Run: 2026-02-17-01KHMQJWDAFGRXSK7Z9Z2D5GQQ

Run Details

Duration:
16.0s
Cost:
$0.006243
Provider:
Google AI Studio

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 in the abandoned Mornington Crescent tube station didn't just smell like damp concrete and old iron; it carried a metallic, ozone tang that made the hair on Harlow Quinn’s arms stand at attention. She stepped over a rusted rail, the beam of her Maglite cutting a clean circle through the subterranean gloom. Water dripped somewhere deep in the tunnels, a rhythmic, lonely sound that echoed off the curved tiled walls. Harlow checked the worn leather watch on her left wrist. 3:14 AM. Above them, Camden slept, oblivious to the labyrinthine secrets rotting beneath its streets. "Watch your step, Quinn. The grease down here hasn't been cleaned since the Blitz," uniform sergeant Miller called out. He was standing twenty yards ahead, his own flashlight dancing over a pile of crates that looked entirely too new for a station that had been officially sealed for decades. Harlow didn't answer. She moved with a calculated, military precision, her boots finding the dry spots on the sleeper ties. She adjusted the collar of her coat, her sharp jaw set. She had eighteen years on the force, most of it spent in the grit of the Metropolitan Police, but the last three years had changed the way she looked at shadows. Ever since DS Morris had disappeared into a London fog that seemed to swallow sound and light alike, Harlow had stopped believing in simple explanations. She reached the center of the platform. This wasn't just a squatter’s camp. The crates were stamped with symbols she didn't recognize—interlocking circles and jagged lines that looked like a language written by someone with a fever. Between the crates lay the body of a man in a silk suit, facedown, his fingers splayed toward a small object that glinted in the dust. "Clear-cut robbery gone wrong," Miller said, shuffling over. He sounded tired, his voice thick with the desire to be back in a warm precinct office. "Looks like he was meeting someone for a high-end hand-off. Probably slipped the wrong guy a briefcase of cash, got a knife in the ribs for his trouble. We found some empty jewelry boxes in that pile over there." Harlow knelt by the body, ignoring the ache in her knees. She didn't touch the victim yet. She watched the way he fell. "Where’s the blood, Miller?" Miller blinked, shining his light around the man’s torso. "Internal hemorrhaging? Or maybe he was slumped over before he bled out. Dress like that in Camden at three in the morning, you’re asking for a bad time." "He didn't die from a knife," Harlow muttered. She leaned closer. There were no wounds on his back, no tears in the expensive charcoal wool of his jacket. She gently turned the man’s head with a gloved hand. His eyes were wide, the pupils blown out, and his skin had a translucent, waxy quality, as if the life had been sucked out of him through a straw. "And look at his hand." Just inches from the man’s cooling fingertips lay a small brass compass. It was covered in a thick patina of verdigris, the green oxidation crusting over deep-etched sigils on its casing. Harlow’s heart gave a dull, heavy thud against her ribs. She’d seen markings like that once before, scribbled in Morris’s final notebook. "Evidence bag," she snapped. "Quinn, come on, it’s a compass. Probably an antique he was trying to hawk," Miller said, though he reached into his kit. Harlow didn't wait for him. She hovered her hand over the device. It was humming. Not a sound, but a vibration that traveled through the air, hitting her in the teeth. The needle wasn't pointing North. It was spinning in a frantic, jittery circle, occasionally snapping toward a bricked-up archway at the far end of the platform. "This is the Veil Market," Harlow whispered, the realization settling in her gut like lead. "The what?" "A ghost story," she said, her voice tight. "At least, that’s what the informants call it. A black market that moves every full moon. They sell things that shouldn't exist. Information, substances, relics." She looked at the man in the suit. "He wasn't a victim of a robbery. He was a buyer. And he didn't bring enough to the table." She stood up and scanned the perimeter. Her eyes caught a flicker of movement near a stack of crates twenty feet away. A shock of curly red hair and the glint of round glasses. "Police! Don't move!" Harlow shouted, her hand flying to her holster out of pure reflex. The figure didn't run. Instead, a young woman stepped into the light, looking more annoyed than frightened. She wore a heavy green coat and carried a worn leather satchel that looked heavy enough to be filled with lead. She was busy tucking a stray curl behind her left ear with a nervous, rapid motion. "I’m not a criminal, Detective," the girl said, her voice surprisingly steady despite her frantic habit. "I’m a researcher. And if you touch that compass without a lead lining, you’re going to have a very difficult headache for the next three days." "Identify yourself," Harlow commanded, her flashlight beam pinning the girl. "Eva Kowalski. I work at the British Museum. Restricted archives," the girl said, squinting against the light. "I heard the chatter on the fringe boards. I knew the Market was moving through Mornington this month. I was hoping to beat the cleanup crew." Harlow didn't lower her light. "You’re a long way from the museum, Miss Kowalski. And you’re standing over a dead body in a restricted Tube tunnel." Eva stepped closer, her freckled complexion pale under the harsh LED glow. She looked down at the victim with a mixture of pity and professional curiosity. "He’s not dead because of the Market. He’s dead because he tried to use a bone token that didn't belong to him. The wards on the entry point... they’re quite literal about identity theft." "Bone tokens? Wards?" Miller scoffed, stepping forward. "Look, kid, stay right there. You’re coming in for questioning." "Wait," Harlow said, her eyes narrowing as she watched Eva. The girl wasn't looking at the officers; she was looking at the brass compass. "You know what that tool is?" "It’s a Veil Compass," Eva said, her gaze drifting to the spinning needle. "Crafted by a Shade artisan. It doesn't find magnetic North, Detective. It finds rifts. Portals where the membrane between here and... somewhere else... is thin. The needle is spinning because the Market just folded. The energy hasn't dissipated yet." Harlow felt a familiar chill. This was the missing link. For three years, she’d been chasing ghosts, looking for a logical explanation for why DS Morris had walked into a warehouse and never walked out. The department had called it a mental break, a disappearance, a tragedy. But Harlow had seen the way the air had shimmered behind him. "Why are you here, Eva?" Harlow asked, her voice dropping an octave. Eva reached into her satchel, pulling out a small, leather-bound notebook. She looked at Harlow, and for the first time, the detective saw a spark of shared obsession in the girl’s green eyes. "Because things are leaking through. This man—he was a collector. Small-time. He thought he could buy his way into the underground. But you can’t buy entry to the Veil Market unless you know the language." Harlow looked back at the compass. The needle suddenly stopped its frantic spinning and locked dead onto the bricked-up archway. "Miller, get the crime scene tape up. Call for a forensics sweep, tell them to prioritize the chemical traces on the victim's skin," Harlow ordered. "Quinn, you’re not seriously listening to this—" "Do it, Miller!" Harlow snapped. She turned back to Eva, who was already shivering in the damp cold. "You’re coming with me, Miss Kowalski. But we’re not going to the precinct. You’re going to tell me exactly what those sigils mean, and why that compass is pointing at a solid brick wall." Eva tucked her hair behind her ear again, a small, knowing smile touching her lips. "It’s not a wall, Detective. It’s a door. You just haven't learned how to knock yet." Harlow Quinn looked at the worn leather watch on her wrist. The second hand was moving backward. She didn't panic. For the first time in three years, she felt like she was finally heading in the right direction. She reached down, picked up the brass compass—ignoring the sharp, static shock that raced up her arm—and tucked it into her pocket. "Show me," Harlow said.
created_at"2026-02-17T02:41:48.955597+00:00" 2/17/2026, 2:41:48 AM
model"google/gemini-3-flash-preview-20251217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency868
moderation_latency(null)
generation_time15899
tokens_prompt923
tokens_completion2169
native_tokens_prompt883
native_tokens_completion1934
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"STOP"
usage0.0062435
router(null)
provider_responses
0
status200
is_byokfalse
latency868
endpoint_id"6e82f652-2693-4b60-bbe0-7362d6e345f0"
provider_name"Google AI Studio"
model_permaslug"google/gemini-3-flash-preview-20251217"
api_type"completions"
id"gen-1771296092-bJ6SVA9YWwuEQrbvYyIk"
upstream_id(null)
total_cost0.0062435
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags17
adverbTagCount1
adverbTags
0"the girl said, her voice surprisingly steady despite her frantic habit [surprisingly]"
79.1956% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1442
totalAiIsmAdverbs3
found
0
adverb"gently"
count1
1
adverb"suddenly"
count1
2
adverb"very"
count1
highlights
0"gently"
1"suddenly"
2"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)
37.5867% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1442
totalAiIsms9
found
0
word"flicker"
count1
1
word"shimmered"
count1
2
word"glint"
count1
3
word"silk"
count1
4
word"calculated"
count1
5
word"magnetic"
count1
6
word"dancing"
count1
7
word"echoed"
count1
8
word"etched"
count1
highlights
0"flicker"
1"shimmered"
2"glint"
3"silk"
4"calculated"
5"magnetic"
6"dancing"
7"echoed"
8"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
narrationSentences81
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount2
hedgeCount1
narrationSentences81
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount1
totalSentences98
matches
0"touch that compass"
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs37
mean38.65
std22.68
cv0.587
sampleLengths
072
125
249
387
463
564
627
737
872
953
104
1122
1257
1315
142
1560
1634
1715
1854
1942
2010
2143
2226
2360
2417
2530
2652
2759
2812
2968
3020
3125
327
3352
3431
3560
364
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount3
totalSentences81
matches
0"were stamped"
1"been sucked"
2"was covered"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount6
totalVerbs153
matches
0"was standing"
1"was humming"
2"wasn't pointing"
3"was spinning"
4"was looking"
88.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount952
adjectiveStacks2
stackExamples
0"over deep-etched sigils"
1"small, leather-bound notebook."
adverbCount27
adverbRatio0.028361344537815126
lyAdverbCount9
lyAdverbRatio0.009453781512605041
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences98
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences98
mean14.59
std9.21
cv0.631
sampleLengths
035
119
218
310
42
513
619
730
83
917
1011
1131
1225
137
146
1524
1626
178
1817
1939
2011
216
226
234
249
2528
268
273
2817
2910
3029
315
3212
3319
3410
3512
364
3722
385
397
403
4116
425
4321
4415
452
468
4733
4819
497
68.0272% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.4387755102040816
totalSentences98
uniqueOpeners43
0.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags17
fancyCount13
fancyTags
0"uniform sergeant Miller called out (call out)"
1"Miller said, shuffling over (say, shuffle)"
2"Harlow muttered (mutter)"
3"she snapped (snap)"
4"Miller said, though he reached into his kit (say, reach)"
5"Harlow whispered, the realization settling in her gut like lead (whisper, settle in)"
6"shouted (shout)"
7"Harlow commanded, her flashlight beam pinning the girl (command, pin)"
8"the girl said, squinting against the light (say, squint)"
9"Harlow said, her eyes narrowing as she watched Eva (say, narrow watch)"
10"Eva said, her gaze drifting to the spinning needle (say, drift)"
11"Harlow ordered (order)"
12"snapped (snap)"
86.6359%