Run: 2026-05-31-01KSYXQE1CP77MAXYSY6AWYZH6

Run Details

Duration:
49.2s
Cost:
$0.075465
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 sign buzzed the way it always did just after the rain, a low electric hum that Silas had stopped hearing years ago. He noticed it now only because the bar was empty, the last of the Tuesday regulars having drifted out into the wet Soho dark, leaving him alone with the maps on the walls and the photographs that no longer looked like anyone he knew. He was wiping down the zinc with a cloth that had gone grey when the door opened and the cold came in, and with it a man he had not seen in nineteen years. Silas knew him by the walk before he knew him by the face. There was a particular economy in the way Daniel Frost moved, a habit of taking up no more space than the world strictly required, and time had not unlearned it from him. The face had aged the way good faces do, settling rather than collapsing, but the eyes had changed. That was the first thing. The eyes used to be quick. Now they were careful. "They told me you'd died," Frost said. "In a manner of speaking." "In a manner of speaking, I did." Silas set down the cloth. His left knee announced itself as he came around the bar, a familiar grinding complaint he had long since stopped apologizing to. "Sit down before you say anything else. Whatever you've come to say, you'll say it better sitting." Frost sat. He took the stool nearest the wall, his back angled so he could see the door, and Silas felt something tighten in his chest at the sight of it — that old reflexive geometry, the arithmetic of exits and sightlines that the Service taught you and never let you forget. He had thought himself the only one left who still did it. To see it in another man was like hearing a dead language spoken aloud in the street. "You've gone fat," Frost said. "I've gone comfortable. There's a difference. You've gone thin. What'll you have?" "Whatever you're pouring yourself." Silas was not, in fact, pouring himself anything; he had given that up the year he bought the place, when he understood that a man who drank alone in his own bar was a man telling the truth to no one. But he took down two glasses and the bottle of Talisker he kept for occasions he could not have named in advance, and he poured, and the peat-smell rose between them like a tide coming in over old ground. "Prague," Frost said, when he had drunk. "I wondered if it'd be Prague." "It's always Prague, isn't it. With you and me." Frost turned the glass a quarter-turn on the zinc, watching the light move in it. "I read the file. The official one. The one with all the holes in it. You took the fall for that, Silas. You let them write it so it was your fault, and it wasn't, and we both know it wasn't." "We don't know anything of the kind." "I do." The careful eyes came up. "I authorized the timing. I moved the meeting up by forty minutes because Langley wanted it tied off before the weekend, and I told you that came from above when it came from me. If you'd had those forty minutes you'd have seen the surveillance change. You'd have called it off. The boy would be alive and your knee would still bend." He said it flatly, the way men say things they have rehearsed for years in rooms where no one was listening. "I've been carrying that around like a stone in my shoe since 2005. I came to put it down." The neon hummed. Somewhere out on Greek Street a taxi sluiced through standing water. Silas looked at his old friend — and Frost had been his friend, that was the thing the years had nearly buried, they had been young and frightened together in a dozen cities and had each, at least once, held the other's life in his hands like a sparrow — and felt the strange flatness that comes when a long-awaited absolution arrives and finds the wound already closed over something else. "You think I didn't know," Silas said quietly. Frost went still. "You think I sat in that hospital in Vienna with a knee they'd rebuilt out of titanium and guesswork, and I didn't work out the timing? I had nothing else to do for eleven weeks, Daniel. I worked out everything." He drank, finally, and let the smoke of it sit on his tongue. "I knew it came from you. I knew you'd dressed it up as orders. And I let them write the file the way they wrote it, and I never said your name, not in the hearing, not in the debrief, not once." "Why?" "Because you had a daughter who was four years old." Silas set the glass down with great gentleness, as though it might break, as though he might. "And because I was the field man and you were the desk, and that's the deal, isn't it. That was always the deal. We take it so you don't have to. I didn't do you a kindness. I did the job. The last job. And then I bought a bar so I'd never have to do another." Frost's hand had begun, very slightly, to shake. He pressed it flat against the zinc to stop it. "Nineteen years," he said. "I could have come nineteen years ago." "You couldn't have. You weren't ready to need me to forgive you. You're only ready now because you're frightened of something." Silas studied him — the thinness, the new carefulness, the way the man had checked the exits. "What is it. Doctors?" "Pancreas." Frost said it the way you say a foreign word you've finally learned to pronounce. "They give me till spring. Maybe summer if I'm difficult about it, and I intend to be difficult about it." And there it was, the whole shape of the thing, arriving in the small dim room with its dead men's photographs: not a confession but a leave-taking, a man clearing his accounts before the lights went out, going down the list of debts and finding Silas's name near the top. Silas felt the old tenderness for him rise up, undiminished, ridiculous, surviving everything the way weeds survive concrete. "Then drink your whisky," he said, "and don't be difficult about that, at least." He refilled both glasses though Frost's was hardly touched. "I forgave you in Vienna, you stubborn bastard. I forgave you while they were still picking the gravel out of my leg. You've spent nineteen years paying interest on a loan that was settled the same week you took it out." Frost laughed — a small, wrecked sound — and wiped his eyes with the heel of one hand, the way he never would have allowed himself to in any of the cities of their youth. "We were good once," he said. "We were terrible," said Silas. "But we were terrible together. Sit a while. It's raining. There's nowhere either of us has to be." And the green sign hummed, and the rain came down on Soho, and the two old men sat in the lit cave of the bar with all the years standing around them like patient ghosts, saying nothing for a long time, which was the only language left that meant what they needed it to mean.
created_at"2026-05-31T11:46:52.09Z" 5/31/2026, 11:46:52 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4236
moderation_latency150
generation_time48997
tokens_prompt867
tokens_completion1917
native_tokens_prompt1238
native_tokens_completion2771
native_tokens_completion_images(null)
native_tokens_reasoning193
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"
usage0.075465
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01FEu6LXsEbLc3V5YkpQrpQF"
is_byokfalse
latency1350
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-1780228012-cRTyfGfr7rlz5aHWT7lP"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780228012-86haSVDGarPFoqRKCWTo"
upstream_id"msg_01FEu6LXsEbLc3V5YkpQrpQF"
total_cost0.075465
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
75.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags15
adverbTagCount2
adverbTags
0"Silas said quietly [quietly]"
1"He drank finally [finally]"
dialogueSentences32
tagDensity0.469
leniency0.938
rawRatio0.133
effectiveRatio0.125
91.99% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1248
totalAiIsmAdverbs2
found
0
adverb"very"
count1
1
adverb"slightly"
count1
highlights
0"very"
1"slightly"
100.00% AI-ism character names
Target: 0 AI-default names (16 tracked, −20% each)
codexExemptions
0"Blackwood"
found(empty)
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
83.97% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1248
totalAiIsms4
found
0
word"electric"
count1
1
word"familiar"
count1
2
word"comfortable"
count1
3
word"tenderness"
count1
highlights
0"electric"
1"familiar"
2"comfortable"
3"tenderness"
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
narrationSentences42
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences42
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences58
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen83
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1254
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions12
unquotedAttributions0
matches(empty)
71.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions32
wordCount766
uniqueNames9
maxNameDensity1.57
worstName"Silas"
maxWindowNameDensity2.5
worstWindowName"Silas"
discoveredNames
Silas12
Tuesday1
Soho2
Daniel1
Frost12
Service1
Talisker1
Greek1
Street1
persons
0"Silas"
1"Daniel"
2"Frost"
3"Service"
places
0"Soho"
1"Greek"
2"Street"
globalScore0.717
windowScore0.833
63.79% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences29
glossingSentenceCount1
matches
0"looked like anyone he knew"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.797
wordCount1254
matches
0"not a confession but a leave-taking, a man clearing his accounts before the light"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences58
matches
0"understood that a"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs30
mean41.8
std32.93
cv0.788
sampleLengths
069
134
278
312
451
581
65
712
84
980
107
116
1265
137
14109
1585
168
173
1895
191
2084
2129
2242
2336
2468
2564
2635
276
2823
2955
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences42
matches(empty)
57.14% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs140
matches
0"was wiping"
1"was like hearing"
2"was listening"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount6
semicolonCount1
flaggedSentences5
totalSentences58
ratio0.086
matches
0"He took the stool nearest the wall, his back angled so he could see the door, and Silas felt something tighten in his chest at the sight of it — that old reflexive geometry, the arithmetic of exits and sightlines that the Service taught you and never let you forget."
1"Silas was not, in fact, pouring himself anything; he had given that up the year he bought the place, when he understood that a man who drank alone in his own bar was a man telling the truth to no one."
2"Silas looked at his old friend — and Frost had been his friend, that was the thing the years had nearly buried, they had been young and frightened together in a dozen cities and had each, at least once, held the other's life in his hands like a sparrow — and felt the strange flatness that comes when a long-awaited absolution arrives and finds the wound already closed over something else."
3"\"You couldn't have. You weren't ready to need me to forgive you. You're only ready now because you're frightened of something.\" Silas studied him — the thinness, the new carefulness, the way the man had checked the exits."
4"Frost laughed — a small, wrecked sound — and wiped his eyes with the heel of one hand, the way he never would have allowed himself to in any of the cities of their youth."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount764
adjectiveStacks0
stackExamples(empty)
adverbCount30
adverbRatio0.03926701570680628
lyAdverbCount11
lyAdverbRatio0.014397905759162303
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences58
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences58
mean21.62
std19.03
cv0.88
sampleLengths
025
144
234
313
432
518
65
76
84
97
105
1112
1222
1317
142
1550
1612
1717
185
1912
204
2141
2239
237
246
2524
2641
277
287
2983
3019
313
3211
3371
348
353
3653
3742
381
3927
4057
418
4210
434
447
4538
464
4716
4820
4950
67.24% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats6
diversityRatio0.46551724137931033
totalSentences58
uniqueOpeners27
92.59% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences36
matches
0"Somewhere out on Greek Street"
ratio0.028
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount9
totalSentences36
matches
0"He noticed it now only"
1"He was wiping down the"
2"His left knee announced itself"
3"He took the stool nearest"
4"He had thought himself the"
5"He said it flatly, the"
6"He drank, finally, and let"
7"He pressed it flat against"
8"he said, He refilled both"
ratio0.25
71.11% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount28
totalSentences36
matches
0"The green neon sign buzzed"
1"He noticed it now only"
2"He was wiping down the"
3"Silas knew him by the"
4"The face had aged the"
5"That was the first thing."
6"The eyes used to be"
7"Silas set down the cloth"
8"His left knee announced itself"
9"He took the stool nearest"
10"He had thought himself the"
11"Silas was not, in fact,"
12"Frost said, when he had"
13"The careful eyes came up"
14"He said it flatly, the"
15"The neon hummed."
16"Silas looked at his old"
17"Silas said quietly"
18"Frost went still."
19"He drank, finally, and let"
ratio0.778
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences36
matches
0"Now they were careful."
1"To see it in another"
ratio0.056
30.08% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences19
technicalSentenceCount3
matches
0"Silas was not, in fact, pouring himself anything; he had given that up the year he bought the place, when he understood that a man who drank alone in his own ba…"
1"Silas looked at his old friend — and Frost had been his friend, that was the thing the years had nearly buried, they had been young and frightened together in a…"
2"And the green sign hummed, and the rain came down on Soho, and the two old men sat in the lit cave of the bar with all the years standing around them like patie…"
91.67% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags15
uselessAdditionCount1
matches
0"Silas set, as though it might break, as though he might"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags9
fancyCount0
fancyTags(empty)
dialogueSentences32
tagDensity0.281
leniency0.563
rawRatio0
effectiveRatio0
86.5418%