Run: 2026-02-17-01KHMR4S4KME20KKVG8P1C3M51

Run Details

Duration:
9.9s
Cost:
$0.000642
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 underground station yawned wide and dark, its abandoned platform flickering faintly beneath the yellow glow of a battered flashlight. Detective Harlow Quinn adjusted her leather watch, glancing at the time. Nearly midnight. The air was thick with the scent of damp concrete, broken metal, and something else—something darker, underlying. She stepped carefully over a tangle of shattered glass and scattered debris, her eyes sharp despite the gloom. The station had been closed for years, but tonight, there was an odd sense of activity—noises muffled and muffling, almost as if the darkness itself was listening. Standing a few steps from the center of the platform was her colleague, Detective Evans, shivering slightly beneath an overcoat that looked too thin for the cold underground air. He pointed toward a set of footprints leading toward a tunnel entrance obscured by shadows. "It's fresh," Evans muttered, voice hushed. "Likewise, no signs of forced entry. No blood—nothing that screams violent struggle." Quinn knelt, running gloved fingers cautiously along the cracked edge of a jagged metal shard. The evidence didn't make sense. No blood spatter, no signs of a fight—just a faint trail of footprints rising and falling, as if someone had walked carefully, almost deliberately. She examined the ground, noticing a faint shimmer along the edge of one footprint. She crouched closer, eye narrowing. The surface beneath was uneven, but what caught her attention was the faint glow of something almost imperceptible near the prints. She reached into her pocket, fingers closing around her Veil Compass, the small brass thing etched with protective sigils, a gift from the market. She tapped the needle, watching it sway slightly toward the tunnel. "Evans," she said quietly, voice carrying a weight of certainty even as she sounded cautious. "Take a look at this." He followed her gaze, stepping closer. She pointed to the shimmering trail. "This isn't just dirt or moisture. Something's been here—something supernatural." She hesitated, then pulled out her phone, flipping through her notes, but the compass was already pointing—a little needle twitching faintly, lips of verdigris catching the sparse light. Evans looked skeptical. "Supernatural? Quinn, you’re past that phase." She gave him a steady look. "If this is what I think it is, you’ll want to see for yourself." She reached into her satchel, pulling out a folded piece of cloth soaked with a carefully prepared substance—part salt, part ash, an old trick to reveal magic lingering in the environment. She sprinkled it along the trail, watching as the faint shimmer intensified, the dust flickering like fleeting sparks caught in a draft. The tunnel beckoned, cold and yawning, a maw that seemed to swallow all sound. Quinn hesitated only for a second, then stepped inside, bathed in shadows. The air grew cooler, sharper, like crossing a threshold into another world. Her eyes darted, noting the contours of the tunnel walls, unmarked except for the faintest runic etchings that seemed to ripple and shift when she looked directly at them. She felt a prickle at the back of her neck, a whisper of something unseen. "Keep your wits about you," she murmured, clutching her companion's arm briefly before moving forward. The glow of her flashlight illuminated a series of glyphs carved into the tunnel walls—arcane symbols, familiar but faintly distorted, as if painted in haste or under duress. Quinn kept her gaze steady, noting how the symbols seemed to pulse faintly with a life of their own. It reminded her of the veiled energies she’d studied long ago—powers that thrived beneath the glare of ordinary sight. Then something caught her eye. Near the ground, where the footprints led, a faint ripple of blackish residue, like spilled ink, spread outward, pulsating gently. She knelt again, scraping at the surface with her fingernail. It didn’t wipe away. Instead, it shimmered, reminiscent of a protective spell—trapped, perhaps, or broken. "See this?" she said softly. "This isn’t just dirt or mud. Someone invoked something here." Evans scoffed, stepping back into the faint light. "You’re telling me a ghost — or whatever’s lurking — left that behind?" "I’m telling you," Quinn said, voice low, "that someone or something doesn’t want us here. And I want to know why." Suddenly, the needle of her Veil Compass jerked sharply, toward a small alcove to their left. Quinn’s heart quickened. She had learned long ago to trust her instincts—and her tools. "Stop," she ordered quietly, raising a hand. “If there's a rift or portal nearby, it’ll be sensitive.” They advanced toward the alcove, where a faint, unnatural shimmer hung like a curtain of smoke. She gestured for Evans to stay back, then reached out cautiously. As her hand swept through the mist, it rippled violently, then dispersed like a crack in a thin sheet of glass. A faint whisper of voices echoed. Not voices—more like echoes of thought, unseen currents stirring the air. Quinn felt her skin prick with anticipation, her mind tuning into the whisperings that danced behind her eyes. “Hold up,” she whispered, voice tight with focus. “This is definitely a nexus point. Someone is messing with the veils out here.” Evans looked wary. "Are you saying—" "Someone’s trying to open—or close—a portal." The compass finally steadied, the needle pointing unwaveringly toward a deeper, darker part of the tunnel. And she knew, right then, that what lay beyond was no ordinary disturbance. Something was waking, or breaking free. It explained the strange residue, the glyphs, and the shimmer—what others had missed in their hurried scans. Quinn stepped back, eyeing the tunnel with a mixture of caution and resolve. “Evans, we need backup. Without it, this gets even worse. And I suspect we’re not just dealing with some petty supernatural prank. This—” she gestured at the residue, the glyphs, the shimmering light—“this is something ancient. Something dangerous.” He looked uncertain but nodded. Together, they prepared to move further into the darkness, senses on high alert. The veil was thin here, and whatever lurked beyond was stirring. Quinn’s fingers tightened around her satchel, feeling the weight of her knowledge and her duty. The shadows whispered again, and she was already calculating her next move—to close the rift, or to understand what it was trying to tell her. Because something hidden deep beneath this abandoned station had been waiting. And now, it was awake.
created_at"2026-02-17T02:51:29.356164+00:00" 2/17/2026, 2:51:29 AM
model"openai/gpt-4.1-nano-2025-04-14"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency391
moderation_latency(null)
generation_time9731
tokens_prompt923
tokens_completion1712
native_tokens_prompt836
native_tokens_completion1397
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"
usage0.0006424
router(null)
provider_responses
0
id"resp_0ee4b9d6ced5396f016993d7a724008193992eed1e0780aefd"
status200
is_byokfalse
latency142
endpoint_id"9251cee5-5503-4be9-9439-7ae21ff062a3"
provider_name"OpenAI"
model_permaslug"openai/gpt-4.1-nano-2025-04-14"
api_type"completions"
id"gen-1771296679-k4IgoxTfROSSctZJuInb"
upstream_id"resp_0ee4b9d6ced5396f016993d7a724008193992eed1e0780aefd"
total_cost0.0006424
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
totalTags7
adverbTagCount3
adverbTags
0"she said quietly, voice carrying a weight of certainty even as she sounded cautious [quietly]"
1"she murmured, clutching her companion's arm briefly before moving forward [briefly]"
2"she ordered quietly, raising a hand [quietly]"
0.0000% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1064
totalAiIsmAdverbs12
found
0
adverb"carefully"
count3
1
adverb"cautiously"
count2
2
adverb"deliberately"
count1
3
adverb"gently"
count1
4
adverb"sharply"
count1
5
adverb"slightly"
count2
6
adverb"softly"
count1
7
adverb"suddenly"
count1
highlights
0"carefully"
1"cautiously"
2"deliberately"
3"gently"
4"sharply"
5"slightly"
6"softly"
7"suddenly"
80.0000% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found
0"Evans"
100.0000% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
24.8120% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1064
totalAiIsms8
found
0
word"shimmered"
count1
1
word"calculating"
count1
2
word"anticipation"
count1
3
word"weight"
count2
4
word"echoed"
count1
5
word"echoes"
count1
6
word"etched"
count1
highlights
0"shimmered"
1"calculating"
2"anticipation"
3"weight"
4"echoed"
5"echoes"
6"etched"
100.0000% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"air was thick with"
count1
highlights
0"The air was thick with"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences67
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount3
narrationSentences67
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences76
matches(empty)
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs29
mean36.21
std19.78
cv0.546
sampleLengths
050
145
244
318
463
556
620
750
89
973
1038
1144
1215
1366
1450
1515
1621
1721
1830
1917
2048
2135
2222
236
246
2552
2651
2769
2816
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount1
totalSentences67
matches
0"been closed"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount3
totalVerbs163
matches
0"was listening"
1"was waking"
2"was trying"
76.1025% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount901
adjectiveStacks0
stackExamples(empty)
adverbCount54
adverbRatio0.05993340732519423
lyAdverbCount25
lyAdverbRatio0.02774694783573807
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences76
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences76
mean13.82
std8.67
cv0.627
sampleLengths
020
111
22
317
418
527
629
715
86
912
1015
115
1224
1314
145
1521
1624
1711
1815
195
206
216
2238
233
246
256
2645
2722
2814
2912
3012
3129
3215
3315
3428
3519
3619
375
3820
3910
404
4111
425
4310
448
4513
4621
4716
483
4911
76.3158% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats2
diversityRatio0.47368421052631576
totalSentences76
uniqueOpeners36
0.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags7
fancyCount6
fancyTags
0"Evans muttered, voice hushed (mutter, hush)"
1"she said quietly, voice carrying a weight of certainty even as she sounded cautious (say quietly, voice carrying sound)"
2"she murmured, clutching her companion's arm briefly before moving forward (murmur, clutch move)"
3"Quinn said, voice low (say, voice)"
4"she ordered quietly, raising a hand (order quietly, raise)"
5"she whispered, voice tight with focus (whisper, voice)"
73.9547%