Run: 2026-02-17-01KHMQV1DKBW9KPQEW8TQ1DEZP

Run Details

Duration:
26.1s
Cost:
$0.015527
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 stood at the mouth of the decayed escalator, the stale underground air curling around her like a warning. Flickering sodium lamps cast elongated shadows across peeling tiles and rusted piping. At her feet, shards of shattered advertising posters whispered of a time before the station went dark—before it became the Veil Market’s latest refuge. She inhaled, tasting damp stone and something acrid that set her nerves on edge. She checked her watch—worn leather strap snug against her wrist, its face catching a sliver of yellow light. The tape said “Crime Scene – Do Not Cross,” but she had already stepped over it. Protocol be damned: she needed to see with her own eyes. On the platform below, the body lay twisted in unnatural repose. Concrete pillars rose like silent sentinels around it, their surfaces etched with hasty chalk runes that glowed faintly under the forensic lamps. Quinn crouched, her sharp jaw clenched, brown eyes narrowing. The victim’s clothes were ordinary—jeans, a dark jacket—but the way the bones seemed to shift beneath the skin made her pause. There was no bullet wound, no powder burn. No sign of a struggle. Just an absence: a body left to rot in a place where no one should have been. Gloved fingers moved over the chalk lines. They weren’t graffiti. Someone had traced them with a precision that felt almost ritualistic. The lines spiraled into a circle around the corpse’s head, then fractured into jagged spokes. Quinn’s mind flickered back three years, to the night DS Morris died. She had never understood what happened to him—only that he’d been found in a ruined house, eyes wide as though he’d seen something that belonged to another realm. The pathologist called it shock. She had called it something else, and it still frightened her. A soft clack announced her colleague’s arrival. Eva Kowalski stepped into the circle of light, satchel swinging at her hip. Quinn noted the round glasses balanced on her freckled nose, the way she tucked a stray curl of red hair behind her left ear. There was a tremor in her green eyes, a mixture of excitement and…fear. “You wanted me here,” Eva said, voice low, throat tight. Quinn didn’t answer immediately. She rose and stood, arms folded across her chest. She let Eva scan the runes first. The detective watched as Eva’s fingers drifted close but never touched, as though the symbols might ignite at a wrong note. “These markings,” Eva said, voice barely above a whisper. “They’re not local. This is a binding circle—half of one, at least. Someone tried to seal something. Or they tried to open something, and didn’t finish.” Quinn tilted her head. “Binding circle? Like… occult?” Eva pushed up her glasses, then dropped her hand. “You said you’d see this for what it is, Harlow. The chalk is mixed with powdered bone—animal, I think. Very old. The lines themselves have been etched into the dust; they were drawn after the body was placed there. Someone was performing a ritual with the corpse as the focal point.” Quinn shifted her weight. Her boots scraped grit from the platform. She studied the body again: the skin pallid, veins threading like black ink beneath. The victim’s mouth sagged open in permanent surprise. She reached out with her free hand, fingertips hovering as though she could feel something in the air. “There’s no syringe marks,” Quinn said. “No signs of blunt force. No DNA swabs yet, but I’m betting on natural causes—exposure or a medical event. You’re telling me someone dragged him down here for a summoning?” Eva swallowed. She unbuckled her satchel and drew out a slim leather-bound notebook. Quinn watched her thumb turn the worn pages. The detective’s thoughts pinned themselves to that scent again—something like ozone and burnt sulfur. She recognized it, even if she didn’t want to. “Let me see that.” She held out a gloved hand. Eva hesitated, but passed the book over. Quinn’s eyes flicked across sketches of circles and scrawled Latin phrases. One diagram matched the chalk on the platform. The caption below read: ‘Ward for minor rift. Do not attempt without protective seal.’ Quinn’s breath caught. She set the notebook on the body bag nearby and crouched again, examining the runes with renewed intent. “Someone meant to protect themselves from whatever they were summoning,” she muttered. “But they botched it. That mouth—he tried to scream. And whatever came through retaliated.” She lined her gaze up with the chalk’s broken edge. “Look at this. The spokes aren’t even. Feels like they tore open, like a seam bursting under pressure.” Eva pressed a hand to her chest. “Exactly. He was an amateur. This was going to be a footnote, a curiosity in the Veil Market. Instead, he became bait.” Quinn rose slowly, scanning the vaulted ceiling. A single rusted beam groaned overhead, as though complaining at this intrusion. She swept her gaze back to Eva. “Why here? Why an abandoned Tube station?” She rubbed her chin, feeling stubble. “Because it’s on the Market’s current map. Every full moon it moves. Someone needed anonymity. And a nexus of ley lines runs beneath Camden—like a superhighway for supernatural energy.” Eva nodded. “Which would explain the rift. But why use a human subject? You don’t need a body to open a portal.” Quinn’s fingers brushed the body’s wrist. Her leather watch ticked. She removed her glove, fast and efficient, inspecting the skin. No wounds. No needles. She flexed the hand. “He wasn’t a sacrifice. He was a conduit—an anchor. But the anchor snapped.” She thought back to DS Morris again: the ineffable terror on his face, the smell that lingered in the morgue. She closed her eyes for a second. Then opened them. “And that smell is here. I can still taste it on the air.” Eva paled. “You smell it too?” Quinn nodded. She stepped away from the body, hands on her hips. “I want a sample of the chalk. Photographs, dust for lab analysis. Then I want you to call Dr. Mahoney at the British Museum—you need permission to pull every text on wards and rifts. Cross-reference every Shade artisan I can find. This compass”—she pointed to a small object half-buried beneath the victim’s elbow—“is more important than any bullet casing.” Eva knelt and lifted the brass compass. Its face was etched with protective sigils, the casing mottled with verdigris. The needle quivered, tugging toward the far wall of the station. Quinn’s pulse echoed in her ears. “You found one,” Eva said softly. “A Veil Compass.” Quinn closed her hand around it, mindful of the sigils. “Crafted by a Shade artisan,” she murmured. “Attuned to rifts and portals. It’s pointing to the epicenter.” She stood and walked to the end of the platform, compass held at eye level. The needle swung like a pendulum, settling toward a tunnel swallowed in darkness. “Run a line of tape there,” Quinn ordered. “And keep every soul out until we have backup. I want SWAT, I want the Bureau of Supernatural Affairs, and I want hazmat suits for everyone. Because whatever’s on the other side of that tunnel isn’t human.” Eva closed the satchel with a snap, tucking her hair behind her ear so sharply it must have hurt. “I’ll get the permits. I’ll warn them. But Harlow… be careful.” Quinn pocketed the compass, slipping it into an inner coat pocket. The chill of brass slid through the fabric. She looked back at the runes, at the body. “This isn’t a homicide,” she said. “It’s an accident. And if we don’t seal that tunnel quickly, it’ll be a massacre.” She turned, shoulders squared, and strode toward the mouth of the tunnel. The stench grew stronger with every step: ozone, sulfur, something under it that tasted of old smoke and long-buried fear. Her watch ticked. The station groaned. Somewhere deep in the darkness, a faint scrape answered her approach. She paused. “Detective Quinn?” Eva’s voice drifted from the platform. “Be careful.” Quinn didn’t answer. She pressed forward until the beam of her flashlight cut a path into the black. She didn’t know what waited beyond the chalk circle, but she would be ready. She always was. And this time, she would not let it catch her by surprise.
created_at"2026-02-17T02:46:26.695408+00:00" 2/17/2026, 2:46:26 AM
model"openai/o4-mini-2025-04-16"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3689
moderation_latency(null)
generation_time25939
tokens_prompt923
tokens_completion2494
native_tokens_prompt835
native_tokens_completion3320
native_tokens_completion_images0
native_tokens_reasoning1472
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"
usage0.0155265
router(null)
provider_responses
0
id"resp_0305182e98133016016993d667f428819388593b37105503f4"
status200
is_byokfalse
latency144
endpoint_id"bd121898-b27c-4e2c-bc92-278627465a54"
provider_name"OpenAI"
model_permaslug"openai/o4-mini-2025-04-16"
api_type"completions"
id"gen-1771296359-TEh1ONGzeDTVJoiN9SSz"
upstream_id"resp_0305182e98133016016993d667f428819388593b37105503f4"
total_cost0.0155265
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
22.2222% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags9
adverbTagCount3
adverbTags
0"The tape said but she had already stepped over it. [already]"
1"Eva said, voice barely above a whisper [barely]"
2"Eva said softly [softly]"
56.9892% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1395
totalAiIsmAdverbs6
found
0
adverb"quickly"
count1
1
adverb"sharply"
count1
2
adverb"slowly"
count1
3
adverb"softly"
count1
4
adverb"barely above a whisper"
count1
5
adverb"very"
count1
highlights
0"quickly"
1"sharply"
2"slowly"
3"softly"
4"barely above a whisper"
5"very"
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)
21.1470% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1395
totalAiIsms11
found
0
word"sentinels"
count1
1
word"flickered"
count1
2
word"flicked"
count1
3
word"quivered"
count1
4
word"fractured"
count1
5
word"jaw clenched"
count1
6
word"weight"
count1
7
word"echoed"
count1
8
word"etched"
count3
highlights
0"sentinels"
1"flickered"
2"flicked"
3"quivered"
4"fractured"
5"jaw clenched"
6"weight"
7"echoed"
8"etched"
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
narrationSentences101
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount3
hedgeCount2
narrationSentences101
filterMatches
0"watch"
hedgeMatches
0"seemed to"
1"happened to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount2
totalSentences116
matches
0"see that.” She"
1"seal that tunnel"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs29
mean47.59
std27.23
cv0.572
sampleLengths
0116
193
292
357
410
541
635
78
860
951
1036
1144
1250
1375
1429
1568
1622
1784
186
1971
2036
219
2255
2345
2430
2549
2651
2710
2847
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount2
totalSentences101
matches
0"been found"
1"was etched"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount0
totalVerbs182
matches(empty)
94.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount962
adjectiveStacks1
stackExamples
0"slim leather-bound notebook."
adverbCount26
adverbRatio0.02702702702702703
lyAdverbCount7
lyAdverbRatio0.007276507276507277
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences116
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences116
mean11.9
std9.29
cv0.781
sampleLengths
021
112
224
314
418
516
611
711
822
99
1021
118
125
1317
147
153
1611
1715
1812
1928
205
2111
227
2313
2424
2513
2610
274
289
297
3021
319
3226
334
344
359
3651
374
387
3914
408
4118
426
4330
442
4511
468
4714
489
4910
56.0345% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.3620689655172414
totalSentences116
uniqueOpeners42
0.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags9
fancyCount7
fancyTags
0"The tape said but she had already stepped over it. (say already step)"
1"Eva said, voice low, throat tight (say, voice)"
2"Eva said, voice barely above a whisper (say, voice barely)"
3"she muttered (mutter)"
4"Eva said softly (say softly)"
5"she murmured (murmur)"
6"Quinn ordered (order)"
79.4349%