Run: 2026-06-01-01KT1HMJQ726YFC4K5RCRYC6BV

Run Details

Duration:
44.9s
Cost:
$0.067665
Provider:
Anthropic

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="4412" name="Aurora Carter" aliases="Rory, Laila, Aurora, Carter, Malphora" pronouns="she/her" species="Human" storyRole="Protagonist"> <eyeColor>bright blue</eyeColor> <hair>straight shoulder-length black</hair> <height>5'6"</height> <age>25</age> <scar>small crescent-shaped scar on her left wrist from a childhood accident</scar> <description>Aurora, referred to by her friends as Rory, is cool-headed, intelligent, and known for quick out-of-the-box thinking.</description> <backstory>Born in Cardiff to an Irish barrister father (Brendan Carter) and Welsh teacher mother (Jennifer Carter née Ellis), Rory reluctantly pursued Pre-Law at Cardiff University. She fled to London at the behest of her childhood friend Eva after leaving an abusive ex named Evan. By day, Rory works part-time as a delivery person for Yu-Fei Cheung's Golden Empress restaurant. She lives in a flat above Silas' bar.</backstory> </character> <character id="4413" name="Silas Blackwood" aliases="Silas, Si, the Spymaster" pronouns="he/him" species="Human" storyRole="Mentor"> <eyeColor>hazel</eyeColor> <hair>grey-streaked auburn</hair> <height>6'1"</height> <age>58</age> <beard>neatly trimmed, matching his grey-streaked auburn hair</beard> <limp>slight limp in his left leg from an old knee injury</limp> <signetRing>silver signet ring, always worn on his right hand</signetRing> <description>Silas is a retired intelligence operative turned bar owner. He carries himself with quiet authority.</description> <backstory>Former MI6 field agent who retired after a botched operation in Prague left him with a permanent knee injury. He opened "The Raven's Nest" bar in Soho as a front for his network of contacts.</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> </codex> Write a fully fleshed out scene of at least 1000 words in the literary fiction genre. Two old friends who haven't seen each other in years run into each other unexpectedly at a bar. One of them has changed significantly. Through their conversation and the tension between who they were and who they've become, reveal the weight of time and unspoken regret. 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 green neon buzzed its familiar complaint above the door, and Silas, polishing a glass he had already polished twice, did not look up when the bell chimed. He rarely did anymore. The early evening crowd at The Raven's Nest was thin and reliable—a translator who came for the silence, two students who pretended to understand the maps on the walls, a widower who drank gin and read the same paperback he never finished. Silas knew the rhythm of his own door the way a man knows his own pulse. So when the footsteps came—uneven, deliberate, with a hitch he recognized before he placed it—he set the glass down. "They told me you were dead," the man said. Silas looked up. For a moment the years folded in on themselves like wet paper. The face across the bar had thinned to its architecture, the cheekbones sharp where they had once been padded by good living and better wine. The hair had gone entirely white. But the eyes were the same flat, watchful grey, and the voice—God, the voice—carried Prague in it still, that low register they had used in the safe house when the walls had ears. "Marcus," Silas said. "You remember." Marcus Thorne lowered himself onto a stool with the care of a man negotiating with his own spine. "I wasn't certain you would. You always had a talent for forgetting the inconvenient ones." Silas felt the old reflexes stir, the catalogue of exits, the count of bodies in the room. He let them settle. "What are you drinking?" "Whatever you're not. I don't trust your taste anymore. Eighteen years is a long time for a palate to decline." "Nineteen." Marcus's mouth twitched. "You're counting. That's interesting. I'd assumed you'd stopped." He glanced around the bar, taking in the photographs, the curling maps, the green light bleeding through the front window. "This is what you wanted, then. All those years of talking about it. The little kingdom. The drinks and the dim lights and nobody asking your real name." He said it without malice, which was worse than malice would have been. Silas poured two glasses of the Talisker he kept beneath the register for occasions he hadn't believed would come. He pushed one across the worn mahogany. "You've changed," he said. "I've been ill. There's a difference. Men change. The ill merely become more honestly themselves." Marcus turned the glass in his fingers, and Silas saw the tremor there, faint but constant, a tide that never went out. "Pancreas. They give me until the spring. I've decided to disbelieve them out of spite, but the body keeps its own counsel." The widower turned a page. The students laughed at something soft. Silas heard none of it. "I'm sorry," he said. "Don't." Marcus drank, and his eyes closed briefly at the burn. "That's not why I came. I didn't cross half a city to collect your sympathy. I came because I've been making a list. The people I left things unsaid with. You're near the top, Si. You've always been near the top of my lists, one way or another." The signet ring on Silas's right hand caught the light as he poured himself a measure he had no intention of finishing. "We said everything in Prague." "We said nothing in Prague." Marcus's voice didn't rise, but something in it hardened, the steel under the rust. "We screamed at each other in a stairwell while a man bled out two floors below, and you called it saying everything. I've thought about that stairwell for nineteen years. I've redecorated it a thousand times. Sometimes you stay. Sometimes I follow you. Mostly I just stand there and watch the door close and listen to that leg of yours going down the stairs—" He gestured at it, the bad knee. "Tap. Drag. Tap. Drag. I could still pick it out of a crowd." Silas's hand found the edge of the bar. The injury throbbed on cue, the way old wounds do when they're named. "I made the call I had to make. The asset was compromised. If I'd stayed—" "He had a daughter." "I know he had a daughter." "She'd be twenty-five now. About the age of that girl who lives above you—oh, don't look surprised, I still keep my hand in. The delivery girl. Carter." Marcus offered a thin smile. "I always wondered if you took strays in to make up for it. The ones you couldn't carry out of the fire." The accusation landed somewhere beneath Silas's ribs and stayed there, lodged like shrapnel. He thought of Aurora coming down the back stairs each morning, the dark hair, the wariness she carried like a coat she couldn't take off, the way she watched the door of his bar the way he had taught himself never to stop watching doors. He had never asked himself why he'd let her stay. He resented Marcus, dying and unkind, for handing him the answer. "You came here to wound me," Silas said quietly. "No." For the first time something cracked in the older man's composure, and beneath it Silas saw the friend he had buried alive in a Prague stairwell—younger, frightened, brilliant, loyal past the point of sense. "I came to tell you that I understood. Eventually. It took me the better part of two decades and a death sentence, but I got there. You were right. The asset was burned, the operation was lost, and if you'd stayed we'd both have died in that building for the sake of a feeling." Marcus pushed the empty glass back across the bar. "I hated you because being right cost you nothing. But it did, didn't it. It's been costing you ever since. Look at you. Hiding behind a bookshelf in Soho, taking in strays, counting the years you swore you'd stopped counting." The neon buzzed. The students gathered their coats. The widower closed his book at last, on the same page, and shuffled out into the dark. Silas refilled both glasses, though his own remained untouched. "Stay," he said. The word came out rough, unpractised. "It's early. The back room's free. We could—" He stopped, because there was no clean end to the sentence, no version of it that wasn't a stairwell with the door held open this time. Marcus considered the whisky, and the maps, and the man across from him grown old in a way he had refused to witness. "All right," he said. "I'll stay a while." It was not enough. It was nineteen years too late. But Silas felt the door, for once, decline to close.
created_at"2026-06-01T12:13:19.213Z" 6/1/2026, 12:13:19 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4205
moderation_latency(null)
generation_time44635
tokens_prompt867
tokens_completion1772
native_tokens_prompt1238
native_tokens_completion2459
native_tokens_completion_images(null)
native_tokens_reasoning166
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"
usage0.067665
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01LtucR4rVcj13awGcqXvJU3"
is_byokfalse
latency1595
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780315999-5c89q9eQ7QL3mo5Idazo"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780315999-z71nFl8aHROyH78nu09G"
upstream_id"msg_01LtucR4rVcj13awGcqXvJU3"
total_cost0.067665
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
88.89% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags18
adverbTagCount2
adverbTags
0"He glanced around [around]"
1"Silas said quietly [quietly]"
dialogueSentences32
tagDensity0.563
leniency1
rawRatio0.111
effectiveRatio0.111
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1112
totalAiIsmAdverbs0
found(empty)
highlights(empty)
80.00% AI-ism character names
Target: 0 AI-default names (16 tracked, −20% each)
codexExemptions
0"Blackwood"
found
0"Marcus"
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
77.52% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1112
totalAiIsms5
found
0
word"familiar"
count1
1
word"silence"
count1
2
word"pulse"
count1
3
word"footsteps"
count1
4
word"throbbed"
count1
highlights
0"familiar"
1"silence"
2"pulse"
3"footsteps"
4"throbbed"
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
narrationSentences52
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount1
narrationSentences52
filterMatches(empty)
hedgeMatches
0"tended to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences66
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen71
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1105
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions14
unquotedAttributions0
matches(empty)
35.15% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions32
wordCount653
uniqueNames9
maxNameDensity2.3
worstName"Silas"
maxWindowNameDensity3.5
worstWindowName"Silas"
discoveredNames
Silas15
Raven1
Nest1
God1
Prague2
Marcus9
Thorne1
Talisker1
Aurora1
persons
0"Silas"
1"Marcus"
2"Thorne"
3"Aurora"
places
0"Raven"
1"Prague"
globalScore0.351
windowScore0.5
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences35
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1105
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences66
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs31
mean35.65
std33.62
cv0.943
sampleLengths
090
119
29
33
476
53
635
725
820
91
1072
1130
1259
1316
144
1559
1627
17103
1836
194
206
2154
2279
239
24138
2525
269
2743
2823
298
3020
91.77% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences52
matches
0"been padded"
1"named"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs113
matches(empty)
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount6
semicolonCount0
flaggedSentences4
totalSentences66
ratio0.061
matches
0"The early evening crowd at The Raven's Nest was thin and reliable—a translator who came for the silence, two students who pretended to understand the maps on the walls, a widower who drank gin and read the same paperback he never finished."
1"So when the footsteps came—uneven, deliberate, with a hitch he recognized before he placed it—he set the glass down."
2"But the eyes were the same flat, watchful grey, and the voice—God, the voice—carried Prague in it still, that low register they had used in the safe house when the walls had ears."
3"\"No.\" For the first time something cracked in the older man's composure, and beneath it Silas saw the friend he had buried alive in a Prague stairwell—younger, frightened, brilliant, loyal past the point of sense."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount659
adjectiveStacks0
stackExamples(empty)
adverbCount16
adverbRatio0.024279210925644917
lyAdverbCount5
lyAdverbRatio0.007587253414264037
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences66
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences66
mean16.74
std15.08
cv0.901
sampleLengths
028
14
242
316
419
59
63
712
825
96
1033
113
1220
1315
1417
154
164
1720
181
193
2028
2141
2219
237
244
2537
2622
275
286
295
304
3111
3248
3322
345
3519
3671
3713
388
3913
4015
414
426
4332
4422
4513
4645
4710
4811
499
45.45% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats10
diversityRatio0.36363636363636365
totalSentences66
uniqueOpeners24
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences47
matches(empty)
ratio0
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount12
totalSentences47
matches
0"He rarely did anymore."
1"He let them settle."
2"He glanced around the bar,"
3"He said it without malice,"
4"He pushed one across the"
5"He gestured at it, the"
6"He thought of Aurora coming"
7"He had never asked himself"
8"He resented Marcus, dying and"
9"He stopped, because there was"
10"It was not enough."
11"It was nineteen years too"
ratio0.255
13.19% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount42
totalSentences47
matches
0"The green neon buzzed its"
1"He rarely did anymore."
2"The early evening crowd at"
3"Silas knew the rhythm of"
4"the man said"
5"Silas looked up."
6"The face across the bar"
7"The hair had gone entirely"
8"Marcus Thorne lowered himself onto"
9"Silas felt the old reflexes"
10"He let them settle."
11"Marcus's mouth twitched."
12"He glanced around the bar,"
13"He said it without malice,"
14"Silas poured two glasses of"
15"He pushed one across the"
16"Marcus turned the glass in"
17"The widower turned a page."
18"The students laughed at something"
19"Silas heard none of it."
ratio0.894
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences47
matches(empty)
ratio0
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences18
technicalSentenceCount1
matches
0"The early evening crowd at The Raven's Nest was thin and reliable—a translator who came for the silence, two students who pretended to understand the maps on th…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags18
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags8
fancyCount0
fancyTags(empty)
dialogueSentences32
tagDensity0.25
leniency0.5
rawRatio0
effectiveRatio0
81.0655%