Run: 2026-07-09-01KX41CVFAQ4BJ78YFBX7CH081

Run Details

Duration:
12.8s
Cost:
$0.013234
Provider:
OpenAI

Model input

System
You are an expert fiction writer. Always keep the following rules in mind: - Write in past tense and use General English spelling, grammar, and colloquialisms/slang. - Write in active voice - Always follow the "show, don't tell" principle. - Avoid adverbs and cliches and overused/commonly used phrases. Aim for fresh and original descriptions. - Convey events and story through dialogue. - Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. - Skip "he/she said said" dialogue tags and convey people's actions or face expressions through their speech - Avoid mushy dialog and descriptions, have dialogue always continue the action, never stall or add unnecessary fluff. Vary the descriptions to not repeat yourself. - Put dialogue on its own paragraph to separate scene and action. - Reduce indicators of uncertainty like "trying" or "maybe" When writing text: - NEVER conclude the scene on your own, follow the beat instructions very closely. - NEVER end with foreshadowing. - NEVER write further than what I prompt you with. - AVOID imagining possible endings, NEVER deviate from the instructions. - STOP EARLY if the continuation contains what was required in the instructions. You do not need to fill out the full amount of words possible.
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <codex> <character id="4412" name="Aurora Carter" aliases="Rory, Laila, Aurora, Carter, Malphora" pronouns="she/her" species="Human" storyRole="Protagonist"> <eyeColor>bright blue</eyeColor> <hair>straight shoulder-length black</hair> <height>5'6"</height> <age>25</age> <scar>small crescent-shaped scar on her left wrist from a childhood accident</scar> <description>Aurora, referred to by her friends as Rory, is cool-headed, intelligent, and known for quick out-of-the-box thinking.</description> <backstory>Born in Cardiff to an Irish barrister father (Brendan Carter) and Welsh teacher mother (Jennifer Carter née Ellis), Rory reluctantly pursued Pre-Law at Cardiff University. She fled to London at the behest of her childhood friend Eva after leaving an abusive ex named Evan. By day, Rory works part-time as a delivery person for Yu-Fei Cheung's Golden Empress restaurant. She lives in a flat above Silas' bar.</backstory> </character> <location id="861" name="The Fae Grove" aliases="Isolde's grove, Richmond grove, the Grove" realm="Earth (Fae-touched)"> <parkLocation>Richmond Park</parkLocation> <standingStones>ancient oak standing stones mark the boundary</standingStones> <timeBehavior>time moves differently — an hour inside can be minutes or days outside</timeBehavior> <flora>wildflowers bloom year-round</flora> <description>A hidden clearing that exists in a pocket between Earth and the Fae realm.</description> </location> <item id="2001" name="Heartstone Pendant" aliases="the pendant, Heartstone" type="Artifact" origin="Dymas"> <gemstoneColor>deep crimson</gemstoneColor> <chainMaterial>silver chain</chainMaterial> <size>roughly the size of a thumbnail</size> <behavior>pulses faintly with warmth when near a Hel portal</behavior> <glow>faint inner glow</glow> <description>Given to Aurora by an unknown benefactor.</description> </item> </codex> Continue the story using the following instructions: <instructions> Write a fully fleshed out scene of at least 1000 words in the horror genre. A character is alone in a strange, isolated place at night. They came here for a reason, but something feels off from the moment they arrive. The wrongness builds slowly — sounds that shouldn't be there, things that move at the edge of vision, a growing certainty that they are not alone. Build tension through restraint, not through gore. Use the codex entries above as your world reference for the character and setting. Only include the prose of the scene without any markdown or commentary. </instructions>

Model response

AI
Aurora Carter crossed the boundary at half past eleven. The standing stones rose from the grass like black teeth, each one slick with rain that had fallen nowhere else in Richmond Park. Beyond them, the grove waited beneath an unbroken canopy of oak branches. Wildflowers crowded the clearing in pale clusters—foxglove, buttercup, bluebell—though winter had stripped the rest of the park bare. Aurora paused with one hand on the nearest stone. Its surface felt warm. She pulled her fingers back. “Right,” she muttered. “That’s normal.” The grove gave no answer. She stepped through. The air changed first. London’s cold damp vanished. A green scent filled her lungs, rich with crushed stems and wet bark. The ground softened beneath her trainers. Behind her, the park’s distant traffic faded until the silence seemed to press against her eardrums. Aurora turned. The standing stones still marked the boundary, but the gaps between them had narrowed. Beyond the stones, darkness lay thick beneath the trees. No lamps shone through the branches. No road hummed. No city breathed. She checked her phone. 11:31 p.m. The screen showed one bar of signal, then none. She slipped the phone into her coat pocket and touched the pendant at her throat. The Heartstone rested beneath her jumper, a thumbnail-sized piece of deep crimson stone on a silver chain. It held a faint inner glow. Warmth spread from it into her palm. That had brought her here. Three nights earlier, the pendant had pulsed beside the kitchen window. Not once. Not a flicker caused by reflected light. It had throbbed against her skin in a slow, deliberate rhythm. Tonight, it had led her to Richmond Park. To the stones. To the grove. Aurora moved along the edge of the clearing, scanning the dark between the trunks. She had expected a portal. A tear in the air. A doorway. Something she could point at and explain to herself. Instead, the grove looked almost ordinary. That made it worse. She reached into her pocket and found the small brass key Eva had given her. The key had no teeth and no lock. Eva had pressed it into her hand before disappearing for two days, her face drained of colour. “Go alone,” Eva had warned. Aurora had laughed then. Eva hadn’t. Now the key felt cold against her fingers. A twig snapped behind her. Aurora froze. The sound had come from the boundary. She kept her eyes on the clearing. “Eva?” The name travelled across the grass and died beneath the oaks. No reply. Aurora turned slowly. The stones stood in their crooked ring. One of them leaned at an angle that made the darkness beyond it appear deeper than the surrounding night. A shape shifted there. She caught it in the corner of her eye—a pale vertical smear between two trunks. When she looked straight at it, nothing remained. Aurora lifted her phone and switched on the torch. The beam cut across the grass, catching beads of moisture on the flower heads. Each drooping blossom held a black centre. She walked towards the boundary. The light trembled across the stones. Moss clung to their bases in thick, bright mats. Something had scratched a line into the nearest slab. Three narrow grooves ran from shoulder height to the ground. Aurora crouched. The grooves looked fresh. Stone dust lay at their edges. A faint rustle came from the flowers behind her. She stood. The torchlight swept the clearing. Nothing. “Enough,” she whispered. Her voice sounded too small. She cleared her throat and tried again. “Eva, if you’re here, come out.” A second voice answered from the trees. “Come out.” Aurora’s stomach tightened. It had repeated her words in her own voice. Not an echo. The sound had carried from the far side of the grove, low and breathless, with the same clipped shape she used when frightened. She pointed the torch towards it. The beam stopped at the tree line. The darkness beyond seemed to have moved closer. Aurora backed away from the stones. Her heel caught a root and she stumbled, catching herself against an oak. Its bark pulsed under her palm. Once. Twice. The Heartstone answered beneath her clothes. Warmth spread across her chest. A faint red glow showed through the fabric. Aurora pulled the pendant out. Its crimson surface brightened, casting a weak stain across her fingers. The air ahead of her shivered. A thin vertical line appeared between two oaks. It looked like a cut in the night, no wider than a knife blade. Crimson light glimmered inside it. Aurora took one step forward. The line closed. The trees stood solid and silent. She clenched the pendant until the chain bit into her skin. A laugh sounded behind her. It belonged to Eva. Aurora spun around. “Eva?” The clearing remained empty. The laugh came again, closer this time. It rose from somewhere near the flowers, a breathy little burst followed by a wet cough. Aurora’s hand went to the scar on her left wrist. Her fingers found the small crescent beneath her sleeve and pressed hard. She forced herself to breathe through her nose. The grove had rules. Everything strange had rules. The portal responded to the pendant. The stones marked the entrance. Eva had come here before. Eva had left instructions. Aurora pulled the brass key from her pocket. A narrow keyhole opened in the nearest standing stone. She stared at it. The hole had not been there a moment ago. It sat at waist height, cut into the dark rock with perfect edges. Behind her, the flowers rustled again. This time, something passed through them. The heads bent in a line, one after another, travelling towards her from the far side of the clearing. No body disturbed the stems. Only the blossoms moved, their pale faces nodding as an invisible presence crossed the grass. Aurora placed the key against the stone. A voice spoke beside her ear. “You came late.” She jerked away. The key fell into the grass. For one terrible second, she felt breath against her cheek. Then the space beside her emptied. Aurora stared at the place where someone had stood. Her torch lay on the ground, its beam aimed across the roots. The light revealed a line of flattened flowers leading from the stone to the centre of the clearing. She snatched up the torch and searched the grass. The key had vanished. “No,” she said. The word came out flat. She dropped to her knees, sweeping the beam beneath the flowers. Her hands parted damp stems and black soil. The key should have been there. She had watched it land. A shadow crossed the torchlight. Aurora stopped moving. The shadow stretched across the grass from behind her. It had the shape of a person standing tall and thin, head bent at an angle. Aurora’s breath caught. She looked at the stone. No one stood there. The shadow remained. Its head turned. Aurora closed her fingers around the pendant and rose without taking her eyes from the ground. The shadow lengthened, reaching past her feet. Its fingers spread over the flowers. Her phone buzzed in her pocket. The sudden vibration made her flinch. She pulled it out. The screen showed one new message. FROM EVA: DON’T LET IT HEAR YOU ANSWER. Aurora read the words twice. Another message appeared beneath it. FROM EVA: IT USES YOUR VOICE FIRST. A third followed. FROM EVA: I’M STILL INSIDE. Aurora’s torch slipped from her hand. The beam spun across the clearing before settling on the standing stones. Between two of them, a figure stood with its back turned. Aurora recognised the coat. Eva’s green parka. Mud streaked the hem. One sleeve hung loose. Aurora took a step towards her. “Eva?” The figure’s shoulders lifted. Aurora clamped both hands over her mouth. The figure turned. Its face remained hidden beneath the hood, but Eva’s voice drifted across the grove. “You came late.” Aurora backed away. The pendant pulsed against her palm, hot enough to hurt. The figure took one step. The flowers bent around its boots. Aurora glanced at the stones. The keyhole waited in the nearest slab, dark and clean. The brass key lay beside it in the grass, though she had searched that spot moments earlier. She moved sideways, keeping the hooded figure in view. It followed. Not with footsteps. The ground dipped beneath each flower ahead of it, then rose behind it. A path formed through the clearing without showing what made it. Aurora reached the stone and seized the key. The figure stopped. The grove fell silent. Even the leaves held still. Aurora fitted the key into the hole. It turned without resistance. The standing stone opened down the middle. A red line split the rock, then widened into a narrow doorway. Beyond it lay no forest and no sky. Only a passage filled with crimson darkness. The air that came through smelled of iron, cold rain and something sweet left too long in a sealed room. The figure spoke. “Don’t.” Aurora kept her hands on the key. The voice changed. It became her father’s, warm and stern. “Rory, step away from that.” Her mother’s voice followed, trembling. “Aurora, please.” Then Evan’s. “You never listened.” Aurora’s fingers tightened around the key. The old fear rose with his voice, sharp and familiar, but she forced it down. The hooded figure moved closer. Its face remained hidden. “Aurora,” it called in Eva’s voice. “Look at me.” She did not. She stepped through the doorway. The stone closed behind her. The last thing she heard came from the other side, spoken in her own voice. “I’m still inside.”
created_at"2026-07-09T18:14:17.333Z" 7/9/2026, 6:14:17 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency494
moderation_latency(null)
generation_time12204
tokens_prompt1038
tokens_completion2674
native_tokens_prompt916
native_tokens_completion2053
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.013234
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_0ee5f6f4f5332871016a4fe4f96e008197abfb4840e63d664e"
is_byokfalse
latency255
model_permaslug"openai/gpt-5.6-luna-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620857-h2HGjhvyEQhnn1Txzi2p"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620857-sYKsSzEDTe9RG9nbYoso"
upstream_id"resp_0ee5f6f4f5332871016a4fe4f96e008197abfb4840e63d664e"
total_cost0.013234
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags5
adverbTagCount0
adverbTags(empty)
dialogueSentences19
tagDensity0.263
leniency0.526
rawRatio0
effectiveRatio0
96.90% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1615
totalAiIsmAdverbs1
found
0
adverb"slowly"
count1
highlights
0"slowly"
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)
50.46% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1615
totalAiIsms16
found
0
word"silence"
count1
1
word"warmth"
count2
2
word"pulsed"
count3
3
word"flicker"
count1
4
word"throbbed"
count1
5
word"scanning"
count1
6
word"trembled"
count1
7
word"stomach"
count1
8
word"echo"
count1
9
word"perfect"
count1
10
word"footsteps"
count1
11
word"familiar"
count1
12
word"the last thing"
count1
highlights
0"silence"
1"warmth"
2"pulsed"
3"flicker"
4"throbbed"
5"scanning"
6"trembled"
7"stomach"
8"echo"
9"perfect"
10"footsteps"
11"familiar"
12"the last thing"
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
narrationSentences223
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount2
narrationSentences223
filterMatches
0"HEAR"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences237
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen23
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1612
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions7
unquotedAttributions0
matches(empty)
33.33% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions50
wordCount1570
uniqueNames7
maxNameDensity2.04
worstName"Aurora"
maxWindowNameDensity4
worstWindowName"Aurora"
discoveredNames
Carter1
Richmond2
Park2
Heartstone2
Eva10
Aurora32
Evan1
persons
0"Carter"
1"Heartstone"
2"Eva"
3"Aurora"
4"Evan"
places
0"Richmond"
1"Park"
globalScore0.481
windowScore0.333
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences121
glossingSentenceCount1
matches
0"looked like a cut in the night, no wider"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1612
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences237
matches
0"searched that spot"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs165
mean9.77
std10.8
cv1.106
sampleLengths
09
153
29
34
45
55
65
73
843
92
1035
114
122
139
1445
155
1631
178
183
193
2035
216
224
2340
245
254
262
278
285
292
307
317
321
3311
342
3529
364
3715
388
3930
405
4134
422
4310
449
452
465
471
483
4912
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences223
matches(empty)
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs264
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount0
flaggedSentences2
totalSentences237
ratio0.008
matches
0"Wildflowers crowded the clearing in pale clusters—foxglove, buttercup, bluebell—though winter had stripped the rest of the park bare."
1"She caught it in the corner of her eye—a pale vertical smear between two trunks."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1574
adjectiveStacks0
stackExamples(empty)
adverbCount32
adverbRatio0.020330368487928845
lyAdverbCount4
lyAdverbRatio0.0025412960609911056
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences237
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences237
mean6.8
std4.38
cv0.645
sampleLengths
09
123
212
318
49
54
65
73
82
95
103
114
124
1313
146
1516
162
1714
189
196
203
213
224
232
249
2515
2617
276
287
295
3011
312
327
3311
348
353
363
3714
385
395
402
419
426
434
4415
458
4617
475
484
492
42.41% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats18
diversityRatio0.21518987341772153
totalSentences237
uniqueOpeners51
82.10% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount5
totalSentences203
matches
0"Instead, the grove looked almost"
1"Only the blossoms moved, their"
2"Then the space beside her"
3"Even the leaves held still."
4"Only a passage filled with"
ratio0.025
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount50
totalSentences203
matches
0"Its surface felt warm."
1"She pulled her fingers back."
2"She stepped through."
3"She checked her phone."
4"She slipped the phone into"
5"It held a faint inner"
6"It had throbbed against her"
7"She had expected a portal."
8"She reached into her pocket"
9"She kept her eyes on"
10"She caught it in the"
11"She walked towards the boundary."
12"Her voice sounded too small."
13"She cleared her throat and"
14"It had repeated her words"
15"She pointed the torch towards"
16"Her heel caught a root"
17"Its bark pulsed under her"
18"Its crimson surface brightened, casting"
19"It looked like a cut"
ratio0.246
31.43% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount174
totalSentences203
matches
0"Aurora Carter crossed the boundary"
1"The standing stones rose from"
2"Wildflowers crowded the clearing in"
3"Aurora paused with one hand"
4"Its surface felt warm."
5"She pulled her fingers back."
6"The grove gave no answer."
7"She stepped through."
8"The air changed first."
9"London’s cold damp vanished."
10"A green scent filled her"
11"The ground softened beneath her"
12"The standing stones still marked"
13"She checked her phone."
14"The screen showed one bar"
15"She slipped the phone into"
16"The Heartstone rested beneath her"
17"It held a faint inner"
18"Warmth spread from it into"
19"That had brought her here."
ratio0.857
73.89% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount3
totalSentences203
matches
0"To the stones."
1"To the grove."
2"Now the key felt cold"
ratio0.015
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences47
technicalSentenceCount1
matches
0"One of them leaned at an angle that made the darkness beyond it appear deeper than the surrounding night."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags5
uselessAdditionCount0
matches(empty)
44.74% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags4
fancyCount2
fancyTags
0"she muttered (mutter)"
1"she whispered (whisper)"
dialogueSentences19
tagDensity0.211
leniency0.421
rawRatio0.5
effectiveRatio0.211
88.5089%