NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-09-23-01M37PK35RDVNWYRTG0NJVTGAP
Run Details
Model:
Claude Opus 5.5 (Reasoning)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
1m 9s
Cost:
$0.117520
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
100.00%
Adverbs in dialogue tags
(details)
88.94%
AI-ism adverb frequency
(details)
100.00%
AI-ism character names
(details)
100.00%
AI-ism location names
(details)
83.42%
AI-ism word frequency
(details)
100.00%
Cliché density
(details)
100.00%
Emotion telling (show vs. tell)
(details)
100.00%
Filter word density
(details)
100.00%
Gibberish response detection
(details)
100.00%
Markdown formatting overuse
(details)
100.00%
Missing dialogue indicators (quotation marks)
(details)
66.67%
Name drop frequency
(details)
100.00%
Narrator intent-glossing
(details)
100.00%
"Not X but Y" pattern overuse
(details)
100.00%
Overuse of "that" (subordinate clause padding)
(details)
100.00%
Paragraph length variance
(details)
99.00%
Passive voice overuse
(details)
100.00%
Past progressive (was/were + -ing) overuse
(details)
100.00%
Em-dash & semicolon overuse
(details)
94.00%
Purple prose (modifier overload)
(details)
100.00%
Repeated phrase echo
(details)
100.00%
Sentence length variance
(details)
75.61%
Sentence opener variety
(details)
23.81%
Adverb-first sentence starts
(details)
91.43%
Pronoun-first sentence starts
(details)
67.14%
Subject-first sentence starts
(details)
35.71%
Subordinate conjunction sentence starts
(details)
100.00%
Technical jargon density
(details)
86.54%
Useless dialogue additions
(details)
100.00%
Dialogue tag variety (said vs. fancy)
(details)
90.4088%
Overall
Model input
System
You are an expert and award-winning novel writer in the dark Mystery genre. Your readers are hooked on your stories and can't wait to read the book you have in store. <important> - MUST: Start each chapter in medias res (in the middle of action). AVOID talking about the weather, time of day, the position of the sun, or other boring stuff. - The instructions/summary are just a that, a summary. Feel free to add details, stretch sections and add interesting transitions/descriptions/fillers. - When called for it, have fast-paced action, but otherwise take things slow. This is an experience, and not for people with short attention spans. Enjoy the wine, not slurp Red Bull. - Add descriptions when transitioning places/times/etc, or when coming by new places (e.g. a corner shop, a cafe, etc.). But remember: NOT at the start or end of a chapter. - MUST: AVOID ending in internal monologue, reminiscing or waiting for the next day. A good chapter end is when we're ending right when shit hits the fan. We want to have the reader be excited for what comes next. So no reminiscing, contemplating or summarizing the day. It's popcorn time! </important>
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="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> <proseGuidelines> <styleGuide> - Write in past tense and use British English spelling and grammar - Keep a Flesch reading ease score of 60 - Respect the the Royal Order of Adjectives: The order is: opinion, size, age, shape, color, origin, material, purpose, followed by the noun itself (e.g., "a lovely little old rectangular green French silver whittling knife") - Respect the ablaut reduplication rule (e.g. tick-tock, flip-flop) - Write in active voice - Passive voice: <bad>The book was read by Sarah.</bad> - Active voice: <good>Sarah read the book.</good> - Reduce the use of passive verbs - <bad>For a moment, I was tempted to throw in the towel.</bad> - <good>For a moment, I felt tempted to throw in the towel.</good> - Avoid misplaced modifiers that can cause confusion when starting with "-ing" words: - <bad>Considering going to the store, the empty fridge reflected in Betty's eyes.</bad> - <good>Betty stared into the empty fridge. It was time to go to the store.</good> - Avoid redundant adverbs that state the obvious meaning already contained in the verb: - <bad>She whispered quietly to her mom.</bad> - <good>She whispered to her mom.</good> - Use stronger, more descriptive verbs over weak ones: - <bad>Daniel drove quickly to his mother's house.</bad> - <good>Daniel raced to his mother's house.</good> - Omit adverbs that don't add solid meaning like "extremely", "definitely", "truly", "very", "really": - <bad>The movie was extremely boring.</bad> - <good>The movie was dull.</good> - Use adverbs to replace clunky phrasing when they increase clarity: - <bad>He threw the bags into the corner in a rough manner.</bad> - <good>He threw the bags into the corner roughly.</good> - Avoid making simple thoughts needlessly complex: - <bad>After I woke up in the morning the other day, I went downstairs, turned on the stove, and made myself a very good omelet.</bad> - <good>I cooked a delicious omelet for breakfast yesterday morning.</good> - Never backload sentences by putting the main idea at the end: - <bad>I decided not to wear too many layers because it's really hot outside.</bad> - <good>It's sweltering outside today, so I dressed light.</good> - Omit nonessential details that don't contribute to the core meaning: - <bad>It doesn't matter what kind of coffee I buy, where it's from, or if it's organic or not—I need to have cream because I really don't like how the bitterness makes me feel.</bad> - <good>I add cream to my coffee because the bitter taste makes me feel unwell.</good> - Always follow the "show, don't tell" principle. For instance: - Telling: <bad>Michael was terribly afraid of the dark.</bad> - Showing: <good>Michael tensed as his mother switched off the light and left the room.</good>- Telling: <bad>I walked through the forest. It was already Fall, and I was getting cold.</bad> - Showing: <good>Dry orange leaves crunched under my feet. I pulled my coat's collar up and rubbed my hands together.</good>- Add sensory details (sight, smell, taste, sound, touch) to support the "showing" (but keep an active voice) - <bad>The room was filled with the scent of copper.</bad> - <good>Copper stung my nostrils. Blood. Recent.</good> - Use descriptive language more sporadically. While vivid descriptions are engaging, human writers often use them in bursts rather than consistently throughout a piece. When adding them, make them count! Like when we transition from one location to the next, or someone is reminiscing their past, or explaining a concept/their dream... - Avoid adverbs and clichés and overused/commonly used phrases. Aim for fresh and original descriptions. - Avoid writing all sentences in the typical subject, verb, object structure. Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. Like so: <good>Locked. Seems like someone doesn't want his secrets exposed. I can work with that.</good> - Convey events and story through dialogue. It is important to keep a unique voice for every character and make it consistent. - Write dialogue that reveals characters' personalities, motivations, emotions, and attitudes in an interesting and compelling manner - Leave dialogue unattributed. If needed, only use "he/she said" dialogue tags and convey people's actions or face expressions through their speech. Dialogue always is standalone, never part of a paragraph. Like so: - <bad>"I don't know," Helena said nonchalantly, shrugging her shoulders</bad> - <good>"No idea" "Why not? It was your responsibility"</good> - Avoid boring and mushy dialog and descriptions, have dialogue always continue the action, never stall or include unnecessary fluff. Vary the descriptions to not repeat yourself. Avoid conversations that are just "Let's go" "yes, let's" or "Are you ready?" "Yes I'm ready". Those are not interesting. Think hard about every situtation and word of text before writing dialogue. If it doesn't serve a purpose and it's just people talking about their day, leave it. No one wants to have a normal dinner scene, something needs to happen for it to be in the story. Words are expensive to print, so make sure they count! - Put dialogue on its own paragraph to separate scene and action. - Use body language to reveal hidden feelings and implied accusations- Imply feelings and thoughts, never state them directly - NEVER use indicators of uncertainty like "trying" or "maybe" - NEVER use em-dashes, use commas for asides instead </styleGuide> <voiceGuide> Each character in the story needs to have distinct speech patterns: - Word choice preferences - Sentence length tendencies - Cultural/educational influences - Verbal tics and catchphrases Learn how each person talks and continue in their style, and use their Codex entries as reference. <examples> - <bad>"We need to go now." "Yes, we should leave." "I agree."</bad> <good>"Time's up." "Indeed, our departure is rather overdue." "Whatever, let's bounce."</good> - Power Dynamic Example: <bad> "We need to discuss the contract." "Yes, let's talk about it." "I have concerns." </bad> <good> "A word about the contract." "Of course, Mr. Blackwood. Whatever you need." "The terms seem..." A manicured nail tapped the desk. "Inadequate." "I can explain every-" "Can you?" </good> </examples> </voiceGuide> <dialogueFlow> When writing dialogue, consider that it usually has a goal in mind, which gives it a certain flow. Make dialogue sections also quite snappy in the back and forth, and don't spread the lines out as much. It's good to have details before, after, or as a chunk in-between, but we don't want to have a trail of "dialogue breadcrumbs" spread throughout a conversation. <examples> - Pattern 1 - Question/Deflection/Revelation: <good> "Where were you last night?" "Work. The usual." "Lipstick's an interesting shade for spreadsheets." </good> - Pattern 2 - Statement/Contradiction/Escalation: <good> "Your brother's clean." "Tommy doesn't touch drugs." "I'm holding his tox screen." </good> - Pattern 3 - Observation/Denial/Truth: <good> "That's a new watch." "Birthday gift." "We both know what birthdays mean in this business." </good> - Example - A Simple Coffee Order: <bad> "I'll have a coffee." "What size?" "Large, please." </bad> <good> "Black coffee.""Size?""Large. Been a long night." "That bodega shooting?" "You watch too much news." "My brother owns that store." </good> This short exchange: - Advances plot (reveals connection to crime) - Shows character (cop working late) - Creates tension (unexpected connection) - Sets up future conflict (personal stake) - Example - Dinner Scene: <bad> "Pass the salt." "Here you go." "Thanks." </bad> <good> "Salt?" "Perfect as is. Mother's recipe." "Mother always did prefer... bland things." "Unlike your first wife?" </good> - Example - Office Small Talk: <bad> "Nice weather today." "Yes, very nice." "Good for golf." </bad> <good> "Perfect golf weather." "Shame about your membership." "Temporary suspension. Board meets next week." "I know. I called the vote." </good> </examples> </dialogueFlow> <subtextGuide> - Layer dialogue with hidden meaning: <bad>"I hate you!" she yelled angrily.</bad> <good>"I made your favorite dinner." The burnt pot sat accusingly on the stove.</good> - Create tension through indirect communication: <bad>"Are you cheating on me?"</bad> <good>"Late meeting again?" The lipstick stain on his collar caught the light.</good> <examples> - Example 1 - Unspoken Betrayal: <bad> "Did you tell them about our plans?" "No, I would never betray you." "I don't believe you." </bad> <good> "Funny. Johnson mentioned our expansion plans today." "The market's full of rumors." "Mentioned the exact numbers, actually." The pen in his hand snapped. </good> - Example 2 - Failed Marriage: <bad> "You're never home anymore." "I have to work late." "I miss you." </bad> <good> "Your dinner's in the microwave. Again." "Meetings ran long." "They always do." She folded the same shirt for the third time. </good> - Example 3 - Power Struggle: <bad> "You can't fire me." "I'm the boss." "I'll fight this." </bad> <good> "That's my father's nameplate you're sitting behind." "Was." "The board meeting's on Thursday." </good> </examples> </subtextGuide> <sceneDetail> While writing dialogue makes things more fun, sometimes we need to add detail to not have it be a full on theatre piece. <examples> - Example A (Power Dynamic Scene) <good> "Where's my money?" The ledger snapped shut. "I need more time." "Interesting." He pulled out a familiar gold pocket watch. My mother's. "Time is exactly what you bargained with last month." "That was different-" "Was it?" The watch dangled between us. "Four generations of O'Reillys have wound this every night. Your mother. Your grandmother. Your great-grandmother.Shall we see who winds it next?" </good> - Example B (Action Chase) It's much better to be in the head of the character experiencing it, showing a bit of their though-process, mannerisms and personality: <good> Three rules for surviving a goblin chase in Covent Garden: Don't run straight. Don't look back. Don't let them herd you underground. I broke the first rule at Drury Lane. Rookie mistake. The fruit cart I dodged sailed into the wall behind me. Glass shattered. Someone screamed about insurance. *Tourist season's getting rough*, the scream seemed to say. Londoners adapt fast. "Oi! Market's closed!" The goblin's accent was pure East End. They're evolving. Learning. I spotted the Warren Street tube station sign ahead. *Shit.* There went rule three. </good> - Example C (Crime Scene Investigation) <good> "Greek." Davies snapped photos of the symbols. "No, wait. Reverse Greek." "Someone's been watching too many horror films." I picked up a receipt from the floor. Occult supply shop in Camden. Paid by credit card. *Amateur hour*. "Could be dangerous though," Davies said. "Remember Bristol?" "Bristol was Sanskrit. And actual cultists." I pointed to the nearest symbol. "This genius wrote 'darkness' backwards but used a Sigma instead of an S. It's summoning Instagram followers at best." "Speaking of followers..." Davies pointed to heavy foot traffic in the dust. Multiple sets. All new trainers. *Ah.* "Anyone check local uni paranormal societies?" </good> - Example D (Dialogue-heavy) <good> "Found your card in her wallet." The detective slid it across the table. Worn edges. Folded corner. Three years old at least. "Standard practice. I work missing persons." "Funny thing about missing persons.Eventually they stop being missing. Turn up in the Thames. Under motorways. In pieces." "I don't-" "You found four last year. All breathing." She opened a file. "This would've been your first dead one. If we hadn't found her first." The card felt heavier somehow. </good> </examples> </sceneDetail> <sceneOpenings> KEY RULE: Never open with more than one paragraph of description, no matter how beautiful. Description should be earned through action and dialogue. Instead of opening with setting description, open with: - A character doing something specific - A line of dialogue that raises questions - An unexpected observation - A moment of tension or conflict - Start with a hook that's 1-2 sentences maximum - Follow with a smaller paragraph that provides immediate context - Vary paragraph size from the start to create visual interest </sceneOpenings> </proseGuidelines> Write a chapter based on the following instructions: <instructions> 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. </instructions>
Model response
Messages
Meta
AI
"Don't touch the candles."
Quinn's torch beam caught Reid's
hand halfway to the platform edge.
He froze, fingers an inch
above a stub of black wax, and gave her the look he saved for traffic wardens and his mother-in-law. "Wasn't going to." "You were."
She swept the light along
the tiles. "There are forty-three of them. In rows." "Squatters, ma'am. They light what they can find." Forty-three candles, spaced a stride apart, running the length of the southbound platform like runway lights.
Every one burnt down to
the same height. Quinn crouched and sniffed. Not paraffin.
Something older and fattier that
coated the back of her throat, with a sour note underneath. Tallow. And cloves.
She straightened and rolled her
left shoulder until it clicked. Eighteen years of crouching over the dead had left their mark on her joints.
The station had closed in
1924, and nobody had bothered telling the tiles.
Oxblood and cream still ran
in neat bands up the curved walls, glazed and cracked, streaked with a century of soot.
A torn poster advertised a
tonic for nervous exhaustion. Above the tunnel mouth, the enamel sign still read the station's name, though someone had scratched out half the letters and carved a small, crude eye in their place.
The air down here held
the stale, mineral
chill
of a cellar, and each breath tasted of iron filings.
Uniform had strung a single
lamp from a cable at the far end.
Its light pooled around the
body and gave up after a few yards. "Right."
Reid flipped open his notebook
. He liked his notebook. "Male, forties, no ID. Rough sleeper found him about four this morning. Name of Terry. Says he comes down through the maintenance hatch off Kentish Town Road when it's cold. Saw the lights, thought it was a party, found chummy here instead." "Where's Terry now?" "Van. Shaking like a leaf and asking for a can of Special Brew." "Did Terry light the candles?" "Says not." "Do you believe him?" Reid scratched his jaw. "I believe he couldn't light forty-three of anything in a straight line, ma'am. Not without falling on the tracks." Quinn walked towards the lamp.
She kept to the tiled
lip of the platform, where the dust lay thinnest.
Her boots made the only
sound, a dry, gritty crunch that the tunnel swallowed whole.
The dead man lay on
his front beside a green iron bench. Good coat. Charcoal wool, Savile Row cut, the kind of tailoring that came with a waiting list. Expensive oxblood Italian leather brogues.
His right arm stretched out
ahead of him, fingers curled around something small. "Overdose, I reckon," Reid said behind her. "Or his heart went. Posh lad comes down for a thrill, takes something he shouldn't, keels over. The Camden lot have been doing raves in these old stations for years. We shut one in Mornington Crescent last spring." "A rave." "Candles. Mood lighting." He shrugged. "Kids." "Then where are the kids?" "Scarpered when he went down, didn't they." Quinn swung the torch to the floor between the bench and the tunnel. The dust here lay thick and grey, soft as ash.
It had settled for decades
without a draught to trouble it.
Her own footprints marked a
clean trail behind her. Reid's big size elevens stamped beside them. The uniforms had come in from the other end and stopped at the lamp. In front of the body, nothing. Not a single mark. "Callum. Look at the floor." He looked. "Dusty." "His shoes are clean." Reid squinted at the brogues. The soles
were polished
, barely scuffed. Not a grain of grey on the welt. "He walked in, then... Hang on." "He didn't walk in. There's no trail. Not his, not anyone's. Your rave of scarpering kids left no footprints." "So someone carried him." "And left no footprints either." Reid opened his mouth. Closed it. Wrote something in the notebook that Quinn suspected was a swear word.
She knelt beside the body
and pressed two gloved fingers to the dead man's neck, below the jaw. Cold. Colder than the platform. She rolled back his cuff. The skin of his wrist had a waxy, bluish sheen, and when she pressed it, the flesh stayed white. "Lividity's on his back," she said. "He's lying on his front." "Yes." "So he's been moved. After death. Few hours at least." Reid said it
slowly
, as though the words cost him money. "Doc'll confirm." "Doc will confirm. Help me turn him." They rolled him together.
He came over stiff, like
a plank, and the smell rose with him. Not rot. River. Silt and weed and diesel. Quinn's nose wrinkled.
She pinched the fabric of
his coat. Dry as paper. But the smell soaked through it, as if the man himself had spent a week under Blackfriars Bridge and then dried out in an airing cupboard. His face was ordinary. Soft chin, a good barber, a faint white line where a wedding ring had lived until recently. His eyes were open. Both pupils had turned silver. Not clouded, not milky. Silver, like the backs of old mirrors. Reid swore. Out loud this time. "Contacts," he said. "Has to be. Festival stuff. You can buy them online." Quinn didn't answer.
She was looking at the
dead man's mouth. Something pale showed between his teeth.
She eased his jaw open
with her thumb and drew it out. A disc of bone, the size of a two-pound coin. Yellowed. Smooth from handling. One face carried a carved crescent moon. The other bore a hole bored clean through the centre. A cold spot opened under her sternum.
She had seen one of
these before. Three years ago. In a plastic evidence bag on DS Morris's desk, the night before he went into a car park in Southwark and did not come out. The bag had vanished from the evidence store two days later. Nobody logged it. Nobody signed for it. Nobody remembered it existing, except her. "Ma'am?" "Bag it." Her voice came out level. Good. "Separately. Photograph it before it goes in." "What is it?" "Evidence." Reid knew better than to push. He fished out a bag and held it open, and she dropped the disc in. It struck the plastic with a click far too loud for its
weight
. She turned to the outstretched hand. The fingers had locked in rigor, and she worked them loose one at a time,
gently
, the way she'd once unpicked her daughter's fist from a stolen biscuit. A compass. A small old round brass compass, no wider than her palm. Green verdigris furred the casing, crusting in the hinge and the crown. Someone had
etched
the face with fine symbols, not letters, not numbers. They ran in rings around the centre and made her eyes slide off them when she looked straight on. The needle was moving. It didn't settle north. It didn't settle anywhere. It swung, slow and deliberate, like a dowser's rod feeling for water. "Magnetic interference," Reid said. "Old cables. The Northern line's right through that wall." "The Northern line runs east of here." "Well. Some line." The needle stopped. It pointed at the far wall behind the bench, at a stretch of tiling Quinn had passed without a second glance. She raised the torch. A rectangle of clean tile, eight feet wide. No soot. No grime. The glaze gleamed as though a cleaner had buffed it last week. On either side, the old filth ran thick as tar. She swept the beam along the platform.
Now that she knew to
look, she found them everywhere. Clean rectangles in the dust, evenly spaced, one beside each pair of candles. The footprints of tables. Of stalls. Heavy things that had stood here for a long time and then, all together, gone. "Someone's packed up," she said. "Recently. A whole market's worth." "Market? Down here?" "You said Camden." "I said raves." "People don't sell things at raves from trestle tables, Callum." "They sell pills." "Not by candlelight in rows of forty-three." She stood and brushed off her knees. "When was the full moon?" Reid stared at her. "You what?" "The full moon. When?" He pulled out his phone and thumbed at it, frowning, ready to humour her. "Last night. Why does that..." He trailed off, because Quinn had gone back to the body. She slid her hand into the inner pocket of the charcoal coat and found a folded slip of card. Stiff, cream, printed with a crest. The British Museum. Department of Antiquities, Restricted Archive. An access request, dated four days ago, for a catalogue number she didn't recognise. At the bottom, in neat looping ink, the countersignature of the researcher who had approved it. E. Kowalski. Quinn read the name twice. She folded the card and bagged it herself. "I want a name for this," she said. "Kowalski. British Museum. Research staff. Before lunch." "On it." Reid
was writing
. "You think she's our killer?" "I think she's the last person to know what he
was looking
for." The compass twitched in her hand. She looked down. The needle had left the clean wall. It swung, slow at first, then faster, until it pointed down the platform into the black mouth of the southbound tunnel. It
trembled
there, the brass warming against her glove like a living thing. The first candle guttered. Quinn's head snapped up. None of them
were lit
. None of them had
been lit
since she arrived. But at the far end of the platform, beside the tunnel, a small flame had bloomed on the first black stub. As she watched, the second caught. Then the third. They lit one by one, marching towards her. "Ma'am." Reid's voice had gone
very
thin. "Ma'am, is that the uniforms?" "Radio them." He fumbled for his handset. Static hissed out, then a dull roar, like wind across a microphone. Or like breathing. The candles kept coming. Twenty. Thirty. Their light shone the wrong colour, a pale, sickly green that turned the tiles to bruises. It reached the lamp. The lamp bulb popped with a crack like a gunshot, and Reid ducked and swore, and the dark rushed in everywhere the candles didn't reach. The forty-third candle, the one at Quinn's feet, the one Reid had nearly touched, flared to life. In the tunnel mouth, something moved. Footsteps. Unhurried. Leather soles on gravel, the rhythm she had heard beside her on a thousand night shifts, the slight hitch in the left stride from an old rugby knee. Her torch shook. She didn't let it drop. "Harlow." The voice came out of the dark, warm and tired and
gently
amused, exactly as it had sounded the last time she'd heard it, through a car window in Southwark three years ago. "You took your time, love. I've been waiting."
created_at
"2026-09-23T17:56:36.187Z"
9/23/2026, 5:56:36 PM
model
"anthropic/claude-opus-5.5-20260921"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4486
moderation_latency
(null)
generation_time
68480
tokens_prompt
4492
tokens_completion
2998
native_tokens_prompt
6540
native_tokens_completion
4568
native_tokens_completion_images
(null)
native_tokens_reasoning
880
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"end_turn"
service_tier
"default"
usage
0.11752
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790186196-oluiWkP4rkQkWeezhHOt"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790186196-TjWWIbr8H8no8A4RSZub"
upstream_id
"msg_011CfLoWV35eTr52XuZwfn4o"
provider_responses
0
endpoint_id
"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id
"msg_011CfLoWV35eTr52XuZwfn4o"
is_byok
false
latency
1532
model_permaslug
"anthropic/claude-opus-5.5-20260921"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.11752
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Claude Platform on AWS"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
13
adverbTagCount
0
adverbTags
(empty)
dialogueSentences
66
tagDensity
0.197
leniency
0.394
rawRatio
0
effectiveRatio
0
88.94%
AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount
1809
totalAiIsmAdverbs
4
found
0
adverb
"slowly"
count
1
1
adverb
"gently"
count
2
2
adverb
"very"
count
1
highlights
0
"slowly"
1
"gently"
2
"very"
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)
83.42%
AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount
1809
totalAiIsms
6
found
0
word
"chill"
count
1
1
word
"weight"
count
1
2
word
"etched"
count
1
3
word
"magnetic"
count
1
4
word
"trembled"
count
1
5
word
"footsteps"
count
1
highlights
0
"chill"
1
"weight"
2
"etched"
3
"magnetic"
4
"trembled"
5
"footsteps"
100.00%
Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches
0
maxInWindow
0
found
(empty)
highlights
(empty)
100.00%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
168
matches
(empty)
100.00%
Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount
0
hedgeCount
0
narrationSentences
168
filterMatches
(empty)
hedgeMatches
(empty)
100.00%
Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences
220
gibberishSentences
0
adjustedGibberishSentences
0
longSentenceCount
0
runOnParagraphCount
0
giantParagraphCount
0
wordSaladCount
0
repetitionLoopCount
0
controlTokenCount
0
repeatedSegmentCount
0
maxSentenceWordsSeen
42
ratio
0
matches
(empty)
100.00%
Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans
0
markdownWords
0
totalWords
1809
ratio
0
matches
(empty)
100.00%
Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions
18
unquotedAttributions
0
matches
(empty)
66.67%
Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions
44
wordCount
1415
uniqueNames
16
maxNameDensity
1.13
worstName
"Reid"
maxWindowNameDensity
3
worstWindowName
"Reid"
discoveredNames
Reid
16
Forty-three
1
Savile
1
Row
1
Italian
1
Quinn
12
Blackfriars
1
Bridge
1
Morris
1
Southwark
2
Good
2
British
1
Museum
1
Antiquities
1
Restricted
1
Archive
1
persons
0
"Reid"
1
"Quinn"
2
"Morris"
places
0
"Blackfriars"
1
"Bridge"
2
"Southwark"
globalScore
0.935
windowScore
0.667
100.00%
Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences
91
glossingSentenceCount
0
matches
(empty)
100.00%
"Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches
0
per1kWords
0
wordCount
1809
matches
(empty)
100.00%
Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount
0
totalSentences
220
matches
(empty)
100.00%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
98
mean
18.46
std
18.24
cv
0.988
sampleLengths
0
4
1
35
2
3
3
16
4
8
5
49
6
24
7
91
8
26
9
52
10
3
11
13
12
5
13
2
14
4
15
23
16
34
17
47
18
45
19
2
20
6
21
5
22
7
23
13
24
51
25
10
26
5
27
3
28
4
29
19
30
6
31
19
32
4
33
5
34
18
35
47
36
6
37
5
38
1
39
23
40
7
41
64
42
25
43
16
44
6
45
13
46
29
47
31
48
7
49
59
99.00%
Passive voice overuse
Target: ≤2% passive sentences
passiveCount
3
totalSentences
168
matches
0
"were polished"
1
"were lit"
2
"been lit"
100.00%
Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount
2
totalVerbs
226
matches
0
"was looking"
1
"was writing"
100.00%
Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount
0
semicolonCount
0
flaggedSentences
0
totalSentences
220
ratio
0
matches
(empty)
94.00%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1420
adjectiveStacks
1
stackExamples
0
"small old round brass"
adverbCount
31
adverbRatio
0.021830985915492956
lyAdverbCount
10
lyAdverbRatio
0.007042253521126761
100.00%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
220
echoCount
0
echoWords
(empty)
100.00%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
220
mean
8.22
std
6.98
cv
0.849
sampleLengths
0
4
1
11
2
24
3
3
4
9
5
7
6
8
7
16
8
8
9
4
10
2
11
16
12
1
13
2
14
10
15
14
16
13
17
21
18
9
19
29
20
19
21
13
22
13
23
6
24
4
25
42
26
3
27
13
28
5
29
2
30
4
31
4
32
19
33
5
34
14
35
15
36
12
37
2
38
15
39
5
40
13
41
7
42
38
43
2
44
5
45
1
46
5
47
7
48
13
49
10
75.61%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
12
diversityRatio
0.4863636363636364
totalSentences
220
uniqueOpeners
107
23.81%
Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount
1
totalSentences
140
matches
0
"Then the third."
ratio
0.007
91.43%
Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount
45
totalSentences
140
matches
0
"He froze, fingers an inch"
1
"She swept the light along"
2
"She straightened and rolled her"
3
"Its light pooled around the"
4
"He liked his notebook."
5
"She kept to the tiled"
6
"Her boots made the only"
7
"His right arm stretched out"
8
"It had settled for decades"
9
"Her own footprints marked a"
10
"She knelt beside the body"
11
"She rolled back his cuff."
12
"They rolled him together."
13
"He came over stiff, like"
14
"She pinched the fabric of"
15
"His face was ordinary."
16
"His eyes were open."
17
"She was looking at the"
18
"She eased his jaw open"
19
"She had seen one of"
ratio
0.321
67.14%
Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount
110
totalSentences
140
matches
0
"Quinn's torch beam caught Reid's"
1
"He froze, fingers an inch"
2
"She swept the light along"
3
"Every one burnt down to"
4
"Quinn crouched and sniffed."
5
"Something older and fattier that"
6
"She straightened and rolled her"
7
"The station had closed in"
8
"Oxblood and cream still ran"
9
"A torn poster advertised a"
10
"The air down here held"
11
"Uniform had strung a single"
12
"Its light pooled around the"
13
"Reid flipped open his notebook"
14
"He liked his notebook."
15
"Reid scratched his jaw."
16
"Quinn walked towards the lamp."
17
"She kept to the tiled"
18
"Her boots made the only"
19
"The dead man lay on"
ratio
0.786
35.71%
Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount
1
totalSentences
140
matches
0
"Now that she knew to"
ratio
0.007
100.00%
Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences
60
technicalSentenceCount
2
matches
0
"Charcoal wool, Savile Row cut, the kind of tailoring that came with a waiting list."
1
"But the smell soaked through it, as if the man himself had spent a week under Blackfriars Bridge and then dried out in an airing cupboard."
86.54%
Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags
13
uselessAdditionCount
1
matches
0
"Reid said, as though the words cost him money"
100.00%
Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags
7
fancyCount
0
fancyTags
(empty)
dialogueSentences
66
tagDensity
0.106
leniency
0.212
rawRatio
0
effectiveRatio
0
90.4088%