Run: 2026-02-17-01KHMPFS5HBQN2CDTCCZ8PX0RS

Run Details

Duration:
47.9s
Cost:
$0.016170
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 off the last rung of the rusted ladder, her boots landing with a soft thud on the damp concrete floor of the abandoned Tube station. The air was thick with the scent of mildew and something else—something metallic and sharp that clung to the back of her throat. She paused, taking in the scene before her with a practiced eye. The Veil Market, usually bustling with the clandestine energy of traders and buyers, was eerily silent. The stalls, draped in shadow, stood empty, their wares hidden beneath tarps and cloths. A single bulb flickered overhead, casting a sickly yellow light that danced across the walls, highlighting the faded graffiti and the grime that had accumulated over decades of neglect. Harlow adjusted the collar of her coat, the fabric brushing against her sharp jawline, and glanced at the worn leather watch on her wrist. It was just past midnight, the hour when the Market should have been alive with the hum of whispered deals and the clink of coin. Instead, it was a crime scene, cordoned off with police tape that fluttered like ghostly banners in the stale air. "Detective Quinn," a voice called out, echoing off the tiled walls. Eva Kowalski emerged from the shadows, her curly red hair a fiery halo around her freckled face. She clutched her leather satchel tightly, the strap cutting into her shoulder. Her round glasses caught the light, reflecting it back in a way that made her green eyes seem to glow. "Eva," Harlow acknowledged, her tone clipped but not unkind. She had known Eva for some time now, their paths crossing more often than not in the tangled web of the supernatural underworld. "What have we got?" Eva tucked a stray curl behind her ear, a nervous habit that betrayed her unease. "It's strange, Harlow. The Market was supposed to move tonight, but something went wrong. The traders left in a hurry, and there was... an incident." Harlow's eyes narrowed, her instincts prickling. "An incident?" Eva nodded, gesturing for Harlow to follow her deeper into the station. "A body was found near the central stall. No one saw what happened, but there are signs of a struggle. And something else—something I can't quite explain." They walked in silence, their footsteps echoing in the cavernous space. As they approached the central stall, Harlow's gaze swept over the scene. The body lay sprawled on the ground, a man in his late thirties, his features twisted in an expression of terror. His clothes were torn, and his hands bore the marks of a desperate fight. Harlow crouched beside the body, her eyes tracing the lines of the man's face. "Who is he?" "Name's Marcus Hale," Eva supplied, consulting a small notebook she pulled from her satchel. "A known trader in enchanted goods. He was well-liked, as far as I know." Harlow nodded, her mind already piecing together the fragments of information. "And the cause of death?" "That's the thing," Eva said, her voice dropping to a whisper. "There's no obvious cause. No wounds, no signs of poison. It's as if he just... stopped." Harlow frowned, her gaze shifting to the ground around the body. The concrete was scuffed, the marks of a struggle evident in the disturbed dust and debris. But there was something else, something that caught her attention—a faint, shimmering residue that clung to the air like a veil. "What do you make of this?" Harlow asked, pointing to the residue. Eva leaned closer, her eyes narrowing behind her glasses. "I've seen something like this before, in the archives. It's a residue left by a supernatural rift, but it's unusual. It shouldn't be here, not in the Market." Harlow's mind raced, the pieces of the puzzle shifting into place. A rift, here in the Market, where none should exist. It was a dangerous anomaly, one that could explain the traders' hasty departure and the man's inexplicable death. "Do you have a Veil Compass?" Harlow asked, her voice steady despite the unease that gnawed at her. Eva nodded, reaching into her satchel and producing a small brass compass. Its casing was etched with protective sigils, the needle quivering as it sought out the nearest source of supernatural energy. She handed it to Harlow, her fingers brushing against the detective's. Harlow took the compass, its weight familiar in her hand. She watched as the needle spun, its movement erratic before it settled, pointing toward a darkened corner of the station. "There," she said, her voice low. "That's where the rift is." Eva followed her gaze, her expression thoughtful. "But why would a rift open here, now? The Market is protected, hidden from the mundane world." "That's what we need to find out," Harlow replied, rising to her feet. She slipped the compass into her pocket, her mind already working through the possibilities. "Someone wanted this rift here, and they were willing to kill to make it happen." Eva shivered, her eyes darting to the shadows that loomed around them. "Do you think it was one of the traders? Or someone else?" Harlow considered the question, her instincts telling her that the answer lay in the details, in the things that others might overlook. "I don't know yet. But I intend to find out." They stood in silence for a moment, the weight of the mystery pressing down on them. The Market, once a place of secrets and shadows, had become something else—a battleground in a war that few understood. Harlow turned to Eva, her expression resolute. "I need you to dig into the archives, find out everything you can about rifts and their connection to the Market. We need to know who could have done this, and why." Eva nodded, determination in her eyes. "I'll start tonight. There's bound to be something in the restricted section that can help." Harlow watched as Eva disappeared into the shadows, her satchel bouncing against her hip. She turned back to the scene, her mind already sifting through the evidence, searching for the thread that would unravel the truth. The Veil Market was a place of secrets, but Harlow Quinn was no stranger to secrets. She had spent her life uncovering them, peeling back the layers to reveal the truth beneath. And she would do it again, here in the depths of the abandoned Tube station, where the air was thick with mystery and the promise of danger. As she stood there, the flickering light casting long shadows across the walls, Harlow knew one thing for certain: the game was afoot, and she was ready to play.
created_at"2026-02-17T02:23:10.812668+00:00" 2/17/2026, 2:23:10 AM
model"openai/gpt-4o-2024-08-06"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency536
moderation_latency(null)
generation_time47836
tokens_prompt923
tokens_completion1661
native_tokens_prompt836
native_tokens_completion1408
native_tokens_completion_images(null)
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"
usage0.01617
router(null)
provider_responses
0
id"chatcmpl-DA51CMq8oVGs3ycd2EFiOmng7xjxk"
status200
is_byokfalse
latency466
endpoint_id"9d15935a-34e6-4a5e-a5bc-c7dda213e876"
provider_name"OpenAI"
model_permaslug"openai/gpt-4o-2024-08-06"
api_type"completions"
id"gen-1771294942-U7JlcicZlvUcPpzSLxLt"
upstream_id"chatcmpl-DA51CMq8oVGs3ycd2EFiOmng7xjxk"
total_cost0.01617
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags8
adverbTagCount0
adverbTags(empty)
90.9584% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1106
totalAiIsmAdverbs1
found
0
adverb"tightly"
count1
highlights
0"tightly"
80.0000% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found
0"Marcus"
100.0000% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
0.5425% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1106
totalAiIsms11
found
0
word"flickered"
count1
1
word"fluttered"
count1
2
word"clandestine"
count1
3
word"loomed"
count1
4
word"weight"
count2
5
word"footsteps"
count1
6
word"echoing"
count2
7
word"etched"
count1
8
word"unravel"
count1
highlights
0"flickered"
1"fluttered"
2"clandestine"
3"loomed"
4"weight"
5"footsteps"
6"echoing"
7"etched"
8"unravel"
66.6667% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches3
maxInWindow2
found
0
label"eyes widened/narrowed"
count1
1
label"air was thick with"
count2
highlights
0"eyes narrowed"
1"The air was thick with"
2"the air was thick with"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences56
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences56
filterMatches
0"watch"
hedgeMatches
0"seem to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences72
matches(empty)
79.7622% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs30
mean36.7
std15.75
cv0.429
sampleLengths
064
159
269
360
436
540
68
739
858
917
1028
1116
1227
1348
1412
1537
1639
1718
1843
1941
2024
2142
2224
2332
2436
2539
2621
2736
2859
2929
97.6190% Passive voice overuse
Target: ≤5% passive sentences
passiveCount3
totalSentences56
matches
0"were torn"
1"was scuffed"
2"was etched"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount0
totalVerbs134
matches(empty)
100.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount845
adjectiveStacks0
stackExamples(empty)
adverbCount16
adverbRatio0.01893491124260355
lyAdverbCount7
lyAdverbRatio0.008284023668639054
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences72
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences72
mean15.29
std6.88
cv0.45
sampleLengths
029
123
212
316
414
529
624
725
820
911
1017
1112
1220
139
1423
154
1615
1725
186
192
2012
2127
2211
2312
2421
2514
2614
273
2814
2914
3011
315
3211
3316
3411
3516
3621
3712
389
3928
4011
4110
4218
4318
4412
4520
4611
4710
4820
496
54.1667% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats1
diversityRatio0.3333333333333333
totalSentences72
uniqueOpeners24
18.7500% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags8
fancyCount5
fancyTags
0"a voice called out, echoing off the tiled walls (call out, echo tiled)"
1"Harlow acknowledged, her tone clipped but not unkind (acknowledge, clip)"
2"Eva supplied, consulting a small notebook she pulled from her satchel (supply, consult pull)"
3"Eva said, her voice dropping to a whisper (say, drop)"
4"Harlow replied, rising to her feet (reply, rise)"
81.6744%