Run: 2026-04-24-01KQ0PF9RV0ZWBVVKNAH0AWPFR

Run Details

Model:
GPT-5.5
Duration:
1m 19s
Cost:
$0.093985
Provider:
OpenAI

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

AI
“Don’t touch the tokens.” Detective Harlow Quinn’s voice cut across the abandoned platform, and the constable froze with one gloved hand hovering over a neat little pile of pale discs beside the body. The discs looked like coins at first glance. Bone, at second. Human, if the faint porous grain and yellowing edge meant what Quinn thought it meant. A dead man lay half in, half out of a Tube carriage that had not run on any public line since the seventies. His right hand gripped the door frame. His left arm stretched towards the platform edge, fingers hooked as if he had clawed at the air and found nothing worth holding. Someone had drawn a circle around him in black salt. Quinn stepped over the flaking yellow safety line and let her gaze move before her feet did. Old platform tiles. Soot in the grout. Posters bleached to ghosts behind cracked glass. A rusted sign that still promised trains to Mornington Crescent, though no commuter had stood here for decades without lying about it afterwards. Beneath Camden. Disused. Unregistered in the case log until ninety-three minutes ago, when a maintenance crew reported “a disturbance” and then refused to go back down. Now the place crawled with uniforms, scene lights, camera flashes, and too much nervous breathing. “Name?” “Unknown male, mid-thirties. No wallet.” DS Patel stood near the carriage door with a notebook tucked against his chest. His blue nitrile gloves looked too bright in the grime. “First officer reckons robbery gone sideways. There’s a market down here, apparently. Illegal stalls. Weird tat. Drugs, knives, stolen antiquities.” “Apparently?” Patel glanced past her at the boarded arches along the far wall. “One of the transport lads used the phrase ‘night bazaar for goths’. He also cried in the lift, so I’m taking his statement in parts.” Quinn crouched outside the salt circle. Her knees clicked. She ignored them. The man’s coat had been expensive once, dark wool with horn buttons, cut narrow through the waist. Mud streaked the hem. Not London mud. Too red. His shoes carried grey dust and something like crushed mica in the seams. One lace had snapped. No blood on the soles. “Robbery leaves the watch?” Patel followed her look. A silver watch sat on the dead man’s wrist, face cracked but present. The strap had soaked up sweat and dark residue. A ring remained on his right hand. Gold. Signet. The stone had been prised out, leaving four bent claws around an empty setting. “They took what mattered.” “Then why leave those?” Quinn nodded to the bone tokens. The constable drew his hand back another inch. Patel leaned closer, careful of the salt. “Payment dumped in a panic?” “Twelve tokens, stacked in three piles of four.” Quinn pointed without touching. “Panic doesn’t count.” The platform hummed. Not electricity. The lights above came from portable rigs, and the old station wiring had long since rotted into black veins along the ceiling. This hum sat lower, under her ribs. The same ugly note had lived in her teeth on the night Morris vanished from a locked boiler room in Whitechapel, leaving his blood on the walls and no body in the room. Quinn flexed her left wrist. The worn leather strap of her watch creaked. “Who found him?” “Two maintenance workers. Said they saw stalls here.” “Stalls?” “Tables. Cloth awnings. People. Then nothing when they brought BTP back. Like everyone packed up in ten minutes.” Quinn looked down the platform. The Veil Market had left traces even hurried hands could not erase. Scratches in the dust marked where stalls had stood in two tidy rows. Wax drips hardened along the tiled wall, green, black, deep blue. A broken glass vial glittered under a bench. Something inside it twitched when the camera flash struck. At the far end, an archway had been bricked up long ago. Someone had painted an eye over the bricks in tar. It looked wet. Patel cleared his throat. “You’ve heard of this place.” “I’ve heard of people who swear they haven’t.” “That’s not the same thing.” “No.” Quinn rose and moved around the circle. The black salt crunched under one shoe. She stopped. Looked back. The salt had not scattered beneath her sole. She lifted her foot. The line remained unbroken, though she had stepped through it. A cold pressure slid over the toe of her boot and withdrew, like skin rejecting a splinter. Patel saw it. His pen stilled. “That normal?” “In murder, no.” A forensic tech named Lane knelt by the dead man’s head. Her short plait brushed her collar as she adjusted the light. “Detective, there’s bruising around the throat. Deep. Manual strangulation seems likely. No ligature marks. Petechiae present.” “Hands?” “Not a simple grip. Thumb marks sit wrong.” Lane shifted the light. “Too many pressure points.” Quinn crouched again. The bruises bloomed under the dead man’s jaw in dark oval patches. Five on one side. Five on the other. Then three smaller marks beneath the chin. A human could make some of that if they had extra fingers or borrowed a second set of hands at an odd angle. His mouth hung open. A black smear marked his tongue. “Any smell?” Lane gave her a look. “Down here? Damp, mould, rat piss, whatever your constable nearly stepped in.” “From him.” Lane bent closer, grimaced. “Copper. Aniseed. Burnt hair.” Patel scribbled. “Poison?” “Poison doesn’t usually throttle a man halfway out of a train.” “Unless he fled after taking it.” Quinn looked at him. Patel held her stare for half a second, then tapped his notebook. “Alternative interpretation. He bought something. Consumed it. Had a reaction. Someone robbed him while he convulsed. The salt circle is theatre.” “Who draws theatre under a fleeing man?” “A person in a market for goths.” “Goths use chalk. Easier on the knees.” A uniform coughed into his fist and turned it into a poor attempt at professionalism. Quinn bent near the man’s hand. Dirt packed beneath the nails. Two nails had split to the quick. He had dragged himself. Not far, though. The dust behind his body showed no long smear from the tracks. Instead, two shallow heel marks ended sharply at the circle’s edge. “He didn’t crawl from the tunnel.” Patel frowned. “He came from the train.” “Did he?” She stepped to the carriage doorway. The train interior smelt of old vinyl, wet metal, and a sweetness that sat badly with death. The carriage had no number plate. Its windows carried a film of grime from the inside, not the out. Rows of torn seats faced each other beneath adverts in languages Quinn did not recognise. Not foreign languages. Not quite. The letters curved in ways the eye tried to fix and failed. A blood smear marked the threshold. Small. Transfer, not a wound. On the floor inside, dust lay thick except for one clean patch shaped like the dead man’s back. Patel came up behind her, stopping before the step. “Body fell from inside. There’s your answer.” Quinn braced one hand on the cold metal pole and leaned in. “No scuff marks by the seats. No shoe prints in the aisle. No handprints, except on the door frame. If he died in there, who carried him to the door?” “Strong robber.” “Strong robber who left no footprints in dust.” Patel said nothing. Quinn stepped into the carriage. The hum deepened. Her watch ticked once, too loud, then stopped. She looked at her left wrist. The second hand on the worn leather watch had frozen at 12:07. Morris had died at 12:07, according to a clock in a room with no working power. Her jaw tightened. “Ma’am?” “Stay on the platform.” “That sounds less like evidence and more like an omen.” “Then treat it as both.” She moved down the aisle. Her shoes stirred dust that curled in pale ribbons. Each step made the train groan softly on dead springs. Halfway along, a seat had been slashed open. Horsehair stuffing bulged from the cut. Inside the wound, someone had hidden a small brass compass. Quinn pulled an evidence bag from her pocket and used its edge to tease the object free. The compass casing bore a patina of verdigris, green against old brass. Protective sigils scored the face in tiny, steady cuts. The needle did not point north. It spun once, shivered, then snapped towards the bricked arch at the end of the platform. Patel leaned in from the doorway despite himself. “What’s that?” “Not his wallet.” “Looks antique.” “Looks useful.” Lane appeared beside Patel, camera ready. “Bag it in place first.” Quinn held still while the camera clicked. The needle trembled, then pulled harder towards the arch, so hard it scraped against the glass. Patel watched the movement. “Magnet under the platform?” “Would tug towards the floor.” “Electrical source?” “No live mains.” “Then what?” Quinn slid the compass into the evidence bag. The plastic crackled. The needle kept pointing through the bag, through her palm, towards the painted eye. “The thing he came for.” A sound rose from the tunnel beyond the train. Not the rumble of a service line. A wet scrape. Pause. Scrape. Like a sack dragged over stone. Every officer on the platform turned. “Rat?” the constable offered. No one thanked him. Quinn stepped back out of the carriage. Her watch began ticking again, fast for three beats, then settled. “Patel, clear non-essential personnel to the stairs.” He blinked. “You think the killer’s still here?” “I think our dead man came through that arch, landed inside that train, and died before he understood the price.” “That arch is brick.” “So was Morris’s room.” Patel’s face changed. The name meant something in the department even now. Every unsolved case became a ghost story if people whispered long enough, but Morris had become something worse, a warning with no lesson attached. Lane lowered her camera. “Detective?” Quinn crossed to the bricked arch. Up close, the painted eye held more than tar. Fine black grains glimmered inside the strokes. Burnt bone. Iron filings. Salt. The same salt as the circle around the body, but mixed to cling. The bricks around the symbol showed no mortar cracks. No gap. No hidden door seam. Yet the dust before it told another truth. Footprints led out from the wall. Bare footprints. Three sets, narrow and long, with toes too jointed. They crossed the platform towards the dead man and stopped outside the salt circle. None went back. “Patel.” He came beside her, reluctant but sharp-eyed. “Tell me robbery again.” He stared at the prints. His throat worked. “Robbery is struggling.” “Good. Keep going.” “Victim arrives with goods or payment. Meets sellers. Deal collapses. They kill him and leave through another exit.” “Where?” Patel turned, scanning the station. “Tunnel. Service stairs. Hidden passage.” “Then why do their tracks stop?” He crouched, held his pen above the nearest print. “Because the platform was cleaned.” “Only where they stood? Without smearing dust? Without crossing their own prints?” “Fine. They didn’t walk away.” Lane’s voice came from behind them. “People don’t vanish.” Quinn looked at the dead man’s stretched hand, the snapped lace, the empty signet claws. “No. People get taken, hidden, cut up, misnamed, filed wrong. Vanish is what we say when we run out of torch.” The scraping sound came again. Closer. The constable swore. This time, no one corrected him. A maintenance worker at the stairwell shouted, “There’s someone in the tunnel!” Quinn spun. At the far end, past the dead train, a figure staggered into the spill of scene light. Small. Red curls matted against a freckled face. Round glasses sat crooked, one lens cracked. A worn leather satchel hung from one shoulder, so full of books that its strap had torn halfway through. Eva Kowalski clutched the wall with one hand and pressed the other to her side. Blood slipped between her fingers. Quinn recognised her from a file spread across her kitchen table three nights before. Aurora’s friend. British Museum restricted archives. Occult researcher. Present in too many peripheral photographs around too many unexplained incidents. Patel raised a hand. “Stay there. Police.” Eva laughed once, a dry broken sound, then coughed red onto the tiles. “You’ve got police? How lovely. Have you got a priest with tenure?” Quinn moved towards her, one hand near her baton. “Eva Kowalski.” Eva’s green eyes flicked to Quinn’s face, then to the watch on her wrist. Something in her expression locked. “Oh. You.” “We need medical.” “No, you need to break the circle before it finishes counting.” Patel glanced at the body. “Counting what?” Eva pointed with two shaking fingers. The bone tokens beside the corpse had changed. The three piles of four now stood as two piles of five and one pile of two. No one had touched them. Lane stepped back from the body. “I photographed those. They were not like that.” The compass inside Quinn’s evidence bag jerked against her palm. Its needle swung from the painted eye to the corpse, then back again. Tick-tock. Tick-tock. A brass heartbeat. Quinn looked at Eva. “Start explaining.” Eva tucked a blood-stuck curl behind her left ear, smearing red across her cheek. “That man stole a Veil Compass from the wrong stall. He thought it pointed to doors. It does. He didn’t ask what comes through them.” A hollow knock sounded from inside the bricked arch. Once. Twice. Then, from beneath the black salt circle, the dead man’s fingers closed around the platform edge with a crack of splitting bone.
created_at"2026-04-24T21:31:28.936Z" 4/24/2026, 9:31:28 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency880
moderation_latency(null)
generation_time78839
tokens_prompt4671
tokens_completion3792
native_tokens_prompt4157
native_tokens_completion3016
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached3840
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"completed"
usage0.093985
router(null)
provider_responses
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endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_05253eabbbfb07f40169ebe13113648190a71e61fa7ff45da8"
is_byokfalse
latency335
model_permaslug"openai/gpt-5.5-20260423"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777066288-oIE80dqYARuq1ftMQPPQ"
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api_type"completions"
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upstream_id"resp_05253eabbbfb07f40169ebe13113648190a71e61fa7ff45da8"
total_cost0.093985
cache_discount0.01728
upstream_inference_cost0
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
totalTags7
adverbTagCount0
adverbTags(empty)
dialogueSentences91
tagDensity0.077
leniency0.154
rawRatio0
effectiveRatio0
95.58% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount2261
totalAiIsmAdverbs2
found
0
adverb"sharply"
count1
1
adverb"softly"
count1
highlights
0"sharply"
1"softly"
80.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found
0"Patel"
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
93.37% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount2261
totalAiIsms3
found
0
word"trembled"
count1
1
word"scanning"
count1
2
word"flicked"
count1
highlights
0"trembled"
1"scanning"
2"flicked"
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
narrationSentences213
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount5
hedgeCount1
narrationSentences213
filterMatches
0"look"
1"watch"
hedgeMatches
0"tried to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences297
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen33
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords2261
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions9
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions73
wordCount1692
uniqueNames16
maxNameDensity1.6
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Eva"
discoveredNames
Harlow1
Quinn27
Tube1
Mornington1
Crescent1
Camden1
Patel18
London1
Morris3
Whitechapel1
Veil1
Market1
Lane8
Kowalski1
Museum1
Eva6
persons
0"Harlow"
1"Quinn"
2"Patel"
3"Morris"
4"Market"
5"Lane"
6"Kowalski"
7"Museum"
8"Eva"
places
0"Mornington"
1"Crescent"
2"London"
globalScore0.702
windowScore0.667
90.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences125
glossingSentenceCount3
matches
0"looked like coins at first glance"
1"something like crushed mica in the seams"
2"appeared beside Patel, camera ready"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount2261
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences297
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs171
mean13.22
std13.91
cv1.052
sampleLengths
04
129
226
353
410
554
626
715
81
949
101
1137
1212
1348
144
154
1645
174
1810
198
2012
2115
223
2364
2413
253
268
271
2818
295
3053
3125
324
335
348
355
361
3718
388
394
4027
416
422
433
4422
4516
461
4716
483
4950
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences213
matches
0"been prised"
1"been bricked"
2"been slashed"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs272
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences297
ratio0
matches(empty)
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1697
adjectiveStacks1
stackExamples
0"green against old brass."
adverbCount46
adverbRatio0.027106658809664112
lyAdverbCount4
lyAdverbRatio0.002357100766057749
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences297
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences297
mean7.61
std6.02
cv0.79
sampleLengths
04
129
28
33
415
523
67
723
810
917
103
114
127
1323
142
151
1623
1715
181
1919
2010
2120
221
2312
2425
256
263
273
2817
294
303
312
3213
334
345
354
364
3713
389
397
401
411
4214
434
4410
458
467
475
4812
493
66.55% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats14
diversityRatio0.4276094276094276
totalSentences297
uniqueOpeners127
54.35% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences184
matches
0"Then three smaller marks beneath"
1"Instead, two shallow heel marks"
2"Then, from beneath the black"
ratio0.016
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount27
totalSentences184
matches
0"His right hand gripped the"
1"His left arm stretched towards"
2"His blue nitrile gloves looked"
3"Her knees clicked."
4"She ignored them."
5"His shoes carried grey dust"
6"It looked wet."
7"She lifted her foot."
8"His pen stilled."
9"Her short plait brushed her"
10"His mouth hung open."
11"He had dragged himself."
12"She stepped to the carriage"
13"Its windows carried a film"
14"Her watch ticked once, too"
15"She looked at her left"
16"Her jaw tightened."
17"She moved down the aisle."
18"Her shoes stirred dust that"
19"It spun once, shivered, then"
ratio0.147
55.11% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount149
totalSentences184
matches
0"Detective Harlow Quinn’s voice cut"
1"The discs looked like coins"
2"Human, if the faint porous"
3"A dead man lay half"
4"His right hand gripped the"
5"His left arm stretched towards"
6"Someone had drawn a circle"
7"Quinn stepped over the flaking"
8"Soot in the grout."
9"Posters bleached to ghosts behind"
10"A rusted sign that still"
11"DS Patel stood near the"
12"His blue nitrile gloves looked"
13"Patel glanced past her at"
14"Quinn crouched outside the salt"
15"Her knees clicked."
16"She ignored them."
17"The man’s coat had been"
18"Mud streaked the hem."
19"His shoes carried grey dust"
ratio0.81
27.17% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences184
matches
0"Now the place crawled with"
ratio0.005
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences63
technicalSentenceCount2
matches
0"A dead man lay half in, half out of a Tube carriage that had not run on any public line since the seventies."
1"His left arm stretched towards the platform edge, fingers hooked as if he had clawed at the air and found nothing worth holding."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags7
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount2
fancyTags
0"a maintenance crew reported (report)"
1"the stairwell shouted (shout)"
dialogueSentences91
tagDensity0.022
leniency0.044
rawRatio1
effectiveRatio0.044
90.7598%