Run: 2026-02-17-01KHMQZTXDCM4HGZ7HZD861TSQ

Run Details

Duration:
55.1s
Cost:
$0.018744
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 ducked beneath the rusted arch where the city’s bones poked out, the abandoned Tube platform yawning ahead with its empty trackbed and damp, echoing hush. Her footsteps marked time against the cracked flagstones, heels clicking—too loud, too regular. She paused, brow furrowed at the oily puddles, the glimmer of rat eyes between shattered tiles. Bleak yellow light from portable halogens turned the sluice-scored air into something colorless and dust-thick. She took in the remnants of the Market: the scent of extinguished incense, the aftertaste of ozone and smoke. Tape cordoned off a scatter of stalls—wet cardboard, shards of fused glass, a ruined velvet display pillow leaking what might be sand or powdered bone. The Market had already vanished, as it always did, but its footprint lingered in the stray psychic charge that raised the fine hairs on her arms. A patrol officer flagged her down, holding out a hand smeared with black grease from the generator. "Detective Quinn? DS Palmer's already down on the tracks. Scene's secure, but you're not gonna like it." He had nervous eyes, darting to places that weren't there. She nodded, flicked her gaze to her own shadow—there, steady weight and outline, no ripple. "Appreciate it, Constable. Don't touch anything else." Her voice, sharp as her jaw, brokered no argument. Past the barrier, DS Palmer crouched beside the rails, suit jacket rumpled, tie loose. His face gleamed with sweat, lost in the forensic lamplight. At his feet: a body, shrouded in a glimmering, iridescent tarpaulin where official kit merged with something not from the usual evidence locker. Palmer’s latex gloves shone ghost-pale. He straightened, exhaling. “Quinn. About time.” She knelt, adjusting the worn leather watch on her wrist—familiar weight, marked and scuffed. The victim was female, late twenties, hair coiled and scorched at the ends, skin oddly translucent at the neck. Her arms, crossed over her chest, clasped a small brass object. Harlow recognized the etching of sigils—protective wards, overwrought and, from the looks of them, done in haste. “Who found her?” Harlow asked. Her tone was short, clipped. “One of the cleaners—routine sweep after lads in blue noticed odd foot traffic on the cameras last night,” Palmer replied. “But look, Harlow—none of this fits a normal break-in or assault. No defensive wounds, no obvious entry or exit. Not unless your local ghosts are getting bolder.” He smirked, but she saw the unease in his hands—kept busy fiddling with his flashlight. Harlow bent closer, scanning the ground. Ash dust blackened the edges of a scorched mark, circular, near the left rail. She touched her gloved finger to the line and felt the buzz of warding magic—fizzling, incomplete. “The Market was here,” she said. Palmer grunted. “So the rumors are true? They actually hawk their tricks here, right under Camden?” “Not tricks.” Harlow’s response was cool, but not dismissive. “Not for the kind of clientele who trade on bone tokens and blood currency.” She nudged the victim’s hands apart, careful not to disturb the compass that lay nestled there—a small brass thing, mottled green in the sickly light. The needle twitched, uncertain, then spun twice before resting, quivering, toward the west wall. Palmer shifted. “Looks like an antique.” “It's a Veil Compass,” Harlow said. “Tracks openings—supernatural rifts. Made by the Shades.” Palmer blinked. “That’s—never mind. She’s not local, according to the ID. Polish passport, no priors, address doesn’t check out. Why here, why now?” Harlow straightened. She scanned for footprints—too many, overlapping, sellers and buyers from the Market jammed close before the dispersal. But the circle near the rail stood out—exclusion zone, scorched, nothing but a faint shimmer glinting where the lamplight caught. “She died protecting this,” Harlow said, nodding at the compass. Palmer leaned in, skepticism plain. “From who? What, a rival dealer? This feels staged. We’re underground, two locked gates, no cameras. Who gets in and out?” Harlow’s eyes, brown and clear beneath the halogen glare, sharpened. “Palmer, who else has the skill to break a Market circle? Who knows how to take down a barrier without triggering every ward in a five-mile radius? This wasn't brute force. It was precise. Military precision.” She didn’t let her mouth tighten, but the words left a bitter film. A sound behind them—soft shoe on gravel, intake of breath—announced a new arrival, small and anxious. Eva Kowalski, hair a frizzed flame beneath the emergency lights, hovered at the edge of the cordon. She hugged her satchel tight. Round glasses flashed. Her eyes, quick and nervous, darted over the scene and landed on Harlow. “Detective Quinn,” she said, voice unsteady. “I heard—well, I read about…the Market moving. Did she—was this…?” Harlow motioned her closer. “Eva Kowalski, right? British Museum’s restricted archives?” Eva nodded, swallowing hard. She fidgeted, tucking a curl behind her ear. “That sigil—it’s a variant on a Silesian ward, very old. Meant to shield not from spirits, but from—well, from people. Human intent.” She dropped her gaze. “Whoever attacked her knew that.” Palmer made a face. “Human or not, someone killed her. Only question now is how.” Harlow drew in the dry station air, registering scents: burnt metal, camphor, and underneath, the faint rank trace of panic. Not the victim’s—Eva. She bent toward the compass. “Palmer, why did you say none of this fits? What are you seeing?” He gestured. “No obvious sign of trauma. Just—here.” He peeled back the tarpaulin at the neck, careful. The skin beneath was marbled blue and green, as if ink had bled from the veins. “I’ve seen nerve agent poisonings,” he said. “This isn’t that. It looks closer to hypoxia, but nothing about the environmental readings matches. Air’s clean. No residue.” Eva tensed. “That’s not chemical burn. It’s spell rebound. If you try to reroute defensive wards and they fail—” She hesitated, voice thin. “It backlashes. The energy displaces the blood. Drowns you from the inside.” Harlow filed that away. She squinted at the compass, noting the faint smear on its housing—less of verdigris, more something sticky. Blood, then, not all her own. And beside the body, tucked out of easy view, lay a small white chip. Harlow fished it up, displaying the scrimshawed bone. A bone token, marked in the Market’s private script. She rolled it in her palm. “She paid someone for protection—or passage. Could be she bought a way out, or thought she did.” Her focus narrowed to the scorched circle. “But whoever came for her had inside knowledge. They stepped over the line, targeted the weak point in her protections.” Palmer was silent a moment, frowning into the shadows. “You think this was a hit? Not some market trade gone wrong?” Harlow shook her head—once, sharp. “This is deliberate. Look at the circle: burnt at one point only, breached from the outside. Whoever broke in knew how to thread the power lines. They didn’t set off any alarms or triggers. That’s not amateur work. That’s someone trained.” Her jaw set, memory flickering—DS Morris, her partner, eyes wild the night he vanished. A circle torn open in just that way. She met Eva’s gaze. “You said Silesian wards defend against human intent. What kind of human?” Eva shifted, clutching the satchel. “The kind who knows what you are, and what you have. The kind who can exploit a trapdoor in the pattern.” Harlow’s mind whirred. The victim bought a Veil Compass, secured Market passage, planned an escape. Someone followed—someone who could twist both the magical and the mundane. She stepped to the circle’s breach, knees popping in protest. There: a faint scuff of boot polish, black as pitch. Not Market folk—wrong style, too rigid. Palmer caught her look. “Find something?” She glanced at him. “Someone came here prepared. Knew the circle layout, wore boots instead of trainers. That’s not a Market runner.” She watched the compass needle—it trembled, trying to point not just to a rift, but to the person who’d forced passage. Palmer ran his hand over his jaw. “An inside job?” Eva’s whisper was near silent: “Or someone with the Market’s trust.” Harlow stood, every sinew coiled. “We need to speak with the Shade crafters. Someone sold her out. Palmer, call in the forensics team—full spectrum, take samples from the circle and the compass. Eva, you stay close.” Palmer nodded and turned away, already on his radio. Eva drifted to Harlow’s elbow, anxious. Harlow looked at the body once more. “She thought rules would save her. But down here, everything’s negotiable—except what you owe.” She palmed the bone token, memorizing its pattern. There was a debt here; she recognized the weight, the flavor of old guilt. Stepping back, she fixed her attention on the platform shadows, the tracks running into further dark. The Market had changed locations, but its secrets clung to bone and brass, and to all those who had thought the supernatural ledger would ever let them go.
created_at"2026-02-17T02:49:32.489922+00:00" 2/17/2026, 2:49:32 AM
model"openai/gpt-4.1-2025-04-14"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency329
moderation_latency(null)
generation_time55073
tokens_prompt923
tokens_completion2453
native_tokens_prompt836
native_tokens_completion2134
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"
usage0.018744
router(null)
provider_responses
0
id"resp_08f60de6c7f227da016993d7051dd8819497c04f8e5176ea28"
status200
is_byokfalse
latency128
endpoint_id"c235abe8-11cc-42d3-95ad-72f4d198287a"
provider_name"OpenAI"
model_permaslug"openai/gpt-4.1-2025-04-14"
api_type"completions"
id"gen-1771296517-g3XBJjD5HqMnTgHE4UgO"
upstream_id"resp_08f60de6c7f227da016993d7051dd8819497c04f8e5176ea28"
total_cost0.018744
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
totalTags7
adverbTagCount0
adverbTags(empty)
93.3731% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1509
totalAiIsmAdverbs1
found
0
adverb"very"
count1
highlights
0"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)
27.1040% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1509
totalAiIsms11
found
0
word"flicked"
count1
1
word"glinting"
count1
2
word"trembled"
count1
3
word"velvet"
count1
4
word"furrowed"
count1
5
word"weight"
count3
6
word"footsteps"
count1
7
word"echoing"
count1
8
word"etching"
count1
highlights
0"flicked"
1"glinting"
2"trembled"
3"velvet"
4"furrowed"
5"weight"
6"footsteps"
7"echoing"
8"etching"
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
narrationSentences95
matches(empty)
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount2
hedgeCount0
narrationSentences95
filterMatches
0"watch"
1"look"
hedgeMatches(empty)
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount0
totalSentences117
matches(empty)
100.0000% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs47
mean31.43
std19.78
cv0.63
sampleLengths
072
170
244
331
452
56
661
710
847
915
1036
116
1216
1362
146
1513
1623
1739
1810
1926
2059
2154
2216
2311
2443
2515
2623
2718
2859
2935
3027
3131
3250
3321
3468
3516
3626
3726
3826
396
4043
4110
4211
4336
4415
4521
4666
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount1
totalSentences95
matches
0"was marbled"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount0
totalVerbs181
matches(empty)
100.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount964
adjectiveStacks0
stackExamples(empty)
adverbCount28
adverbRatio0.029045643153526972
lyAdverbCount3
lyAdverbRatio0.0031120331950207467
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences117
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences117
mean12.62
std9.49
cv0.751
sampleLengths
028
113
216
315
419
525
626
717
827
915
1016
1114
1210
1323
145
153
163
1714
1819
1911
2017
215
225
2320
2427
2515
266
2714
2816
296
302
3114
329
3339
3414
352
364
376
387
392
4021
412
4217
4320
4410
455
4621
4710
4849
4916
56.4103% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.358974358974359
totalSentences117
uniqueOpeners42
100.0000% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags7
fancyCount2
fancyTags
0"Harlow said, nodding at the compass (say, nod)"
1"she said, voice unsteady (say, voice)"
92.7581%