Run: 2026-05-31-01KSYXG4T8PAFFFVKGAVGHPAGR

Run Details

Duration:
42.8s
Cost:
$0.065445
Provider:
Anthropic

Model input

System
You are an expert fiction writer. Always keep the following rules in mind: - Write in past tense and use General English spelling, grammar, and colloquialisms/slang. - Write in active voice - Always follow the "show, don't tell" principle. - Avoid adverbs and cliches and overused/commonly used phrases. Aim for fresh and original descriptions. - Convey events and story through dialogue. - Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. - Skip "he/she said said" dialogue tags and convey people's actions or face expressions through their speech - Avoid mushy dialog and descriptions, have dialogue always continue the action, never stall or add unnecessary fluff. Vary the descriptions to not repeat yourself. - Put dialogue on its own paragraph to separate scene and action. - Reduce indicators of uncertainty like "trying" or "maybe" When writing text: - NEVER conclude the scene on your own, follow the beat instructions very closely. - NEVER end with foreshadowing. - NEVER write further than what I prompt you with. - AVOID imagining possible endings, NEVER deviate from the instructions. - STOP EARLY if the continuation contains what was required in the instructions. You do not need to fill out the full amount of words possible.
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <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="4417" name="Tomás Herrera" aliases="Tommy, Tomás, Herrera" pronouns="he/him" species="Human" storyRole="Support"> <eyeColor>warm brown</eyeColor> <hair>short curly dark brown</hair> <height>5'10"</height> <age>29</age> <skinTone>olive skin</skinTone> <scar>scar running along his left forearm from a knife attack</scar> <medallion>Saint Christopher medallion around his neck</medallion> <birthplace>Seville, Spain</birthplace> <description>A former paramedic who provides off-the-books medical care for the clique.</description> <backstory>Born in Seville, Spain. He moved to London to work for the NHS but lost his license after administering unauthorized treatments to supernatural patients.</backstory> </character> <location id="854" name="The Raven's Nest" aliases="the Nest, Raven, Silas' bar" realm="Earth"> <signColor>distinctive green neon sign above the entrance</signColor> <secretRoom>hidden back room accessible through a bookshelf, used for clandestine meetings</secretRoom> <description>A dimly lit bar in Soho, London. The walls are covered with old maps and black-and-white photographs.</description> </location> <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> </codex> Continue the story using the following instructions: <instructions> Write a fully fleshed out scene of at least 1000 words in the thriller genre. A detective is pursuing a suspect through rain-soaked city streets at night. The chase takes them from the street level down into an underground market. The detective must decide whether to follow the suspect into unfamiliar and potentially dangerous territory. 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. </instructions>

Model response

AI
Rain came down in sheets across Camden High Street, turning the pavement into a black mirror that fractured under every footfall. Detective Harlow Quinn ran through it, her coat slapping wet against her thighs, her boots throwing up arcs of dirty water. Ahead of her, maybe forty metres, a figure cut left between two shuttered shopfronts. "Herrera!" The name bounced off brick and got swallowed by the downpour. The figure didn't slow. Of course he didn't. She'd recognised him outside the Raven's Nest an hour ago—the Saint Christopher medallion catching the green light of that ugly neon sign, the scar on his forearm she'd memorised from a clinic photograph two years stale. Former paramedic. Stripped of his licence. Now patching up people the NHS would never have on record. People like the ones who'd taken Morris. Quinn's watch dug into her wrist as she pumped her arms. Eighteen years on the job and she'd never let a runner open this much distance. Herrera vaulted a low railing and dropped out of sight. She reached the spot and skidded, catching the rail with both hands. Stone steps descended below the street—an old pedestrian underpass, or it had been once. A hoarding had been peeled back from the entrance. The mouth of it breathed cold air up at her, air that smelled of rust and tallow and something sweeter underneath, like overripe fruit gone to fermentation. A Tube roundel hung above the steps, its enamel cracked. CAMDEN. The line beneath the name had been painted over decades ago. "You don't want to go down there." A voice from the dark at the foot of the stairs. Herrera's voice, breath ragged but steady. Spanish edges on the consonants. "Not you. Not tonight." Quinn drew her torch, swept the beam down. It caught him standing on the bottom step, one hand braced against the wall, chest heaving. Behind him the passage curved away into nothing. "You know who I am." "Everybody on your list knows who you are, Detective." He wiped rain from his face with the back of his wrist. "You've been knocking on doors for three years. Asking about your partner." The mention of Morris hit her low in the gut. She kept her face flat. "Then you can help me. Come up. We talk somewhere dry." "Up there I can talk." He shook his head, almost an apology in it. "Down here, I can't help what happens to you. That's the truth. I'm telling it to you straight because I've watched people not come back." "Is that a threat?" "It's a kindness." He started backing away, deeper, the dark folding around his shoulders. "Go home, Quinn. Let the dead stay buried." She took the stairs two at a time. The cold deepened the further she went, the kind that lived in walls that never saw the sun. Her torch beam jumped across tile and graffiti and then, abruptly, across stalls—canvas awnings strung between the pillars of a platform that no train had visited in fifty years. Lanterns hung from chains, but the light they threw was wrong, blue-white and flickering with no flame inside the glass. The Veil Market. She'd heard the name in interrogation rooms, always spoken low, always denied a moment later. She'd filed it under superstition. She wasn't filing it there now. Figures moved between the stalls. Some wore hoods. One, behind a table of glass vials that glowed faintly amber, had eyes that reflected her torch like a cat's. A woman in a butcher's apron weighed something pale and wet on a brass scale and didn't look up. The air pressed against Quinn's eardrums. A hand closed on her sleeve. She spun, fist rising. "Don't." A small man, ancient, skin like folded paper. He nodded at a wooden bowl on the nearest stall, full of yellowed shapes she took for dice until she saw the joints in them. Finger bones. "Token, or you don't pass. They'll know. They always know." "Police." She showed her warrant card. It meant nothing here; she understood that even as she held it up. The old man's laugh was a dry rasp. "That buys you a knife in the ribs and a quiet hole. Down here your queen doesn't reign, Detective." Across the market, Herrera glanced back. Their eyes met over the heads of the crowd. He shook his head once—still that warning, still that strange regret—and turned to push through a gap between two stalls toward a curtained archway at the far end. Quinn's chest tightened. Every instinct hammered the same word: *don't*. Eighteen years of those instincts had kept her alive. They told her to climb the stairs, call it in, come back with a team and floodlights and a warrant that meant something. But she'd come back to a hundred crime scenes with a hundred warrants and never found the thread that led to Morris. She'd stood over his empty coffin—empty, because there'd been nothing to bury, just his blood and his radio and a smell exactly like the one filling her nose now. Sweet rot. Fermented dark. Herrera reached the archway. "What's behind the curtain?" she asked the old man. "The deep part. Where the buyers don't show their faces." "And if I go through?" He studied her. Something in his expression shifted—pity, maybe, or recognition. "Then you go where your partner went. That's where they took him, the night the moon was full. I remember the policeman. I remember the screaming." The words landed like a fist. Her hand went tight around the torch until the casing creaked. "You're lying." "I'm too old to lie. It's expensive." He released her sleeve and stepped back into shadow. "Choose quickly. The market moves with the moon, and the moon is nearly down. When it sets, the door you came in by won't be there." Herrera lifted the curtain. Beyond it, Quinn glimpsed steps going further down, and a light the colour of a bruise. She thought of the empty coffin. She thought of the way the brass kept catching that wrong blue glow, of finger bones in a bowl, of a man who'd run from her precisely because he didn't want her to die. She moved through the crowd, shouldering past a hooded shape that hissed at her, fixing her eyes on the swaying curtain and the dark mouth behind it. "Herrera." Her voice cut through the murmur of the market. "I'm coming. And you're going to tell me what's down there." He held the curtain a moment longer, his face half-lit, the medallion glinting at his throat. "Then God help us both," he said, and let it fall behind him. Quinn reached the archway, drew a breath that tasted of rot and copper, and pulled the curtain aside.
created_at"2026-05-31T11:42:53.27Z" 5/31/2026, 11:42:53 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3407
moderation_latency(null)
generation_time42799
tokens_prompt1140
tokens_completion1739
native_tokens_prompt1574
native_tokens_completion2303
native_tokens_completion_images(null)
native_tokens_reasoning60
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.065445
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provider_responses
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is_byokfalse
latency1295
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
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request_id"req-1780227773-hfTJYJDgBQZ4OB96Rk6e"
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api_type"completions"
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upstream_id"msg_01WRT2nM3mnbgTrWMy6ZQY1U"
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Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags8
adverbTagCount0
adverbTags(empty)
dialogueSentences26
tagDensity0.308
leniency0.615
rawRatio0
effectiveRatio0
91.20% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1137
totalAiIsmAdverbs2
found
0
adverb"quickly"
count1
1
adverb"precisely"
count1
highlights
0"quickly"
1"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)
86.81% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1137
totalAiIsms3
found
0
word"fractured"
count1
1
word"footfall"
count1
2
word"glinting"
count1
highlights
0"fractured"
1"footfall"
2"glinting"
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
narrationSentences80
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences80
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences96
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen37
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans1
markdownWords1
totalWords1130
ratio0.001
matches
0"don't"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions8
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions26
wordCount908
uniqueNames14
maxNameDensity0.77
worstName"Quinn"
maxWindowNameDensity1.5
worstWindowName"Herrera"
discoveredNames
Camden1
High1
Street1
Harlow1
Quinn7
Raven1
Nest1
Saint1
Christopher1
Morris3
Tube1
Herrera5
Veil1
Market1
persons
0"Harlow"
1"Quinn"
2"Saint"
3"Christopher"
4"Morris"
5"Herrera"
places
0"Camden"
1"High"
2"Street"
3"Raven"
4"Market"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences59
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1130
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences96
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs43
mean26.28
std17.96
cv0.683
sampleLengths
056
11
219
360
426
510
662
722
833
932
105
1133
1226
1339
144
1522
168
1767
1823
196
2053
2110
2246
2319
2427
2543
2642
2755
284
299
3010
315
3237
3317
342
3542
3620
3740
3827
3921
4016
4113
4218
92.11% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences80
matches
0"got swallowed"
1"been peeled"
2"been painted"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs149
matches
0"wasn't filing"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount7
semicolonCount1
flaggedSentences7
totalSentences96
ratio0.073
matches
0"She'd recognised him outside the Raven's Nest an hour ago—the Saint Christopher medallion catching the green light of that ugly neon sign, the scar on his forearm she'd memorised from a clinic photograph two years stale."
1"Stone steps descended below the street—an old pedestrian underpass, or it had been once."
2"Her torch beam jumped across tile and graffiti and then, abruptly, across stalls—canvas awnings strung between the pillars of a platform that no train had visited in fifty years."
3"It meant nothing here; she understood that even as she held it up."
4"He shook his head once—still that warning, still that strange regret—and turned to push through a gap between two stalls toward a curtained archway at the far end."
5"She'd stood over his empty coffin—empty, because there'd been nothing to bury, just his blood and his radio and a smell exactly like the one filling her nose now."
6"Something in his expression shifted—pity, maybe, or recognition."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount917
adjectiveStacks0
stackExamples(empty)
adverbCount25
adverbRatio0.027262813522355506
lyAdverbCount5
lyAdverbRatio0.0054525627044711015
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences96
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences96
mean11.77
std8.13
cv0.691
sampleLengths
021
121
214
31
411
54
64
736
82
94
1011
117
1211
1315
1410
1512
1614
179
1827
1910
201
2111
2218
236
245
254
268
2716
288
295
3021
3112
3210
335
3411
3514
3625
374
3814
398
408
4118
4229
4320
443
4515
465
476
485
493
83.33% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.53125
totalSentences96
uniqueOpeners51
44.44% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences75
matches
0"Of course he didn't."
ratio0.013
60.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount30
totalSentences75
matches
0"She'd recognised him outside the"
1"She reached the spot and"
2"It caught him standing on"
3"He wiped rain from his"
4"She kept her face flat."
5"He shook his head, almost"
6"He started backing away, deeper,"
7"She took the stairs two"
8"Her torch beam jumped across"
9"She'd heard the name in"
10"She'd filed it under superstition."
11"She wasn't filing it there"
12"She spun, fist rising."
13"He nodded at a wooden"
14"She showed her warrant card"
15"It meant nothing here; she"
16"Their eyes met over the"
17"He shook his head once—still"
18"They told her to climb"
19"She'd stood over his empty"
ratio0.4
40.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount63
totalSentences75
matches
0"Rain came down in sheets"
1"Detective Harlow Quinn ran through"
2"The name bounced off brick"
3"The figure didn't slow."
4"She'd recognised him outside the"
5"People like the ones who'd"
6"Quinn's watch dug into her"
7"Herrera vaulted a low railing"
8"She reached the spot and"
9"Stone steps descended below the"
10"A hoarding had been peeled"
11"The mouth of it breathed"
12"A Tube roundel hung above"
13"The line beneath the name"
14"A voice from the dark"
15"Herrera's voice, breath ragged but"
16"Quinn drew her torch, swept"
17"It caught him standing on"
18"He wiped rain from his"
19"The mention of Morris hit"
ratio0.84
66.67% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences75
matches
0"Now patching up people the"
ratio0.013
79.83% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences34
technicalSentenceCount3
matches
0"Detective Harlow Quinn ran through it, her coat slapping wet against her thighs, her boots throwing up arcs of dirty water."
1"She thought of the way the brass kept catching that wrong blue glow, of finger bones in a bowl, of a man who'd run from her precisely because he didn't want her…"
2"She moved through the crowd, shouldering past a hooded shape that hissed at her, fixing her eyes on the swaying curtain and the dark mouth behind it."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags8
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount0
fancyTags(empty)
dialogueSentences26
tagDensity0.077
leniency0.154
rawRatio0
effectiveRatio0
88.1465%