NC Bench
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Run: 2026-02-19-01KHSZ0AQT2Z2VXE7MA4E7HC9D
Run Details
Model:
GPT-4o, May 13th (temp=0)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
12.6s
Cost:
$0.032395
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
100.00%
Adverbs in dialogue tags
(details)
96.47%
AI-ism adverb frequency
(details)
100.00%
AI-ism character names
(details)
100.00%
AI-ism location names
(details)
4.66%
AI-ism word frequency
(details)
0.00%
Cliché density
(details)
100.00%
Emotion telling (show vs. tell)
(details)
51.28%
Filter word density
(details)
100.00%
Gibberish response detection
(details)
100.00%
Markdown formatting overuse
(details)
100.00%
Missing dialogue indicators (quotation marks)
(details)
0.00%
Name drop frequency
(details)
100.00%
Narrator intent-glossing
(details)
100.00%
"Not X but Y" pattern overuse
(details)
100.00%
Overuse of "that" (subordinate clause padding)
(details)
100.00%
Paragraph length variance
(details)
82.77%
Passive voice overuse
(details)
100.00%
Past progressive (was/were + -ing) overuse
(details)
91.38%
Em-dash & semicolon overuse
(details)
100.00%
Purple prose (modifier overload)
(details)
100.00%
Repeated phrase echo
(details)
100.00%
Sentence length variance
(details)
52.85%
Sentence opener variety
(details)
0.00%
Adverb-first sentence starts
(details)
100.00%
Pronoun-first sentence starts
(details)
43.33%
Subject-first sentence starts
(details)
0.00%
Subordinate conjunction sentence starts
(details)
100.00%
Technical jargon density
(details)
0.00%
Useless dialogue additions
(details)
100.00%
Dialogue tag variety (said vs. fancy)
(details)
74.0915%
Overall
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="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> Continue the story using 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 stepped out
of the unmarked car, her boots crunching on the gravel of the abandoned Tube station beneath Camden.
The air was thick with
the scent of damp and decay, mingling with the faint, acrid tang of something she couldn't
quite place
.
She adjusted the worn leather
watch
on her left wrist, a habit she had picked up since losing DS Morris.
The memory of her partner's
death still gnawed at her, a constant
reminder
of the supernatural undercurrents that had begun to seep into her life. "Quinn, over here," called a voice from the shadows.
It was DS Harper, a
younger detective with a penchant for jumping to conclusions.
He stood near the entrance
to the Veil Market, his flashlight casting long, eerie shadows on the walls.
Harlow approached, her sharp jaw
set in a
determined
line. "What have we got, Harper?" "Body's over there,"
he said, pointing to a
dark corner. "Looks like a mugging gone wrong. But something's off."
Harlow followed his gaze, her
eyes narrowing as she took in the scene. The victim, a middle-aged man, lay sprawled on the ground, his face twisted in a grimace of pain.
His clothes were torn, and
his pockets had
been turned
inside out. But it was the markings on the ground that caught her attention—strange,
intricate
symbols
etched
into the dirt around the body. "These symbols,"
she muttered, crouching down to
get a closer look. "They don't look like anything a common mugger would leave behind."
Harper shrugged, his flashlight beam
wavering
. "Maybe it's some kind of gang thing. You know how these underground markets attract all sorts."
Harlow shook her head, her
salt-and-pepper hair catching the dim light. "No, this is something else. Something... older."
She reached into her coat
pocket and pulled out a small brass compass, its casing covered in a patina of verdigris. The Veil Compass.
She had acquired it from
the Market months ago, a tool crafted by a Shade artisan to detect supernatural energy.
She held it up, watching
as the needle spun wildly before settling in the direction of the symbols. "There's a rift nearby,"
she said, more to herself
than to Harper. "These symbols are meant to channel its energy." Harper frowned, his brow
furrowing
. "A rift? You mean like a portal or something?" "Exactly," Harlow replied, standing up. "And whoever did this knew exactly what they were doing."
She began to pace around
the scene, her eyes
scanning
every detail. The symbols, the positioning of the body, the faint, acrid smell in the air—it all pointed to a ritual of some kind. But what kind? "Harper, get me the victim's ID,"
she ordered, her mind racing
. "I need to know who he is and why he was here." Harper nodded and moved to the body,
carefully
extracting a wallet from the man's jacket. "Name's Richard Lawson. No priors, no known affiliations with any gangs or criminal organizations. Just a regular guy, it seems." Harlow took the wallet, flipping through its contents. Credit cards, a driver's license, a few crumpled receipts. Nothing out of the ordinary. But then she found a small, bone token tucked away in a hidden pocket. The entry requirement for the Veil Market. "Looks like Lawson was a regular at the Market,"
she said, holding up the
token. "But why would someone go to such lengths to kill him here?" Harper shrugged again, his expression one of confusion. "Maybe he saw something he shouldn't have. Or maybe he was involved in something deeper than we know." Harlow's
eyes narrowed
as she considered the possibilities. "There's more to this than meets the eye. We need to find out what Lawson was up to and who he was dealing with."
She turned her attention back
to the symbols, her mind working through the puzzle.
They were intricate, precise, and
clearly meant to channel some kind of energy. But what kind? And why here, in the
depths
of an abandoned Tube station? "Harper, I need you to get in touch with Eva Kowalski,"
she said, her voice firm
. "She's an occult researcher at the British Museum. If anyone can make
sense of
these symbols, it's her." Harper nodded, pulling out his phone. "On it, Quinn." As he made the call, Harlow continued to study the scene, her mind
racing
with possibilities. The Veil Market was a place of secrets and shadows, a hidden world where the supernatural and the mundane collided. And now, it seemed, those worlds had collided with deadly consequences.
She glanced at the Veil
Compass in her hand, its needle still pointing toward the symbols. Whatever had happened here, it was far from over. And she
was determined
to get to the bottom of it, no matter what it took. Minutes later, Harper returned, his expression grim. "Kowalski's on her way. She said she'll be here in twenty minutes." Harlow nodded, her eyes never leaving the symbols. "Good. In the meantime, let's secure the scene and make sure no one else stumbles onto this." As they worked, Harlow's mind kept returning to the same question: What had Richard Lawson
been involved
in? And who had wanted him dead so badly that they had resorted to such dark, ancient methods? The sound of
footsteps
echoed
through the station, and Harlow looked up to see Eva Kowalski approaching, her curly red hair and round glasses unmistakable even in the dim light.
She carried a worn leather
satchel, its contents bulging with books and papers. "Harlow," Eva greeted, tucking a strand of hair behind her left ear. "Harper said you needed my expertise." "Eva, thank you for coming," Harlow replied, gesturing to the symbols. "We found these around the body. I need to know what they mean." Eva knelt down, her green eyes
scanning
the symbols with practiced precision. "These are ancient sigils, used in rituals to channel supernatural energy. Whoever did this knew exactly what they were doing." Harlow's jaw tightened. "Can you tell what kind of ritual it was?" Eva nodded, her fingers
tracing
the lines of the symbols. "It's a binding ritual, meant to trap or contain something. But it's incomplete. Whoever did this was interrupted or didn't finish for some reason." Harlow's mind
raced
. "A binding ritual? To trap what?" Eva's eyes met hers,
a flicker of fear
in their
depths
. "Something powerful. Something dangerous." Harlow's grip on the Veil Compass tightened. "We need to find out what Lawson was involved in and who wanted him dead. And we need to do it fast." Eva nodded, her expression
determined
. "I'll start researching these symbols and see if I can find any connections. In the meantime, be careful, Harlow. Whoever did this won't hesitate to strike again." Harlow's eyes hardened. "I know. And I won't stop until I find them." As Eva
began to
unpack her books and papers, Harlow turned her attention back to the scene, her mind working through the puzzle. The Veil Market was a place of secrets, and she
was determined
to uncover them all, no matter the cost. The acrid smell in the air
seemed to
grow stronger, and Harlow's
eyes narrowed
as she followed it to a small, charred object near the body.
She picked it up, her
fingers brushing against the burnt edges.
It was a piece of
parchment, its surface covered in more of the strange symbols. "Eva, look at this," she called, holding up the parchment. Eva's
eyes widened
as she took the parchment, her fingers
tracing
the symbols. "This is a spell, Harlow. A powerful one. Whoever cast it was trying to summon something." Harlow's jaw tightened. "Summon what?" Eva's eyes met hers,
a flicker of fear
in their
depths
. "Something from the other side. Something that should never be brought into our world." Harlow's grip on the Veil Compass tightened. "We need to find out who did this and stop them. Before it's too late." Eva nodded, her expression
determined
. "I'll start researching these symbols and see if I can find any connections. In the meantime, be careful, Harlow. Whoever did this won't hesitate to strike again." Harlow's eyes hardened. "I know. And I won't stop until I find them." As Eva
began to
unpack her books and papers, Harlow turned her attention back to the scene, her mind working through the puzzle. The Veil Market was a place of secrets, and she
was determined
to uncover them all, no matter the cost.
created_at
"2026-02-19T03:27:25.441Z"
2/19/2026, 3:27:25 AM
model
"openai/gpt-4o-2024-05-13"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
237
moderation_latency
(null)
generation_time
12432
tokens_prompt
1149
tokens_completion
2128
native_tokens_prompt
1010
native_tokens_completion
1823
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.032395
router
(null)
provider_responses
0
endpoint_id
"3d6584e7-a2bb-48d6-903d-24e3d90e7e55"
id
"chatcmpl-DAozF4UsA3vtg8rvfK9Qq3lwbnUX0"
is_byok
false
latency
218
model_permaslug
"openai/gpt-4o-2024-05-13"
provider_name
"OpenAI"
status
200
api_type
"completions"
id
"gen-1771471645-Zev0BHUKFrICNdcPmg0R"
upstream_id
"chatcmpl-DAozF4UsA3vtg8rvfK9Qq3lwbnUX0"
total_cost
0.032395
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
10
adverbTagCount
0
adverbTags
(empty)
dialogueSentences
44
tagDensity
0.227
leniency
0.455
rawRatio
0
effectiveRatio
0
96.47%
AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount
1416
totalAiIsmAdverbs
1
found
0
adverb
"carefully"
count
1
highlights
0
"carefully"
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)
4.66%
AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount
1416
totalAiIsms
27
found
0
word
"reminder"
count
1
1
word
"determined"
count
6
2
word
"intricate"
count
2
3
word
"etched"
count
1
4
word
"wavering"
count
1
5
word
"furrowing"
count
1
6
word
"scanning"
count
2
7
word
"racing"
count
2
8
word
"depths"
count
3
9
word
"sense of"
count
1
10
word
"footsteps"
count
1
11
word
"echoed"
count
1
12
word
"tracing"
count
2
13
word
"raced"
count
1
14
word
"flicker"
count
2
highlights
0
"reminder"
1
"determined"
2
"intricate"
3
"etched"
4
"wavering"
5
"furrowing"
6
"scanning"
7
"racing"
8
"depths"
9
"sense of"
10
"footsteps"
11
"echoed"
12
"tracing"
13
"raced"
14
"flicker"
0.00%
Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches
6
maxInWindow
5
found
0
label
"eyes widened/narrowed"
count
3
1
label
"air was thick with"
count
1
2
label
"flicker of emotion"
count
2
highlights
0
"eyes narrowed"
1
"eyes widened"
2
"The air was thick with"
3
"a flicker of fear"
100.00%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
2
narrationSentences
78
matches
0
"a flicker of fear"
1
"a flicker of fear"
51.28%
Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount
1
hedgeCount
4
narrationSentences
78
filterMatches
0
"watch"
hedgeMatches
0
"began to"
1
"seemed to"
100.00%
Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences
111
gibberishSentences
0
adjustedGibberishSentences
0
longSentenceCount
0
runOnParagraphCount
0
giantParagraphCount
0
wordSaladCount
0
repetitionLoopCount
0
controlTokenCount
0
maxSentenceWordsSeen
30
ratio
0
matches
(empty)
100.00%
Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans
0
markdownWords
0
totalWords
1411
ratio
0
matches
(empty)
100.00%
Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions
15
unquotedAttributions
1
matches
0
"As he made the call, Harlow continued to study the scene, her mind racing with possibilities."
0.00%
Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions
69
wordCount
926
uniqueNames
14
maxNameDensity
2.38
worstName
"Harlow"
maxWindowNameDensity
5
worstWindowName
"Harlow"
discoveredNames
Harlow
22
Quinn
1
Tube
2
Camden
1
Morris
1
Harper
8
Veil
9
Market
6
Compass
4
Shade
1
Richard
1
Lawson
1
Eva
11
Kowalski
1
persons
0
"Harlow"
1
"Quinn"
2
"Morris"
3
"Harper"
4
"Compass"
5
"Richard"
6
"Lawson"
7
"Eva"
8
"Kowalski"
places
0
"Veil"
1
"Market"
globalScore
0.312
windowScore
0
100.00%
Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences
63
glossingSentenceCount
1
matches
0
"quite place"
100.00%
"Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches
0
per1kWords
0
wordCount
1411
matches
(empty)
100.00%
Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount
0
totalSentences
111
matches
(empty)
100.00%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
48
mean
29.4
std
16.1
cv
0.548
sampleLengths
0
90
1
41
2
15
3
19
4
64
5
22
6
22
7
18
8
62
9
20
10
14
11
15
12
37
13
23
14
35
15
43
16
27
17
26
18
32
19
41
20
34
21
9
22
47
23
41
24
19
25
25
26
35
27
43
28
18
29
24
30
32
31
12
32
34
33
9
34
15
35
29
36
32
37
13
38
43
39
52
40
10
41
29
42
5
43
25
44
22
45
32
46
13
47
43
82.77%
Passive voice overuse
Target: ≤2% passive sentences
passiveCount
5
totalSentences
78
matches
0
"were torn"
1
"been turned"
2
"was determined"
3
"been involved"
4
"was determined"
5
"was determined"
100.00%
Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount
0
totalVerbs
154
matches
(empty)
91.38%
Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount
2
semicolonCount
0
flaggedSentences
2
totalSentences
111
ratio
0.018
matches
0
"But it was the markings on the ground that caught her attention—strange, intricate symbols etched into the dirt around the body."
1
"The symbols, the positioning of the body, the faint, acrid smell in the air—it all pointed to a ritual of some kind."
100.00%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
931
adjectiveStacks
0
stackExamples
(empty)
adverbCount
18
adverbRatio
0.01933404940923738
lyAdverbCount
6
lyAdverbRatio
0.00644468313641246
100.00%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
111
echoCount
0
echoWords
(empty)
100.00%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
111
mean
12.71
std
6.5
cv
0.511
sampleLengths
0
22
1
23
2
20
3
25
4
9
5
14
6
18
7
10
8
5
9
10
10
9
11
13
12
18
13
12
14
21
15
11
16
11
17
6
18
16
19
11
20
7
21
21
22
3
23
20
24
18
25
12
26
8
27
5
28
9
29
5
30
10
31
12
32
22
33
3
34
11
35
12
36
15
37
20
38
8
39
9
40
5
41
14
42
7
43
15
44
12
45
8
46
18
47
8
48
24
49
14
52.85%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
3
diversityRatio
0.3333333333333333
totalSentences
111
uniqueOpeners
37
0.00%
Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount
0
totalSentences
78
matches
(empty)
ratio
0
100.00%
Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount
21
totalSentences
78
matches
0
"She adjusted the worn leather"
1
"It was DS Harper, a"
2
"He stood near the entrance"
3
"he said, pointing to a"
4
"His clothes were torn, and"
5
"she muttered, crouching down to"
6
"She reached into her coat"
7
"She had acquired it from"
8
"She held it up, watching"
9
"she said, more to herself"
10
"She began to pace around"
11
"she ordered, her mind racing"
12
"she said, holding up the"
13
"She turned her attention back"
14
"They were intricate, precise, and"
15
"she said, her voice firm"
16
"She glanced at the Veil"
17
"She carried a worn leather"
18
"She picked it up, her"
19
"It was a piece of"
ratio
0.269
43.33%
Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount
65
totalSentences
78
matches
0
"Detective Harlow Quinn stepped out"
1
"The air was thick with"
2
"She adjusted the worn leather"
3
"The memory of her partner's"
4
"It was DS Harper, a"
5
"He stood near the entrance"
6
"Harlow approached, her sharp jaw"
7
"he said, pointing to a"
8
"Harlow followed his gaze, her"
9
"The victim, a middle-aged man,"
10
"His clothes were torn, and"
11
"she muttered, crouching down to"
12
"Harper shrugged, his flashlight beam"
13
"Harlow shook her head, her"
14
"She reached into her coat"
15
"The Veil Compass."
16
"She had acquired it from"
17
"She held it up, watching"
18
"she said, more to herself"
19
"Harper frowned, his brow furrowing."
ratio
0.833
0.00%
Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount
0
totalSentences
78
matches
(empty)
ratio
0
100.00%
Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences
43
technicalSentenceCount
1
matches
0
"The memory of her partner's death still gnawed at her, a constant reminder of the supernatural undercurrents that had begun to seep into her life."
0.00%
Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags
10
uselessAdditionCount
3
matches
0
"she said, more to herself than to Harper"
1
"she ordered, her mind racing"
2
"she said, her voice firm"
100.00%
Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags
9
fancyCount
2
fancyTags
0
"she muttered (mutter)"
1
"she ordered (order)"
dialogueSentences
44
tagDensity
0.205
leniency
0.409
rawRatio
0.222
effectiveRatio
0.091
74.0915%