NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-04-24-01KQ0PESNM9J9ZKDK60F2NSG5E
Run Details
Model:
GPT-5.5 (Reasoning)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
2m 3s
Cost:
$0.155605
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
100.00%
Adverbs in dialogue tags
(details)
98.08%
AI-ism adverb frequency
(details)
100.00%
AI-ism character names
(details)
100.00%
AI-ism location names
(details)
80.75%
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)
33.33%
Name drop frequency
(details)
100.00%
Narrator intent-glossing
(details)
84.53%
"Not X but Y" pattern overuse
(details)
100.00%
Overuse of "that" (subordinate clause padding)
(details)
100.00%
Paragraph length variance
(details)
100.00%
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)
57.71%
Sentence opener variety
(details)
88.65%
Adverb-first sentence starts
(details)
100.00%
Pronoun-first sentence starts
(details)
50.43%
Subject-first sentence starts
(details)
0.00%
Subordinate conjunction sentence starts
(details)
100.00%
Technical jargon density
(details)
100.00%
Useless dialogue additions
(details)
100.00%
Dialogue tag variety (said vs. fancy)
(details)
89.5827%
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
Detective Harlow Quinn caught the
falling evidence marker before it struck the rail that should not have hummed. “Power’s been dead down here since 1994,”
DS Priya Nair said from
the platform edge. “So either Transport for London lied to me, or the ghost of British Rail has a work ethic.”
Harlow held the yellow marker
between two gloved fingers and looked at the third rail.
A thin vibration trembled through
the stale air, too low for most ears, just enough to set her teeth on edge. “Who touched it?” “No one with plans for lunch.” “Good.”
She placed the marker back
beside a smear of black grit and stepped over a sagging line of police tape.
Her brown eyes swept the
platform once, left to right, floor to ceiling, exits, blind corners, evidence, witnesses, threats.
Closely cropped salt-and-pepper hair sharpened
the hard lines of her face.
The worn leather watch on
her left wrist ticked beneath her cuff, a small, stubborn sound in a place that had no business keeping time.
The abandoned station beneath Camden
looked less like a crime scene than a theatre that had lost its audience halfway through a performance. Collapsed ticket barriers leaned at odd angles. Old posters peeled from tiled walls, their adverts for lager and holidays blistered by damp. Beyond them sprawled something stranger, a hidden row of market stalls built from brass poles, painted shutters, patched
velvet
and scavenged Tube signs. Glass jars lined one counter. Bundles of dried roots hung from another.
A cage the size of
a bread bin rocked
gently
, though nothing moved inside it.
SOCO lamps threw white glare
over the platform.
The light killed none of
the shadows. It only gave them edges.
The body lay beside the
old northbound tunnel mouth. Male. Late forties. Thin. Expensive grey wool suit, wrong for the muck under him. One shoe missing. Left hand clenched around a small off-white disc. Right hand open, palm up, fingers curled as if he had released something at the last second. Priya nodded at the corpse. “Name’s pending. No wallet, no phone, no keys. Someone cut his throat, nicked his life and his Oyster card. Lovely little Camden postcard.”
Harlow crouched without letting her
coat touch the floor. “Cut throat?” “That’s what Franklin says.”
Franklin, the forensic pathologist, looked
up from his kit with the pained expression of a man who had lost an argument with a corpse. “I said the neck wound resembles a cut.” “Resembles.” His mouth flattened. “Fine. It does not behave like one. Better?” Harlow studied the wound.
A dark line circled the
dead man’s neck, neat as a collar. No ragged edges. No spray on the tiles behind him. Blood had soaked the front of his shirt, but the platform around him held only three drops, each round, each separate, each too polite. “Blood’s wrong.” Priya folded her arms. “Franklin thinks someone drained him elsewhere and dumped him here. I think drug lot. Occult garnish. This place screams rich idiots with powders and candles.” “This place screams someone cleaned in a hurry.” Priya glanced at the stalls. “Cleaned? Quinn, there’s mould on the mould.” Harlow reached toward the nearest stall and stopped short of contact. A rectangle of dust marked the counter, clean around the edges, empty in the middle. Something had sat there for a long time and left recently. Other pale patches dotted the shelves. Not random theft. Selected removals. She looked down. The floor carried layered tracks: SOCO boots, uniforms, Priya’s square-heeled prints, Franklin’s careful shuffle. Beneath them lay older marks. Narrow feet. Bare feet. Something with three claws. Wheel marks from small carts.
Then a blank fan of
clean concrete around the body. “No drag marks.” “Strong bastard carried him.” “In one arm?” Priya’s brow creased. Harlow pointed with the evidence marker. “He’s missing a shoe, but his sock has no dirt. If someone carried him from the street, the sock picks up grit. If he lost the shoe here, we find it.” “Unless the killer took it. Killers collect trophies.” “Bad ones collect trophies. Careful ones collect evidence.” Franklin cleared his throat. “The blood on his shirt isn’t all his.” Priya looked at him. “You were saving that?” “I enjoy a dramatic reveal when I spend my morning in a dead Tube station.” Harlow kept her gaze on the body. “How much?” “Shirt front, cuffs, under the nails. Different clotting. Different colouration. Lab will confirm, but I’d wager three sources.” “Three victims?” “Or one victim and two donors with a flair for mess.” Priya exhaled through her nose. “Drug deal, then. Fight went bad. They cut him, staged him, left us a haunted jumble sale.” Harlow lifted the dead man’s left hand. The fingers resisted. Rigor had set hard in the grip.
She eased them open one
at a time. The disc in his palm was not plastic or ivory. It had a porous grain, a little crescent notch and a symbol burnt into one side, three lines crossing inside a circle. Bone. Human, if Harlow trusted the old cold bite in her
stomach
. “Token,” Priya said. “Franklin already had a face about it.” “A metatarsal, I think,” Franklin said. Harlow looked up. “You think?” “I prefer certainty. The world has chosen theatre.” A constable approached from the stairwell, guiding a small woman in a brown coat under the tape. Curly red hair escaped its pins. Round glasses flashed in the lamp light. A worn leather satchel bumped against her hip, heavy enough to pull her shoulder down. Freckles stood out against skin gone tight with strain. Priya frowned. “Who brought a civilian down here?” The constable swallowed. “She says she’s from the British Museum. Asked for Detective Quinn by name.” Harlow did not move. “Did she?” The woman tucked a strand of hair behind her left ear. The gesture looked practised and involuntary, the body speaking before the mouth could arrange a lie. “Eva Kowalski. Restricted archives. I received a call about recovered antiquities.” Priya gave a short laugh. “Antiquities. That’s generous. Half this lot looks nicked from a theatre skip.” Eva’s eyes moved over the stalls, then landed on the dead man’s hand.
Her face drained of its
remaining colour. “That is not a theatre skip.” “No?” “No. And you should not keep that token uncovered.” Priya stepped closer. “Because it’s evidence?” “Because it’s an invitation.” Harlow rose, slow and exact. “Who called you?” Eva pressed her lips together. “A man. He did not give a name.” “But he had mine.” “Yes.” “Convenient.” “Detective, I catalogue Mesopotamian curse tablets and forged saint bones for a living. My definition of convenient died during postgraduate study.” Priya looked at Harlow. “I like her. Annoying, but
efficient
.” Harlow held the bone token up in its evidence bag. “What opens for this?” Eva stared at the bag, then at the old ticket barriers. “Not opens. Admits.” “To what?” Eva’s fingers found her satchel strap and tightened around the cracked leather. “A market.” Priya gestured at the stalls. “We’ve got eyes.” “You have the shell of it. The actual market moves.” “Markets don’t move. Traders move.” “This one moves locations every full moon.” Priya stared at her. “Of course it does.” Harlow studied Eva’s face. The woman had no delight in the absurdity. No eagerness to impress.
Only calculation, and a fear
that had settled into muscle. “Name.” Eva took a breath. “The Veil Market.” Franklin muttered something that
sounded like a prayer and a complaint
. Harlow walked to the nearest stall. Small paper labels hung from black thread. Some bore prices in pounds. Others used marks she did not know. One jar held silver filings suspended in clear gel. Another contained teeth, each drilled through the root. A third held a wet black feather that tapped the glass from the inside. Priya joined her. “Illegal animal parts, counterfeit antiques, narcotics, bit of cult branding. It still fits.” “No, it doesn’t.” “Enlighten me.” Harlow pointed to the shelf. “See the dust?” “Yes, it has achieved sentience.” “Items removed from here, here and here. Same shape, same gap. Someone took selected stock before we arrived. But the body area has no market tracks under our prints. That patch of clean concrete starts under him and spreads outward.” Priya looked down again. “So?” “So he did not arrive after the market emptied. The market emptied around him.” Eva spoke from behind them. “Or he fell through after it left.” The humming in the rail deepened. A SOCO lamp
flickered
. Harlow turned. “Explain.” Eva looked at the tunnel mouth and did not step closer. “Some entrances lead to places that are adjacent rather than distant. If they close badly, things fall out at the seam.” Priya rubbed her forehead. “Adjacent. Seam. I miss burglars.” Harlow returned to the corpse and examined the dead man’s open right hand. A thin crescent of green marked the skin between thumb and forefinger. Verdigris.
She looked at the surrounding
floor. “There.” A small brass compass lay half-hidden beneath the dead man’s coat hem.
Its casing carried a patina
of verdigris, and protective sigils crowded the face in tight rings. The needle did not point north.
It quivered toward the tiled
wall behind the old ticket office. Priya bent. “Cute. Occult Boy Scout.” Eva took one sharp step forward. “Do not touch that bare-handed.” Harlow looked at her. “You recognise it.” “Yes.” “Name it.” “A Veil Compass. Shade work. It points toward the nearest rift or portal.” Priya closed her eyes. “Franklin, when I die, tell people I remained professional.” “You have done no such thing.” Harlow bagged the compass. Through the clear plastic, the needle held steady,
not toward the tunnel, not toward the stairs, but toward a blank stretch of cream
and oxblood tile. “Franklin. Body temperature.” “Lower than expected.” “How much lower?” “Enough to annoy me.” “Lividity?” “Back and calves, which would make sense if he lay flat.” Franklin nodded toward the corpse’s twisted position on his side. “He hasn’t lain flat here.” Priya’s scepticism thinned. “Dumped after death.” “No.” Harlow crouched again and lifted the corpse’s lapel. “Look at the jacket.” Priya leaned in. The grey wool had flattened across the back,
not from lying on concrete, but from pressure along parallel lines
. Narrow bars, evenly spaced. The same marks crossed the back of his trousers. “A cage?” Priya said. “Or a rack.” Eva’s voice dropped. “Transit frame.” Harlow looked at her. “Keep going.” “I’ve read customs notes. Old ones. Some traders move goods through apertures using iron frames. Living things dislike the passage.” “Dislike,” Priya said. “That’s doing a lot of work.” Eva tucked her hair again, faster this time. “Living things arrive changed. Dead things arrive honest.” Harlow looked at the dead man’s throat. A
perfect
dark ring. Not a blade. A boundary. Something had closed around his neck and sealed him like wire through clay. “He got caught when an opening shut.” Priya’s face hardened. “Then where’s the rest of him? If a portal guillotine exists, and I hate that sentence, we’d have separation. Head off. Body here.” “Only if the opening cut through space like a door. This didn’t cut. It rejected.” Franklin lifted a brow. “That is not a medical term.” “It is now.” Harlow examined the three blood drops on the floor. Each sat near the compass, not the wound. She angled her torch. Tiny scratches scarred the concrete around them, fresh, frantic, made by fingernails. “He arrived alive.” Franklin went still. “No. The neck trauma would have killed him before he hit the ground.” “Unless it happened as he arrived.”
She moved the torch beam
to his open right hand, the verdigris stain, the broken nails, the three drops. “He held the compass. He landed here. He used it, or checked it. Then he crawled three inches before he died.” Priya looked at the wall where the compass pointed. “Toward that.” “Yes.” “Uniforms checked it. Solid tile.” “Uniforms checked a wall in an abandoned station. They did not check a seam.” Priya held Harlow’s gaze. “You’re buying her story?” “I’m buying evidence. Her story is expensive wrapping.” Eva flinched at that, but stayed silent. Harlow crossed to the tiled wall. The old ticket office behind it had lost its glass long ago. Dust caked the sill. Someone had chalked symbols along the lower tiles, then wiped them away in haste. Harlow saw the ghost of the lines in the grout. Not pentagrams. Not film nonsense. Repeated marks,
measured
, functional. A little old rectangular black British metal sign hung above the doorway, half torn from one screw: STAFF ONLY. Beneath it, fresh blood marked the tile at knee height. Priya saw it too. “That wasn’t in the first sweep.” “Because they looked where the body lay.” Harlow knelt. The blood smear curved left to right. Not a handprint. A knuckle, dragged across the tile. Beside it lay a single thread of red hair. Eva went rigid. Priya noticed. “That yours?” Eva touched her curls, then lowered her hand. “There are many red-haired women in London.” “Not many who wander into buried crime scenes with bedtime stories.” Harlow lifted the thread with tweezers and bagged it. “Where were you before the constable collected you?” “At the cordon.” “Before that.” “The museum.” “Who saw you?” “My supervisor.” “Name.” “Dr Harwood.” “Call him.” “I do not have my phone.” Priya’s smile vanished. “Why not?” Eva opened her satchel. Books filled it, along with pencils, folded papers, a small torch and a cloth pouch. No phone. “I left in haste.” “That’s not an answer.” “No. It is a confession of poor judgement.” Harlow took the satchel, ignoring Eva’s protest, and searched it with quick hands. A notebook. Archive gloves. A copy of a seventeenth-century inventory. A slim volume in Latin. At the bottom, wrapped in a museum storage cloth, lay a second bone token. Priya’s hand moved to her cuffs. “Well.” Eva closed her eyes. “That is not mine.” “Strange place to keep someone else’s bone.” “It was placed there.” “By the man who called you?” Eva looked at the wall. “No. By whatever wanted me here.” The hum from the rail rose into a hard metallic whine. Every lamp on the platform
flickered
once, twice, then steadied with a greenish tint. Franklin backed away from the corpse. “Quinn.” The body’s open right hand had moved. Harlow saw it before anyone spoke. The dead fingers scraped the concrete, one broken nail leaving a pale line in the grime. The compass inside the evidence bag
trembled
in her hand. Its needle spun once, twice, then snapped toward Eva’s satchel. Priya drew her baton. “Dead men don’t point.” “This one does.” The corpse’s jaw worked. No breath entered his chest.
His lips parted over teeth
stained black at the gums. A sound crawled out, wet and broken, half voice, half static from a radio lost underground. Eva whispered something in Polish and stepped back. Harlow moved closer, because training beat fear and habit beat both. The corpse’s eyes opened. They held no whites.
Only dark, glossy depth, like
oil over a drain. “Harlow,” it rasped. Priya froze.
The worn leather watch on
Harlow’s wrist stopped ticking. The dead man’s head turned toward the tiled wall. The ghost chalk marks flared blue through dust and grime, line by line, until the whole STAFF ONLY sign shook on its screw.
Then the corpse spoke in
DS Morris’s voice. “Run.” The wall split from floor to ceiling, and a blood-slick hand thrust through the crack, gripping Eva Kowalski by the throat.
created_at
"2026-04-24T21:31:12.446Z"
4/24/2026, 9:31:12 PM
model
"openai/gpt-5.5-20260423"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
39564
moderation_latency
(null)
generation_time
123105
tokens_prompt
4671
tokens_completion
5344
native_tokens_prompt
4157
native_tokens_completion
5070
native_tokens_completion_images
0
native_tokens_reasoning
1546
native_tokens_cached
3840
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
"completed"
usage
0.155605
router
(null)
provider_responses
0
endpoint_id
"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id
"resp_00ac7752e8edd83e0169ebe12090dc8195a557c4b6e87817ac"
is_byok
false
latency
296
model_permaslug
"openai/gpt-5.5-20260423"
provider_name
"OpenAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer
(null)
request_id
"req-1777066272-Gl4qRVvaXo2jsWGlMCB5"
session_id
(null)
api_type
"completions"
id
"gen-1777066272-Rl02NOHFQkvNGbBzwQ30"
upstream_id
"resp_00ac7752e8edd83e0169ebe12090dc8195a557c4b6e87817ac"
total_cost
0.155605
cache_discount
0.01728
upstream_inference_cost
0
provider_name
"OpenAI"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
8
adverbTagCount
1
adverbTags
0
"Harlow crouched again [again]"
dialogueSentences
146
tagDensity
0.055
leniency
0.11
rawRatio
0.125
effectiveRatio
0.014
98.08%
AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount
2598
totalAiIsmAdverbs
1
found
0
adverb
"gently"
count
1
highlights
0
"gently"
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)
80.75%
AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount
2598
totalAiIsms
10
found
0
word
"trembled"
count
2
1
word
"velvet"
count
1
2
word
"stomach"
count
1
3
word
"efficient"
count
1
4
word
"flickered"
count
2
5
word
"quivered"
count
1
6
word
"perfect"
count
1
7
word
"measured"
count
1
highlights
0
"trembled"
1
"velvet"
2
"stomach"
3
"efficient"
4
"flickered"
5
"quivered"
6
"perfect"
7
"measured"
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
212
matches
(empty)
100.00%
Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount
2
hedgeCount
0
narrationSentences
212
filterMatches
0
"watch"
hedgeMatches
(empty)
100.00%
Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences
350
gibberishSentences
0
adjustedGibberishSentences
0
longSentenceCount
0
runOnParagraphCount
0
giantParagraphCount
0
wordSaladCount
0
repetitionLoopCount
0
controlTokenCount
0
repeatedSegmentCount
0
maxSentenceWordsSeen
40
ratio
0
matches
(empty)
100.00%
Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans
0
markdownWords
0
totalWords
2598
ratio
0
matches
(empty)
100.00%
Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions
19
unquotedAttributions
0
matches
(empty)
33.33%
Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions
106
wordCount
1672
uniqueNames
13
maxNameDensity
2.03
worstName
"Harlow"
maxWindowNameDensity
4
worstWindowName
"Harlow"
discoveredNames
Harlow
34
Quinn
1
Priya
33
Nair
1
Camden
1
Tube
1
Franklin
9
Eva
21
British
1
Latin
1
Polish
1
Morris
1
Kowalski
1
persons
0
"Harlow"
1
"Quinn"
2
"Priya"
3
"Nair"
4
"Camden"
5
"Tube"
6
"Franklin"
7
"Eva"
8
"Morris"
9
"Kowalski"
places
0
"Latin"
1
"Polish"
globalScore
0.483
windowScore
0.333
100.00%
Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences
118
glossingSentenceCount
1
matches
0
"sounded like a prayer and a complaint"
84.53%
"Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches
3
per1kWords
1.155
wordCount
2598
matches
0
"not toward the tunnel, not toward the stairs, but toward a blank stretch of cream"
1
"not toward the stairs, but toward a blank stretch of cream"
2
"not from lying on concrete, but from pressure along parallel lines"
100.00%
Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount
0
totalSentences
350
matches
(empty)
100.00%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
247
mean
10.52
std
13.23
cv
1.258
sampleLengths
0
18
1
33
2
36
3
3
4
6
5
1
6
75
7
95
8
20
9
9
10
42
11
5
12
23
13
9
14
2
15
4
16
24
17
8
18
1
19
3
20
8
21
50
22
2
23
4
24
25
25
8
26
5
27
7
28
48
29
3
30
42
31
3
32
4
33
3
34
3
35
6
36
31
37
8
38
8
39
4
40
8
41
4
42
4
43
15
44
7
45
2
46
18
47
2
48
11
49
5
100.00%
Passive voice overuse
Target: ≤2% passive sentences
passiveCount
0
totalSentences
212
matches
(empty)
100.00%
Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount
0
totalVerbs
271
matches
(empty)
100.00%
Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount
0
semicolonCount
0
flaggedSentences
0
totalSentences
350
ratio
0
matches
(empty)
94.00%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1679
adjectiveStacks
1
stackExamples
0
"old rectangular black British"
adverbCount
40
adverbRatio
0.023823704586063133
lyAdverbCount
11
lyAdverbRatio
0.006551518761167362
100.00%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
350
echoCount
0
echoWords
(empty)
100.00%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
350
mean
7.42
std
5.96
cv
0.803
sampleLengths
0
18
1
15
2
18
3
15
4
21
5
3
6
6
7
1
8
20
9
19
10
11
11
25
12
23
13
7
14
15
15
23
16
5
17
7
18
15
19
8
20
7
21
5
22
9
23
1
24
2
25
1
26
10
27
3
28
8
29
17
30
5
31
23
32
9
33
2
34
4
35
24
36
8
37
1
38
3
39
8
40
4
41
12
42
3
43
7
44
24
45
2
46
4
47
25
48
8
49
5
57.71%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
13
diversityRatio
0.36857142857142855
totalSentences
350
uniqueOpeners
129
88.65%
Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount
5
totalSentences
188
matches
0
"Closely cropped salt-and-pepper hair sharpened"
1
"Then a blank fan of"
2
"Only calculation, and a fear"
3
"Only dark, glossy depth, like"
4
"Then the corpse spoke in"
ratio
0.027
100.00%
Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount
16
totalSentences
188
matches
0
"She placed the marker back"
1
"Her brown eyes swept the"
2
"It only gave them edges."
3
"His mouth flattened."
4
"She looked down."
5
"She eased them open one"
6
"It had a porous grain,"
7
"Her face drained of its"
8
"She looked at the surrounding"
9
"Its casing carried a patina"
10
"It quivered toward the tiled"
11
"She angled her torch."
12
"She moved the torch beam"
13
"Its needle spun once, twice,"
14
"His lips parted over teeth"
15
"They held no whites."
ratio
0.085
50.43%
Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount
154
totalSentences
188
matches
0
"Detective Harlow Quinn caught the"
1
"DS Priya Nair said from"
2
"Harlow held the yellow marker"
3
"A thin vibration trembled through"
4
"She placed the marker back"
5
"Her brown eyes swept the"
6
"The worn leather watch on"
7
"The abandoned station beneath Camden"
8
"Glass jars lined one counter."
9
"A cage the size of"
10
"SOCO lamps threw white glare"
11
"The light killed none of"
12
"It only gave them edges."
13
"The body lay beside the"
14
"Priya nodded at the corpse."
15
"Harlow crouched without letting her"
16
"Franklin, the forensic pathologist, looked"
17
"His mouth flattened."
18
"Harlow studied the wound."
19
"A dark line circled the"
ratio
0.819
0.00%
Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount
0
totalSentences
188
matches
(empty)
ratio
0
100.00%
Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences
64
technicalSentenceCount
3
matches
0
"The worn leather watch on her left wrist ticked beneath her cuff, a small, stubborn sound in a place that had no business keeping time."
1
"The abandoned station beneath Camden looked less like a crime scene than a theatre that had lost its audience halfway through a performance."
2
"Right hand open, palm up, fingers curled as if he had released something at the last second."
100.00%
Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags
8
uselessAdditionCount
0
matches
(empty)
100.00%
Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags
5
fancyCount
0
fancyTags
(empty)
dialogueSentences
146
tagDensity
0.034
leniency
0.068
rawRatio
0
effectiveRatio
0
89.5827%