, folks getting turned around." "And this Compass?" Harlow inclined her head towards the brass object. "He’d had it all along?" The vendor shook his head, more certain now. "No, didn't see it at first. Showed after... after he was gone. Can't say how, I swear it." "There're signs it appeared when he passed," Eva murmured, coming up beside Harlow. "His body shows no transport, no alteration. Just... stopped." Harlow studied the vendor for a beat longer, then returned to the body, the questions assembling themselves in a pattern she didn’t yet fully grasp. Her eyes fell again on the Compass, its needle stubbornly affixed in its supernatural orientation. "What if," Harlow speculated aloud, "he wasn’t trying to find something, but running away from it?" Eva considered the notion, her eyes catching light in a reflective flash. "The Compass reacted to something nearby, perhaps? But no other rifts showed up on the census I checked earlier." Harlow crouched once more, her senses attuned to the faintest of disturbances. The shadows here seemed different, languid and pervasive, crawling with the flickers of unseen energies. She sensed a dissonance, something wrong—like the resonance of a note just slightly off-key. "Maybe we’re looking at this wrong," Harlow said. "If the needle's drawn to him, beneath flesh lies something we can’t see. We need to take him into secure custody, search for what others have missed." Eva nodded slowly, almost begrudgingly. She would rather pore over the texts in her archives, unearthing meaning through pages and ink. But Harlow had learned to trust her instincts, and Eva, sensing this, accepted the detective’s judgment with a measure of faith. "I'm curious about the vendor's story," Eva said, casting a suspicious glance back. "Still, this man's presence here means the Market is compromised, isn’t it? Something threaded within a tapestry of deceit." "Secrets without end," Harlow confirmed, her throat tight. "We'll bring him topside for the coroner. There’s more here than just a lifeless body." As the full moon crept near, signaling the Market’s imminent relocation, the passages of the underground world breathed restlessly around them. Harlow and Eva, flanked by truth and intangible whispers, began their ascent toward the world above, where daylight and inquiry awaited. The depths of The Veil Market knew many secrets, wrapped in dark silence and echoing whisper. But Harlow carried with her a determination to unravel the cloak of mystery, piece by precise piece, until the whole truth lay unveiled in the light. And as the paths unfolded, so too did the lingering specter of the supernatural—the forgotten chord she’d become in tune with, chasing the specter of a partner lost.
created_at"2026-02-17T02:22:20.233261+00:00" 2/17/2026, 2:22:20 AM
model"openai/gpt-4o-2024-08-06"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency384
moderation_latency(null)
generation_time36134
tokens_prompt923
tokens_completion1756
native_tokens_prompt836
native_tokens_completion1452
native_tokens_completion_images(null)
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"stop"
usage0.01661
router(null)
provider_responses
0
id"chatcmpl-DA50Z4wOszqslEirdED9otPaDdg1M"
status200
is_byokfalse
latency373
endpoint_id"9d15935a-34e6-4a5e-a5bc-c7dda213e876"
provider_name"OpenAI"
model_permaslug"openai/gpt-4o-2024-08-06"
api_type"completions"
id"gen-1771294903-LtVJHfq2VxQfnJPgvWXT"
upstream_id"chatcmpl-DA50Z4wOszqslEirdED9otPaDdg1M"
total_cost0.01661
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
totalTags11
adverbTagCount1
adverbTags
0"she said, voice steady, yet unyieldingly soft [unyieldingly]"
55.3172% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1119
totalAiIsmAdverbs5
found
0
adverb"nervously"
count2
1
adverb"slightly"
count2
2
adverb"slowly"
count1
highlights
0"nervously"
1"slightly"
2"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)
0.0000% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1119
totalAiIsms14
found
0
word"tapestry"
count1
1
word"beacon"
count1
2
word"tinged"
count1
3
word"resonance"
count1
4
word"flickered"
count1
5
word"clandestine"
count1
6
word"profound"
count1
7
word"tantalizing"
count1
8
word"weight"
count3
9
word"echoing"
count1
10
word"etched"
count1
11
word"unravel"
count1
highlights
0"tapestry"
1"beacon"
2"tinged"
3"resonance"
4"flickered"
5"clandestine"
6"profound"
7"tantalizing"
8"weight"
9"echoing"
10"etched"
11"unravel"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"eyes widened/narrowed"
count1
highlights
0"eyes narrowed"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences55
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences55
filterMatches
0"watch"
hedgeMatches(empty)
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences69
matches(empty)
96.6507% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs30
mean37.1
std18.12
cv0.488
sampleLengths
074
175
272
329
418
522
676
742
833
938
1037
1117
1224
1320
1436
1528
1636
1716
1826
1922
2040
2116
2231
2341
2435
2542
2632
2723
2842
2970
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount0
totalSentences55
matches(empty)
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount2
totalVerbs134
matches
0"was tucking"
1"were discussing"
93.3056% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount864
adjectiveStacks1
stackExamples
0"stale, electric-tinged air"
adverbCount28
adverbRatio0.032407407407407406
lyAdverbCount18
lyAdverbRatio0.020833333333333332
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
mean16.13
std7.39
cv0.458
sampleLengths
017
127
230
316
46
525
628
719
820
933
1011
1114
124
134
1414
1511
1611
1727
1816
1933
2023
2119
2220
2310
243
2529
269
273
2821
2913
3017
3114
3210
339
3411
3524
3612
3712
3816
3917
4019
4111
425
438
4418
4513
469
4725
4815
4916
75.8454% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats1
diversityRatio0.463768115942029
totalSentences69
uniqueOpeners32
0.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags11
fancyCount9
fancyTags
0"Eva greeted, her voice a blend of relief and urgency (greet, voice)"
1"Eva observed, her voice soft (observe)"
2"Eva replied, a touch of frustration mingling with understanding in her voice (reply, mingle)"
3"Eva said, throwing a quick glance towards the man, crouched and fidgeting among the shadows (say, throw crouch fidget)"
4"she said, voice steady, yet unyieldingly soft (say, voice)"
5"Eva murmured, coming up beside Harlow (murmur, come up)"
6"Harlow speculated aloud (speculate)"
7"Eva said, casting a suspicious glance back (say, cast)"
8"Harlow confirmed, her throat tight (confirm)"
83.5952%