Run: 2026-02-17-01KHMMGP10FQMEVN4CE7R7WHDA

Run Details

Duration:
20.8s
Cost:
$0.033295
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 and into the dimly lit expanse of the abandoned Tube station beneath Camden. Her boots echoed against the cracked tiles, the sound swallowed by the oppressive silence of the underground. She adjusted the worn leather watch on her left wrist, a habit she had picked up since losing DS Morris. The memory of her partner's death lingered like a shadow, always at the edge of her thoughts. The Veil Market, a hidden supernatural black market, had chosen this forsaken place for its latest incarnation. The market moved locations every full moon, a fact that made it notoriously difficult to track. Tonight, it was a crime scene. "Quinn, over here," called a voice from the shadows. Eva Kowalski emerged, her curly red hair a stark contrast to the gloom. She adjusted her round glasses and tucked a stray lock behind her left ear, a nervous habit Harlow had come to recognize. "Eva," Harlow acknowledged, her tone clipped. She respected Eva's expertise in the occult, but the younger woman's presence at a crime scene always made her uneasy. "What have we got?" Eva gestured to a cluster of stalls, their wares abandoned in haste. "The market was in full swing when it happened. Witnesses say they saw a flash of light, then chaos. By the time anyone could react, the victim was already dead." Harlow's sharp brown eyes scanned the area. The Veil Market was a labyrinth of makeshift stalls and hidden alcoves, each one brimming with enchanted goods and banned alchemical substances. The air was thick with the scent of incense and something metallic, like blood. "Where's the body?" Harlow asked, her voice steady. Eva led her to a small clearing where a figure lay sprawled on the ground. The victim was a middle-aged man, his face contorted in a rictus of terror. His clothes were singed, and a strange, iridescent residue clung to his skin. "Name's Marcus Hale," Eva said, consulting a small notebook from her worn leather satchel. "He was a known trader here, dealt in rare artifacts." Harlow knelt beside the body, her sharp jawline set in concentration. She noted the residue, the singed clothes, the position of the body. Something was off. The evidence didn't add up. "Any witnesses?" she asked, standing up and dusting off her hands. Eva nodded. "A few. But their stories are inconsistent. Some say they saw a figure in the shadows, others claim it was a burst of magic gone wrong." Harlow's eyes narrowed. "And what do you think?" Eva hesitated, tucking her hair behind her ear again. "I think there's more to this than meets the eye. The residue... it's not something I've seen before. It doesn't match any known magical substances." Harlow's mind raced. She had seen a lot in her eighteen years of service, but the supernatural was still a realm she was learning to navigate. She needed more information. "Let's start with the basics," she said. "What was Hale doing here tonight?" Eva flipped through her notebook. "He was supposed to meet a client. Someone interested in a Veil Compass." Harlow's eyes widened. The Veil Compass was a rare and powerful tool, capable of pointing toward the nearest supernatural rift or portal. If Hale had one, it could explain why he was targeted. "Do we have the Compass?" Harlow asked. Eva shook her head. "It's missing. Whoever killed Hale must have taken it." Harlow's mind worked through the possibilities. A missing Veil Compass, an unknown residue, and a market full of potential suspects. She needed to find the Compass and figure out what had really happened. "Let's talk to the witnesses," she said, her voice firm. "Someone must have seen something useful." Eva led her to a group of market-goers huddled near a stall selling enchanted trinkets. They looked nervous, their eyes darting around as if expecting another attack. Harlow approached the first witness, a wiry man with a twitchy demeanor. "I'm Detective Quinn," she said, flashing her badge. "I need to ask you a few questions." The man nodded, his eyes wide. "I didn't see much, Detective. Just a flash of light and then... he was dead." Harlow pressed on. "Did you see anyone near Hale before the flash?" The man shook his head. "No, but I heard something. A whisper, like someone casting a spell." Harlow's brow furrowed. A spell could explain the residue, but it didn't fit with the rest of the evidence. She moved on to the next witness, a woman with a freckled complexion and a haunted look in her green eyes. "I saw a figure," the woman said, her voice trembling. "In the shadows, just before the light. They were holding something... a small brass object." Harlow's heart skipped a beat. The Veil Compass. "Can you describe the figure?" The woman shook her head. "It was too dark. But they moved with purpose, like they knew exactly what they were doing." Harlow thanked the witnesses and turned to Eva. "We need to find that Compass. It's the key to all this." Eva nodded, her expression serious. "I agree. But where do we start?" Harlow thought for a moment. The Veil Market was a maze, but it had its patterns. The Compass would be drawn to the nearest supernatural rift or portal. If they could find that, they might find the killer. "Let's split up," Harlow said. "I'll check the eastern side of the market. You take the west. Look for any signs of a rift or portal." Eva nodded and headed off, her satchel bouncing against her hip. Harlow made her way through the market, her eyes scanning for anything out of the ordinary. She passed stalls selling enchanted jewelry, potions, and strange artifacts, but nothing caught her eye. As she reached the eastern edge of the market, she noticed a faint glow emanating from a narrow passageway. She followed it, her senses on high alert. The passageway opened into a small chamber, and there, in the center, was a shimmering portal. Harlow approached cautiously, her hand resting on the hilt of her service weapon. The portal pulsed with an eerie light, and she could feel the supernatural energy radiating from it. She needed to find the Compass, but she couldn't risk stepping through the portal without knowing where it led. She scanned the chamber, her eyes landing on a small brass object lying near the portal's edge. The Veil Compass. She picked it up, noting the verdigris patina on the casing and the protective sigils etched into the face. The needle pointed directly at the portal. Harlow's mind raced. The killer must have used the Compass to find the portal, but why? And where did the portal lead? She heard footsteps behind her and turned to see Eva approaching, her eyes wide with concern. "Harlow, did you find it?" Harlow held up the Compass. "I did. But we have a bigger problem. This portal... it's active. And I think our killer used it to escape." Eva's eyes widened. "We need to close it. If the killer can come and go as they please, we'll never catch them." Harlow nodded. "Agreed. But we need to be careful. We don't know where it leads or what might come through." Eva reached into her satchel and pulled out a small vial of shimmering liquid. "This should do the trick. It's a portal sealant. It will close the rift and prevent anyone from using it." Harlow watched as Eva carefully poured the liquid around the portal's edge. The shimmering light began to fade, and the portal slowly closed, leaving only a faint residue behind. "That should hold," Eva said, tucking the empty vial back into her satchel. "But we still need to find the killer." Harlow nodded, her mind already working through the possibilities. The Veil Compass was a powerful tool, and whoever had it would be able to find other rifts and portals. They needed to track the killer down before they could cause more harm. "Let's get back to the market," Harlow said. "We need to find out who Hale was meeting and why they wanted the Compass." Eva nodded, and together they made their way back through the labyrinth of stalls. The market-goers watched them with wary eyes, but Harlow ignored them. She had a job to do, and she wouldn't rest until she had answers. As they reached the clearing where Hale's body still lay, Harlow's sharp eyes caught a glint of something metallic near the edge of the market. She approached and found a small, intricately carved bone token. The entry requirement for the Veil Market. She picked it up, turning it over in her hand. It was a clue, a small piece of the puzzle. She would find the killer, and she would get justice for Marcus Hale. And maybe, just maybe, she would find some answers about the supernatural forces that had taken her partner from her. Harlow slipped the bone token into her pocket and turned to Eva. "Let's get to work."
created_at"2026-02-17T01:48:17.123944+00:00" 2/17/2026, 1:48:17 AM
model"openai/gpt-4o-2024-05-13"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency425
moderation_latency(null)
generation_time20679
tokens_prompt923
tokens_completion2269
native_tokens_prompt836
native_tokens_completion1941
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"
usage0.033295
router(null)
provider_responses
0
id"chatcmpl-DA4Tq1TGcFPPOt2gUyUpVHxlWy0KJ"
status200
is_byokfalse
latency418
endpoint_id"3d6584e7-a2bb-48d6-903d-24e3d90e7e55"
provider_name"OpenAI"
model_permaslug"openai/gpt-4o-2024-05-13"
api_type"completions"
id"gen-1771292874-0JuLCBzGLLOppJ6SVrFr"
upstream_id"chatcmpl-DA4Tq1TGcFPPOt2gUyUpVHxlWy0KJ"
total_cost0.033295
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
totalTags13
adverbTagCount0
adverbTags(empty)
73.6842% AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount1520
totalAiIsmAdverbs4
found
0
adverb"carefully"
count1
1
adverb"cautiously"
count1
2
adverb"slowly"
count1
3
adverb"really"
count1
highlights
0"carefully"
1"cautiously"
2"slowly"
3"really"
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)
47.3684% AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount1520
totalAiIsms8
found
0
word"glint"
count1
1
word"oppressive"
count1
2
word"stark"
count1
3
word"furrowed"
count1
4
word"footsteps"
count1
5
word"echoed"
count1
6
word"etched"
count1
7
word"navigate"
count1
highlights
0"glint"
1"oppressive"
2"stark"
3"furrowed"
4"footsteps"
5"echoed"
6"etched"
7"navigate"
33.3333% Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches4
maxInWindow3
found
0
label"eyes widened/narrowed"
count3
1
label"air was thick with"
count1
highlights
0"eyes narrowed"
1"eyes widened"
2"The air was thick with"
100.0000% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells1
narrationSentences103
matches
0"looked nervous"
100.0000% Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences103
filterMatches
0"watch"
hedgeMatches
0"began to"
100.0000% Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount2
totalSentences131
matches
0"find that Compass"
1"find that, they"
93.9175% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs53
mean28.62
std13.7
cv0.479
sampleLengths
079
139
244
330
442
543
68
742
824
931
1011
1128
128
1334
1430
1513
1618
1733
187
1913
2033
2116
2227
2328
2421
2512
2617
2740
2825
2913
3022
3120
3212
3338
3426
3542
3643
3749
3846
3922
4021
4126
4222
4320
4434
4529
4621
4742
4823
4939
100.0000% Passive voice overuse
Target: ≤5% passive sentences
passiveCount1
totalSentences103
matches
0"were singed"
100.0000% Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount1
totalVerbs194
matches
0"was learning"
100.0000% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1109
adjectiveStacks0
stackExamples(empty)
adverbCount23
adverbRatio0.020739404869251576
lyAdverbCount10
lyAdverbRatio0.009017132551848512
100.0000% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences131
echoCount0
echoWords(empty)
100.0000% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences131
mean11.58
std6.15
cv0.531
sampleLengths
025
117
220
317
417
516
66
79
813
922
106
1120
124
1312
1430
157
1622
1714
188
1915
2014
2113
2214
2310
2411
2512
263
275
2811
292
3026
313
325
339
3425
353
3623
374
387
396
405
4113
423
4319
4411
457
464
479
486
4914
43.8931% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats8
diversityRatio0.2595419847328244
totalSentences131
uniqueOpeners34
98.0769% Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags13
fancyCount4
fancyTags
0"Harlow acknowledged, her tone clipped (acknowledge, clip)"
1"Eva said, consulting a small notebook from her worn leather satchel (say, consult)"
2"she said, flashing her badge (say, flash)"
3"Eva said, tucking the empty vial back into her satchel (say, tuck back)"
86.4867%