Run: 2026-02-17-01KHMR64DKT48XBVBQAB1091DP

Run Details

Duration:
19.1s
Cost:
$0.002814
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 stepped down the narrow concrete stairwell into the cold, dimly lit expanse of the abandoned Tube station beneath Camden. The faint echo of dripping water mingled with the distant rumble of above-ground trains, creating a dissonant rhythm in the chill air. She adjusted the collar of her coat and glanced at the battered police tape cordoning off the scene. A metallic tang of blood hung faintly, barely perceptible beneath the usual dampness of the underground platform. It was no ordinary crime scene—something about it refused to settle in her bones. Quinn had been called here on a whisper of murder, but the location itself was peculiar. This decrepit station hadn’t seen a passenger in decades, yet here they were: a body sprawled near the old turnstiles, police officers muttering theories that failed to convince her. Detective Sergeant Milo Grant was already at the perimeter, crouched beside the victim. He looked up as Quinn approached, pushing his glasses higher on his nose. “You’re finally here,” he said with a hesitant grin, the light from a flickering overhead bulb catching the worry lines etched deep into his face. Quinn didn’t reply immediately. Her sharp eyes scanned the scene—the victim, a young woman dressed in layers of uneven fabric and worn leather boots, lay face up beneath the arched concrete ceiling. Her features were obscured by shadows, but the absence of obvious trauma gave Quinn pause. No bloodied knife, no blunt force injury, no sign of struggle other than the faintest disturbance in the thin dust kicked up around her. “What’s the preliminary?” Quinn finally asked, her voice low, steady. Milo gestured toward the silence around them. “No witnesses, no CCTV obviously. Time of death seems about midnight, but the body’s in a state of... decomposition that doesn’t quite fit. And we found this.” He pulled something from a small evidence bag—a bone token, bleached white and etched with delicate runes Quinn recognized from a case file months ago. A marker of entrance into the Veil Market. Quinn’s brow furrowed. “You think this girl was trying to get in?” Milo nodded cautiously. “That’s the theory. But here’s the twist—there are no signs of entry through the usual channels. No known openings, no witnesses to her arrival or departure.” Quinn’s gaze drifted to the edges of the platform, where old advertisements flaked off the wall and a rusted train door sat half open like a broken mouth. She walked slowly around the perimeter, noting the subtle irregularities. The air near the far wall shimmered ever so faintly, as if the cold mist bent unnaturally against the bricks. “That’s not just decay,” she murmured, crouching to examine the floor. The dust was disrupted around a small brass cicada-shaped object—a Veil Compass. She pried it free and held it up, noting the verdigris patina, the face etched deep with sigils, and the needle twitching erratically. “Looks like the compass is active,” Milo whispered behind her. “Pointing to something off the wall there.” Quinn turned, watching the compass needle wobble before settling toward the distant wall. Her eyes narrowed. This was no ordinary crime scene. The girl’s death was the consequence of stepping where no human should. Milo’s voice broke through her concentration. “The forensic team didn’t find conventional toxins or anything after testing. It’s as if her body was... drained. Something supernatural.” Quinn’s mind flashed back to DS Morris—the partner she’d lost three years ago under circumstances just as inexplicable. She fought down the resurgence of grief and doubt. Supernatural or not, she had to trust her instincts first. Standing, Quinn’s sharp jaw clenched. “Milo, we’re not dealing with a simple homicide. Whoever—or whatever—did this, used methods designed to erase evidence, to keep us blind.” Milo looked uneasy but peered back at the compass. “So, what now? We call in the occult unit? The others will laugh us out of HQ for even suggesting that.” Quinn shook her head. “No one knows this place like I do.” She tapped the compass lightly. “I want a full sweep. See where the needle points, and watch the surroundings carefully. Every detail matters.” Milo gave a half-smile. “This is what you do best, isn’t it?” She gave a cold nod, sending a silent vow into the stale underground air. As they stood in watchful silence, a soft rustling came from the narrow corridor behind the victim. Quinn spun, drawing her service pistol with military precision trained from years on the force. A petite figure emerged, red curls bouncing in the shadows—Eva Kowalski, clutching her worn leather satchel close. “Eva?” Quinn’s surprise was genuine. “What are you doing here?” Eva’s green eyes flickered nervously behind her round glasses as she tucked a wild curl behind her ear. “I heard about the body. Someone mentioned the location. I thought maybe I could help.” Quinn’s jaw tightened. She trusted Eva’s research instincts, though the young scholar’s involvement sometimes made things messier. “This isn’t a museum archive, Evie. What do you know about this?” Eva took a hesitant step forward, voice low. “The Veil Market. It isn’t just rumor—or a legend. It’s real. And it moves through these underground abandoned stations during the full moon.” “Why come here tonight, then?” Quinn asked, eyeing the clock on her wristwatch. “Full moon was two nights ago.” Eva swallowed, then pulled a set of notes from her bag. “Because the ley lines shift. The portal lingers a bit longer sometimes, especially if someone’s trying to force it open. I think someone wanted the compass to guide them here—and this girl was the key.” Quinn stared at her friend, weighing the words. “If the portal’s still active, that explains the shimmer you saw on the wall.” Eva nodded. “And if the girl died trying to cross over...” Her gaze faltered. Quinn’s mind reassembled the puzzle like a steel trap snapping shut. “This was no random killing. It’s part of a larger pattern—people getting caught in the crossover between realms.” A sudden motion caught Quinn’s eye—the compass needle suddenly spun wildly, then pointed directly at a seam in the tunnel wall. “Look,” Milo said sharply, stepping forward. Quinn crouched again, inspecting the aged brickwork. The mortar was loose, but beneath it—a faint pulsating glow hummed softly. She slipped on a pair of gloves and pressed her palm against the wall. An electric charge sifted through her skin. “Supernatural energy, definitely,” she muttered. Eva pulled a small vial from her satchel and pressed it against the wall in one spot. The liquid vanished instantly, as if swallowed by the surface. Quinn rose, lunging for her radio. “Send in tech with spectral scanners. We need to map that wall, and I’m going to get to the bottom of how this girl got here, and what killed her." She glanced down once more at the body, now bathed in the eerie glow seeping from the cracked wall. This wasn’t just the scene of a homicide. It was the edge of something far more dangerous—and Quinn wasn’t going to let it go unsolved. Not after what she’d already lost.
created_at"2026-02-17T02:52:23.447141+00:00" 2/17/2026, 2:52:23 AM
model"openai/gpt-4.1-mini-2025-04-14"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency401
moderation_latency(null)
generation_time18963
tokens_prompt923
tokens_completion1924
native_tokens_prompt836
native_tokens_completion1550
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"
usage0.0028144
router(null)
provider_responses
0
id"resp_04add279cf3320a8016993d7d372148194a824fa4e040ee118"
status200
is_byokfalse
latency117
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-1771296723-6vZ8NsywZ7nN1cvFZJ12"
upstream_id"resp_04add279cf3320a8016993d7d372148194a824fa4e040ee118"
total_cost0.0028144
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
77.7778% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags6
adverbTagCount1
adverbTags
0"Milo said sharply, stepping forward [sharply]"
33.2220% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1198
totalAiIsmAdverbs8
found
0
adverb"carefully"
count1
1
adverb"cautiously"
count1
2
adverb"lightly"
count1
3
adverb"nervously"
count1
4
adverb"sharply"
count1
5
adverb"slowly"
count1
6
adverb"softly"
count1
7
adverb"suddenly"
count1
highlights
0"carefully"
1"cautiously"
2"lightly"
3"nervously"
4"sharply"
5"slowly"
6"softly"
7"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)
24.8748% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1198
totalAiIsms9
found
0
word"flickered"
count1
1
word"shimmered"
count1
2
word"spectral"
count1
3
word"furrowed"
count1
4
word"jaw clenched"
count1
5
word"echo"
count1
6
word"etched"
count3
highlights
0"flickered"
1"shimmered"
2"spectral"
3"furrowed"
4"jaw clenched"
5"echo"
6"etched"
66.6667% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches2
maxInWindow2
found
0
label"eyes widened/narrowed"
count1
1
label"jaw/fists clenched"
count1
highlights
0"eyes narrowed"
1"jaw clenched"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells1
narrationSentences69
matches
0"looked uneasy"
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences69
filterMatches(empty)
hedgeMatches(empty)
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount1
totalSentences86
matches
0"map that wall"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs37
mean31.89
std18.48
cv0.579
sampleLengths
079
159
251
371
410
567
612
729
858
946
1017
1134
1226
1337
1426
1530
1635
1712
1814
1949
2010
2133
2229
2331
2419
2546
2622
2714
2829
2921
306
3119
3221
335
3427
3536
3650
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount3
totalSentences69
matches
0"been called"
1"were obscured"
2"was disrupted"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount0
totalVerbs144
matches(empty)
97.0104% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount834
adjectiveStacks0
stackExamples(empty)
adverbCount34
adverbRatio0.0407673860911271
lyAdverbCount19
lyAdverbRatio0.022781774580335732
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences86
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences86
mean13.72
std8.35
cv0.609
sampleLengths
022
122
218
317
414
516
629
713
813
925
104
1128
1215
1324
1410
157
1652
178
183
199
203
2126
2228
2310
2420
2511
2612
2723
2810
297
3013
313
326
3312
346
3520
3618
379
3810
395
4021
419
4221
434
4413
4518
464
478
4814
4917
57.7519% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats2
diversityRatio0.36046511627906974
totalSentences86
uniqueOpeners31
0.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags6
fancyCount5
fancyTags
0"he said with a hesitant grin, the light from a flickering overhead bulb catching the worry lines etched deep into his face (say catch etch)"
1"she murmured, crouching to examine the floor (murmur, crouch examine)"
2"Milo whispered behind her (whisper)"
3"Milo said sharply, stepping forward (say sharply, step)"
4"she muttered (mutter)"
79.8414%