Run: 2026-02-17-01KHMPG1RB3376TZGZ8BGN975Q

Run Details

Duration:
44.4s
Cost:
$0.016560
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
The air beneath Camden hung heavy with a damp chill that seemed to cling to the skin like a whispered secret. Detective Harlow Quinn stepped off the last metal rung of the ladder and landed softly on the cracked concrete floor of the abandoned Tube station. Her breath came out in visible puffs as she scanned the cavernous space. Veil Market lay dormant around her, its usual bustle of illicit trade replaced by eerie silence and flickering ghost-lights overhead, exposed filament bulbs hanging from frayed cords. The station, usually dressed in shadows that shifted like living things, now seemed to hold its breath in anticipation. There was a particular absence of the usual market sounds; no murmured haggles or the rustle of cloaks and coin. Just an unnatural quiescence that set the hairs on the back of her neck on edge. Harlow's sharp eyes, ever-brown and intent, moved methodically over the scene. Her watch, a relic as steadfast as she was, ticked softly, grounding her amidst the oddity. This was a crime scene, and the familiar frameworks of investigation insisted on asserting themselves, even if the location was anything but ordinary. Her gaze fell on a spot where a mass of goods had been upset, a tumble of veils and fabrics with curious sheen, all laced with silver thread. It appeared careless, disorderly, but there was intention there, she was sure of it. Harlow kneeled, her boots scraping against the hard floor, and she lifted a corner of the topmost fabric. Beneath was a small brass compass, its patina of verdigris glowing softly in the dim light, the needle quivering in agitation as if sensing her own disturbance. Eva Kowalski stood nearby, arms folded around her leather satchel, her curly red hair a vivid ember in the dark. Her glasses perched precariously on the bridge of her freckled nose as she ducked her head, glancing towards the compass with both trepidation and a scholar-like curiosity. "It's a Veil Compass," Eva said, her voice barely rising above a whisper, as though the market's usual rules of discretion still held. "Someone must have dropped it in the confusion." "Or left it here deliberately," Harlow responded, her tone brisk. Her fingers hovered over the compass, noting the etched sigils on the face, protective and ancient in design. "What do you make of it, Evie? Does it mean the Veil Market's involved in something deeper this time?" Eva exhaled slowly, tucking a loose curl behind her ear. "The compass points toward supernatural rifts, but here, in the market..." She shook her head. "It shouldn't be here if it's meant to lead one here. It suggests a presence or a portal, something unexpected." Harlow nodded, rising to her full height. She rolled her shoulders, eyes narrowing as her mind turned over the puzzle. The market's transience—a location that shifted with each moon's cycle—made it an elusive target, and now a supernatural tool linked to it lay openly on the floor, its presence as much a statement as any crime. "Let's consider what we know," Harlow said, the firmness in her voice steadying them both. "The market's supposed to be a secret, a haven from prying eyes. Whatever happened here disrupted that equilibrium." Eva nodded, moving closer to peer over Harlow's shoulder at the compass. "But the presence of a compass suggests an insider's hand, doesn't it? Someone wanting to lure another here, or maybe lead them away from something else entirely." Harlow murmured her agreement, eyes flitting to the shadows again, searching for threads yet unseen. "If there was a struggle, signs should be here," she mused. "And the absence of vendors or patrons suggests they were warned." "I would have heard if there was significant movement," Eva ventured, her satchel rustling innocuously as she rifled for a notebook. "A warning implies an insider, like you said, but for what purpose?" Harlow didn't answer immediately. Instead, she stood still as stone, letting the silence of Veil Market wash over her, listening for the hints it might offer. This place had an aura that spoke not in noise, but in absence—what was missing often more telling than what remained. "The market is supposed to provide security for those who seek its wares," Harlow said finally. "But a tool left here deliberately means a breach of that security. Someone wanted this place compromised, whoever they are, they'd have left traces, despite their intent." Eva glanced about, her own curiosity surfacing. "And the vendors? Did they just... vanish?" "A full moon affords them the opportunity to withdraw in case of danger, there's an understanding to preserve their secrecy," Harlow explained, scanning the perimeter where shadows gathered dense and quiet. "Yet, if someone manipulated that understanding, then perhaps more than mere sales were at stake." A gust of stale air swept over them, causing the hanging lights to sway. Harlow saw something catch the lamplight, glinting amidst the disarray. She moved swiftly, crouching to retrieve a small object—a bone token, its surface smooth and worn, an entry pass carved for only the most trusted patrons of the market. Eva regarded the token with interest. "That's what got us in here. Why leave another one behind?" "An invitation, or a mark," Harlow replied, voice pensive. "Tokens aren't left by accident. Could it be a message for us or a confirmation to another party about their successful entrance?" Eva chewed on her lower lip, fingers drumming lightly against her satchel in thought. "Either way, it implies intent. If someone managed to breach the safety of the market using or planting this... then they're more involved with the occult than we've anticipated. They must understand the implications of such a betrayal." "True enough," Harlow agreed, surety threading her words. "Understanding their motive is our next step. We need to identify whose interests are best served by disrupting the market." "Finding them here, or elsewhere?" Eva asked, wide green eyes full of the trust she'd always placed in Harlow's instincts. "We start here," Harlow said, flipping the token idly between deft fingers, noting the subtle notches that weren't in the typical designs she'd seen. Perhaps this was yet another clue, one etched with enough cunning to risk exposing. She pocketed it, glancing back at the compass, its needle jittering faintly. The detectives nodded silently, a shared resolve binding them to the task. Together, they would unpeel the layers of this new mystery, deftly as surgeons—or so they hoped—each revelation a fresh wound exposed, a deeper truth unveiled. As they moved back through the market's cavernous expanse, Harlow considered the forces at play. Shadows lengthening around them like an embrace of secrets yet untold. The truth was close, almost palpable, and she would unearth it, one precise incision at a time.
created_at"2026-02-17T02:23:16.306034+00:00" 2/17/2026, 2:23:16 AM
model"openai/gpt-4o-2024-08-06"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency430
moderation_latency(null)
generation_time44345
tokens_prompt923
tokens_completion1761
native_tokens_prompt836
native_tokens_completion1447
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"
usage0.01656
router(null)
provider_responses
0
id"chatcmpl-DA51Lm81WTTAP1UwpisdV30oat8ku"
status200
is_byokfalse
latency382
endpoint_id"9d15935a-34e6-4a5e-a5bc-c7dda213e876"
provider_name"OpenAI"
model_permaslug"openai/gpt-4o-2024-08-06"
api_type"completions"
id"gen-1771294951-8RNti8wfKOPHHJKsLhSE"
upstream_id"chatcmpl-DA51Lm81WTTAP1UwpisdV30oat8ku"
total_cost0.01656
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
12.1212% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags11
adverbTagCount4
adverbTags
0"Eva said, her voice barely rising above a whisper, as though the market's usual rules of discretion still held [barely still]"
1"Eva ventured, her satchel rustling innocuously as she rifled for a notebook [innocuously]"
2"Harlow said finally [finally]"
3"Harlow said, flipping the token idly between deft fingers, noting the subtle notches that weren't in the typical designs she'd seen [idly]"
38.3260% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1135
totalAiIsmAdverbs7
found
0
adverb"deliberately"
count2
1
adverb"lightly"
count1
2
adverb"slowly"
count1
3
adverb"softly"
count3
highlights
0"deliberately"
1"lightly"
2"slowly"
3"softly"
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)
29.5154% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1135
totalAiIsms8
found
0
word"palpable"
count1
1
word"glinting"
count1
2
word"trepidation"
count1
3
word"anticipation"
count1
4
word"amidst"
count2
5
word"etched"
count2
highlights
0"palpable"
1"glinting"
2"trepidation"
3"anticipation"
4"amidst"
5"etched"
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
narrationSentences51
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount2
narrationSentences51
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount2
totalSentences65
matches
0"disrupted that equilibrium"
1"manipulated that understanding"
67.2714% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs26
mean43.35
std16.71
cv0.385
sampleLengths
086
155
250
387
447
531
647
745
856
933
1039
1137
1233
1347
1443
1514
1646
1753
1817
1931
2052
2128
2220
2338
2449
2543
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount2
totalSentences51
matches
0"was, ticked"
1"been upset"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount0
totalVerbs139
matches(empty)
90.6717% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount789
adjectiveStacks0
stackExamples(empty)
adverbCount35
adverbRatio0.044359949302915085
lyAdverbCount21
lyAdverbRatio0.026615969581749048
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences65
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences65
mean17.34
std7.33
cv0.423
sampleLengths
021
125
213
327
419
520
616
711
816
923
1028
1114
1218
1327
1420
1527
1623
178
1810
1918
2019
2110
2215
2320
247
2513
2636
2715
2818
2912
3027
3115
3211
3311
3421
3512
364
3722
3821
3916
4027
417
427
4331
4415
4514
4610
4729
486
4911
89.7436% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats0
diversityRatio0.5384615384615384
totalSentences65
uniqueOpeners35
0.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags11
fancyCount10
fancyTags
0"Eva said, her voice barely rising above a whisper, as though the market's usual rules of discretion still held (say, barely rise still hold)"
1"Harlow responded, her tone brisk (respond)"
2"Harlow said, the firmness in her voice steadying them both (say, steady)"
3"she mused (muse)"
4"Eva ventured, her satchel rustling innocuously as she rifled for a notebook (venture, rustle innocuously rifle)"
5"Harlow said finally (say finally)"
6"Harlow explained, scanning the perimeter where shadows gathered dense and quiet (explain, scan gather)"
7"Harlow replied, voice pensive (reply, voice)"
8"Harlow agreed, surety threading her words (agree, thread)"
9"Harlow said, flipping the token idly between deft fingers, noting the subtle notches that weren't in the typical designs she'd seen (say, flip note do be not see)"
78.0970%