Run: 2026-02-25-01KJ9543NMN5A3EDZY2JK14V6P

Run Details

Duration:
20.8s
Cost:
$0.010227
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 rapid response vehicle shuddered to a halt, rattling its windows in the cavernous space. Detective Harlow Quinn exited first, the heels of her practical boots echoing a sharp staccato against the grimy concrete. The air, thick with the damp-earth tang of the London Underground, held something else too: the cloying sweetness of unfamiliar incense, the sharp tang of something metallic, and an unmistakable, ancient scent, like dried blood and fear. She cataloged it all, even as her eyes, the colour of rich earth, swept the scene with military precision. This wasn’t a crime scene. Not really. Not in the way she knew. This was an unearthed secret. The abandoned Tube station beneath Camden sprawled before her, a forgotten cathedral of grimy tiles and rusted iron. Floodlights, hastily erected by the forensics team, chased away some of the encroaching gloom, starkly illuminating the impossible. Stalls, some still laden with bizarre goods, stood crookedly against the tunnel walls. Jars of shimmering dust, intricate cages holding unseen things, leathery bundles, and wickedly curved blades gleamed under the harsh light. A single, overturned cart spilled iridescent scales onto the platform. Uniformed officers moved through it all, their expressions a mix of awe and bewildered professionalism, like tourists in an alien museum. “Detective Quinn.” Sergeant Miller, a young, earnest man, met her halfway across the platform, a forensics mask hanging uselessly from one ear. He scrubbed a hand over his crew cut. “Didn’t think we’d get you out for this one.” Harlow merely raised an eyebrow. Her closely cropped salt-and-pepper hair caught the floodlight, tiny silver threads glinting. “Something tells me this isn’t your average mugging.” She glanced at the entrance, a gaping maw in the tunnel wall, where a scatter of small, bleached bone tokens lay discarded on the ground. Entry fee, she thought. To where? “No, ma’am. Definitely not.” Miller swallowed. “Victim’s just ahead. Professor Kowalski’s already had a look.” Harlow’s sharp jaw tightened almost imperceptibly at the mention of the name. Eva Kowalski. The Met had brought the 'occult expert' in after Morris. Harlow remembered her perfectly, a nervous but brilliant young woman, thick round glasses perched on her nose, a satchel perpetually overflowing with ancient texts. A research assistant from the British Museum, no less. But a consultant couldn't be a colleague, not in the way Miller meant. She was an outsider, something Harlow never forgot even as she’d been forced to acknowledge the truth of Kowalski’s insights, however outlandish. She moved with an almost silent gait, heading towards the gathering of forensic technicians and a figure with curly red hair she knew instantly. The platform sloped towards an old service tunnel, where the crime scene tape glowed orange in the artificial light. The victim lay slumped against the arched entrance of the tunnel, a male, early forties, well-dressed, but now utterly still. His eyes stared vacantly at the grimy ceiling. No obvious signs of struggle. No bullet wounds, no stab wounds. He looked… drained. The only overt injury was a dark, bruised mark on his neck, like a handprint applied with unnatural force. Eva Kowalski looked up from where she knelt beside the body, her green eyes widening slightly behind her round glasses. She wore a pristine white forensics suit, an absurd contrast to her perpetually rumpled appearance and the worn leather satchel slung over her shoulder, even inside the protective gear. She tucked a wayward curl of red hair behind her left ear, a tell-tale nervous habit. “Detective Quinn,” Eva said, her voice a little breathless. “Good, you’re here. This is… quite something.” “So I see.” Harlow knelt, keeping a respectful distance from the body, letting her gaze sweep over every detail. The victim’s hands were splayed, unusually flat. Near his left hand, partially obscured by his sleeve, was a small, ornate compass. Its brass casing showed a green patina of verdigris, and the face was etched with strange, intricate sigils. Its needle, however, wasn’t pointing north. It quivered, pointing erratically towards the darkness of the service tunnel. Eva followed her gaze. “Ah, that. It’s an antique of some sort. The forensics team scanned it. Seems to be a type of… shadow compass, perhaps. Not standard navigation. But decorative, mostly, I’d wager.” She paused, then added, “Could be a trinket he purchased here. The market is known for exotic curios.” “You’re familiar with this market, Professor?” Harlow’s tone was carefully neutral. Eva ducked her head slightly. “Through my research, yes. The Veil Market. It’s a travelling underground network. Specialises in… esoteric goods. Legend has it it moves locations every full moon. Apparently, this abandoned station was its last stop.” “So, ‘esoteric goods’ might include whatever drained this man?” Harlow’s voice was low, cutting through the hum of generator lights. Eva shifted, her freckled complexion seeming a shade paler under the harsh lights. “The primary cause of death, according to the preliminary assessment, seems to be cardiac arrest. Possibly induced by extreme panic or some kind of rapid toxin. There’s a faint residue found on the neck, where that contusion is. Forensics are testing it, but it’s… unusual. Nothing in their standard database.” Harlow touched the worn leather watch on her left wrist, a habitual gesture. “And the compass?” “As I said, a curio. I believe the sigils are protective in nature, common in various ancient cultures intended to ward off malign presences.” Eva’s voice was becoming more assured, falling into lecture mode. “Many belief systems hold that such symbols can influence energy fields, or even direct spiritual essence, but primarily in a passive-defensive capacity.” Harlow studied Eva. The young woman’s interpretation was so… *academic*. So rational, even when discussing the irrational. It was almost too neat. She was presenting a story that fit her field, but perhaps deliberately excluded the more unsettling, active possibilities. Harlow had seen enough after Morris’s death to know better. She leaned closer to the victim, ignoring Eva’s nervous cough. The handprint on the neck. It was dark, almost black, and the skin around it was unnaturally cold. But it wasn’t just a print. There were minute, almost invisible striations radiating out from the main impression, like tiny threads pulling at the skin, or etched into it. “And these marks, Professor?” Harlow indicated the delicate tracery with her chin. They were barely visible, requiring a keen eye. Forensics might miss them, or dismiss them as incidental. Eva peered closer, her forehead creasing. “Hmm. I… I hadn’t noticed those. Very faint. Suggestive of scarring, or perhaps a residual burn? Again, possibly linked to the toxin.” “Or something else entirely.” Harlow’s gaze swept the surrounding area. The crime scene tape had been set up to encompass the victim and a small radius around him. But Harlow looked beyond it, at the strange stalls, at the shadows just outside the floodlight’s reach. The floor around the body was clean, almost unnaturally so. No footprints except those of the responding officers. No struggle. No signs of anything being dragged. “He died here, against this wall, precisely where he was found,” Eva stated, as if anticipating Harlow’s thought process. “How do you know that, Professor?” Eva hesitated. “Well, the blood spatter analysis indicates he was in this position when the trauma occurred. It’s a clean fall backwards.” Harlow stood, turning her back to the body for a moment, letting her eyes graze the rest of the abandoned market. The floor. The concrete floor of the platform showed subtle variations in texture. Near the victim, it was pristine. Farther away, it was grimy, wet with an oily sheen. But then, as her eyes travelled to a section closer to the entrance, just outside the marked-off scene, she saw a darker patch. A damp, black footprint. Too big for a human. Too fluid in its edges. Animal? No, something else. And then another, faintly luminous, just beyond a discarded stall selling what looked like skeletal remains. No, the victim hadn't just *fallen*. Someone had put him there. “This market,” Harlow turned back to Eva, her brown eyes intense. “It’s a black market, you said. What do they trade in? Ancient texts? Or something… more potent?” Eva fidgeted with her glasses. “They trade in enchanted goods, banned alchemical substances, information…” She trailed off, avoiding Harlow’s gaze. “And what about extraction? Extraction of… essences?” Eva’s head snapped up. Her green eyes met Harlow’s, a flicker of something she tried to hide behind academic detachment. Alarm. Fear, perhaps. “The marks on his neck aren’t burns, Professor,” Harlow continued, her voice gaining a quiet edge, “They’re suction marks. Like something *fed* on him. And that compass isn't just a curio. It’s twitching. Why? Because something supernatural happened here. Something very unnatural. And it’s still here. That tunnel.” She pointed to the black maw behind the victim. The Veil Compass quivered again, its ancient needle now jabbing insistently towards the darkness. Eva opened her mouth, then closed it. Her usual nervous energy had coalesced into something rigid. The easy academic explanations had evaporated. “You said protective sigils,” Harlow pressed. “Perhaps they were meant to protect from what’s beyond that tunnel. Or from whatever crafted that compass in the first place.” She remembered the intel reports she’d been given on the Veil Market, from a source that had vanished shortly after. She’d dismissed most of it then. But Morris… he’d believed. He’d seen things. Unexplained circumstances. Supernatural origins. Harlow took a deep breath, the strange scents of the market filling her lungs. The metallic tang grew stronger. Not just old blood, but fresh purpose. She had a feeling she knew what was through that service tunnel. A rift. A portal. And whatever had drained the victim had likely retreated there. “And you, Professor,” Harlow said, her voice dropping, “Why didn’t you want us to look too closely?” She didn’t wait for an answer. Instead, she took a powerful flashlight from one of the forensics techs, ignoring his startled expression. She stared at the service tunnel, then back at the victim. Then at Eva, whose eyes were wide and unblinking behind her glasses. The compass on the ground spun violently, then settled, its needle pointing directly into the blackness. The air grew colder. “Sergeant Miller,” Harlow called, her voice echoing. “Secure this area. No one goes in or out. And I want a full sweep of the entire station. I want to know what’s been moving in these shadows. Every inch.” She flicked on the flashlight, its powerful beam cutting through the dense gloom of the service tunnel. The light was swallowed almost instantly by the profound darkness. But for a split second, something had glimmered at the very edge of the beam, something that wasn't metal or stone. Something that looked like a pair of watching eyes. Harlow took a step forward, towards the tunnel, her resolve hardening. The military precision returned to her bearing. She wouldn't let this be another Morris. Not again.
created_at"2026-02-25T01:02:57.211Z" 2/25/2026, 1:02:57 AM
model"google/gemini-2.5-flash"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1204
moderation_latency(null)
generation_time20756
tokens_prompt923
tokens_completion3973
native_tokens_prompt883
native_tokens_completion3985
native_tokens_completion_images0
native_tokens_reasoning1496
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"
usage0.0102274
router(null)
provider_responses
0
endpoint_id"16c01e26-9b91-4d22-b487-ed35634b017d"
is_byokfalse
latency1204
model_permaslug"google/gemini-2.5-flash"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771981377-vh6LqWB0CFJ3wPHOPxHm"
upstream_id(null)
total_cost0.0102274
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
94.74% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags19
adverbTagCount2
adverbTags
0"She paused then [then]"
1"Harlow turned back [back]"
dialogueSentences32
tagDensity0.594
leniency1
rawRatio0.105
effectiveRatio0.105
66.98% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1817
totalAiIsmAdverbs12
found
0
adverb"really"
count1
1
adverb"wickedly"
count1
2
adverb"perfectly"
count1
3
adverb"utterly"
count1
4
adverb"slightly"
count2
5
adverb"carefully"
count1
6
adverb"deliberately"
count1
7
adverb"very"
count3
8
adverb"precisely"
count1
highlights
0"really"
1"wickedly"
2"perfectly"
3"utterly"
4"slightly"
5"carefully"
6"deliberately"
7"very"
8"precisely"
100.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found(empty)
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
25.70% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1817
totalAiIsms27
found
0
word"echoing"
count2
1
word"cataloged"
count1
2
word"gloom"
count2
3
word"intricate"
count2
4
word"eyebrow"
count1
5
word"glinting"
count1
6
word"maw"
count2
7
word"pristine"
count2
8
word"etched"
count2
9
word"quivered"
count2
10
word"scanned"
count1
11
word"standard"
count2
12
word"familiar"
count1
13
word"database"
count1
14
word"anticipating"
count1
15
word"flicker"
count1
16
word"flicked"
count1
17
word"profound"
count1
18
word"resolve"
count1
highlights
0"echoing"
1"cataloged"
2"gloom"
3"intricate"
4"eyebrow"
5"glinting"
6"maw"
7"pristine"
8"etched"
9"quivered"
10"scanned"
11"standard"
12"familiar"
13"database"
14"anticipating"
15"flicker"
16"flicked"
17"profound"
18"resolve"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences137
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences137
filterMatches
0"watch"
hedgeMatches
0"tried to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences149
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen57
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans3
markdownWords3
totalWords1817
ratio0.002
matches
0"academic"
1"fallen"
2"fed"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions11
unquotedAttributions0
matches(empty)
50.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions64
wordCount1365
uniqueNames17
maxNameDensity1.83
worstName"Harlow"
maxWindowNameDensity3.5
worstWindowName"Harlow"
discoveredNames
Harlow25
Quinn1
London1
Underground1
Tube1
Camden1
Miller3
Entry1
Kowalski3
Met1
British1
Museum1
Eva17
Morris3
Veil2
Compass1
Market1
persons
0"Harlow"
1"Quinn"
2"Underground"
3"Camden"
4"Miller"
5"Kowalski"
6"Met"
7"Eva"
8"Morris"
9"Compass"
10"Market"
places
0"London"
1"British"
globalScore0.584
windowScore0.5
68.48% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences92
glossingSentenceCount3
matches
0"as if anticipating Harlow’s thought process"
1"looked like skeletal remains"
2"looked like a pair of watching eyes"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.55
wordCount1817
matches
0"Not just old blood, but fresh purpose"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences149
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs41
mean44.32
std27.51
cv0.621
sampleLengths
090
118
2100
339
456
515
692
743
861
965
1016
1175
1252
1311
1438
1520
1663
1716
1856
1950
2057
2129
2228
2371
2419
256
2622
27107
2811
2928
3020
317
3223
3371
3422
3564
3652
3739
3843
3995
4027
89.90% Passive voice overuse
Target: ≤2% passive sentences
passiveCount6
totalSentences137
matches
0"been forced"
1"were splayed"
2"was etched"
3"being dragged"
4"been given"
5"was swallowed"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs213
matches
0"wasn’t pointing"
1"was presenting"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences149
ratio0
matches(empty)
86.67% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1116
adjectiveStacks0
stackExamples(empty)
adverbCount61
adverbRatio0.05465949820788531
lyAdverbCount23
lyAdverbRatio0.02060931899641577
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences149
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences149
mean12.19
std10.21
cv0.838
sampleLengths
015
119
237
319
45
52
66
75
818
918
1013
1120
1210
1321
1422
158
169
175
1812
1933
204
212
226
239
2412
252
2610
2724
289
2913
3022
3124
3219
3320
348
355
366
372
381
3919
4020
4129
4216
439
447
4519
467
4714
4818
496
51.45% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats15
diversityRatio0.3691275167785235
totalSentences149
uniqueOpeners55
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount5
totalSentences116
matches
0"So rational, even when discussing"
1"Too big for a human."
2"Too fluid in its edges."
3"Instead, she took a powerful"
4"Then at Eva, whose eyes"
ratio0.043
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount28
totalSentences116
matches
0"She cataloged it all, even"
1"He scrubbed a hand over"
2"Her closely cropped salt-and-pepper hair"
3"She glanced at the entrance,"
4"She was an outsider, something"
5"She moved with an almost"
6"His eyes stared vacantly at"
7"She wore a pristine white"
8"She tucked a wayward curl"
9"Its brass casing showed a"
10"Its needle, however, wasn’t pointing"
11"It quivered, pointing erratically towards"
12"She paused, then added"
13"It was almost too neat."
14"She was presenting a story"
15"She leaned closer to the"
16"It was dark, almost black,"
17"They were barely visible, requiring"
18"She trailed off, avoiding Harlow’s"
19"Her green eyes met Harlow’s,"
ratio0.241
72.07% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount90
totalSentences116
matches
0"The rapid response vehicle shuddered"
1"Detective Harlow Quinn exited first,"
2"The air, thick with the"
3"She cataloged it all, even"
4"This wasn’t a crime scene."
5"This was an unearthed secret."
6"The abandoned Tube station beneath"
7"Floodlights, hastily erected by the"
8"Jars of shimmering dust, intricate"
9"A single, overturned cart spilled"
10"Sergeant Miller, a young, earnest"
11"He scrubbed a hand over"
12"Harlow merely raised an eyebrow."
13"Her closely cropped salt-and-pepper hair"
14"She glanced at the entrance,"
15"Entry fee, she thought."
16"Harlow’s sharp jaw tightened almost"
17"The Met had brought the"
18"Harlow remembered her perfectly, a"
19"A research assistant from the"
ratio0.776
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences116
matches(empty)
ratio0
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences52
technicalSentenceCount1
matches
0"She was presenting a story that fit her field, but perhaps deliberately excluded the more unsettling, active possibilities."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags19
uselessAdditionCount6
matches
0"Eva said, her voice a little breathless"
1"Eva stated, as if anticipating Harlow’s thought process"
2"Harlow turned back, her brown eyes intense"
3"Harlow continued, her voice gaining a quiet edge,"
4"Harlow said, her voice dropping,"
5"Harlow called, her voice echoing"
25.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags7
fancyCount4
fancyTags
0"Eva stated (state)"
1"Harlow continued (continue)"
2"Harlow pressed (press)"
3"She remembered (remember)"
dialogueSentences32
tagDensity0.219
leniency0.438
rawRatio0.571
effectiveRatio0.25
81.0327%