NC Bench
Overview
About
Tests
Models
Model
Claude Sonnet 4.5
Test
Dialogue tags
Scenario
Write 500 words with 50% dialogue
Run ID
2026-02-08-01KGYZYYM0BCXAJ51KPQCQN0SB
Model input
User/Human
You are a author of comedic heist books. Please write a 500 word scene that has 50% words of dialogue between two thieves named Molly and Bill who are planning to break into a children's party to steal all the presents. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
Molly pressed her face against the chain-link fence, watching dozens of screaming children demolish a superhero-themed piƱata. She pulled out a small notepad and began sketching the backyard layout. Bill appeared beside her, holding two ice cream cones. "Reconnaissance is easier when you blend in," he said, offering her the strawberry one. "We're forty-year-olds lurking outside a kid's birthday party. Ice cream makes it worse." "Does it though?" Bill licked his cone thoughtfully. "I'm thinking we go in through the side gate around three-thirty. That's when they'll be doing cake." "Too obvious. Everyone's still outside during cake. We need maximum distraction." Molly pointed toward the garage. "See that door? Ten bucks says it's unlocked. These suburban parents never lock anything." "You want to go through the garage during the party?" "No, genius. We wait until present time. They all go inside, form that little circle, the kid starts ripping paper. That's our window." Bill nodded slowly. "The parents will be filming. Eyes on the birthday boy." "Exactly. We slip in, grab the haul, and exit through the front door. They've probably got two dozen cars parked on the street. We'll disappear in the chaos." "What about the present table? Those things are usually right in the main area." Molly grinned. "That's why we're disguised as the entertainment." "The entertainment?" "I booked us as backup balloon artists. Apparently the original guy just cancelled." Bill stopped mid-lick. "You didn't." "Check your phone. You're now William Twisty, and I'm Magnificent Molly. We've got a whole website." "You made a website?" "Relax, I used a template. Cost me twelve dollars." Bill scrolled through his phone, his expression shifting from panic to admiration. "These balloon animals are terrible." "That's the beauty of it. We're backup balloon artists. Nobody expects excellence. We show up, make some dogs that look like snakes, and position ourselves near the presents." "And then what, just walk out with armfuls of wrapped boxes?" "We bring a donation bin. Tell them we're collecting for charity after every gig. It's literally our thing." Molly showed him the website again. "See? William Twisty Gives Back." "That's actually kind of brilliant." "Thank you." "Morally bankrupt, but brilliant." "Says the man literally robbing children." Bill finished his cone and wiped his hands. "To be fair, kids today get too much stuff anyway. We're teaching them about loss and disappointment. Building character." "That's the spirit." Molly checked her watch. "We've got forty-five minutes. There's a Party City two blocks over. You need a vest or a bow tie or something." "What are you wearing?" "Already got it. Rainbow suspenders and a top hat. I look ridiculous." "Perfect. Let's go ruin some kid's birthday." They walked toward the car as another wave of screams erupted from the backyard.
created_at
"2026-02-08T16:04:57.109793+00:00"
Sunday, February 8th, 2026 at 4:04:57 PM GMT+00:00
model
"anthropic/claude-4.5-sonnet-20250929"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1601
moderation_latency
164
generation_time
17004
tokens_prompt
61
tokens_completion
633
native_tokens_prompt
75
native_tokens_completion
731
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
0.01119
router
(null)
provider_responses
0
id
"f79403d9-4a0b-4474-a194-2c8c45c6718a"
status
200
is_byok
false
latency
1601
endpoint_id
"d8bee848-f020-454a-b2be-4a7ce868f99f"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-sonnet-20250929"
api_type
"completions"
id
"gen-1770566679-MBFQTgMOH2bw4xOozbKv"
upstream_id
"f79403d9-4a0b-4474-a194-2c8c45c6718a"
total_cost
0.01119
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
0.0007%
Matches word count
n/a
neededClean
false
words
467
0.0000%
Dialogue to Total Word Ratio
Ratio: 76.45%, Deviation: 26.45%
neededClean
false
wordsTotal
467
wordsDialogue
357
0.0004%